Chapter Text
The glow of the TV screen in the dark space paints muted flashes on the carpeted floor, on the piles of pillows and all the sleepy faces.
Shouto has his back resting against the sofa, arms wrapped around the warm occupant on his lap, watching the drama playing on the screen silently. The protagonist is currently engaged in a heart-pounding car chase around the city in pursuit of the criminal.
Time seems to pass by through molasses, sweet, slow and peaceful. Soft green tufts brush against his neck alongside the subtle movement of the omega’s breathing.
“The nerd’s asleep?”
A whisper ghosts against Shouto’s ear and a flash of shocking blond against dark background pops into his view.
Katsuki is staring at Izuku’s sleeping face with an unreadable expression.
Shouto answers equally as quietly, his hand moving up to brush the omega’s hair fondly, “Yeah.”
“Then let’s move him upstairs so these loud extras don’t accidentally wake him up,” Katsuki says and somewhere in the background Hanta whispers ‘we heard that!’. Although Katsuki may appear brash and aggressive to outsiders, he’s anything but to his pack. Of this Shouto knows without doubt. His abrasiveness is a front that Katsuki projects to hide his deeply caring nature and to repel people from showering him with the affection that he deserves.
To respond to Katsuki’s earlier statement though, when it comes to volume level Katsuki is undoubtedly the loudest of them all. He decides against voicing that thought out loud lest it triggers Katsuki’s short fuse to demonstrate just how loud he can be and jolts their poor omega awake, choosing to dip his head in a crisp nod instead.
Thankfully Izuku is positioned conveniently for easy carrying. The omega is facing him so their chests are pressed together, his spread legs straddling the alpha’s lap. Shouto slides his arms underneath Izuku’s muscled thighs to support his weight and carefully leverages himself to stand up.
Katsuki follows his movements and acts as a safeguard in front of him in case he accidentally loses his grip on Izuku. Not that Shouto would ever let their omega fall but he certainly appreciates the gesture.
There’s a collective gasp washing over the pack when it is revealed that the criminal is her love interest as the two of them are leaving.
They trudge their way upstairs silently. Katsuki is a few steps ahead of him so that he can open the door to Izuku’s bedroom as both of Shouto’s hands are occupied. Katsuki prepares the bed with the efficiency of a soldier on duty, fluffing up the pillow and pulling down the blanket.
Once the bed is ready, Shouto gently lays the motionless body in his embrace down. Before completely releasing his quarry, Shouto presses their bodies even closer, nuzzles into green curly locks behind the omega’s ear and takes a deep breath in. Pine, honey and fresh morning dew that make up Izuku’s unique scent signature waft into his nostrils and deep in his lungs. There’s no other scent that calms his alpha more than their omega’s and Shouto is forever grateful that he’s part of this pack. Feeling unusually greedy, he then mouths at Izuku’s neck scent gland and sucks gently, relishing in another puff of pleased omega pheromones that gets discharged at his ministration.
There’s a shuffle at the other side of the bed and Shouto glances up, his mouth still latched on soft omega skin. Katsuki is perched half on top of the mattress and he’s closing in towards Izuku’s other scent gland. Pink tongue darts out and laps at the skin, causing Izuku to release a chirp unconsciously that Katsuki responds with a soft growl. Katsuki’s red eyes look dark when they shift up and connect with Shouto’s own. A couple of seconds pass as both alphas scent their omega, gazes still locked with the other.
Shouto finally snaps out of this peculiar mind space he has unknowingly delved into, where his thoughts went adrift to glittering rubies tucked in the walls of a cool dark cave, when Katsuki breaks eye contact and rises up from the bed. He gives a final soft suck before releasing the patch of scent gland skin he has zealously taken captive with his mouth and gets up as well, careful with his movements so the bed doesn’t jostle as much.
The door clicks shut without a sound. Katsuki turns towards the stairs and Shouto wordlessly follows. Instead of taking the stairs down though, Katsuki is going upstairs.
“You’re not going to rejoin them?” Shouto asks.
“No, I’m fucking beat.” Katsuki slows his steps to a stop and looks at him. “You coming?”
It’s spoken with nonchalance yet there’s warmth spreading through the chambers of Shouto’s chest when hearing the words. It’s a clear invitation. They’ve cuddled plenty of times before during pack bonding sessions in what is lovingly dubbed the ‘pack pile’, but when it comes to his private den Katsuki only lets a select few in it. And Shouto certainly feels happy that he is one of them.
The answer is easy.
Shouto’s feet are already padding against the floor towards the gruff alpha even before his tongue can even formulate a ‘yes’.
The clang of metal against a hard object reverberates across the training ground. There’s wind and dust billowing towards the spectators’ direction from the impact.
“Eat that, Cheeks!” Katsuki howls as he releases his infamous AP shot. This deep in his fighting mind space, it certainly makes Katsuki appear like an insane villain hellbent on destroying his adversary to infinitesimal pieces. No wonder articles are popping out like hotcakes that rated him high on the list of ‘the new generation of heroes that look like villains’.
Ochako nimbly dodges to her right, her quirk nullifying both the weights of her own body and the metal pipe connected to a massive concrete chunk that she’s holding in her hand. Not wasting the opportunity presented to her that blocks Katsuki’s view of her due to his own attack, she powerfully flings the makeshift projectile weapon she has towards him.
Katsuki is ready for the counterattack, and judging from his stance he has even anticipated it. The concrete gets blown by a targeted detonation of his explosion, sending bits of rubble arching towards the spectator seats where the rest of the pack and Aizawa are seated.
“Ah!” Fumikage gasps out when a small rock collides into his shoulder. Shouto, who is at his side, immediately reaches out an arm to give him a protective side hug while keeping an eye on other rocks who might be heading this way.
“Are you hurt?” Shouto asks. His hand reaches down to rub placatingly at the spot on his shoulder.
Fumikage shakes his head and says, “I’m fine. Thank you for your concern, Shouto.” He then focuses his attention back on the fight, his expression turns thoughtful. “Speaking of which, that was an excellent reaction from Katsuki. I didn’t expect him to have prepared another explosion to counter Ochako’s attack.”
Shouto makes an affirmative sound, fully agreeing with his analysis. Compared to his first year, Katsuki has improved leaps and bounds and is certainly shaping up to be a fine hero once he graduates.
He has a deep understanding of his quirk and knows how to hone it to be a formidable weapon, on top of constantly making great efforts to overcome his weaknesses. It’s no secret that one of Katsuki’s biggest shortcomings is his temper. On normal battles he’ll be able to reign it in without an issue, but when the battle drags on and the villain he’s facing is particularly talented in spewing insults aimed to disarm a hero’s composure, then Katsuki will just unravel spectacularly and the tides of the battle will turn 180 degrees to his disadvantage. There have been incidents where this exact development happened, resulting in either the detriment of the pack or innocent civilians.
It’s not like that now. Katsuki still broadcasts an arrogant persona but he’s much calmer on the inside compared to he previously once was. He always has his priorities straight and relentlessly paves a way towards his sworn goal of becoming the number one hero, no matter how arduous it is.
The media loves to highlight on the negatives though, and is especially fond of capitalising the event where Katsuki was kidnapped by The League of Villains. They painted various narratives as to why he got specifically targeted, such as his inherent villainy nature, or the possibility that he actually got recruited during the term of his kidnapping and he was infiltrating the hero networks as a spy.
Katsuki takes all of that in stride, never wavering and never blowing up at the goading of the media. In fact, he embraces it, such as when he found out that he was on the list of ‘the new generation of heroes that look like villains’ he doubles down on his theatrics, playing up the villainous words and acts and all that. Just with everything in his life he’s fully determined to take the number one title in the category. He rebuffs the claim of being an actual villain just by being a commendable hero, saving people after people that will later indisputably view him as their hero and be on his side whenever the world doubts him.
“Bright,” Shouto whispers, eyes never leaving the captivating figure on the battle ground.
Eijirou, who is leaning against the railing at his side, looks at him questioningly. “What? Is the sun bothering you, bro?”
Shouto shakes his head, throwing a smile at the beta to ease his worries.
He has spent years trying to prove that he doesn’t need the power he inherited from his father to be a hero. Just stubbornly denying his fire side, pretending that it never existed. Probably that’s why Shouto feels so drawn to him.
Because Katsuki is determined to prove what he is, not what he isn’t.
Momo reaches into her forearm and there’s the telltale resplendent glow of her quirk. “Here.”
Clutched in her hand is a pair of dark-tinted sunglasses. Shouto looks at the offered item and says, “Sorry, but I don’t need it.”
He shifts his gaze towards the center of the arena once again.
Katsuki is like a sweltering star, unapologetically exuding his light until it consumes all the shadows around him and even turns away people afraid of such a bright light. Shouto doesn’t want to ever look away from it though.
This angel of destruction that shines even brighter than the sun.
With years of abuse under the guise of ‘training’ by Endeavour, being pinned down by an alpha used to elicit a violent reaction bordering on terror out of him.
It oddly doesn’t with Katsuki. Shouto in fact quite enjoys feeling Katsuki’s weight pressing down on him and being scented by the other male alpha.
It probably helps that during such instances where he is put in a more submissive position Katsuki never completely takes away his mobility. There’s only gentle pressure that Shouto can easily break free of if he wants to. It feels inexplicably nice to give control to another person without his danger senses pinging frantic alarm in his head, just the comfort of closeness encompassing his senses. Never in a million years had he imagined he would willingly succumb to another alpha’s embrace and feel nothing but safety and peace.
Despite their early clash, they spend quite a lot of leisure time together now. Such times are often thinly disguised as challenging each other to competitions, a front and formality that is more for the sake of Katsuki’s pride to broadcast the fact that he will never willingly spend a second in the vicinity of ‘shitty Half-Half’.
Like who can finish the ice cream first (Shouto didn’t tell that he took advantage of his fire quirk to quickly melt the ice cream in his mouth while Katsuki was left battling brain freeze by sheer determination alone) which Shouto took the liberty to label as an ice cream date in his memory (what Katsuki doesn’t know will not hurt him). Or that one time where they ventured to the mall to look for Kyouka’s birthday gift, and Katsuki issued the challenge of who could find the best item that will make Kyouka ‘die from fucking happiness when she receives it’. They didn’t talk about the matching hero-themed keychains they purchased that day on top of the aforementioned birthday gift, one that is now safely secured to Shouto’s bundle of keys that he takes everywhere.
“Ha! I win!”
Slumping slightly from his tense position, Shouto gives him a dirty side-eye. “By cheating.”
They are sitting next to each other in Katsuki’s room, their sides pressed together. A recent favourite pastime of theirs is playing various console games that Katsuki has brought from his home to his room here in U.A. dormitory. The activity is of course competition-based, which Katsuki approves of, and highly enjoyable on top of being relaxing, which Shouto likes. Growing up in a strict patriarchal home has robbed him the opportunity to experience things that have nothing to do with honing his heroic skills, so now Shouto is determined to enjoy it the best he can, without any fear attached.
Katsuki just throws him a cheeky smirk. “Not fucking cheating, it’s called finding loopholes in the game mechanics, idiot. I’m not as straight-laced as your ass.”
Shouto scrunches his lips as he uses every fiber of his facial muscle to visually convey his displeasure to the other alpha. Whatever excuses Katsuki spewed out, glitching out the map to teleport his avatar a quarter of the way forward and completely skipping the slime swamp is cheating.
As if that isn’t aggravating enough, Katsuki then hunches into himself and dissolves into an uncontrollable laughter.
“Pff… are you seriously pouting?” he wheezes, his whole body shaking with the force of his laughter, a hand slapping a knee repeatedly.
Shouto’s pout deepens and then following his immediate instinctive urge, pounces at the infuriating alpha. They grapple for a while, growls and snapping of bared teeth are the dominant sounds that echo in the room as both alphas try to make the other submit. He successfully manages to leverage a knee diagonally across Katsuki’s stomach and chest for maximum disarmament, and uses both hands to snatch and bind Katsuki’s wrists as he presses his whole weight into the blond. Shouto is positive he has this under control but then Katsuki’s lower half lurches up and toned thighs wrap around his waist like unyielding steel ropes and flips him over in one powerful snap of a split-second movement. His back slams against the floor audibly and finally an insistent weight bears down on him, barely leaving him enough space to suck in a shocked breath.
That’s… Shouto blinks, wide heterochromatic eyes locked at the smirking alpha on top of him… Unexpected. At the same time, he acknowledges that he shouldn’t have ascribed common expectations on an alpha of Katsuki’s caliber. If there’s one thing Shouto knows about him is that no one can keep Katsuki down for too long. He’ll find a way to come out on top.
There’s a red-eyed beast assessing his body with fiery hunger, a hand packing the power that can explode his head cleanly off his shoulders encircles his throat. And Shouto is completely at his mercy. “Well well, aren’t you pretty like this? Panting and helpless under me?” Katsuki purrs, his hand that is seizing Shouto’s throat tightens minutely to put weight on the implied threat.
Of course it’s all just talk, he’s not ‘helpless’ as Katsuki put it, a quick assessment of the situation assures him that he can break out of Katsuki’s hold in under a second but still, the words send an involuntary shudder travelling down his body. Like falling down a cliff, knowing he’ll safely land on his feet but not having a clue of what’s under there. He feels exposed in a weird yet admittedly pleasant way. Shouto takes a dry swallow, feeling his Adam’s apple rolling against the press of Katsuki’s heated palm.
Shouto also feels his alpha rising up to the challenge, sharpening his resolve. Fine. If this is how Katsuki’s going to play he isn’t the only one capable of fire.
A purr builds up deep in Shouto’s throat, soft and sweet, and not intended to dominate. Followed by a calculated release of inviting pheromones primed to drive the alpha pinning him down crazy, a little pup with a daredevil spirit goadingly nips at the snout of this giant, impatient, hungry beast.
“So? Are you only going to stare at this pretty thing?” Shouto purrs with a tone laced with sinful honey, letting his eyelids fall to half-mast.
Shouto also makes sure to control the pitch of his voice to emulate what Katsuki has remarked previously as ‘pure filth’. He will drown Katsuki in this so-called filth until he chokes. Shouto knows he’s treading on dangerous grounds, he has never pushed Katsuki this far before but if it’s one thing Shouto isn’t is a spineless alpha that back downs from a challenge.
Katsuki’s entire demeanour darkens. The pressure around his neck increases, a thumb particularly digging at his scent gland until a choked whimper tumbles out his mouth unbidden.
“Pretty chatty, aren’t you? You might get fucking burned if you’re not careful.”
Before Shouto’s brain can even scramble to put together a barely appropriate response, there’s a mouth pressing on his own followed by an insistent tongue prying it open. Shouto allows it, his brain is thoroughly overwhelmed by the attack but welcomes it nonetheless.
“Damn look at you, I can just fucking eat you whole,” Katsuki growls out after he has viciously mapped out the entirety of Shouto’s own mouth, tongue retracting audibly against saliva-slicked path.
Shouto can only summon a small whine to respond to it, there’s heat lacing through his stomach and further downwards. Katsuki doesn’t stop there, his wandering mouth moving to Shouto’s neck and seeking out his scent gland like a man starved. As an alpha Shouto rarely has someone exploring this particularly private area, not because of his projected reluctance due to some kind of a misplaced sense of alpha superiority, but because a beta or an omega is naturally more content with taking a passive role when it comes to scenting. But Katsuki is another alpha and has no qualms about absolutely devouring his scent gland like it’s a full course meal, jaws knocking into the soft area of his neck and opening it up as if he owns the place. With how foggy his mind feels currently at the dominating ministration, Shouto admits Katsuki kind of does. Own him that is.
Two hands slip inside his shirt and tug the material up. Only then does Shouto realise that his wrists are freed out of their binds and are idly resting against the carpeted floor. He lets Katsuki take off his shirt and once it is out of the way Katsuki descends on him again and claims his mouth in a heated kiss. Amidst the oral assault that makes his head spin pleasantly, Shouto vaguely registers his legs being guided to wrap around Katsuki’s waist.
Katsuki’s two hands slither around Shouto’s back in a snug embrace. Their connection is broken momentarily when Katsuki draws his lips back, and Shouto can’t help but let out a little protesting whine.
“Let’s move to bed?” Katsuki murmurs, expression uncharacteristically soft as he gazes down at him. There’s barely space between their faces and Shouto likes the intimacy of it, when just a year prior Katsuki would have given him the stink eye were he ever got too close to him, and promptly barked out his displeasure so that Shouto would make himself scarce or simply leaving.
Shouto lifts a hand to caress Katsuki’s exposed collarbone, longing for the black tank top to be gone so that he’ll be able to touch Katsuki more.
“Yes,” he breathes out.
He is lowered carefully down on the mattress. Honestly he wouldn’t mind if they continue on the floor but the bed is admittedly softer and more comfortable compared to the hard floor.
“Yours too,” Shouto says, barely repressing his impatience as he tugs at Katsuki’s black top. Katsuki obliges and even puts on a show as he proceeds to undress slowly, his ample muscles flexing for maximum mouth-watering induced effects. Shouto is only capable of marvelling at the sculpted torso and abdomen, skin that seems to glisten like polished gold. Truly Katsuki is a work of art.
A smile that is all teeth flashes on the handsome blond’s face. “You’re drooling, idiot.”
Feeling like a cat caught with its paw inside the aquarium, Shouto quickly runs the back of his hand across his mouth and finds nothing.
“Stop teasing me,” he grumbles.
“Nu-uh never. You’re prime teasing material and it cracks me up how you’re so stupidly gullible. Reminds me of that one children's fairytale,” Katsuki says while petting the red part of his hair. While his words are pure snark, his gesture is a fond, familiar warmth. Shouto doesn’t feel the least bit attacked by it.
Shouto huffs out a laugh. His hands snake across the back of Katsuki’s neck and pull him in. “Am I supposed to be the unsuspecting Little Red Riding Hood and you the big bad wolf?”
There’s wickedness popping in the volcanic embers of Katsuki’s red-hot irises, a pit of lava-madness that will drag him down under, a promise of scalding seconds that last lifetimes.
“Like I said, I can and will eat you fucking whole, little bastard. When I’m done with you not even your bones will be left,” a growl followed by a harsh nip to his exposed shoulder.
And Shouto never wants anything more in his life. The images that materialise in his dirty (oh so dirty) mind of Katsuki tearing him apart, separating flesh from bones and devouring both indiscriminately turn him on like nothing else. His alpha is properly cowed, tail between trembling hind legs prompting a submissive whimper to escape out of tightly-gritted teeth.
He’s trying to regain his composure but Katsuki won’t have that. Wicked tongue laves against every inch of exposed skin, from the abused spot on his neck and down to his collarbone, chest and ending on his pert nipple. It’s like an electricity coursing through his entire body when those sinful lips close around the sensitive bud and suck. Shouto struggles to take in a ragged breath, only to have a full whiff of pure alpha pheromones assaulting his olfactory senses and numbing the higher functions of his brain, he’s like a helpless all-you-can-eat buffet for a greedy alpha.
Those wandering hands are relentless in their exhaustive exploration on the planes of his body, like mapping out a foreign territory to be claimed as rightful property. He twitches when a wayward hand brushes against the tent on his pants, a harsh moan spilling out unbidden when that same hand grabs his cock with firm purpose.
“Look at this, someone’s excited,” Katsuki chuckles, his own blown-wide scarlet pupils a clear indicator that Shouto’s not the only one affected by this, “I’m gonna make you feel so fucking good, sweetheart, that you’ll think of me whenever you get this thing up. Ready yourself for the best death ever, scum.”
Shouto lets out a huff, struggles to get his voice even while being bombarded by the waves of pleasure he’s unaccustomed to, “Y-You are being awfully contradictory, is it sweetheart or scum?”
Despite his best effort, all his half-formed thoughts scatter when he feels Katsuki’s hand wraps around his cock in a confident grip. Then starts to jack him off. Shouto supposes he ought to feel embarrassed by all the sounds he is letting out if he isn’t busy holding all his cells together from combusting spontaneously. He hastily makes a brief check that it isn’t happening now, and that his fire quirk isn’t discharging out of its own accord and potentially burning Katsuki.
Once he spills his load and his brain blacks out for one blissful second, Katsuki moves his fingers lower to ghost against his puckered hole. Shouto shivers in anticipation.
“You up for it?” Katsuki whispers.
Shouto nods. He guesses this is where he should feel nervous but there’s no hint of it. A memory that triggers a twinge inside his chest pops up unexpectedly, featuring Endeavour with all his tirade about how a respectable alpha should behave and all manners of dominating traits that Shouto should unfailingly project to the world. It’s his duty as a son and an alpha. But all that crumbles down when Shouto looks up to the alpha above him. Such a sweet, sweet and gentle alpha. This is it. Taking this last step seems like a natural progression of their relationship, and one that Shouto yearns for badly.
“Say stop and I’ll immediately stop, okay?” A squelch of liquid, and coolness that rapidly warms is being rubbed tentatively against his asshole. Shouto rolls his head to the side, overwhelmed at the stimulation, eyes tightly squeezed and making a vague movement that might pass as a nod. He figures Katsuki is distracted enough to not look at his embarrassing reactions too closely, and catalogue it for future teasing material.
The sensation of his chin being grabbed and positioned to look straight up is not something Shouto expects, leaving him to stare wide-eyed at Katsuki. Katsuki is scowling, the lines of his facial muscles clearly showing disapproval. Shouto wonders if he did anything to displease Katsuki, his inner alpha whining for him to correct the situation pronto.
“No. Look at me and say that you understand. Say stop whenever and I’ll immediately stop, okay?”
Confused, yet calmed when he’s supplied with the solution on how to rectify the situation, Shouto does as he’s told and makes sure to enunciate his words as clearly as possible, “Yes, I understand,” then fumbles to grab Katsuki’s wrist to press his fingers more to his aching entrance, “touch me now, Katsuki. Please.”
Shouto doesn’t care how desperate he sounds, all that matters is for Katsuki to plunge him further down the depths of delicious torture until he’s all deprived off air, barely surviving. Finally. A digit is making its way inside in a torturous pace, his walls clenching down hard at the intrusion.
“Relax,” Katsuki says, “Trust me, Shouto.”
As if the words are magic, Shouto feels his lower muscles that he doesn’t even realise are all tensed up to relax gradually, allowing for an easier slide deep inside. It’s quite weird to have something intruding that area of his body but not all that unpleasant, and Shouto is ready for more.
Two fingers are inside him now, he’s purring out his contentment as his alpha is properly attending to his needs when those digits brush against something that causes bursts of light to pop under his eyelids. Shouto releases a startled blend of a moan and a yip, blinking rapidly in wonderment.
Katsuki wears an expression as if he’s won a lottery ticket, or that savage self-satisfaction of having defeated his foes on the battleground. “Here?” he says as he applies more pressure sliding against that spot. It just feels so undeniably good , more precum dribbling out his neglected cock and Shouto whines in pure want. All the discomfort’s gone, leaving pure pleasure for him to enjoy and to demand for more.
“Yeah yeah you impatient bastard. Don’t worry I’ll stuff your hole as deep and with as many fingers as you want.” Three and Shouto just can’t settle for only fingers anymore. They have shared kisses and touch each other with the intent of chasing bodily pleasure fully-clothed before, but never have they progressed this far. Yet Shouto has no reservations left or even a shred of abashment. Heady prime alpha pheromones are clouding his senses, making his mouth water as if a starving beast presented by fresh meat. He wants everything. How and since when did he become such a needy and lewd creature like this?
Summoning strength to his jelly-like limbs, Shouto yanks Katsuki’s head towards him and smashes their mouth together for a sloppy, teeth-clashing kiss. Staring into dilated pupils encircled with thin rings of red, he purrs out, “Your cock. Please inside me. Now.”
Katsuki thankfully knows that now is not the time for teasing, finally pulls both his pants and underwear out of his legs. Shouto drinks the sight of pale muscular thighs greedily and the trail of even paler blond hair adorning his Adonis belt, even thicker under. The tasteful shape of his fully-hard cock, in such a pretty colour. Oh the size of it. Katsuki will surely rearrange his guts with it while trying to stuff it balls-deep inside his tiny asshole.
There’s a skrrk of plastic wrapping being ripped open, and much to Shouto’s dismay he sees Katsuki holding a condom to lower down his cock.
“No condom,” he blurts out, his lips shaping to a pout involuntarily. Shouto doesn’t know why but the idea of that piece of rubber barricading Katsuki’s pretty cock from sliding directly against the walls of his asshole just upset him.
But surprisingly Katsuki shakes his head, continuing with rolling the condom neatly down his cock. “It’s your first time and I want to lessen the possibility of upsetting your stomach as much as possible. Next time when we get more practice probably we can try not using condoms. For now it stays on, ok?”
Although male alphas can’t get pregnant, there's a sound reason behind Katsuki’s statement. And it should be in Katsuki’s instincts as an alpha to want to ejaculate semen directly deep in his partner. At times like this Shouto wishes that Katsuki can be more inconsiderate.
Katsuki visibly hesitates, and is there a blush on his face(?) “So how do you wanna do this? I heard doing it from behind is the easiest position for the first time…”
Although the idea of getting on his hands and knees for Katsuki does appeal to him, it's overwhelmed by the stronger desire to be face to face. He wants to be able to see Katsuki closely.
“Like this,” Shouto murmurs, hugging Katsuki closer with both arms.
“Okay.”
There’s a pillow being slipped under his lower back, and Katsuki hikes both Shouto’s legs to wrap around his waist.
“Ready?” Something blunt bumps against his slicked hole and Shouto never feels more than ready. He huffs out an impatient growl, hoping that it’ll rile Katsuki’s inner alpha to do it already instead of treating him like some kind of delicate glass.
Katsuki easily obliges as he slowly coaxes his hole to open up with thick cock. And by all gods, it is thick. He feels stretched beyond belief, a split second of ‘impossible’ flashing across his mind. Shouto refuses to bend under the doubt and urges Katsuki to get it deeper. And after long excruciating seconds, at last Katsuki bottoms out.
Ah this feeling of being full, Katsuki snugly filling the empty spaces inside him. It doesn’t hurt, just feels a tad bit foreign since he never has a cock up his ass before. There’s joy sprouting in the fluttery cores of his stomach, where there’s Katsuki safely stored inside and keeping him nice and full.
Brief seconds pass before Katsuki starts to slowly move, seemingly to test the give of Shouto’s pliant opening against his hard cock. There are pleasurable jolts that light up his nerves each time Katsuki moves a certain way that keeps building up the more Katsuki speeds up, gaining confidence in his thrusts, deeper and harder.
Shouto’s breath stutters with each rocking thrust, riding the waves of mind-numbing pleasure. “Ah… A-Alpha…” he breathes out, “More please, don’t s-stop…”
“Yeah I’m your goddamned alpha,” Katsuki croons. His facial expression betrays his soft voice though, a predator getting ready to rip his prey apart. The sensation of being pounded within an inch of his life as if Katsuki is practically fucking the sanity out of his mind is just ecstasy, pure addiction he thinks he can’t live without.
“How does it feel like to be fucked by another alpha? Hm?”
“Go-good, uuunnh… since it’s y-you,” Shouto barely gets out, mind swirling and body assaulted by this red-eyed ravenous beast intent on wrecking him to pieces. He wants to drag this moment to last forever, just like this, Katsuki entering him again and again and carving a fine brand of his shape deep inside his walls.
The last string of his self-restraint snaps when there is pressure wrapped around his cock, coming so hard until there are black spots dancing in his vision and white static in his brain.
“I'm c-close…!” is Katsuki’s ragged warning as he rams in his cock one, two, three times before stilling inside. A warm weight slumps on top of him as Shouto struggles to regain full consciousness.
Through the blissful fog in his mind, Shouto pulls Katsuki in closer with both arms and legs. He’s panting as if he has just cleared one of Aizawa’s rigorous hurdle courses, even though all he did was basically laying down and allowing Katsuki to pound into him. That pleasant sense of fullness is still there and Shouto relishes in it. But then Katsuki makes a tugging motion as if to pull out and Shouto responds with a small protesting sound.
There’s sweat beading on Katsuki’s forehead and wetting his temples, and bewilderment in his expression. “I’m stuck,” Katsuki says, “It’s my knot.”
Shouto blinks, seeing no problem in what appears to be Katsuki’s newfound predicament. “Oh,” he replies. Alphas have knots that inflate at the point of climax to lock themselves inside their partners and ensure cum is properly injected. It’s basic biology, so their current situation is natural isn’t it?
The look of disgruntled puppy on Katsuki’s face prompts him to let out a small laugh. Annoyed red eyes glare at him, followed by a growl, “What’s funny?”
“Your entire existence,” Shouto who of course doesn’t waste the opportunity presented before him to tease Katsuki, merrily continues, “and your sex techniques.”
Katsuki snaps his teeth at him while his hand snags some tissues by the bedside table, wiping down Shouto’s release that is streaking across both of their stomachs, “Fucking stop spouting bullshit. Admit it, that was the best sex you’ve ever had in your life!”
“Well, considering it’s my only one it’s hard to make objective comparisons. I suppose it’ll rank somewhere under ten.”
“Fuck that! If it ever gets less than number one you’ll get fucking railed by me again and again until the proper ranking is reinstated, understand?”
Shouto sighs and makes a sad face. “It’s bumped down to number two now for foul attitude.”
“Ha???” Katsuki rages, fire in his tongue. “That’s it you scum, get ready for round two!”
“Sure, once you get your knot to calm down,” Shouto agrees easily.
“Shitty Half-Half that doesn’t think before blindly jumping into someone’s rescue is afraid of some knot sex? Weakling.”
“And you’re very charming yourself,” Shouto says, then captures Katsuki’s lips in a slow kiss. The game on the TV is still blaring bright on its finish screen, both wolf and vampire avatars waving in an animated loop with smiles on their faces.
“Heh, I sure am.” Is murmured against the smile perched on his mouth.