My Mate

by LeenaFee

Summary:

On top of 80% of the population having quirks, there is also troublesome genders that can determine the hierarchy of the world.

Alpha, Omega, Beta. Typical.

Considering Alphas and Omegas tend to rule over anything considered of substance and popularity, number 4 hero Great Explosion Murder God Dynamite had managed just fine being a beta all his life.

Except, he can't escape the inconveniences of gender even then, as a particular green haired alpha he knows all too well apparently has always taken a liking to him.

-

"Kacchan...I like you so much."

"Is that your possessive alpha brain talking, or you, shitty nerd?"

"It's me. It's always been me."

Notes:

Hey everyone! Back again with another dkbk fic because they haunt me even when I am awake. This is my first time writing an omega verse fic, and honestly I’m worried I didn’t capture it the way I intended to. Ether way, I enjoyed trying something different! Comments are greatly appreciated! ᕦ(ò_óˇ)ᕤ

Chapter 1

Dynamite was blasting between rooftops on his afternoon patrol. The city was loud and enthusiastic. There was the usual traffic, chatter of people, his explosions sending off warnings to any dumbasses that decided to stir trouble. It was nothing new to him.

 

But without fail he would catch a sound he'd learned to pick out instantly. A sharp voice. A strained helpless cry.

 

And today it came. "L-leave me alone! Please!"

 

He halted midair with a snap of his wrists, boots skidding across a rooftop edge as he looked down. In the alley below, a man had a woman backed against a wall, one hand gripping her arm while she tried to twist away. 

 

Dynamite didn't think. He moved.

 

A single blast sent him rocketing downward. The pressure in his palms tightened with controlled fury that he'd learned to keep contained after decades of practice. 

 

He landed hard enough that dust jumped off the pavement. The sounds of his blast had already snapped the man's head toward him, eyes widened with fear when he saw Dynamite.

 

"The fucks going on?" Dynamite's voice was low, dangerous. 

 

The man stumbled at the tone, still holding the woman's wrist. Bakugou flicked his hand, a small explosion popping in his palm like a warning shot.

 

"She—she asked for help—" he stuttered out, his face flushed with an undeniable lust.

 

It wasn't long after that that the man decided this wasn't a fight he could mange. He turned to scurry out of the alley with a shout of fear.

 

Any sane person would know there was no use in that.

 

In one second a blast sent Dynamite forward, tackling the guy to the ground. In two seconds the man was cuffed, pinned. In three seconds the man was trying to spit out protests that Dynamite didn't bother listening to.

 

He didn't need to when it took four second for police to come take the bastard away. They must have noticed the commotion and sent back up, knowing how Dynamite takes care of things, they suspected he'd have someone apprehended.

 

He'd praise them later for the quick thinking, but had other things to take care of.

 

He turned back to the woman. She was on her bottom slouched to the ground, flushed and dazed and panting. It was clear by her business casual attire she was on the way home from work before the assault. 

 

He stepped closer, slow and deliberate so she wouldn't panic, and crouched in front of her. Her eyes were slammed shut, but it was clear by the shaky breath she let out that she knew he was there.

 

"Oi, you alright?" he asked gruffly, but made sure to soften his tone as best he could.

 

She hardly seemed like she was conscious, just a panting mess there along the brick, her head moving in an attempt to answer.

 

"You in heat?"

 

She nodded shakily.

 

Damn.

 

Bakugou looked away, rubbing the back of his neck. The police were dealing with the suspect, and it'd be a bit before medics came for the woman if they weren't called yet. He turned back, reaching out to grab her hand. She shivered at the contact. 

 

"You take any suppressants?" He asked.

 

"I—I did," she finally says, yet her eyes are still sealed shut, her words breathless as they leave her lips. "But the prescription I have is—ngh—no good. Not enough, and I—I don't have money for new ones right now."

 

"I'm picking you up," he mutters.

 

She finally managed to blink her eyes open at that, breaths still coming in shallow pulls. "I–I can walk—"

 

"No. You can't." His tone wasn't harsh, just firm. "You're burning up. I've got you."

 

He slid one arm under her knees and the other behind her back. The moment he lifted her, she curled instinctively into his chest. A tiny gasp escaped her, but she didn't fight it. She clung to the front of his hero gear like he was the only cool surface in a world too hot. Which hardly made sense considering his quirk.

 

"I know a clinic that handles emergency heats," he said. "I'll get you there. No one's touching you again."

 

She leaned lightly into him. She was so trusting even after everything she'd been through. He gave her props for that

 

"Are you an alpha?" she asked softly, her hot hand splayed over his chest. He didn't mind the touch, too focused on getting her help. 

 

"Beta," he answers. "Means your shitty pheromones have no effect on me. Now relax already."

 

She tried, pressing her forehead lightly against the side of his neck. His scent, she inhaled. It was like warm smoke, caramel, something that she'd only dreamed of in an alpha, yet it came from a beta. Hardly made sense, her mind a mess, but even then it seemed to stabilize her heat just a little.

 

As much as Dynamite hated to admit it, this kind of thing was what betas did best. Being the balance of a world full of social unjust. As much as he'd rather be blowing shit up, this was just as important, if not, more so.

 

Dynamite adjusted his grip, cradling her closer so she wouldn't jostle. He kept his steps slow and controlled as he left the alley.

 

"Sorry for the trouble," she whimpered. She sounded almost as if she were crying, and it didn't take long for tears to actually start forming.

 

The fear she had felt must be overwhelming her now, even stronger then that overarching heat that continued to cast through her system like a curse.

 

"I'm a hero," he murmured, surprising even himself with the softness in his voice. "I wouldn't have a job if you extras didn't give me trouble."

 

"Yer a funny guy, heh," she giggled weakly, fingers curling into the fabric at his shoulder.

 

It didn't take long for her to finally drift off into a slumber against his chest.

 

—

 

"Big Bro!" Kota skidded to a stop in front of his desk, tablet clutched in both hands. "Did you see what Dynamight just did?! It's all over the news!"

 

Izuku blinked, smiling automatically at the endearing nickname that Kota couldn't break the habit of calling him even when they were at school.

 

"Dynamight? Oh—uh, no, not yet. Did he take down someone big?"

 

"No, not really," he said. He went to shove the tablet toward him. "He saved an omega from a creep! Carried her to safety after."

 

Izuku's smile froze. His hand hovered over the tablet.

 

"Carried her?" he repeated, voice soft.

 

"Yeah!" Kota beamed. He tapped the screen. The footage began to play.

 

Izuku didn't notice the soft hum of other students gathering at the door. He didn't notice Kota excitedly narrating every moment.

 

All he saw was Kacchan.

 

Kacchan, descending from an alley like a controlled explosion.

 

Kacchan, carrying an omega like it was instinct. 

 

Kacchan, letting her nuzzle weakly into his neck for comfort.

 

Kacchan, holding her so close she could probably feel every breath he took.

 

Izuku's heartbeat thudded hard. Way too hard. For someone who was supposed to be keeping his instincts in check, he had to force himself to breathe in order to the keep the sharp scent rolling beneath his skin from coming out.

 

Kota didn't notice. He was still babbling.

 

"Dynamite sure is amazing. Even with being a beta, he doesn't let that stop him from being the best!"

 

Izuku's jaw twitched.

 

Kacchan never let people close like that. Didn't let people cling to him. Didn't let people touch him.

 

Yet here he was on the screen, holding an omega like she belonged in his arms.

 

Izuku swallowed, throat dry.

 

"That's... good," he managed, voice calm but tight. "I'm glad he saved her."

 

He gently handed the tablet back to him, his hand reaching to grab his pen. He had to stop himself from squeezing it so hard that the ink would burst out of it.

 

"Thank you, Kota. I appreciate you showing me." He smiled, even as something inside him coiled tight. "Alright, everyone. Head back to your homeroom. I'll see you all tomorrow."

 

The students dispersed. They were chatting excitedly about the video, some girls giggling at how handsome he was, some boys soaring about his manliness.

 

Izuku closed the classroom door behind them and the room grew quiet. Finally he let his expression change.

 

His hands pressed against the desk, knuckles paling. His alpha instincts surged hot in his chest, a low, possessive rumble trapped behind clenched teeth.

 

He inhaled sharply.

 

He needed to see Kacchan.

 

To make sure he was okay.

 

To make sure that scent wasn't still on him.

 

To make sure his instincts understood—

Kacchan was his.

 

Izuku gasped, shaking his head.

 

"Stop it, Izuku. He's not...yours. He's not. You're childhood friends, classmates, good pals. That's it. That's..."

 

Izuku straightened up, blinked, and stepped out of the classroom with quiet urgency.

 

—

 

Kacchan was fresh out of the shower, a towel pulling through his wet hair, already in his sleep clothes for the night. The news of his save today was broadcasted on his tv, and he snarled at the romantic tell of the rescue.

 

Beta hero Great Explosion Murder God Dynamite yet again shows his kindness to the people of Japan—

 

He stopped listening when three firm thuds came to his apartment door. Urgent. Too controlled to be panicked, too sharp to be polite.

 

He froze, towel slung around his neck, hair still dripping.

 

Katsuki padded to the door. He opened it.

 

"The hell you doing here, nerd?"

 

Izuku didn't wait. He stepped inside, closing the door behind him with a soft click. His eyes were locked on Katsuki. Green and wrongly intense. 

 

It was obvious by his outfit that he'd come straight from UA. A tight white dress shirt clung to broad shoulders, black slacks did nothing to hide strong and firm thighs. Not to forget, that stupid ass red tie.

 

"I...I don't know," Izuku blabbered.

 

Katsuki's brows pulled together. "Huh? What do you mean you don't know?"

 

"I saw the news," Izuku completely ignored him. "You did good work today, saving that omega."

 

"I know. What's your point?"

 

Izuku moved closer.

 

Not fast. Nor was it aggressive. It was just extremely deliberate, like every step was a strain against Izuku's body, as if he were fighting against something.

 

"It...I was proud of you," Izuku said softly.

 

Katsuki blinked. "Deku."

 

"But I was so...upset," he said, stepping closer again. "She was clinging to you, Kacchan."

 

"Deku, what the hell are you going on about right now?" Katsuki's breath hitched. Izuku was here, close enough that Katsuki couldn't ignore that darkness beholding green eyes.

 

Izuku exhaled shakily. "She was burying her face in your neck."

 

Katsuki felt heat crawl up his back like an insect was under his shirt. "She was in heat, Deku. The hell was she supposed to do?"

 

"That's not all." Izuku's voice dipped. "She touched you."

 

Katsuki opened his mouth and closed it again. It was undeniable what was going on here. The way Izuku looked so repressed within his own skin, his body shaking, his face red, his eyes still so dark and casted compared to that usual brightness that used to drive Katsuki crazy.

 

The alpha part of him was in control. Something he never saw from Izuku. This was the first time. And without Katsuki's permission, his mind reacted to that, his body following close second as it pinned itself to his own counter. 

 

Izuku lifted a hand but didn't touch him. Not yet. Katsuki watched as scarred fingers trembled beside his cheek.

 

"I came to make sure," he murmured, eyes tracing Katsuki's face with disbelief and hunger. "That she didn't leave her scent on you."

 

Katsuki shivered. "I don't know if she did."

 

Izuku stepped close enough that their chests almost brushed. "I needed to check."

 

Katsuki's throat worked around a swallow. "You could've called."

 

"I didn't want to call. I needed to know."

 

His voice was soft, but the force behind it made Katsuki's heart lurch in his chest.

 

Izuku finally touched him. His fingers brushed under Katsukis eye where that scar remained. That, for some reason, snapped him out of it.

 

"Huh? What am I—Kacchan! I'm so sorry," he backed away with a gasp, his hands reaching up to grasp at the material of his dress shirt. "Just now I was...I was being possessive, wasn't I? I'm sorry. I don't know what came over me. That's never happened before. I'd heard Alphas being over bearing when it comes to thing they view as theirs, but I never thought that it would happen to me. I guess maybe I had just never thought about it before since seeing Kacchan with someone else—"

 

"Shudduppppppp," Katsuki grumbled, his body forgetting all about the weird heat he felt before, and soon succumbing to rage. 

 

He reached forward and grabbed that stupid red tie and used the leverage to spin them around. Now he was pinning Izuku to the counter, the greenette shielding his face to hide his shame.

 

Like this, Katsuki loomed over the other, reminding them that even after all this time, even after presenting the nerd presented as an alpha, he was still just a tad bit taller.

 

"Ah! Sorry! Really," Izuku continued to blabber, no doubt embarrassed from the awful flush filling into his face and neck. 

 

"What's wrong with you? I'm a beta, remember?" He wondered, the episode of crazy alpha Izuku from moments ago was not to be forgotten even after the many pathetic apologies that continued to spill from the teachers mouth.

 

"I don't think it matters in this case, Kacchan," Izuku's eyes softened. He couldn't ignore the possessive edge that refused to fade from them.

 

"So what, you being all alpha crazy possessive over a beta is normal?" 

 

Izuku whined. "Kacchan—"

 

"No." Katsuki stepped back, which Izuku was thankful for considering everything about Katsuki was clouding his judgement at the moments. 

 

Actually, he clouded his judgment always.

 

The blonde pointed at him with a stern finger, and Izuku watched as the towel on his shoulders slid off and onto the ground. 

 

"Don't 'Kacchan' me, you bastard. You barged into my damn apartment like you were about to drag me off somewhere. You're vibrating like your shitty alpha instincts are trying to chew their way out of you."

 

"I know!" Izuku groaned, dragging his hands down his face. "I shouldn't have barged in. I shouldn't have let my instincts flare like that. But the moment I saw her in your arms, everything in me—everything—lit up and said that you were mine."

 

Silence dropped between them like a weight.

 

Katsuki felt it settle in his chest. This hot, unbearable pressure that built up the longer he looked at that stupid freckled face. 

 

He stepped closer again, tilting his head just a bit to catch Izuku's eyes.

 

"You've never done that before," he reminded, Izuku shunning his eyes away, his lips pulling in a pout. "You've never acted like an alpha around me."

 

Izuku couldn't bring himself to look at Katsuki’s expression.

 

What if the blond was disgusted by him? He hated any talk about alphas and omegas, hated that the world saw stupid gender as a reason for being superior when it took a lot more to be the best of the best. Katsuki was a prime example of hard work and dedication, even when his childhood friend that he used to bully turned out to show alpha traits, it never stopped him from being better out of sheer spite.

 

"Do you...do you like me or something?" Katsuki asked, voice dropping. "Or are you just obsessed with me?"

 

Izuku nodded like a fool there against the counter, his mind too jumbled to hide his feelings anymore.

 

Katsuki's breath hitched. "Which is it, nerd?"

 

"That I like you," Izuku said, quiet but unwavering. "But that I'm also so obsessed with you." 

 

Katsuki's heart thudded hard enough he felt it in his teeth. His palms flared, his body surely sparkling with his quirk from an emotion he knew all to well.

 

Excitement.

 

Without another word, Katsuki was grabbing that god forsaken tie once more and dipped down so he could press their lips together.

 

The first contact was soft. So soft Izuku didn't even realize he'd gasped until Katsuki's other hand cupped the back of his neck, steadying him. 

 

Izuku kissed him back slowly like he'd imagined a thousand times before this moment. His hand reached up and cuffed a hot cheek, still not fully comprehending that he was touching Kacchan. His thumb stroked the sharp jagged skin of Katsuki's scar.

 

Katsuki made a sound that was low and raw, somewhere between a growl and a whimper. Izuku swallowed it with another kiss, deeper this time, their mouths fitting together like they'd been waiting for this moment without saying it aloud.

 

Katsuki broke the kiss with a gasp when their fronts bumped together, a heat he'd never felt before seeping into his skin. For being a beta that had zero gender instincts, he sure as hell felt like he was on the verge of losing his mind just from a kiss.

 

"Sorry. Too fast," Izuku quickly uttered when he pressed their foreheads together, watching carefully as Katsuki continued to gasp for his breath.

 

"Stop fucking apologizing. It's getting annoying," he hissed.

 

Izuku seals his lips when another apology threatens to fall out, Katsuki scoffing in disbelief.

 

"Idiot."

 

"Kacchan," he whispered. "I like you so much."

 

His cheeks burned bright red, but he didn't let go of Izuku's tie. Didn't step back. Didn't hide. "Is that your possessive alpha brain talking, or you, shitty nerd?"

 

"It's me. It's always been me," he promised.

 

Katsuki chuckled, his eyes never leaving Izuku's lips.

 

"That's what I thought."

Chapter 2

Summary:

An alpha scent marking a beta. Who would have thought?

Notes:

I wrote this chapter on the five hour long bus ride to my college basketball game, and let me tell ya, I cooked up. Romance, passion, obsession, and beautiful smut. This chapter is quite long, so sit back and relax. （╹◡╹）

The classroom was buzzing with glee as Izuku beamed a happy smile to the students.

 

"Good job with your exams, everyone. I see the study groups you formed before the hero history test did well! Everybody passed!" He exclaimed.

 

"Are you going to throw us a party, Deku Sensei?"

 

It wasn't long after that that the door slammed open. The room was hit with the sharp scent of smoke and the gleam of polished gear. Izuku's eyes found that smell and couldn't look away from black and organge armor panels, the heavy boots that thudded against the floor, a mask resting around a pale neck.

 

Dynamites red eyes twitched. Izuku's nose fluttered. Everything that happened the previous night suddenly came back to him in a big cloud of smoke, and with the hero standing right in front him, it further added to his insanity.

 

"Like hell he's throwing you brats a party," Dynamite said, voice rough but annoyingly casual, as if he didn't just burst into the classroom with no warning.

 

Everyone shot up with cheers.

 

"It's Dynamite! He's back!" The students clambered. Excitement rose in the air. They were more happy about seeing the hero then they were about passing their exams.

 

Deku blinked, heat rising to his cheeks. "Kac—Dynamite! What are you doing here!"

 

Bakugou finally glanced to the students who fidgeted at their desk. He was scowling, but nobody felt threatened. "Here to warn these little bastards to be respectful to their Sensei."

 

"Yeah right!" One student points his finger directly at Dynamite with a pout. "Yer just here to hog Deku Sensei again!" 

Izuku has to cover his mouth to stifle the laugh that threatened to come out. It was quickly replaced with a gasp of embarrassment when Dynamite didn't seem to deny the accusation.

 

"Tch." He looked away, jaw tight. "And what about it?"

 

 

Eventually the students took their leave for the day, leaving Dynamite and Izuku alone. 

Izuku was packing up his notes into his brief case. Dynamite was sitting in his office chair, perhaps taking in the feeling of sitting in the alphas throne, further realizing it didn't bother the greenette in the slightest. His arms were crossed over tuff leather, his legs spread.

"It's been awhile since you came to UA," Izuku breathed, trying not to lose his mind over that smell that continued to waft off of Katsuki like a caramel candy coffin.

 

"Just felt like it," he answered, voice low but steady.

 

"I see," was all he was able to muster. 

 

His hands shook like a ball of nerves as he nestled the rest of the papers away, reaching for his All Might pen to join the stack inside the brief case. Like a fool, it slipped out of his hand and made a clacking sound to the floor. 

 

Shoot, why am I freaking out? It's just Kacchan. But I...

 

He heard the sound of the chair creak as he bent over, indicating that Katsuki was standing up. He felt that grueling presence behind him, his mind stuttering to hide the lustful thoughts pooling into his frontal lobe. 

 

As he quickly shot up from the floor, his throat bobbing in an evident gulp, he turned with his All Might pen in hand to face Katsuki. 

 

But before he could do anything remotely close to breathing, Katsuki was leaning one hand against the desk beside Izuku to pin him there, armor creaking softly as he lowered his head just enough that his bangs shadowed his crimson eyes. The All Might pen slipped from his grip once more. Neither of them moved to pick it up as it skidded under the desk.

 

So close. Close enough that Izuku could see soot smudged along Katsuki's cheek, right beside the scar under his eye. 

 

Izuku wanted to whine when that potent smell of burnt sweetness was suffocating his every sense. His body tingled, the alpha in his head shouting at him to move, to take. 

 

When Katsuki tilted his head with a snarl, that soft pale neck exposed, he about lost all his wits. 

 

"The hell you acting so awkward for?" Katsuki asked, cutting through Izuku's mind of unwavering instincts. 

 

The blonde wasn't angry, just...confused. Izuku could recognize that, but even then, being so close...he put his scarred hands to his face, his eyes struggling to hold those stubborn red orbs for too long. 

 

"I can't help it! Last night we—and you smell so...also, you in that uniform is really, really—" he blabbered, but Katsuki quickly reached up with a gloved hand and silenced the rest of what he was going to say.

 

Izuku responded with a grateful sigh. Except, with that hand being directly under his nose, he almost passed out from how strong the smell was here. 

 

"Alright, enough, you freak," Katsuki hissed.

 

Izuku was seeing stars, warm muscle touching him in so many places. He felt like fireworks were going off behind his eyes. His alpha instincts stirred uncontrollably, and they uncoiled before he could clamp down on them. His heartbeat kicked up, breath coming a little quicker than he meant.

 

Bakugou noticed immediately. Of course he did. His fingers unintentionally curl around Izuku's face.

 

"The hell's with that look?" he muttered, but the rough edge in his voice softened.

 

Izuku didn't answer.

 

He reached up and snagged at Katsuki's wrist, while his other hand slithered around his torso to press him closer.

 

"What are you—ugh!" Katsuki grunted, but had no time to react when Izuku tucked his nose deeper into his palm.

 

Izuku inhaled.

 

Once.

 

Twice.

 

He couldn't stop himself.

 

Bakugou froze completely.

 

"Oi, Deku. What are you—"

 

"You smell... really good," Izuku whispered, voice muffled against the leather material of his glove. "Kacchan..."

 

Katsuki's other hand hovered awkwardly at his side, clenching and unclenching every time he heard Izuku let out a pathetic whine.

 

He shivered. Why did this alpha melting into his palm like a love sick puppy not piss him off? He was a beta for god sake. This should disgust him, make him uncomfortable. 

 

But when those green eyes fluttered open with a foggy possession lingering in dilated pupils, Katsuki felt his body jump. 

 

Izuku only held him tighter, as if his alpha was acknowledging that. His nose began brushing over the warm skin at Katsuki's wrist, then up his forearm, through his bicep. The smell was strong here too near his armpit where he must sweat more, and with a moan he breathes in the leathery sweetness there. 

 

Katsuki gasped. "Are you fucking smelling my armpit?"

 

"Sorry," Izuku said dryly, not fully meaning it but still feeling it was necessary. "Can't help myself."

 

He continued up and up, his nose now nuzzled deep into the crivice of Katsuki's neck. His other hand found Katsuki's waist and he curled his fingers into the side of orange and black armor, gentle but desperate when he had to keep everything within himself from biting the skin on the beta's throat.

 

For a long moment, Katsuki didn't do anything. It worried Izuku, even with his mind clouded, that maybe the beta really was put off by him, and after this he would tell Izuku off and remind him how much he hated alphas and omegas and their stupid instincts. 

 

But he didn't do that. Slowly, carefully, Katsuki wrapped his arms around Izuku's shoulders, pulling him closer, letting Izuku breathe him in as much as he needed.

 

His alpha instincts were running hot beneath his skin now that he knew Katsuki had accepted him. It was all smoothing out his usual nervousness into something so purposeful. 

 

Izuku's nose brushed along the warm skin where Bakugou's jaw met his neck again. Bakugou sucked in a sharp breath, spine going rigid.

 

A soft, instinctual drag of his nose along Katsuki skin, followed by a warm exhale that sent shivers rippling down Katsuki's back. It felt different from the previous times the nerd touched him there. It was very much intentional.

 

"Oi, sensei," the blonde hushed, the arms around Izuku's shoulders staying there. "Are you doing some weird alpha marking shit right now?"

 

"Yeah," Izuku murmured against him. "Sorry."

 

"Whatever. It's no use. I'm a beta, remember? That shit doesn't affect me," he grumbles, gasping when strong arms wrap fully around his waist as if trying to pull him in. 

 

It dawned on Katsuki then, just how close they were. Every part of the front of their bodies touched. Heat began to spike in places they shouldn't be, especially not when they were still in Izuku's classroom of all places.

 

"I like that we aren't tied together because of pheromones. It feels...natural this way," Izuku admitted shyly, his face never leaving the crevice under that strong jaw.

 

"Yer such a damn nerd," Katsuki uttered.

 

Izuku lifted his head.

 

Dynamite froze as soon as he saw those eyes, that heavy scar tugging there at the skin of his once freckled cheek. Bright green, warm, pupils still wide, but steady. They were focused on him and only him. Something in Katsuki's chest clenched at that realization.

 

"Kiss me. Please?" Izuku whispered. 

 

Katsuki tried to scoff, but it came out shaky.

 

Their lips brushed without another second passing of Izuku's pleas. It was just a soft, tentative press at first, barely even there. Izuku's breath trembled, and Katsuki swore he could feel every bit of it against his mouth. Against his body where they held each other as close as they could mange.

 

Then Katsuki moved. It was just enough to deepen it, show Izuku that yeah, I can claim you too, you alpha bastard. 

 

Izuku's hand slid up to the expanse of Katsuki's back, his fingers pressing intentionally at the sore muscles there. Katsuki groaned and tightened his arms around the other's head, making sure the nerd couldn't escape him.

 

Not like he wanted to, anyway, by the way he lifted his hips forward off of the desk he was pinned too, pressing their front together in a hot zip of short fused pleasure.

 

Katsuki pulled back a fraction. He was barely an inch away, breathing softly against Izuku's lips.

 

"Deku."

 

"Hah, right," Izuku sighed, his eyes fluttering open with a tired wave of exhaustion. Being in Katsuki's grasp made him sleepy, he realized. "I forgot where we were for a second."

 

"Don't apologize," Katsuki grumbled. He shifted back enough to make sure Izuku knew he wasn't uncomfortable with this still. "It was...good. You're surprisingly good at kissing, which shouldn't piss me off. But it does. 

 

Izuku chuckled weakly. "Is Kacchan jealous of me kissing other people?"

 

The blond rolled his crimson eyes and finally pulled away. He hated how his body immediately missed the pressure of Izuku's touch, forcing himself to head toward the door instead of coward into the alpha bastards arms again.

 

"Don't push it, nerd," he cursed. 

 

Izuku fixed his shirt and tie, frazzled his hair, adjusted his crotch and grabbed up pen from under his desk that had been pleading to be picked up this entire time. He stuffed it into the brief case. 

 

"I'm going to my parents tonight to pick up side dishes. Come with," Katsuki demanded as Izuku pattered to the door with a tap of dress shoes. Much different compared to the heavy stomps of Dynamites boots.

 

"O-oh, okay. But uh—are you gonna stay in your uniform?"

 

"Fuck."

 

—

 

After leaving from the agency, Katsuki back casual clothes, they finally made it to their neighborhood.

 

Katsuki didn't bother knocking when he got to his parents place, he just busted into the house, Izuku scolding him with a whine from behind at the intrusion. It didn't take long for his mom to round the corner.

 

"Oh, finally!" She said bashful. "And Izuku's here too! Good, you can take some food home as well! I made too damn much!"

 

Katsuki grimaced. "Ma. We literally just walked in."

 

Mitsuki ignored him entirely. "Get inside before the neighbors think I'm yelling at children again."

 

"You are yelling," Katsuki muttered.

 

"Hush. Shoes off. Izuku, sweetie, come in. Oh my, don't you look so handsome in your teacher attire. Bet all the omegas dig it," she winks.

 

"MOM!" Katsuki exploded, going bright red.

 

Izuku choked on air, face flaming. Mitsuki raised an eyebrow, but Katsuki shoved past her toward the kitchen, completely ignoring it.

 

"We're here for the damn food! You gonna give it or not?"

 

The kitchen smelled incredible, he hated to admit. Her cooking always did. A whole counter was covered in neatly packed containers. There was seasoned vegetables, simmered lotus root, sweet rolled omelets, spicy pickled cucumbers, marinated fish. It was way more than two people could reasonably carry.

 

Izuku's eyes widened. "Auntie, you made all of this today?"

 

"Mmhm," she said, waving a hand proudly. "Got on a roll. Happens. And with Katsuki's father being on a business trip I can't help but be a bit bored."

 

Katsuki opened a container, sniffed it, and scoffed. "Damn. This one smells good."

 

Mitsuki swatted at his hand. "Save it for later! And if you eat all the spicy ones before poor Izuku gets any, I swear I'll smack you."

 

"I never—!" Katsuki started, but Izuku laughed, patting his arm.

 

"It's okay. I like the spicy ones too."

 

Katsuki's eyes flickered to him. The damn alpha bastard. Looked so stupid and adorable and considerate.

 

Shit. Fuck. 

 

Mitsuki watched the two of them like she was admiring her cooking or something. 

 

"You boys been spending more time together these days?" she asked casually.

 

Katsuki froze. Izuku did too.

 

Izuku spoke first, shockingly. "We do. Kacchan comes around UA to see my students pretty often."

 

Katsuki shot him a look. It was one that was supposed to be annoyed, but the corners of his mouth twitched up. This fucker was lying. And he wasn't that shitty at it.

 

Mitsuki clapped her hands together. "Isn't that just wonderful. You boys were attached at the hip as kids, even if Katsuki was a little shithead at that age."

 

"Enoughhhhhh," Katsuki grumbled.

 

They organized the side dishes in two even stacks for both of them to carry, then Mitsuki took two of her floral bento covers and tied them up. Katsuki watched, Izuku as well. It was a bit mesmerizing how good she was at doing it.

 

"You've been coming onto that hero channel every day now," Mitsuki said as she slide the sides across the counter. 

 

"I told you to stop watching that. It's stupid," he retorted. He handed Izuku a stack. 

 

"You're always in it, though! I can't miss that," she spat, smacking at his head when he shot her a glare.

 

"I watch that channel too!" Izuku chimed.

 

"Of course you do! Let's fucking go already, you shitty alpha."

 

Izuku whined.

 

The greenette pattered over to the door with side dishes in hand, going to reach for his shoes and slip them back on. Katsuki was hardly able to step out of the kitchen before Mitsuki snatched him by the collar of his shirt.

 

"The fuck!" He clambered, almost spilling the side dishes all over the floor.

 

"You should really tell him to lay off the scent marking," she smirked.

 

Katsuki couldn't even mutter a curse before Mitsuki was shoving him toward the door.

 

"Izuku, why don't you bring your mother over this weekend for lunch. Surely you'll drag Katsuki as well. He hardly leaves the house on weekends," she exclaimed.

 

Izuku turned around, his shoes on and his posture stiff, side dishes in one arm and his briefcase in the other. He was clearly waiting patiently for the Bakugou's to finish their conversation.

 

"Ah, actually, this weekend we plan to have a function with a few of our classmates," he beamed.

 

"Hm, oh well. You boys be safe out there. Katsuki, you better return my dishes."

 

"I will. Bye," Katsuki said half way out the door.

 

"Goodbye, I love you."

 

"Love you too."

 

 

Katsuki huffed when they made it onto the side walk, his nerves shot completely from his mother. That damned hag, always knowing everything. It didn’t help she was an omega and could probably easily sense the pheromones that were probably clinging to him like a sign saying This beta is taken.

 

"You okay, Kacchan?" Izuku asked.

 

Which of course he would, as Katsuki was doing nothing to hide his troubles on his face. The blonde just settled for a nod, holding the side dishes tighter into his side.

 

"What's this talk about seeing the extras this weekend?" He grumbled, changing the subject entirely.

 

Izuku laughed. "Sorry, I was so busy making out with you earlier I completely forgot to bring it up."

 

"Don't blame me!" Katsuki groaned immediately.

 

"Ochaco texted me about getting everyone together at your place. At least, everyone whose able to come," Izuku averted. 

 

Katsuki kicked a rock and hissed when it skidded too far off from the sidewalk, getting left behind as they continued on.

 

"Why didn't she text me?" He asked. 

 

"Cause you never answer your phone."

 

"I answer when it's you," he admitted. 

 

Izuku flushed with a child like chuckle that shouldn't have made Katsuki's heart throb as much as it did. 

 

Stupid alpha.

 

"Well, that's nice, but point proven," Izuku said behind a bashful smile.

 

Katsuki cleared his throat, ears turning bright red. "Tch, whatever." 

 

"I know everyone usually plans to throw parties at your place, but we don't have to, if you don't want to," Izuku reassured. The sound of concern was evident in his voice. Katsuki rolled his eyes.

 

"It's fine. Didn't have shit planned this weekend anyway," Katsuki insisted, shoving his free hand into his pocket. "It's just those extras are probably gonna ask a million questions."

 

Izuku furrowed a brow. "About what?"

 

"About us? What else?" Katsuki shifted his weight, jaw tightening.

 

Was he the only one thinking about that? Or was everything until now just becuase of Izuku's alpha bullshit? 

 

Damn, he was starting to overthink, feeling pathetic when he clicked his teeth together in annoyance. Izuku stepped a little closer so their shoulders touched, which shouldn't have been as reassuring as it was, but Katsuki couldn't exactly help how his body softened up a bit, his heart steadying.

 

What was he, some feeble omega? 

 

"Kacchan?" Izuku muttered in that stupidly gentle voice.

 

"What?" Katsuki knew big green eyes were staring at him. He didn't have to look over to figure that out. Could practically feel it in the way his body tingled. 

 

"Are we...a thing?"

 

Katsuki couldn't help but scoff. "A thing?"

 

"Dating."

 

He couldn't contain the sudden explosion that burst from his palm, both of the men halting in their tracks.

 

"I don't fucking know! Yer stupid alpha ass never asked me shit, you just scented me!" He shouted, everything on his face screaming rage, but Izuku knew that wasn't it.

 

Confusion. Worry. Fear.

 

He smiled. Stopping beside Katsuki, he tilted his head, looking at the blonde as if he were the most spectacular thing in the world. For a moment Katsuki saw that stupid little kid who used to admire him and chase him around the neighborhood, which only helped the strings tugging along at his heart, pulling harder.

 

"Can I be your boyfriend, Kacchan?" He asked. 

 

"Yeah," Katsuki answered immediately, voice low and a little gruff.

 

Shy. Embarrassed. Whatever.

 

"Really?" Izuku beamed. Katsuki snarled at him. 

"Yes, are you deaf? Think I just say stupid crap for shits and giggles?" Katsuki added a moment later, still gruff.

 

Izuku became just that as they continued the walk back to Katsuki’s apartment. Shits and giggles. He was acting like a teenager who finally got his crush to date him.

 

Wait. 

 

"Let's get some beer from the connivence store to go with the side dishes," Izuku suggested, a little more pep in his step then Katsuki remembered.

 

He couldn't help the smile that tugged at his lips as he watched him. "Fuckin hate beer. Wine."

 

"Right. Wine. I hate beer too."

 

—

 

"This is cheap ass wine," Katsuki complained with the glass to his lips.

 

Izuku laughed as he sank down onto the floor beside the blonde, leaning his back against the base of the couch with his own glass in hand.

 

"Sorry. It's all they had," he said.

 

"'s fine."

 

Katsuki took a long sip, exhaled, and tilted his head back against the couch. Izuku watched him over the rim of his glass, cheeks already warming from more than just the alcohol.

 

He remembered the moment in his classroom today. How natural it had felt to scent Katsuki. He'd never felt himself succumb to his desires so easily before. Any other case he would think he were crazy, a fool for letting himself be out of control.

 

But Katsuki made him feel so sure of himself. If anyone could handle the crazy world of gender instincts, it would be Dynamite.

 

Already feeling a bit fuzzy from the one glass, Izuku nudged at Katsuki endearingly.

 

"We didn't really talk about how this relationship will go," he began, smacking his lips together when the dryness of the wine made it hard for him to speak. Or maybe he was already tipsy. Who knows. "I suppose I just want to make sure you're okay with everything."

 

Katsuki turned his head, eyes sliding toward Izuku with a slow, slightly hazy focus. "Why wouldn't I be?" 

 

"I don't know. You being a beta and Japans number 4 pro hero, me being an alpha and a teacher at UA. People will talk. And the media—"

 

Katsuki reached over with his free hand and squeezed Izuku's cheek. His crimson eyes vibrated with pride. With want.

 

"Who gives a shit about gender and what those extras think? You like me or not?" He  

 

Izuku shifted, inching just a bit closer until his arm slid behind Katsuki and they pressed together. Katsuki didn't move away. If anything, he leaned in, letting the weight of their shoulders lock them together. The hand on Izuku's face glided down to rest on the greenette's lap, said greenette doing everything in his power to not acknowledge its presence.

 

That was impossible, he would soon realize.

 

"I do," Izuku confessed.

 

"Okay then," Katsuki deadpanned, taking a lengthy sip from his glass.

 

Izuku couldn't take his eyes off him. He traced over the scar on Katsuki's cheek, the flush of his face, the stoic point of his nose. Then to those lips that grew more and more rosey every time he put his lips to that wine glass.

 

"And you like me?" Izuku asked, feeling bold.

 

Katsuki froze for a breath, then lifted his glass again this time with a tiny, embarrassed huff. "I let you put your mouth on mine, and you have the nerve to ask me that?" 

 

Izuku whined and nuzzled his nose into Katsuki's temple, huffing in that sweet Sm scent once more. Even after a shower and using shampoo, that caramel coffin never ceased to burry Izuku deeper and deeper.

 

"I just wanna hear you say it Kacchan. Please?" He pleaded softly. The arm around Katsuki's back squeezed with the question.

 

"Such a whiner," Katsuki shied. "I...I like you. Jeez."

 

"How much?" Izuku asked, voice teasing.

 

Katsuki hissed. "Shuddup, you nerd."

 

Izuku smiled into his glass, heart fluttering. He took one more sip before discarding it onto the coffee table in front of them. Katsuki watched the movement, watched the rise and fall of Izukus chest, watched the way the dim light caught in green eyes. That's right. Izuku was looking at him, now. He set his own glass down on the table too, sensing a change in the air.

 

"Can I kiss you?" Izuku whispered.

 

Katsuki leaned in and kissed him.

 

Their lips met like they had been separated for far too long. Izuku's hand rose instinctively to Katsuki's cheek, thumb brushing the warm skin there. Katsuki inhaled sharply at the touch and then the kiss deepened, slow but hungry, like he'd been holding this in for years. 

 

Except, they had been holding this in for years. 

 

Izuku tilted his head, lips parting slightly to welcome Katsuki in as their tongues slide together. Katsuki's breath hitched. 

 

The hand in Izuku's lap clenched instinctively, and just like that Izuku was curling against him with a pant. Katsuki groaned at the sound, wanting to hear more. Izuku pulled back, but Katsuki pushed forward, not allowing him any chance to breathe.

 

Katsuki took the opportunity to squeeze his hand again, Izuku jumping. The feeling of something filling out between his fingers made the blondes belly tingle. His own cock began to swell there in his shorts.

 

"Kacchan. Yer hand—it's—" Izuku hushed, his breath nothing more then a pathetic whine when Katsuki pressed at the head of his dick through the fabric. 

 

This all seemed not real. Not real at all.

 

"Don't like it?" Katsuki asked, nibbling at Izuku's jaw when the man gasped into the air.

 

"Never said that," he hissed. 

 

"Then shuddup and get your alpha dick hard for me."

 

"Oh...god."

 

It didn't take much. He was filled out completely in the matter of minutes, making a complete mess of his shorts where his tip began to weep with pre. Katsuki suckled at his jaw, humming softly when the scarred hand on his back slid under his shirt and pet at his spine.  

 

"Fuck, Deku. I can feel how huge you are. Are all alpha dicks this big?" 

 

"Don't know. Does it matter?" He asked. Katsuki couldn't miss the irritation in his voice, smirking against his cheek when he pressed his palm down. Izuku whimpered.

 

"Guess it doesn't. Yer stupid cocks the only one that interest me anyway," he admitted.

 

It didn't take long for Izuku to get impatient as that deadly hand continued to work at him through cotton, not enough to get him to where he wanted to be, but enough to be impossible to ignore.

 

"Sit on my lap," Izuku demanded. He was already sliding his arm fully around Katsuki's waist before the man could protest, lifting him up and sitting him on his cock. 

 

"Damn bossy," Katsuki hushed, not complaining any longer when Izuku took his ability to talk with a hungry kiss. 

 

Up this close, with Katsuki's chest pressed against his and fingers gripping tightly at green curls, that smell was stronger...richer...almost intoxicating.

 

It curled around Izuku like a soaring wave of heat.

 

Izuku let out a soft, helpless sound against Katsuki's mouth that he couldn't keep contained nor did he want to. His fingers slid underneath Katuski's shirt and up the tense and hot muscle along his back. 

 

The scent of him was too much, too good, too Kacchan. Izuku moaned.

 

"The hell was that?" Katsuki whispered, breath brushing Izuku's lips.

 

Izuku's cheeks burned in embarrassment. "Your scent—it's just—you smell so good."

 

Katsuki blinked. The faintest, slowest smirk tugged at one corner of his mouth. "You always say that. But I don't get it, I don't have pheromones."

 

Izuku shook his head, breath shaky. "It's just...you. Not pheromones. It's warm. And it— it makes it hard to think."

 

Katsuki leaned in until their noses brushed, his voice low and rough. "Yeah?"

 

He kissed Izuku again, deeper this time, and the scent rolled over Izuku in a wave. God, heat and spice and something grounding. Izuku's entire body was reacting. His pulse was quickening, his fingers were clasping, his breath catching as Katsuki swallowed every single one that managed to escape. 

 

It encouraged the blonde to grind his ass down, letting out his own huff of pleasure when his hard member brushed against Izuku's stomach.

 

"Kacchan..." Izuku whispered against his lips, dizzy with it. "You're driving me crazy."

 

Katsuki's hand slid from Izuku's hair to his neck.

 

"Good," Katsuki murmured, lips brushing Izuku's jaw before returning to his mouth. "Then you know how I feel. I can't sense your pheromones, and yet I can't fucking control myself around you. So annoying."

 

Izuku's heart stumbled. His knees felt weak even though he was sitting. That was something that only Katsuki could mange to do to him, he was sure of that.

 

The kiss melted into something slow and consuming. It was the kind of kiss that left Izuku gripping Katsuki's shirt. Katsuki took that as his cue to pull it off. 

 

Katsuki's eyes darkened, heat flickering through the red as he tossed his shirt aside in the living room, somewhere neither of them would bother to remember until they tripped over it later.

 

With Katsuki shirtless and his scent still curling through his blood like a fire he couldn't resist, he reached forward and touched at the large scar over the blonds chest. Then the jagged texture of his right arm. Deep grueling memories pulled there in the heat of tuff skin. Izuku swallowed thickly.

 

"Yer scars..." he hushed.

 

"Pretty badass, huh?" Katsuki said, pulling Izuku back to the present. Those hot, deadly hands found green hair at the nape of Izuku's neck and tugged, sensing that he wasn't the center of attention. 

 

The greenette smiled, giving into the blondes needs with zero hesitation. "Yeah. Yeah, they're so cool. You're amazing."

 

They returned to their pace, closer and hotter, heart pounding in lust as their bodies bumped to chase their own pleasure. 

 

Izuku's hands continued petting over the expanse of Katsuki's back and the hero grunted out a curse. Those scars caught at his muscle, sending shockwaves of sensation through his limbs and straight down to his dick.

 

"Yer hands are so damn rough," he grumbled, his teeth nipping at kissed raw lips. Izuku hummed.

 

"Is that a good or bad thing?"

 

"'s good. Really good."

 

Izuku settled for nuzzling into Katsuki's neck and taking in his presence, panting like a dog when strong hips moved over him in a tantalizing rhythm. 

 

"Your hips, oh god," he breathed. "That feels good. So good."

 

Katsuki grunted at the praise, not letting up. He let wet lips lap at his throat, teeth leaving a mark in his skin. Katsuki tugged those green curls in response. Izuku made a high sound in his chest.

 

"Ha, you seriously whine a lot," Katsuki scolded, his hips never stopping. "For some strong alpha, you sure are weak as hell."

 

"Kacchan, mm."

 

Katsuki smirked, moving faster, pushing down harder. His ass was so firm and warm against Izuku's hard cock.

 

"Like a dog in heat for me, aren't you, my little alpha?"

 

WOW, Katsuki was a good talker. Izuku shuttered, his scarred hands desperately clinging to any part of Katsuki that he could claim and mark. He was feeling something inside him beginning to uncoil.

 

"Oh woah, I'm close," he warned.

 

"Gonna come in your pants?" Katsuki whispered in his ear, his teeth snagging the skin there. He was breathing hard in Izuku's ear, and Izuku was smelling his neck. 

 

He was gone.

 

"Kacchan!" Izuku curls into Katsukis body as he unloads into his shorts. 

 

His hips lift up to meet that hot muscular ass pressed against him, but Katsuki used his strength to keep him pinned there to the ground, forcing the remainder of release out. Izuku was whimpering like a fool. 

 

"I can feel how wet you are," Katsuki gasped, his hands shoveling through Izuku's scalp. 

 

"You didn't..." Izuku breathed as his orgasm fluttered through his system like soft clouds of bliss.

 

Katsuki nuzzled at the scar hidden under the mess of forest green at his temple, shuttering when Izuku's hands shifted into his shorts to squeeze his ass.

 

"It's fine, I don't need—Oi!" He had no time to protest when Izuku was lifting him up like he weighed nothing. 

 

Izuku tosses him on the couch with a small bounce. Without another second passing, he shuffles in between Katsuki's legs with a shy glance up, green eyes still sparkling from his orgasm. 

 

"I wanna make you feel good, too."

 

Katsuki bit his lip and groaned, his thumb pressing at the scar that was large along the greenettes cheek.

 

"Hurry up then," he panted. 

 

Izuku didn't waste time tugging down those shorts, Katsuki's swollen cock popping out with a wet slap to his cheek. He flushed. 

 

"Yer so hard."

 

"Kinda what happens when you have sex, nerd."

 

"I'm happy. You're gonna taste so good."

 

"Fuck."

 

Swollen lips wrap soothingly around the burning tension of his tip. Katsukis felt like his heart was gonna jump out of his chest, right through that spot that used to be a large opening. Izuku moaned around the cock in his mouth, and Katsuki damn near blew up the couch from the sound. 

 

Izuku was good at sucking dick, which really pissed him off, but it felt so mind blowing he could hardly utter a curse. He let his hands find that mane again, his teeth snagging his lip when he helped bob Izuku's head up and down in a steady pace along his cock.

 

An alpha on his knees, willingly taking dick in his throat. Katsuki felt his ego being stroked, he couldn't deny that. The pent up anger from the constant talk of alpha this and omega that all his life was seeping out of him in one solid flow of emotions.

 

"God damn, Izuku. God," he groaned. His head tipped back when his guts began to ripple in pleasure, already feeling that edge tingling at his balls.

 

"Mm," Izuku moaned around him.

 

"You take dick too well," he blabbered mindlessly. His hips stuttered up along Izuku's tongue. "Way too...fuck—gonna come! Fuck."

 

That was all the warning he could muster as he shot down Izuku's throat with a gasp and curse, his eyes rolling back in bliss when his whole body released what felt like decades of tension. Izuku kept sucking at him with little whines, making sure he got every last drop before pulling off Katsuki's softening cock. 

 

Katsuki shivered when a few kitten kisses were pressed to his shaft, teasing the threat of overstimulation.

 

"Come here," he panted out. Izuku wasted no time slithering up the couch and scooping Katsuki's up to cradle him in his arms.

 

Like it were instinct, his nose found the pool of smell right at the base of the blondes collar, and with small breathes he released his pheromones.

 

"Oi, nerd," Katsuki grumbled. "The fuck you doing right now?"

 

"I was...I was scent marking you," he admitted, shyly tucking his face farther into the crevice of a sweat neck where candy like sensations tickled his nose.

 

"How many times I gotta tell you that that shit doesn't affect me."

 

"I know that, Kacchan. But it's...it's almost like second nature when it comes to you," he began. His arms gripped tight around a sturdy body when he felt Katsuki was still vibrating from post orgasm. "For so long, my alpha was very tame, I even thought maybe I was just a beta that had alpha tendencies. But with you..."

 

"What?" Katsuki wondered, his eyes heavy as they look up at Izuku. He looked so soft like this, blissed out and tame, skin flush with aftershocks and hands gripping tenderly at the scarred arms that held him. 

 

Izuku smiled down at him. "I want to claim you. Make you stink so bad of me no other alpha or omega even looks in your direction."

 

"You fuckin, filthy, sexy, dirty, freak," Katsuki laughed. 

 

Izuku chuckled too, leaning down to pepper that scrunched up face with light feather kisses. He felt so good right now like this. Holding his beta, scenting him, satisfied that he was able to give Katsuki such an orgasm. He could stay like this forever

 

"I'm yours now. So...you can do all the stupid alpha crap you want. Not like it bothers me anyway," Katsuki reassured, eyes fluttering close in sleep.

 

"Yer so good to me."

 

"Shudup."

Notes:

Are we liking this dynamic? I feel like Kacchan being a beta just makes sense to me, what do we think?

Chapter 3

Summary:

Drunk friends and slips of the tongue.

Notes:

So this is the friend gathering! I really wanted to add everyone from class A but I was honestly too lazy for the dialogue. So, I just did the characters mainly in the Bakugou squad and the Midoryia friend group. It’s kind of hard to tell who all is an alpha and an omega, let me know if you guys are confused!

Half a dozen empty bottles of alcohol crowd Katsuki's Kitchen counter, but not a single soul bothered to pick them up and throw them away. 

 

Katsuki was basking in his drunkenness on the couch, a few of the extras on the floor playing a stupid card game he didn't bother remembering the name of. Izuku was down on the floor too, cheeks red from alcohol and his smile too wide that Katsuki's face hurt for him.

 

The little alpha bastard looked so jolly, it nearly made Katsuki smile himself before Kirishima slung an arm around his shoulder, his face matching his the bright red of his hair. 

 

"Thanks again for letting us throw gatherings here."

 

Katsuki clicked his tongue. "'s fine."

 

Ochaco giggled from her spot on the floor between Momo and Su, clearly appreciating her tipsiness. The woman was already smiling and pinked cheek constantly, so it seemed like she hardly changed at all when drunk.

 

"Honestly, I thought you were gonna say no us coming, Bakugou. But you're so nice," the woman babbled.

 

Momo laughed politely, sipping the expensive wine she brought that Katsuki just so happened to be drunk off of. So what if he had four glasses? He liked the expensive shit and this was his apartment. He could do whatever the hell he wanted to. 

 

"To be fair, Katsuki's apartment is surprisingly spacious. We threw Jirous birthday party here not too long ago," Sero added.

 

Todoroki sat on the floor next to Izuku, sipping what was probably his first drink in an hour. 

 

"This is nice," he said in his soft monotone voice that hadn't changed from high school. "Bakugou, thank you for having us."

 

"Why the fuck is everyone thanking me?" He grumbled with a pinch to the bridge of his nose.

 

The room filled with chatter again, everyone ignoring Katsuki's curses.

 

Mina was trying to braid Ochaco's hair which was short as hell, so he didn’t know why she was trying. Su and Momo were right there with them, Su drinking a beer and Momo still sipping out of that fancy glass of wine while listening to them chatter about nonsense, Katsuki was sure of. Jirou was arguing with Denki over music choices—not shocking.

 

Sero was filming Kirishima flexing in Katsuki's hallway—what the fuck were they even doing? Todoroki and Ida talked about their agency's—those lame mother fuckers. Katsuki noticed Su and Momo making stupid shit from Momo's quirk all of a sudden. Katsuki could have sworn he saw handcuffs being made. 

 

He ignored it, just buzzing with tipsiness that he refused to ruin by forcing himself to act sober and angry. He felt the empty spot beside him in the couch dip and he peaked open his eyes to see green looking right back him.

 

Izuku scooted closer to Katsuki, gently bumping his shoulder with a smile.

 

"You okay, Kacchan?" he asked, voice warm and low.

 

Katsuki couldn't take his eyes off of him. "Yeah. 'm fine."

 

Izuku giggles as Katsuki slurred over his words. He looked away fast, pretending to be annoyed, but he didn't move away from Izuku. Not even an inch. Why would he, when the bastard seemed so happy to be even just this close to him.

 

Suddenly, over the wave of overly happy voices and chatter, Mina's voice was above all. 

 

"I want a baby so bad," she whined. Her hands still pulled at Ochaco's hair, her dark eyes hazy with alcohol.

 

Clearly she was only having the conversation with Ochaco and the other girls, but everyone heard the commotion and stopped what they were doing, the idiots in the hall coming to the table to take a seat on the ground. 

 

"Mina," Kirshima hushed, eyes wide.

 

"What!" She slurred. "Theres no point in walking on egg shells about it. It's not a secret me and you are desperately trying."

 

"I'm sorry to hear you guys are having so much trouble, but I'm sure itll all work out," Izuku blabbered, sounding so overly nice it made Katsuki snarl.

 

"Yeah, I agree," Sero chimed in from the rug.

 

"Man," Mina exhaled shakily. "The doctors warned us it'd take a lot more effort to give birth considering female alphas have less room in their uterus's to grow babies, but I was hoping I'd be the exception."

 

Silence fell in a soft wave. Todoroki smacked his lips together in a thought. 

 

"Don't they have medicines to help with expanding your womb?" He asked, that blank expression sharp with something intentional.

 

"Why the hell do you know stuff like that, icyhot?" Katsuki grumbled from the couch. 

 

"My brother is in medical school," he deadpanned.

 

"They do have stuff like that, but it would hurt Mina's body in the long run," Kirshima explained, his hand reaching out to grab Mina's carefully. 

 

Ochaco was spun around, her hair half braided and she hugged Mina without hesitation. "It's okay. I'm sure it'll work out," she reassured.

 

"Have you guys looked into adoption?" Jirou wondered, her finger twirling around her earphone jack. 

 

Kirshima smiled with a weak nod. "Of course we have. That was actually our first option. But being pro hero's, we're knocked down far on the list for being an eligible family in the system."

 

"That is true, unfortunately," Ida confirmed. 

 

Mina exhaled. It was long, slow, shaky. Clearly an attempt to hold in tears. She leaned against Kirishima's shoulder, sniffling a bit when she realized she was surrounded by friends who weren't judging, weren't pitying, just there. Kirishima kissed her forehead gently.

 

"Sorry for bringing up such depressing crap," Mina apologized. 

 

"Don't say that," Su shook her head.

 

"Yeah, seriously. It's good to talk about those things," Izuku added.

 

Mina and Kirshima, even with everything they must been feeling, looked happy. They held each other tight and smiled genuinely, everyone else matching their expressions.

 

"Thanks everyone," Kirishima muttered. "You guys are great."

 

"How about another round of uno!" Mina exclaimed.

 

Uno, that's what it was called Katsuki thought. He had finally recalled the name, yet still didn't bother to want to play the game even as Izuku asked him. 

 

"Want to play?" 

 

"No thanks," he retorted, going back to leaning his head against the couch to bask in his drunkenness.

 

"I ain't shuffling the cards again. Too drunk," Sero said, still seeming to be glued to Katsuki's rug. 

 

"Sero, you always get too drunk," Jirou laughs.

 

Ida was shuffling the deck and handing out cards, everyone else filling into spots around the table. Katsuki and Izuku stayed on the couch.

 

"It's the only time I get to. Being a hero is tuff work, rarely a time to sit and enjoy the moment. Can't even have a partner with the rate I'm going," Sero shrugged, cheeks flushed.

 

"Tell me about it," Denki fell back with a groan. “All of us are single and lonely. Well, of course except for Mina and Kirshima."

 

"I'm not single, you bastards," Katsuki spits out, not even thinking. Izuku let out a squeak. 

 

The entire room looked at him like a pack of wolves ready to pounce. Uno cards were left unnoticed, a yellow 6 card currently on the table. 

 

"What!" Kirishima heaped.

 

"Bakugou!" Momo shrieked. 

 

"Who the hell would date you?" Denki added in, tears clearly wheeling up in his eyes from envy. 

 

"Fuck off, it's not a big deal."

 

"It's a huge deal!" Mina crawled across the carpet like a gremlin. "Who is it?!"

 

"Shuddup," Katsuki said immediately.

 

Ochaco clasped her hands together in a prayer. "Do we know them?"

 

"Are they a pro hero?" Denki gasped.

 

"Are they from school?" Jirou asked, eyes narrowing like she was about to crack a case.

 

"They have to be from school, surely!" Ida said stiffly.

 

Katsuki scowled. "I haven't even answered a single question."

 

The room exploded again.

 

"That means yes!" Mina screamed.

 

"Oh my god is it jirou?" Denki asked in horror. Jirou kicked him.

 

Kirishima was laughing so hard he had tears in his eyes, Mina not far behind him. "Bro, this is amazing."

 

Katsuki rolled his eyes. His head was seriously starting to pound as everyone kept shouting theories, names, wild accusations. He sat there simmering, arms crossed, cheeks still red. With a sigh, he looks over to Izuku who sat beside him. 

 

Izuku had been quiet.

 

Too quiet.

 

It was painfully obvious he was trying hard to act normal. His back was too straight, his legs were crossed, he had on a totally neutral expression that was honestly kind of shit considering how red his cheeks were. Katsuki could read that he was trying not to give too much away, and that fact pissed him off. 

 

Without a single thought, which he seemed to be lacking tonight—he'd blame it on the alcohol—he put an arm around Izuku, pulling him tight into his side. 

 

Izuku flinched.

 

And by instinct, pure, unthinkable instinct, the alpha in his head screaming at him, he leaned into Katsuki's side.

 

"Ah, I see," Todoroki said calmly not even a moment later.

 

Katsuki furrowed his brows. "You don't see shit!"

 

Momo's eyes widened.

 

Ochaco covered her mouth.

 

Jirou dropped her Uno cards.

 

Sero's jaw fell open.

 

"Ribbit," Su hiccups, breaking the silence.

 

Denki pointed dramatically. "Oh. My. God."

 

Mina screamed. "It's Midoriya?!"

 

Izuku squeaked.

 

“You idiots are so annoying!" he roared, ears glowing a furious red. Uncousiously he held onto Izuku tighter, shielding the greenette from all the stares they were met with.

 

Izuku hid his face behind his hands. "This is so embarrassing."

 

Kirishima clapped like he was cheering for a fireworks show. "I knew it! Manly love at its finest."

 

"I sensed his pheromones on you when I first walked in, now that I think about it," Ida said with a stiff wave of his arm.

 

"I smelt it too," Momo added.

 

Todoroki simply nodded. "It makes sense. You two seem like a good match."

 

"Shudduppp."

 

"Who would have thought, Bakugou actually dating somebody, and it being Midoryia of all people, ribbit," Su said. 

 

"Heh, I know right," Sero laughed

 

Denki was practically crying on the carpet, his uno cards scattered all around his body. "This is so annoying!"

 

Izuku was bright red when he whispered to Katsuki, "Um...I'm gonna go cool down. Just for a bit."

 

Katsuki hummed with a sympathetic gleam in his eyes. "'kay."

 

Izuku stood up suddenly not doing anything to hide how flustered he was. 

 

"I'm just gonna go to the bathroom! I'll be right back!" He practically tripped over Sero's leg on the way out.

 

Katsuki watched him as green slipped into the hall, missing the bathroom door by a long shot and heading to the bedroom. The door clicked shut behind him. 

 

Mina immediately plopped on the couch in the spot Izuku once was. That shouldn't have made Katsuki as irritated as it did. 

 

"Aren't you two the cutest couple," she said bashfully.

 

"Something like that," Katsuki growled, leaning away.

 

Momo tapped her lip politely as she set down her glass of wine for the first time that entire night. "How is it, being a Beta with an alpha?"

 

The question immediately shot off emotions inside him that if he were a couple years younger, would have made him blow the entire apartment up. 

 

Instead, he gave a civil grumble of a response. "Don't know. Not any different than how you extras date."

 

"It still sucks though," Denki whined from his spot on the floor. "You'd be lucky if you were an omega."

 

"Why the hell do you say that?" he barked.

 

Todoroki was picking up all the cards that had scattered around the table from the commotion, Ida assisting him. 

 

"Don't you know? Izuku has very nice pheromones," the half and half bastard admitted. 

 

Lucky to be an omega? Just because of Izuku's scent?

 

"Some people would consider him a dominant alpha, but he's still the gentle type," Su said. "I remember all the omegas who worked at my agency asking for his info when they met him at the hero convention a few years back. Ribbit. He's a stand up."

 

His fingers tightened around the couch cushion. A muscle ticked in his jaw. A heat shot through his chest, prickly and electric. Had other omegas thought those kind of things about Izuku? Was there people trying to...claim Izuku the way Izuku claimed Katsuki?

 

Of course the extras just went on and on, only fueling the fire that seemed to be burning Katsuki up the longer he heard them talk.

 

"Yeah, and as an alpha, he never does that intimidation crap. Well, not anymore," Sero says with a snicker, quickly nudging Kirishima with a quirked brow.

 

Kirishima looked down in shame.

 

"The hell you talking about?" Katsuki spat out. 

 

"In high school," Kirshima began with a frightening shiver as if the memory alone was too much to bare. "When me and you first started getting close, Midoryia would pin me with a stare pretty often. He was majorly possessive of you back when we were kids."

 

"I remember that!" Ida added in as he adjusted his glasses. "One time it got so bad you had to go to the nurse." 

 

"Oh yeah, poor Ejiro, you were sick for a few days," Ochaco whined.

 

"Where was I for this?"

 

"To busy blowing stuff up, probably," Su laughed. The others chimed in with their own giggles. 

 

Katsuki looked at his hands in a strange tangle of emotions. If he were an omega, he wouldn't have been so damn oblivious. Apparently the nerd had claimed him long ago, probably had been scent marking him since he had presented as an alpha. But Katsuki had no idea.

 

Momo, who was picking up her glass again, pointed at Katsuki with a proud glimmer in her eyes. "But really, you're a lucky guy, Bakugou. Midoryia is a sweet alpha." 

 

Momo was a dominant alpha, known for her novelty. It was rare she ever complimented another alpha on their behaviors, even the ones in their friend group. So he knew it must be true, which only turned the raging hell fire in his stomach into a thundering explosion.

 

"That pisses me off more then it makes me happy," he hissed. He didn't even feel like talking anymore, he was so aggravated. 

 

Sero swallowed. "Dude...we didn't mean—"

 

"I know what you meant," Katsuki muttered, looking away, lip curling slightly. "But don't act like the only way I'd appreciate him is if I were something I'm not."

 

Mina's face softened in an instant. "Bakugou...we weren't trying to insult you. Or your bond."

 

"Whatever."

 

And over all the noise of apologies, Katsuki's eyes flicked toward the hallway where Izuku had disappeared, the expression on his face one he didn't show anyone else often. Then, with a silent curse, he stood up and head to the bedroom.

 

"Look what you did," Jirou whispered as she kicked at Denki's knee.

 

"I didn't do anything!" Denki said in defense.

 

"Yer the one who brought up him being an omega and crap!" 

 

"And you all chimed in!"

 

Kirishima rubbed the back of his neck. "Damn."

Katsuki was down the hall already, completely missing the conversation. The door of his bedroom was cracked open. A soft light spilled out.

 

He could hear a bit of rummaging inside, which he knew was Izuku. Katsuki pushed the door open gently, stepped inside, then closed and locked the door behind him with a quiet click.

 

Izuku, where he was sitting on the end of the bed, looked up instantly at Katsuki. His face was still a bit flushed, but it was evident he had managed to cool off enough to not look like a total raging strawberry anymore.

 

"Hey, Kacchan. Sorry I was gone for so long, was just getting a bit—wait, are you okay?"

 

Izuku blinked, confused as the blonde approached the bed slowly, his eyes clearly filled with anger. Now he was looking down at Izuku. His hands at his sides, that pit in his belly still burning.

 

"Kacchan...?" Izuku inhaled softly, chest expanding, pupils widening just a little.

 

Katsuki planted himself squarely in the greenettes lap, knees digging into the mattress on either side of Izuku's thighs. He ended up straddling Izuku more out of frustration than intention, but he couldn't help but be satisfied from the gasp Izuku let out as he sat down on him.

 

"What's going on?" Izuku asked with concern. It was impossible to miss the breathlessness of his voice as he spoke.

 

Katsuki leaned down immediately as an answer. His hands squeeze at broad shoulders that steamed hot through a long sleeve shirt. He buried his face into the pit of Izuku's neck, the same place that Izuku always scent marked him at.

 

He inhaled hard.

 

Once.

 

Then twice.

 

There was nothing. His scowl deepened.

 

"Pisses me off," Katsuki muttered, lifting his head just enough to glare at Izuku. 

 

Izuku looked blankly at the man. "What's wrong?"

 

"I can't fuckin smell you," Katsuki snapped, frustration bleeding into his voice. The conversation he had with the extras earlier began to replay in his head, his teeth clinking in a hiss. "Those idiots told me your pheromones are good, and that I'd be lucky if I were an omega. Why am I not lucky? Huh? Why can't I smell you? Claim you, mark you, scent you so people know not to fuck with you?"

 

Izuku's hands hovered uncertainly at Katsuki's waist, not sure what kinda of contact was correct to navigate his frustration. With a quiet breath and petted up the blondes back with slow comforting strokes. Said blonde almost forgot he was angry, but of course he didn't. 

 

"Hey, hey. Are you sad about that? Don't be upset," Izuku tried, but it only made Katsuki realize how pathetic he must sound. 

 

"I'm not sad. Im...envious, okay?" Katsuki went on, annoyed.

 

Izuku's expression softened painfully. 

 

Did he secretly wish Katsuki was an omega too? Deep down, he must. He wishes Katsuki could smell him, could truly appreciate those stupid instincts. But he couldn't, and it really pissed him off. 

 

Katsuki leaned forward again, pressing his forehead against Izuku's collarbone this time. Even though he knew he couldn't smell his pheromones, he was breathing him in anyway. Stubborn and determined, like if he tried hard enough his body would cooperate and maybe he would be able to sense them.

 

Katsuki had rarely ever doubted himself in all his life, especially not when it came to stupid alpha and omega crap. But Izuku had flipped him on his head since the day he burst into his apartment with that crazy possessive look in his eye, desperately claiming Katsuki. And Katsuki went a long with it because it felt right, natural. But it wasn't. 

 

An Alpha and a Beta? Who the hell was he trying to kid? 

 

His chest hurt, his eyes burned.

 

Izuku's arms suddenly came around him then, slow and sure, but his hold was tight and secure. He rested his scarred cheek against Katsuki temple. 

 

"I'm yours. I'm all yours," was all he said.

 

The anger in Katsuki's chest twisted into something else. It was so sharp, tight. But he didn't hate the feeling.

 

"How are other people supposed to know that?" Katsuki huffed in a pout. 

 

Katsuki panted when a scarred hand lifted his head from a hot shoulder by his chin, forcing him to look into green eyes. Those eyes were hazy, full of something that helped Katsuki shape his thoughts together.

 

"Bite me. Here," Izuku whispered, drifting to tap at his own neck where Katsuki had once been sniffing like his life depended on it.

 

Katsuki quirked a brow. "Deku."

 

Izuku smiled sheepishly. "Only a little? We aren't going to go crazy."

 

He leaned forward sharply.

 

Izuku barely had time to inhale before Katsuki's teeth pressed into the side of his neck. Not hard enough to hurt. Not enough to break skin. Just a sharp, frustrated bite that the bastard had granted him permission to do.

 

"Kacchan—!" Izuku gasped, hands flying up to Katsuki's waist. "Good. That's p-perfect."

 

The blonde pulled back just as fast, eyes wide, chest heaving.

 

"Shit," he muttered. "That okay?"

 

Izuku blinked, startled but not scared. A red flare of skin began to puff up where teeth once were, Katsuki's thumb mindlessly stroking that spot.

 

"Mhm. I like when you claim me," Izuku admitted softly. "You could have kept going, you know?"

 

Katsuki clenched his jaw, fingers digging into either side of Izuku's shoulders.

 

"Yeah? I liked it too."

 

Izuku reached up slowly with a smile, brushing his thumb along Katsuki's jaw. Then up his cheek, grazing over that scar. Katsuki leaned into the touch.

 

Izuku's hand slid to the back of Katsuki's neck, grounding. "You're so perfect for me," he murmured. 

 

Katsuki's breathing slowed.

 

He leaned his forehead against Izuku's, teeth no longer clenched, anger easing into something tight but controlled. 

 

"Fuck you," he breathed, but Izuku laughed because he knew how endearing that really was. 

 

The explosive man was embarrassed, eyes closed to hide his once overbearing insecurities, but once again that green haired alpha bastard saw right through them and knew exactly what to say. 

 

Katsuki seriously couldn't stand this nerd. But damn, he couldn't resist leaning in and smothering him with a hungry kiss.

 

Izuku gasped, but didn't take long to settle into the heat. Arms tangled around one another, urgent to stick close, to never be apart. 

 

Katsuki snagged Izuku's lip with a hearty bite, almost tempted to chew through the skin and draw blood. He settled for making it swollen when Izuku whined from the pain, as if the bastard didn't break his entire body throughout high school. 

 

Katsuki felt too fuzzy, too clouded. His mind was only filled with Deku, Deku, Deku. 

 

Much better than whatever his stupid brain was doing before. Self doubt? Self pity? He was disgusted with himself just thinking about it. 

 

As Izuku went to deepen the kiss with a slither of his tongue, Katsuki pulled back, shifting off Izuku's lap and onto his knees. In between Izuku's legs.

 

"Oh Kacchan, what are you—" he began, but couldn't finish when Katsuki was tugging out his already weeping cock from his pants. 

 

"Shut up," he grumbled, his lips brushing the bulging veins. "We gotta make this quick."

 

He takes Izuku into his mouth with a growl, his eyes rolling back from the heat on his tongue. Izuku was big, no doubt an alpha, his smell strong here and the throbbing pulse most likely matching the speeding pound of his heart.

 

Izuku's knees kicked open more to let Katsuki broad shoulders fit properly, his eyes foggy with a dream as he watched. 

 

"Ah, yer good at this," he moaned. "Knew you would be."

 

His throat bobbed around the head with determination. Katsuki wasn't lying when he said he wanted to make this quick. He was blowing Izuku's mind. Scarred hands found tuffs of blonde and petted, praising the beta over and over until he was only reduced to pathetic sounds. 

 

His head tilted back when a tension tugged at his balls, slurping wet sounds tightening the knot. Izuku gasped and grabbed both sides of Katsuki's head with trembling hands. He was fighting with himself to push the man off or force him farther down, and Katsuki took it upon himself to choose the latter.

 

He sunk until he gagged, eyes welling with tears as he lathered his tongue all along the underside of that pulsing memeber. He could feel the throbbing of his climax coming near, and he let that feeling in his mouth encouraged him to never stop. To move faster, harder.

 

"Good boy," Izuku panted, losing his mind. "Already close. Already, coming!"

 

With a painful shake, he unloaded into Katsuki's throat. He whined when Katsuki didn't let up. He sucked out every drop, finally popping off when Izuku's knees began to jump in overstimulation.

 

"Taste like shit," he said as he dragged his knuckles across his swollen, spit covered lips. 

 

"Sorry," Izuku shied. His thumb brushed over Katsuki mouth with a silent praise, then he whispered, "Come here."

 

Katsuki didn't hesitate. He got off the floor with a crack of his knees, allowing Izuku to guide him onto his back on the bed. He felt way to excited, like a little virgin about to get laid for the first time. 

 

Izuku drifted over him with a glow from his orgasm still shimmering along the sweat on his skin. Katsuki was getting desperate when scarred hands teased at his waistband.

 

"Hurry up. Touch me," he demanded. 

 

Izuku smiled and leaned down to press soft kisses along Katsuki's forehead, then his cheeks, then his neck, enticing a full body shiver from the blonde.

 

"Be quick for me, yeah?" He mumble, evidently aiming for the gland there in his neck that would usually hold pheromones. "Don't wanna keep our friends waiting."

 

Katsuki grunted.

 

"Then get to stroking."

 

Izuku breathed a reply that Katsuki had no use hearing when a rough hand tug into his pants and stroked over his cock. 

 

Fuck, he felt like this was his first time being touched. It burned, a bit dry against calloused fingers. Izuku took it upon himself to bring his hand away, spit in it, then continue stroking.

 

That image alone almost made him cum.

 

"Fuck."

 

Izuku purred against Katsuki, nibbling his jaw when his fingers worked him carefully. Intentional, that's the only way Katsuki could describe how this bastard had sex. His wrist knew when to twist, his fingers sensing when to tighten. 

 

Katsuki groaned and clung to those broad shoulders, sensations burning through his cock too fast and too sudden.

 

"You look so pretty, Kacchan," Izuku whispered against his cheek.

 

The man panted from the praise. "Shut your shitty mouth."

 

"So mean," Izuku whined, licking Katsuki lips for entrance. "Open up."

 

Katsuki didn't hesitate to listen. His lips opened and in came that burning wet muscle, the one that had felt so good on his dick the other night. Katsuki moaned from the memory, his legs twitching when that scarred hand sped up.

 

He couldn't grumble out any complaints or insults, drowning in the kiss, his legs spreading when he felt his body tightening up to release. Izuku kept him trapped there against the mattress, and again his hand sped up, sending Katsuki into a fit of twitching muscle.

 

Katsuki wasn't breathing when he came all over Izuku's hand. Izuku moaned for him, perhaps star struck with the feeling of Katsuki's load hot along his palm, the veins of his shaft twitching in his fingers. 

 

Katsuki swallowed loudly when Izuku finally gave him room to breathe. His chest heaved, his eyes dragging heavily with sleep.

 

"Damn," he murmured. 

 

"Don't fall asleep, Kacchan. You go on out and keep our friends entertained," Izuku reminded. 

 

Oh yeah. I forgot all about those extras. Why did I even come in here in the first place?  

 

"Fucking fine. Don't take forever," Katsuki grumbled. He tucked his soft and sensitive cock back into his pants, making sure he didn't have any cum on him before stepping out in the hall.

 

"Oh, woah!" Denki shouted with a pinch of his nose as Katsuki plopped on the couch. 

 

All the idiots were playing uno again—Katsuki remembered the name, kiss his ass—but they ultimately halted everything they were doing in order to stare at him.

 

"The fucks your guys problem?" He barked with no bite. 

 

He was still feeling high from his orgasm. Izuku was too good at making him forget why he was mad. Seriously, Katsuki had no idea what the hell he was even upset about before coming out here. 

 

"You smell...like Izuku!" Ida exasperated.

 

The rest nodded in agreement, laughing awkwardly. 

 

"We all know what they were doing in there, ribbit," Su shook her head.

 

"You don’t know shit!" Katsuki hissed, but nobody missed the glow of his skin and the light in his eyes. 

 

Izuku eventually finished cleaning off his hand and came back into the living room too, everyone looking at him with giggles. He felt embarrassed all over again.

 

"Uh, hey," he said, voice cracking just a little. "Did I miss—?"

 

Mina gasped dramatically. "Look at his neck!"

 

Izuku flushed instantly, cuffing his hands around his throat. "W-what about my neck?!"

 

Denki pointed from the floor and laughed. "We know what you guys were doing!"

 

"W-we weren't doing anything!" Izuku blurted out way too fast.

 

Sero was grinning from his spot on the rug. Had he moved an inch since they left? "You were gone for a while, Midoriya."

 

Jirou smirked. "Long enough for Bakugou to come back suspiciously calm."

 

Izuku glanced at Katsuki. The blond was already sitting on the couch, arms crossed, expression neutral but ears unmistakably red. He must have gotten teased too. 

 

Izuku's brain short circuited, doing nothing to deny the accusation.

 

"I— I just needed some air," he stammered. "and then Kacchan came to check on me, and we talked, and—!"

 

Occhaco clasped her hands together. "Awww, they talked. We kinda made Bakugou mad earlier, but thank goodness for you."

 

Momo giggled. "You two look so embarrassed. It's quite adorable."

 

Katsuki clicked his tongue. "I don't look like anything."

 

Izuku tried to retreat, but Katsuki grabbed his wrist and yanked him down onto the couch with a soft huff.

 

"Sit," Katsuki muttered.

 

Izuku landed beside him with a strangled sound in his throat. Then Katsuki immediately wrapped an arm around him, pulling him in close like a shield. Mindlessly, his thumb grazed over the bruise he left there on the alphas throat, feeling a bit pride when looking at it like this. 

 

"Tease him again and I'll explode the uno deck," Katsuki warned, not even shooting the others a glance.

 

"Eh, it was worth," Kirishima laughed. 

 

Izuku hid his face against Katsuki's shoulder, burning with embarrassment but smiling despite himself. Todoroki was declared the winner of the uno round, and with quiet amusement, Ida gathered the cards and shuffled them, handing them back out. Ida’s eyes drifted over the half and half hero longer than they probably should have, but nobody seemed to notice.

 

Katsuki was already sleeping against Izuku by the time the first person shouted out "UNO."

Notes:

Every chapter now is deadass just going to be filled with smut. Not that I think any body is complaining, ya freaky deakys.

Ps. Did anyone notice Ida and Todoroki? Yes, I ship them, and I am determined to make omegaverse fiction for them. One day.

Chapter 4

Summary:

Dynamite gets hit with a quirk that simulates an omegas heat. Whatever shall he do?

Notes:

As much as I hate this trope, I can’t help but love it. I had to write it though, strictly for the plot. (I really just wanted to write about Kacchan in heat, Sue me).

Red Riot, get a move on with the civilizens!" Dynamite shouted as he blasted through the alley.

 

"Got it!" 

 

"Suspect is in the road. Be cautious of her quirk, Dynamite," his coms warned, to which he grumbled.

 

"Yeah, yeah."

 

The threat was the woman standing in the center of the street. She was too calm, smiling, swirling a strange purple vapor between her fingertips like it was nothing more than perfume. Everyone had been cleared out of the area thanks to Red Riot, meaning it was a one on one battle.

 

Only thing was that shitty quirk.

 

Suspect: VaporBend

Quirk: she lets out a gas that when inhaled, sends someone into an omega like heat, no matter the gender.

 

"Dynamite," she crooned from the street. "I've been waiting for you."

 

Dynamite didn't bother answering, still too pissed off from the inconvenience of such a shitty quirk. 

 

He just settled for launching himself forward with an explosion that shattered the asphalt under his boots. The villain dodged easily, the haze around her shimmering with every movement.

 

She flicked her hand.

 

The cloud rushed at him like a living thing, but Dynamite blasted himself up and over it, heat roaring from his palms. 

 

He thought he managed to scarce by, but the woman tilted her head and exhaled, a second wave of purple smoke shooting upward and catching him mid air from her mouth.

 

Dynamite's eyes went wide.

 

He tried to blast away, but the vapor slammed into him like a wall. It crawled over his skin, seeped under his collar, sank deep with every breath he couldn't stop himself from taking.

 

"What the hell—?" he choked, stumbling as he hit the ground hard.

 

The gas didn't burn. It didn't choke.

 

It pulled at him.

 

His pulse skyrocketed, muscles locking tight then loosening all at once. His palms crackled with unstable sparks, explosions stuttering.

 

The villain giggled. "Got you. My little omega."

 

Katsuki snarled, getting to his feet. "Screw you—"

 

Another wave of gas swept around him, curling like fingers across his jaw. Dynamites vision blurred at the edges, colors too bright, sounds too sharp. He slipped in and out of consciousness, and the last thing he heard as he hit the ground was the sound of that stupid villain like laugh echoing through the street.

 

 

It didn't take long for him to awaken. Noise was the first thing he recollected, sirens fading into the distance, murmured voices, the crackle of a medic's radio. 

 

Then it was the sensation. Heat—way too much of it—felt like it was trapped under his skin, burning in his chest, his throat, his spine. His hero uniform felt like lava, his mind going to pin that as the reason for the itchy feeling corroding through his limbs. 

 

Katsuki groaned and tried to sit up. Immediately his vision was greeted with Red Riots worried expression. 

 

"Dynamite! Are you alright?" The red head shouted.

 

Dynamite frowned, head pounding. His body felt wrong. It was too sensitive. It felt like every nerve was buzzing inside him. And fuck, what was that smell?

 

"The fuck happened?" He growled, his voice feral around the edges.

 

"You were hit with VaporBends quirk and got knocked out."

 

"What?" Dynamite snapped, trying again to move. The heat flared violently at the motion, stealing his breath. "The villain, where is she?”

 

"She's in police custody now. She didn't run very far. Seems her quirk fatigued her pretty bad," Red Riot reassured.

 

Katsuki calmed at that, except he didn't, because his body continued to flare with signals that he didn't recognize nor did he want to acknowledge. And that damned smell. It was...awful! Where was it coming from? 

 

Wait a minute.

 

Silence brewed for a while, Dynamite doing everything in his power not to twitch. 

 

What the hell was wrong with him? Was this that villains quirk? It didn't particularly feel like anything, but it felt like everything.

 

"Um...dude," Red Riot said, cutting into Dynamites thoughts.

 

"What?"

 

"You...you smell like a—" he hesitated, his face scrunched

 

"Like a what!" Dynamite spat.

 

"Like an omega!"

 

One of the medics suddenly appeared from the ambulance, as if the word omega was a trigger for her lecture. 

 

"That would be VaporBends quirk," she said carefully. "Aerosol-based. It induces a false secondary response."

 

Katsuki frowned, head pounding.

 

"False what?"

 

The medic sighed in defeat as if having to relay the news pained her. "It's the omega heat simulation."

 

The words landed like an explosion.

 

"So I'm in fucking heat right now?" Dynamite  snapped, trying again to move. The warmth flared violently at the motion, stealing his breath. "Fucking Christ."

 

"I know," the medic said quickly. "You're still you. Your body's just reacting to bad information. You'll experience physical changes, like slick and pheromone sensations. And you'll also have neurological signals of wanting to...mate, essentially."

 

Katsuki clenched his teeth, fists shaking at his sides. The anger was there, not doubt sharp and familiar, but it was tangled up with something else now. Something restless. Uncomfortable. 

 

Infuriating.

 

His skin felt too tight.

 

His chest too full.

 

His instincts screaming without a direction to aim them.

 

"Get it out of me," he growled.

 

"We're counteracting it," the medic assured him. “Suppressants, blockers, cooling agents. But it will only help you with the first wave."

 

Katsuki laughed once, humorless. He stared up at the evening sky and forced his breath to steady while his body tried to betray him in ways it never had before.

 

"I suggest you go home, sir."

 

"She's right," Red Riot added. "It's not safe for omegas when they are in heat. And you're already releasing pheromones."

 

"Tch. Could say the same about you," he slurred. "You smell like shit. Do all alphas smell like that?"

 

"I don't really know what alphas smell like, man. Sorry my pheromones aren't comforting, though."

 

"'s fine. Think it's the only thing keeping me from...acting different."

 

"Are you feeling alright so far, Hero Dynamite?" The medic asked.

 

"I feel fuckin hot, but that's it," he lied. He was feeling a lot of things, places tingling that shouldn't be. 

 

The medic nodded, adjusting the IV that was in Dynamites arm. "Like I said before, the suppressants we gave you should support the first wave, but once the second one hits, they won't be of much use. It's going to last you about 10 hours, maybe even more."

 

"So then what? I just suffer?" He grumbled, the sound almost coming off as a whine when something in his belly clenched. 

 

"Do you have a partner to help you?" The medic asked.

 

Immediately green hair and a stupid freckled face came to his mind. Dirty, filthy thoughts filled his mind soon after.

 

Izuku. Mine. 

 

Dynamite shook his head before ripping the IV out of his arm and lunging out of the cot. 

 

"That's none of your business," he growled. "Get outta my way. I'm going home."

 

"Dynamite! Wait!"

 

He didn't hear anything else before blasting off into the sky.

 

—

 

Dynamite didn't remember getting home. He remembered unlocking the door. Kicking it shut behind him. Sliding down against it until the floor caught his weight.

 

And then the heat hit him again. It was internal and all wrong, not supposed to be there. It was curling under his skin and settling deep in his gut.

 

"Fuck," he rasped, dragging a hand through his sweaty hair.

 

He forced himself up, stumbling toward the couch, then the bedroom, then back again. He was unable to stay still, unable to settle. Every nerve felt tuned too high, every thought too loud.

 

The medic had warned him. Suppressants will blunt it, not erase it. The first wave. There would be a second? How did he know? What if he was experiencing it now?

 

Dynamite ripped his uniform off and tossed it aside, pacing naked across the apartment. Even with nothing clinging to his skin he couldn't escape the unbearable itch of heat that pooled over his body.

 

He settled for lying on the cool tile of his kitchen floor, breathing hard through his teeth, refusing—absolutely refusing—to let whatever this quirk had done take anything from him.

 

"I'm not—" His voice shook. He stopped, jaw clenching. "This doesn't get to control me."

 

Heat nonetheless pooled low, restless and demanding in a way he hated, not giving a damn about his pride and will power. His instincts—they weren't even his, just some false neurological signals—kept misfiring, searching for comfort that wasn't there.

 

For someone that wasn't there. That realization made his chest tighten painfully. He hated that part most of all. How fucking lonely he felt.

 

Katsuki collapsed onto the couch eventually, curled forward with his elbows on his knees, fingers digging into his thighs to take his mind off the throbbing ache of his cock. Sweat dampened his neck. His breathing came uneven no matter how much he tried to control it.

 

Time stretched, making minutes feel like hours.

 

Cravings shed through the dark like the sun in his head. Green. His body tingled, his head lifting with a hearty pant from his lips when Izuku came to his mind.

 

Alpha. I want...

 

He licked over his lips. Without his permission his cock twitched, and then something...came out of him. 

 

He gasped as he spread his legs. There, in the pulsing of his asshole, was a clear slick substance being released with every wave of heat that passed through him. 

 

"Fuck no," he cursed, his eye brows furrowing. This was totally real. He was a fucking omega for the next 10 hours and there was nothing he could do about it.

 

Then—out of curiosity, of course, there was no other reason—he reached down and grazed his fingers over his own hole. His body gave a full body shiver. 

 

It was so wet, so hot. He really wanted to know what it felt like inside. It would feel so good, he was sure of it. Just fingers would fine. But if he had something else...

 

He shook his head, swallowing around the many thoughts hissing like poison, infecting him. He had to stick this out. He wasn't going to give in. He couldn't. 

 

But maybe just a little...

 

His legs clamped closed, a moan spilling out of his throat when his cock was wedged there in between his thighs. It was the only ounce of friction he allowed himself. 

 

He wouldn't give in. 

 

—

 

Izuku knew it was true the moment he stepped into Katsuki's apartment. 

 

Kirishima had called him in a fit while he was in class. Izuku couldn't believe what he had heard. As fast as he could, he zipped here, but it was clear he was late. Far too late.

 

The air was strong. Too warm. Too heavy. Katsuki's scent was powerful, tangled with something unfamiliar and strained that had never clung to him before. Izuku's alpha instincts stirred immediately, uneasy and alert.

 

"Kacchan?" he called softly, shoes already kicked off.

 

No answer.

 

His heart started racing, then pounding when he saw Katsuki's hero uniform discarded in the living room. 

 

He followed the sound of uneven breathing down the hall, the smell growing stronger. He stopped short in the doorway of Katsuki's bedroom.

 

The bed was stripped. Instead, on the floor, Katsuki had dragged blankets and pillows into a rough circle. It was messy, uneven, clearly done without much thought. 

 

This is a nest. Izuku's breath caught painfully in his chest.

 

Katsuki was curled in the middle of it completely bare and vulnerable. His skin was flushed and evidently damp with sweat. His knees were pulled up so his arms could wrapped around himself. His jaw was clenched even in sleep, brow furrowed like he was fighting something while unconscious.

 

He stepped inside slowly. He was careful, feeling like he was approaching an injured animal that might bolt if startled. 

 

The nest was messy, too tight in places, too loose in others, but it was perfect. Katsuki looked so wonderful in it.

 

Izuku knelt at the edge of blankets.

 

The heat radiating off Katsuki was intense. It was easy to sense that Katsuki had been like this for hours. He did this alone, Izuku realized, and his throat tightened in sadness. 

 

Izuku reached out, stopping just short of touching him. He didn't want to overwhelm him. Didn't want to trigger anything Katsuki hadn't accepted yet.

 

"Kacchan," he murmured again, softer. "I'm here."

 

Katsuki stirred finally, eyes fluttering open just a crack.

 

Red dilated eyes locked onto green.

 

For a split second, Izuku saw panic flash there. But then relief evidently washed over him. Because Izuku was there. After hours of Katsuki seemingly hallucinating him, holding hold him, scenting him, fucking him. He was here. 

 

He straightened instantly from the pile of blankets he formed on the floor, scowl snapping into place out of pure instinct. 

 

"Deku," Katsuki rasped.

 

Izuku smiled shakily, tears burning at the corners of his eyes. "I'm so sorry I took so long. I'm such a bad alpha."

 

Katuski shook his head and snatched the red tie around Izuku's neck. "No. Yer my alpha. Now get over here."

 

He eased one knee into the nest, careful not to disturb the blankets Katsuki had arranged, careful as he slipped his arms around him. Katsuki never let go of his tie. He leaned fully into him. His head dropped against Izuku's shoulder, heavy and exhausted, clearly feeling the fight he experienced against hours of his heat.

 

Katsuki made a quiet sound when he settled. It was something between a breath and a growl, and his fingers fisted into Izuku's tie like he'd been holding himself together by sheer force until now, and now that he had what he wanted, he would die before letting go.

 

Izuku swallowed hard, eyes burning.

 

"I've got you," he whispered comfortingly. "You don't have to hold back anymore, Kacchan."

 

Izuku's breath caught soon after he spoke.

 

Katsuki hadn't meant to release it. Izuku could tell he didn't know how to control it. His body was finally easing, finally admitting it needed comfort, even if Katsuki himself would never say the words.

 

Katsuki's pheromones surged outward in a sudden, unmistakable wave. It was strong enough that the air itself seemed to thrum with it. Izuku sucked in a breath before he could stop himself, eyes widening as the scent hit him full on.

 

Smoke.

 

A fire that was layered beneath something rich and unexpected.

 

Caramel.

 

It was Katsuki's usual smell, the one that always made Izuku lose his mind any time he was hit with it. But it was different this time. Warm. Dark. Almost molten. The combination was overwhelming in its own way. Izuku's alpha instincts flared hard, heart stuttering in his chest.

 

"Oh...wow. Kacchan, you smell..." 

 

"Fuck," Katsuki muttered, voice dropping. "Can't stop it." 

 

Izuku's brain was firing off in waves as that smell continued to pelt him. It was so good, made him feel so full. But now he was reacting, his alpha was reacting.  

 

Kacchan needs me. He wants me. My omega. 

 

His pheromones began to roll out in reaction to Katsuki's call.  Katsuki sucked in a sharp breath. 

 

Mint and tea tree, cool and fresh like crushed leaves between fingers.

 

Katsukis whole body jumped at once. His shoulders tensing, fingers curling hard into Izuku's shirt, a low sound tearing out of his throat before he could stop it. Then, he was stuffing his face into Izuku's throat, gasping at that cool simmer of smell intoxicating him.

 

"Izuku," Katsuki swallowed, eyes squeezed shut as he pressed his face hard into Izuku's neck. "Holy shit, I can smell you."

 

The scent hit him fully then, cutting through the lingering heat in his veins in the best possible way. It was like his head had been underwater and Izuku just dragged him back up for air.

 

Izuku wrapped his arms around him immediately, firm and steady. 

 

"I-I'm trying not to emit too many pheromones right now, but i-it's hard. My body's reacting to your scent. You smell so...you smell so good. Minds—going blank," he admitted.

 

"No—!" Katsuki snapped, then quieter, "You—ngh—shitty alpha nerd. Smell so damn good."

 

"Kacchan."

 

It was clear as Katsuki began to tug at his shirt that he was growing impatient. This was the third wave, Izuku sensed as that strong smell punched him in the nose.

 

The smell of an omega wanting to mate.

 

"Shut up," Katsuki said. "Fuck...shut up. It's so hot. My dick. Touch it, Deku. Hurry up."

 

Katsuki scrambled to grab at Izuku's wrist, desperately tugging them toward the weeping cock in between his legs that was soaked silly with pre.

 

"Okay. Okay, relax for me," Izuku pleaded. 

 

He laid the man back with a coo, Katsuki hips lifted up in response. Izuku was getting a good look at him now, hot muscle twitching under red skin, scars littering his body with war and pain. Izuku bit his lip. 

 

Then, with a steady sound of warning, he wrapped his hand around Katsuki's dick. The blonde practically jumped out of the nest, screaming when it was all too much but not enough.

 

And that smell, so rich and smooth, cooling down the heat that seemed to never end.

 

"More! Give me more! Holy—" Katuski moaned, his legs spreading instinctively when Izuku wedged his thighs underneath them, his hand fisting hard and steady over a hard cock.

 

"This must be so overwhelming for you," he whispered. "Going from not having any gender senses to being bambardiaded with smells. I'm sorry. You must be in so much pain."

 

"Less talking, more—" Katsuki shouted when Izuku kissed at his chest, sucking along his nipples. Katsuki had never been touched there before, but it dawned on him that if he were to get pregnant and have a baby, milk would lactate from here.

 

Fuck...a baby. Katuski shivered. His hands found the fabric of his shirt and yanked Izuku up enough so his nose could intake that patch on his neck where the tea tree scent was the strongest. 

 

This is my alpha. Mine. This is the one that is going to get me pregnant. Yeah. Yeah, that's right. 

 

"Smell so damn good," Katuski confirmed.

 

Then, with a growl, teeth snagged the tuff skin of Izuku's neck and the man shouted in pain. Blood seeped past Katsuki's lips, to which he licked up with a moan. He never saw himself as a biter, and especially not into blood, but his brain was absolutely fucked at the moment, so anything about the green haired bastard made him desperate to have it.

 

His. All his.

 

"Mine. You're mine. Say it," Katuski demanded. 

 

"I'm yours, Kacchan," Izuku whined, his hand never letting up as it moved with a hard friction over Katuskis dick. "I promise I'm yours."

 

Katsuki was satisfied with that, his teeth settling for the skin on his own lip when his tummy pooled up in pleasure. He cock was throbbing, hard. It had been swollen and needy for release hours ago, and finally, relief was starting to settling in.

 

Izuku could smell that he was close, that smokey heat coiling in a rich flavor, warning him, praising him.

 

"Come for me," Izuku demanded.

 

"Shit!" Was all Katuski was able to muster as he came all over himself.

 

Izuku poured his pheromones in small spurts as the shocks of Katuski first orgasm settled into his skin like a hot blanket, his cock twitching hard between his fingers.

 

He kissed over Katsuki's stomach where his release was spread, licking eagerly to get a taste. 

 

"Hah. I'm pissed," Katsuki said from above. 

 

"Why?" Izuku asked, listening but still focused on cleaning up the mess. 

 

Why does Katsuki's cum taste so good?

 

"There's this sick voice in my head," Katsuki growls. "It's screaming at me. Telling me to mate. I hate it. I hate it but I wanna listen."

 

He vibrated there in the nest, his eyes shooting open and wide with vigor. The wave had hardly been settled, Izuku learned.

 

Hands gathered up in his shirt again, clinging to him desperately. "Oh, Deku. Fuck. Come on. Please."

 

Izuku nodded and tugged off his tie, then his shirt, realizing if he didn't remove it surely Katuski would do it for him, and not in a manner that would keep his clothes intact. 

 

He dragged his fingers down smooth, hot thighs, kissing gently at Katsuki's hips. "Shush, just relax," he pleaded. 

 

His fingers touched all around that weeping hole, and the blonde shivered. 

 

"Inside. Come on," he begged weakly, his voice sounding so whinny it was almost like he was on the verge of tears.

 

Finally, like a dream come true, Izuku inserted the first finger. Hot and slick. The sound alone was so lewd, Izuku felt like his mind would explode.

 

"Oh wow, you're wet, Kacchan," he blabbered. "You're producing slick. This quirk is no joke."

 

"Shuddup. Hurry," Katsuki cursed. His hands clasped around the wrist between his legs and guided it back and forth, sinking into the nest with a whine when his urges were finally being fulfilled.

 

Something was inside him. Izuku. He was in him.

 

Only a finger, not enough. 

 

Katuski squirmed. "Need more." 

 

Izuku didn't hesitate to give it to him, inserting two, back and forth in a steady rhythm. It wasn't fast, wasn't hard. Just calculated and controlled, pressing in like it knew exactly where to go.

 

Not enough. Need him. Need his cock. Need his knot.

 

"Deku! Fuck me. You have to."

 

"But Kacchan, I just—"

 

Katsuki raised up, his hand grabbing Izuku's face, threatening to ignite. "You heard me, you alpha bastard. Don't make me say it twice."

 

"Okay. Okay. Just let me—"

 

Katsuki took it upon himself to pull down black slacks so that stupid alpha dick could pop out. If heart eyes were possible, he was sure he would have them bulging from his pupils. Almost immediately his stupid omega heat brain was triggered into the wave.

 

Babies. Knot. Pregnant.

 

"Come on. Hurry. Please! I need it!" Katsuki gasped, feeling like his whole body was a live wire. 

 

Izuku nodded and pressed his cock to that slicked covered hole. He was seriously about to fuck Kacchan. Kacchan was begging for him. His instinct was hard to fight with the blonde spread in front of him like this. 

 

"Deku!" Katsuki shouted, cutting off his thoughts. 

 

Finally Izuku pushed in, both men moaning as their instincts simultaneously eased, only for a moment. He was inside, Katsuki was full. Again that urgency shot through the blonde like a tsunami, demanding for more.

 

Izuku thrusted shallow, making sure it wasn't too much. But it was clear by the softness inside that Katsuki was ready for the taking. His hole was clenching around him, still leaking as he pushed forward with a hearty growl.

 

Katsuki clung to him as if his life depended on it. Shocks of electricity zipped through him when a large cock began to pummel his insides like he had so desperately needed it too. He was rocking with the force of Izuku's thrust, moaning like a feigned with every press. Izuku was crowding him in every place imaginable, his body, his mind. The soft grunts from Izuku as he sunk inside of Katsuki sent signals of want through the temporary omega as they vibrated in his ear.

 

"Oh, fuck. Too—good. So good," Katsuki babbled. 

 

His skin popped with small sparks of explosions, everything feeling like it was out of his control. Izuku never slowed, giving Katuski exactly what he wanted. Needed.

 

"This okay?" He asked with a moan when he felt that hole clench around him as if never wanting to let go. 

 

"s perfect. Harder. You gotta get me...pregnant."

 

"I will. I promise," Izuku said, knowing it was just empty words, anything to settled what must be a deep searing instinct within Katsuki's body. 

 

Izuku dug in deeper when legs intertwined behind his back, making sure he couldn't escape. His hips pushed in hard and pulled out fast before repeating, over and over and over, sending Katsuki into a drooling fit there in the nest. His eyes were vibrating, his stomach full. He felt his cock aching there where it bounced along his stomach, and as if reading his mind, Izuku took it into his hand and stroked in time with those powerful thrust.

 

Katsuki screamed and scratched at a freckled back, letting the pheromones tighten around him like a coffin. He was a spring about to shoot, his tummy clenching.

 

Need him. Need more. Need babies. 

 

"Take me, Kacchan. Take it all," Izuku demanded, unloading into him with one more hard thrust, growling in his ear.

 

"Ngh!" Katsuki came with him, his teeth drawing blood from his own lip as he shivered through his second orgasm. 

 

It washed over him, those bleeding thoughts that continued to antagonize his entire being.

 

Gotta get pregnant from my alpha. He smells so good. Want his babies. 

 

"I feel like shit. This sucks, Deku," Katsuki murmured.

 

Izuku immediately leaned down and wrapped his arms around him, kissing at that scar on Katsuki's heaving chest. Desire still buzzed through him when that smell of sweet candy and smoke coward around him. But worry buzzed louder, pushing past that barrier.

 

"I know," he said softly against the man's chest. "I'm sorry. I wish you didn't have to go through this."

 

Katsuki reached up and scrubbed at his eyes that began welling with tears, choking back his cries as Izuku's scent covered him. 

 

"This wasn't how I wanted this to go," he sobbed. "Us having sex...I wanna make babies so bad right now, my mind...it's gonna fucking explode."

 

"Come here."

 

Izuku scooped Katuski up and shifted them to where he was underneath and Katsuki was on top. One arm stayed firm around Katsuki's back, anchoring him, while the other slid up just enough to cradle his shoulders, thumb resting lightly where he could feel Katsuki's heartbeat thudding strong and stubborn beneath his skin.

 

"You're okay," Izuku murmured. "I've got you."

 

Katsuki's weight settled fully against his chest. His forehead pressed into the curve of Izuku's neck, breath warm and uneven for a moment before it slowly began to steady.

 

Izuku tightened his arms just a fraction, making sure it wasn't trapping the man, just secure. Then, he let his pheromones out slowly. Mint and tea tree spread gently through the space as a clean slate of comfort. 

 

Katsuki's breathing slowly evened out and away from those quiet sobs. He shuddered once, then went slack against him, all that relentless tension finally giving way. His grip stayed tight, though, like he was afraid Izuku might disappear if he let go.

 

Izuku rested his cheek against Katsuki's hair, keeping his scent steady and open. The nest held them close, air thick with smoke, caramel, mint, and clean earth. It was strong scents balanced into something solid and grounding. And Katsuki, overwhelmed in the best way, finally let himself rest in it.

 

"Better?" Izuku asked quietly, his fingers still massaging cool circles into Katsuki's back.

 

"Mhm," was all he was able to mutter.

 

He felt the vibration of Izuku giggle where he lay on his chest, those scarred hands so gentle along his spine. 

 

"You look so tired, Kacchan," Izuku purred.

 

Katsuki raised his head up. The heat hadn't vanished, still tickling at his insides. He hummed low in his throat and pressed his nose back against that scent gland, then licked over the bruised teeth marks he had left there, the taste of led on his tongue. 

 

Without his permission, those thoughts began to linger back into his mind. Not as harsh and forced, but like a cloud, fogging his sanity.

 

Izuku. My alpha. So good to me. 

 

"Wanna...wanna do it," Katsuki whined, his hips starting to grind his pulsing cock against Izuku's stomach.

 

"Wanna keep going? I don't want you to get sick," Izuku warned kindly. His hands dragged through Katsuki's hair making him purr.

 

"Mm, won't. I won't. Please," he begged. 

 

His desperation felt different this time. Weaker, gentle and craving intimacy. 

 

"Okay," Izuku worried. "Do you wanna ride me?" 

 

Katsuki nodded, shifting his hips. Izuku pulled himself out of his slacks again, and Katsuki moaned when he felt that throbbing member bounce against his ass. 

 

He wiggled some more, whimpering when Izuku forced him to stop with a firm grip. "Stay still for me. Just a for a moment."

 

Then, as he found that weeping hole, he shifted up, sinking himself back into Katsuki's pleading body. 

 

Katsuki gasped against Izuku neck when he was full once more. His hands clenched at the blankets of the nest, but Izuku quickly snagged them and intertwined their fingers. 

 

"Good boy. There you go," Izuku guided, letting Katsuki grind to his heart's content and take whatever pleasure he needed.

 

This was all about Katsuki right now.

 

Katuski lifted himself up and stared down at Izuku. Seeing his alphas concern, he picked up his pace, wanting to show him that he was okay. That he could take this.

 

Their hands stay intertwined there in the air, all the leverage the blonde needed to bounce hard and firm against Izuku's hips.

 

"Ha. Yer alpha cock is so perfect. All mine," Katsuki whined, his head tipping back from the pulsing ache inside him. 

 

So full. So tender. His cock dribbled madly against Izuku's belly but neither reached for it.

 

"That's right. Mm, it's all yours," Izuku swore. 

 

Katuski panted and laid back down, pinning Izuku's hands by his head as he shifted back forth on that cock, losing his mind. 

 

"Want you to fill me up with babies, Izuku. Won't you?" He asked. 

 

"I will," Izuku purred. He pulled his hands from Katsuki grip and shoveled up his sides, helping the man shift along his cock. "I'll give you all the pups you need."

 

Yes. Puppies. My alphas going to get me pregnant.

 

Katuski sobbed, cradling into Izuku's neck when those thoughts crowded through him once more. 

 

"Please. Fuck, my head. It hurts," he said.

 

"Sh Sh Sh. Slow. Smell me. Relax," Izuku hushed, releasing pheromones in time with their staggering pace. 

 

"My alpha," Katsuki shuttered. 

 

Lips pressed softly at Katsuki's temple, those scarred hands petting over coiling muscle in comfort. Izuku reached down with a quiet breath and slithered his fingers around Katsuki's cock, tugging at it weakly in time with unrestrained thrust.

 

"Yours, baby. All yours."

 

Need it. Need it. Need it.

 

"Knot me. Please," Katuski pleaded.

 

"Alright, take a deep breath for me," Izuku said.

 

His hand never let up over Katuski's cock, pulling shuttering gasp from his lips with every shift. It wasn't long before Izuku was growling, and Katuski’s ass was being stretched to the max.

 

He cried, twitching against Izuku's chest as he came all over the alphas stomach, all over the knot that filled him up.

 

"You feeling better?" Izuku asked as Katuski breathed steadily against him.

 

He nodded, weak and satisfied. It hurt, but it was everything his body was craving.

 

"Rest," Izuku whispered. "My knot will go down soon"

 

Bakugou drifted into sleep.

 

—

 

His eyes snapped open.

 

Blankets. Pillows. They were all piled up on the floor and tucked around him. The warm sun pooled into the room through the window, a mourning dove chirping on cue.

 

And then there was Izuku.

 

Izuku was curled around him too, awake and petting over Katuski's back.

 

"Kacchan, you're up," he said quietly when he saw those crimson eyes pear open.

 

Katsuki shifted against him, sitting up with a groan. He felt...shockingly good. Not as tired as he would have imaged.

 

"What..." he rasped.

 

"Are you feeling alright?" Izuku asked, sitting up with him, brushing back messy blonde hair from Katsuki's face.

 

"I feel...refreshed."

 

"Really?" The alpha beamed. "That's good, especially after last night. You went through a lot."

 

Then memories hit him all at once.

 

The heat. The nest. The pheromones. Izuku's pheromones. Then Katsuki saw the bite mark on the alphas neck.

 

That was me from me?

 

His face burned hotter than any explosion he'd ever made. He squeezed his eyes shut, jaw tightening as the embarrassment crashed over him full force. 

 

Izuku was too close, his green eyes all Katsuki could focus on. Quickly, Katsuki was grabbing his stupid freckled face and shoving him into the pile of blankets. 

 

"Die, die, die!" He shouted, hoping maybe that would help the nerd bastard forget all about what happened.

 

"Kacchan!" Izuku laughed, accepting the punishment as Katsuki being back to normal.

 

He had never been happier.

Notes:

I know I will for sure be adding to this fic, as these two continue to stay on my mind 24/7. Expect some more chapters in the future!

Notes:

This fic is only going to have four chapters for now, but I might add a few more just for fun smutty creativity purposes in the near future. ∩^ω^∩