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Haunted

Summary:

"Fuck, when I think about it, he could have been the one ramming the cock down your throat”, Kiyoomi whispered, running one hand through his locks while the other hand kept Atsumu's head in place.

Atsumu closed his eyes and a small tear ran down his cheeks as he began to move his head back and forth. His own cock was now so hard that it started to hurt and hix boxers must have been soaked with precum by now.

Kiyoomi hummed, put both hands on Atsumu's head and grabbed this hair thight. “I'll ruin you for him. I'm gonna fuck you so hard you never want anybody else anymore, got it, Miya?”

 

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Or: Atsumu flirts with Kita. Kiyoomi does not like this at all.

Notes:

Hiyaaaa welcome!
Got nothing special to say, just that I'm re-reading some of my fave fanfics like Careless Whispers from Pawtiful and I totally forgot what an asshole Kiyoomi is the first half of this fanfic so I got inspired by my own lil asshole kiyoomi who gets jealous bc hell yeah!

(See the end of the work for more notes.)

Work Text:

Oh, Kiyoomi is so fucking wasted.

How did he know? By the fact that he couldn't take his damn eyes off the blonde setter from his own team.

And if you're wondering what the problem with the whole thing is, Kiyoomi could actually write it down for you in chronological order at various intervals. But he wouldn't do that because he was far too drunk.

To get back to the real problem; Kiyoomi wasn't just drunk, he felt terrible. Not the normal headache terrible, but the oppressive feeling that spread through his chest like a heavy oily filter. Like someone would crush his heart with an iron fist, but somehow worse.

Actually, he had an objectively good day. They had just played the last game of the season against EJP Raijins, so he should feel amazing. They won the season and he beat his cousin with his stupid eyebrows. The entire teams of both teams had squeezed into this far too small izayaka and every now and then one of the players bumped into Kiyoomi's shoulder, probably more by accident than design, but it still annoyed him. But his day wasn't that bad until now.

His gaze flew across the room, scanning the familiar people of both teams.

Meian was standing at the bar, the captain of the Raijins next to him, Barnes and Tomas both had a drink in their hands and were laughing at something Meian said.

Inunaki, Hinata and Bokuto were one table away with two other Raijin players, almost shouting their heads off as Inunaki tried to balance a small shot glass on his forehead and Bokuto, as always full of vigor, wanted to copy the whole thing and Hinata - the ever-supportive Hinata - thought it was a great idea and supported his teammate by shouting loudly. Kiyoomi was now on the verge of a migraine.

In another corner, Miya2, Atsumu's brother, and Suna Rintarou were licking their faces. It wasn't something Kiyoomi wanted to see by choice, though he had to admit that both of the men were objectively quite attractive. So he lingered a little bit longer. Just a tiny bit.

His own cousin, however, had left him alone to go to the restroom 3 minutes ago and Kiyoomi was now doing what he did best; glaring at people. It was a gift he had acquired at a young age.

His gaze continued to wander and then finally lingered on his biggest problem in his life right now. Miya Atsumu. The bane of his existence.

The blond was sitting one table away, in a corner, and normally Kiyoomi wouldn't have minded, but today was different. Normally, Kiyoomi wouldn't even mind, because Atsumu wasn't someone who usually left Kiyoomi alone. Most of the time, the blond ran after Kiyoomi everywhere to disturb him, to bicker with him, hell, even to flirt with him, which had been Atsumu's favorite pastime ever since Kiyoomi had joined the MSBY Black Jackals. And Kiyoomi would have preferred to have all his fingernails ripped out one by one instead of admitting that for once it bothered him that the setter wasn't with him right now to annoy him (or flirt with him). Just for the record.

So why was Kiyoomi so pissed off that Atsumu wasn't next to him today and chewing his ear off?

Simple. Kita Shinsuke.

The former Inzarzki captain had of course not missed the last match of his former team.

Kiyoomi himself had seen him maybe once or twice so far since he joined the Jackals, mostly from further away, and hadn't paid much attention to him, because why should he? He was neither a threat on the pitch nor in his private life. So why did it bother KIyoomi so much that Atsumu almost sat on Kita's lap? Why should he care?

So why was his chest all tight and he felt all warm, his skin prickling under his hair?

Kiyoomi watched with a furrowed brow as Atsumu laughed out loud at the other table because of something probably really funny (not) Kita had said. The former captain laughed too, but not as loudly and attentively as Atsumu himself, his lips curled into a small smile and Kiyoomi saw Atsumu lean into the other man, his shoulders touching him and their faces moving closer - not dangerously close, but in a way that still passed for good friends. But Kiyoomi knew Atsumu. No matter how much he didn't want to admit it, he knew the blond by now, given he had to spent almost every day with him, playing with him, even living in the same goddamn complex as him. So yeah, he knew Atsumu. He knew when Atsumu had picked someone out at a party in the evening, flirted with him or her until he got what he wanted. Normally, Kiyoomi didn't seem to mind so much, so why now?

The black-haired man's gaze darkened as he watched Kita take a sip of his cocktail, put the glass down and run his tongue over his lips - Atsumu's gaze followed his tongue.

Kiyoomi breathed in and out deeply, felt his scalp begin to tingle and took a sip of his gin himself. It shouldn't bother him. It was none of his business. Why was he even looking over at them?

But there was something about the way Atsumu interacted with others that Kiyoomi couldn't shake. Was he always flirting like this? Weöl, Of course he was, it was Miya Atsumu after all who he was talking about. He even flirted with Kiyoomi, but the black-haired man hadn't responded once since joining the Jackals. Why would he? Atsumu followed him around like a little puppy no matter what Kiyoomi did, even if he didn’t play his stupid flirty games or even be nice to the blond.

Call him an asshole, but he knew he didnt have to be nice to Atsumu Because no matter what he did, Atsumu would follow him again and again like a lost puppy.

That was just their dynamic. So maybe, just maybe, that the reason why Kiyoomi was so pissed. Why did Atsumu not follow him tonight?

With half-clenched eyes, Kiyoomi watched as Atsumu tilted his head, a few of his blond strands falling into his face, still smiling at his former captain, and Kiyoomi would have liked to get up, pull Atsumu away from Kita and brush those stupid strands out of his face. Fuck.

Kita seemed to be thinking the same thing as Kiyoomi, because suddenly the older man leaned forward, raised his hand and actually brushed the strands of hair from Atsumu's face. And the worst thing was that Atsumu's cheeks turned pink as a result. Pink. Atsumu was fucking flushed.

Kiyoomi could blame it on the fact that it was far too hot and stuffy in the izakaya, but he knew for sure that wasn't why. He saw Atsumu's eyes widen a little, he automatically leaned backwards, his cheeks turned pink and he nervously played around with his fingers - a habit that Kiyoomi didn't often see. Usually it was when something happened that Atsumu hadn't expected. Like apparently at that exact moment. Apparently, he hadn't expected Kita to touch him - that Kita would flirt back. And that was exactly what bothered Kiyoomi, because he would never have thought that Kita would look at his former classmate like that. What the fuck was going on here?


Kiyoomi's gaze grew darker, his chest grew heavier and the icky tingling on his scalp still hadn't stopped when a shadow passed him and Motoya plopped down next to him with a new glass of Sex on the Beach.

“If you keep looking like that, you'll get wrinkles.”

“I'm not getting wrinkles,” Kiyoomi said dryly, took a sip of gin and continued to stare in the direction of Atsumu's table.

Motoya eyed his cousin critically, followed his gaze and raised his quizzical eyebrows. “Where are you looking?”

“None of your business.” Kiyoomi wasn't even trying to be nice anymore. Motoya knew him, he knew he didn't mean it.

The Libero huffed and leaned back. “Why are you staring at Atsumu like he killed twenty puppies?”

“I-what?” Kiyoomi forced himself to avert his gaze and look at his cousin with a raised eyebrow. Only now did he realize how tense he was. He breathed in and out deeply, the knot in his chest barely loosening. “I'm not staring at Miya.”

Motoya took a sip of his strange cocktail and rolled his eyes. "And I won against you today. Those are both lies, Kiyo. And we both know that, even though I really would have liked to win against you."

Kiyoomi pursed his lips and turned his gaze forward again, where - whether he wanted to or not - he looked back towards Atsumu and Kita.

Atsumu leaned forward and took a big sip of Kita's cocktail through the straw, and the hairs on the back of Kiyoomi's neck stood up. Indirect kiss. Disgusting.

Their shoulders brushed against each other again and Atsumu leaned forward to whisper something to Kita over the music in the izakaya.

"Hello, earth to Kiyo? If you ignore me, I'm going to Suna. At least he wants to talk to me…" Motoya waved his hand up and down in front of Kiyoomi's face and the black-haired man huffed.

"Good luck with that. He's about to get his face sucked off by Miya2."

Motoya laughed briefly and nodded. "Well, at least someone's having fun. Although it looks like Miya 1 - or whatever you call Atsumu - is having fun too. Isn't that his former captain?"

Kiyoomi swallowed hard, his mouth now dry from the gin, as he followed Motoya's gaze towards Atsumu. Kita and Atsumu had their heads very close together by now, Kiyoomi could see how drunk Atsumu was even from further away, how glassy his eyes were as his gaze kept sliding towards Kita's lips. Fucking hell.


Heat rose in Kiyoomi and he bit his lips. “I swear I'd kill Miya if he starts something now,” he whispered more to himself than to his cousin, but of course - as always - he had heard.

"Mh? What do you mean? Oh my god, wait, Kiyo. Is that what I think?" Kiyoomi's gaze darkened as he looked at Motoya.

“What do you mean, Toya?”

The libero began to grin, it was the grin that Kiyoomi had hated since he was a little kid. Motoya always grinned like that when he had convinced himself of something totally stupid and wanted to convince Kiyoomi of it. “Are you jealous?”

Kiyoomi's fingers tightened around his glass of gin and he had to pull himself together not to throw it against the nearest wall, then he laughed out loud and looked at his cousin as if he had gone mad.

"Jealous? About what, Toya?"


“Kita.” His cousin nodded towards Atsumu and his former captain.

“Whatever strange pills you took, you should take less of it,” Kiyoomi returned coldly, shaking his head. A dark curl fell into his forehead.

Motoya just shrugged with a grin and leaned back. "Sure, Kiyo, just tell yourself that. I've seen you jealous twice in my life. Once when I got the new volleyball for my birthday and once just now. Both times you looked like you wanted to kill someone."

Kiyoomi huffed again and took a sip of gin. The alcohol tingled on his tongue, he licked his lips and then several things happened at the same time.

Somewhere further back, Hinata screamed so loudly that Inunaki was apparently scared to death and a glass shattered.

Motoya also jumped up in shock, but Kiyoomi remained rooted to the spot, because the moment the noise rang out, many seemed to suddenly sober up a little, but that was not the reason why Kiyoomi remained seated.

His gaze was still fixed on Atsumu and Kita, Kita leaned forward, Kiyoomi saw Kita's face disappear behind Atsumu's and the rice farmer seemed to want to whisper something in the setter's ear. And right at that moment, Kiyoomi and Atsumu's eyes met.


The blond's brown eyes were half closed, a sign that he was either flirting or had had too much to drink - probably both - and yet they seemed to become crystal clear the moment they met Kiyoomi's gaze.

A shiver ran down the black-haired man's spine as he held eye contact, Atsumu looking at him as if challenging him to a silent challenge that only the two of them understood and no one else in the room.

Then suddenly, Kiyoomi saw Kita raise his hand, place it on Atsumu's neck and squeeze lightly. Atsumu suddenly leaned his neck backwards and only now did Kiyoomi realize that Kita was about to kiss the other side of his setters neck.

Mine.

Kiyoomi felt the heat boil up inside him, watching Atsumu close his eyes briefly, because now it was quite clear that Kita was kissing him in the crook of his neck and Atsumu was actually enjoying it. Then the blond opened his eyes and looked straight back at Kiyoomi again.

It struck Kiyoomi like a bolt of lightning, the fact that Kita was kissing Atsumu on his skin while the blond continued to stare at Kiyoomi as if he was just waiting, just hoping for Kiyoomi to react in some way.


The next day, Kiyoomi would have probably blamed it on the alcohol and endorphins that came with such a great victory, because what happened next was definitely not something Kiyoomi usually did.

He loved to have plans; he was not spontaneous in any way and anyone who knew him for more than a day knew that he hated it when something unforeseen happened.

But his body seemed to act automatically. He stood up, saw out of the corner of his eye how Motoya looked at him questioningly and probably asked another question, but Kiyoomi's gaze was like in a tunnel. His ears were as if wrapped in absorbent cotton, his gaze focused only on one person in front of him, his goal clear. Miya Atsumu.

He had bridged the distance between them in just a few steps and was now standing in front of Atsumu and Kita - Kita, who still had his lips pressed to Atsumu's neck, and Atsumu, who was now looking at him with wide, brown doe eyes. He leaned backwards and cleared his throat, a clear signal to Kita that he should stop.

The former captain leaned also backwards, only now seeming to realize that Kiyoomi was suddenly standing in front of the two of them.

Kiyoomi's chest rose and fell irregularly, as if the three steps had taken a lot out of him and he had run a marathon, his gaze fixed on Atsumu, the blond's eyes wide and questioning like a deer in headlights at his teammate.

Kita was the first to get a hold of himself and say something. “Sakusa?” It was a cold statement, a question that implied more than just his name. It was a warning, a boundary that Kita was hereby setting up, that Kiyoomi shouldn't dare take one more step and disturb him and Atsumu.

“Kita.” Kiyoomi replied dryly. His gaze was still fixed on Atsumu, almost completely ignoring Kita.

But Kita seemed to be the bigger person of the two, he seemed to have more manners than Kiyoomi - which was obvious, of course. Kiyoomi wasn't known for being nice, he was known for being straightforward and stubborn, not smearing people with honey first.

“I need to talk to Miya.” It wasn't a question he threw into the room. It was a request for Kita to fuck off and for him to never touch his Atsumu again.

"Omi? What's up?" Atsumu asked, his voice a little hoarse and it went through Kiyoomi like a bolt of lightning, the second time that evening.

Mine.

Only now did Kiyoomi realize that Kita's hand was on Atsumu's thigh under the table, that he had placed his dirty fingers on Atsumu's jeans and was apparently still holding him so tightly, as if he was afraid that Atsumu would jump up at any moment to leave him.

Kiyoomi inhaled sharply. “I need to talk to you, Miya.”

“I'm a little busy right now,” Atsumu said - of course he said it. He'd always been cocky and a brat, normally to get a reaction out of Kiyoomi, but both MSBY players knew this time was different. It wasn’t only about a reaction from Kiyoomi, there was another man right next to Atsumu, another man that seemingly wanted to touch what was Kiyoomi’s.

"I don't care about that. Come on." Kiyoomi said and without thinking about it, he grabbed Atsumu's arm with his hand and pulled him to his feet.

Kita and Atsumu both seemed to be awakened by the quick movement. Kita stood up as well, his gaze clear and sober, his eyebrows drawn together. Instead of taking Atsumu's other arm, Kita suddenly grabbed Kiyoomi's wrist. If Kiyoomi hadn't just grabbed Atsumu's himself, he probably would have snapped and shoved Kita backwards, because how could he think he could just grab Kiyoomi like that?

But instead of pushing the former captain away, Kiyoomi scowled at Kita's hand, which was gripping him, and then stared at him, gaze dark and dangerous.

“I think Atsumu and I were just a little busy,” the white-haired man said dryly, so dryly that it was almost impossible to hear the darkness in his voice. But Kiyoomi wasn't stupid, he noticed how Atsumu's shoulders tightened, how his body tensed and noticed the threatening tone of Kita's voice.

But he didn't give a damn.


“Miya.” Kiyoomi said without paying attention to Kita.

Atsumu's gaze jerked to Kiyoomi, his eyes wide. He licked his lips. Both Kiyoomi and Kita followed this movement.

“Atsumu.”, Kita said on the other side. “I don't think we were done with our conversation.”

“Conversation my ass,” Kiyoomi hissed menacingly, but before he could say anything else, Atsumu lifted his arm and placed it gently on Kita's arm. He looked at his former captain with that damned look. That damned look that Kiyoomi had seen so many times before and had always wished he looked at him like that himself.

Wait, what?

Since when did Kiyoomi think about something like that?

"'s okay, Kita-san. I'll listen real quick to what Omi has to say for a minute, then I'll come back, ‘kay?"

Kita stared at Kiyoomi. Kiyoomi stared at Kita. For a few seconds, nothing happened, the sounds around them as if wrapped in absorbent cotton, while the two men waited to see who would give in first.

In the end, it was Kita who gave in first.

He released his hand from Kiyoomi's and nodded to Atsumu, “I'll wait, Atsumu.”

Atsumu swallowed and smiled at Kita. Kiyoomi wanted to bite Atsumu's lips, bite them so bloody, he could never smile at Kita like that again.



Kiyoomi seemd to win the unspoken contest between him and Kita, but his inner turmoil did not diminish. The way Atsumu smiled at him almost drove him to white heat.

Atsumu nodded to Kita again and then Kiyoomi took the chance to pull Atsumu behind him, his hand still firmly gripped around the wrist of the setter, pulling him behind him. He ignored the looks and shouts from his fellow volleyball players and pulled Atsumu into the bathroom in protest.

“Omi, hey, what the hell?” Atsumu asked as Kiyoomi locked the bathroom door behind him and Atsumu stood questioningly in the small room. It was relatively clean, considering that half of his teammates and the Raijins had certainly gone to the toilet by now, but Kiyoomi didn't want to think about that right now.

He turned to Atsumu, looked at the man in front of him, his broad shoulders that fitted perfectly into the dark green shirt, the dark trousers that fit his muscular thighs like a glove and then took a few steps slowly towards Atsumu.

“Omi?” Atsumu asked again, this time unsure.


Kiyoomi just huffed, his eyebrows furrowed, and by now he was so close that he could feel the heat from Atsumu's body. He stared unaffectedly at Atsumu's full lips as Atsumu took a step backwards. “What's wrong with ya?” The blond's voice was a little uncertain, as if he had never seen Kiyoomi like this before. Which was true, because Kiyoomi was actually the one who could always keep a low profile. The one who always looked at everything soberly and had a plan. But for some reason, he seemed to have no control over himself when he saw people trying to take what was his.

Mine.

Kiyoomi suddenly pressed his thumb to Atsumu's wet lower lip, causing the blond to flinch slightly. The blond had never experienced Kiyoomi seeking physical contact on his own.

“Did he kiss you?” Kiyoomi asked suddenly, his gaze still fixed on the lips of the player.

“Huh?” Atsumu managed a bit stupidly, blinking a few times before realizing what Kiyoomi meant, but the black-haired one was quicker.

“Did he ever kissed you?” Kiyoomi pulled his thumb back and waited for the answer, gaze dark and lingering.


“No, he did not.” Now Atsumu seemed to slowly regain his composure, to realize again that it was only Kiyoomi he was talking to and that Atsumu didn't need to be afraid of his own teammate. It was Sakusa Kiyoomi. His Omi. "And I don't see why ya should care, Omi. It's not like you're my frenemy or fuckbuddy", Atsumu said and was about to walk past Kiyoomi towards the door, but the taller one was quicker.

He pressed his hands on Atsumu's chest, pushed him slightly backwards so that the blond's back touched the cool wall and crouched over him. “Why should I care, you ask?” hissed Kiyoomi.

Atsumu swallowed noticeably, he kept looking back and forth between Kiyoomi's eyes and even though he was a little overwhelmed with the whole situation at the moment and told himself that there was no reason for Kiyoomi to act like that, his body couldn't help but react. His pants suddenly became very tight as Kiyoomi pressed himself closer to Atsumu. The black-haired man put his knee between Atsumu's legs and raised his hand to press it on Atsumu's chest. The blond held his breath under Kiyoomi's touch.

His teammate's dark eyes stared at Atsumu's neck. “What I am interested in, Miya, is why you let him touch you while you look at me like you want me to devour you?”


Atsumu made a non-masculine noise and let the breath he had been holding escape from his lungs. “I don't know whatcha mean, Omi.” The blond's voice was a mere whisper as Kiyoomi's long fingers slowly closed around Atsumu's neck. He didn't squeeze hard, just enough for Atsumu to realize how strong Kiyoomi was, how strong he could be when he wanted to be.

“We both know that's a lie,” Kiyoomi hissed back, leaning down towards Atsumu, his knee still between Atsumu's legs.

“W-what...?” Atsumu began, but before he could speak, Kiyoomi had rammed his teeth into his neck where Kita's lips had been before.

Atsumu automatically gasped and whimpered in pain, as Kiyoomis teeth dug further into the tender flesh. Kiyoomi grinned at the crook of Atsumu's neck as he ran his cool tongue over  his the bite mark.

When Kiyoomi lifted his head again and was at eye level with Atsumu, Atsumu bit his lips. He knew that Kiyoomi was beautiful, hell, he would be lying if he said he didn’t jerk off once or twice to him and his stupid twin moles, but seeing him from so close was better than anything he had ever done.

Kiyoomi eyed Atsumu silently for a few minutes, the blond was the first to break the silence. It was only a whisper. “Omiiii.”

“Uh huh?” Kiyoomi tilted his head, running his thumb in circles over Atsumu's neck. Atsumu's cock was hard in his pants by now, feeling every millimeter of movement as it rubbed uncomfortably against the fabric of his boxers.

“Please,” the blond whispered and the two men knew exactly what he meant. He didnt need words, the way Atsumus pupils dialeted and the pleading was proof enough 

Kiyoomi huffed once and then shot forward. His lips met Atsumu's lips halfway. It wasn't a romantic kiss, it was spit, teeth and anger - at least from Kiyoomi's side.

Atsumu pressed closer to Kiyoomi, meanwhile seeking friction against Kiyoomi's thigh, which kept stroking his leaking cock, and wimpered into the kiss.

Kiyoomi kissed like he was playing volleyball. Hard, determined and without compromise. Atsumu had never experienced anything like it. The black-haired man took Atsumu's lip between his teeth and bit down, hard - the blond sucked in his breath sharply in pain and then tasted the metallic blood wetting his lips, wanted to turn his head to the left because of the pain and the blood but Kiyoomi's hand was suddenly in his golden curls and held his head steady and strong in Kiyoomi's direction.

“Don't you dare. Keep fucking looking at me.” Kiyoomi growled and pulled Atsumu into another animalistic kiss.

Atsumu's knees went weak. He had never seen Kiyoomi like this before and he loved everything about it. He raised his hands, reached into Kiyoomi's dark curls and pressed himself even closer to his teammate. How often had he had the chance to kiss Kiyoomi like this? He had to take advantage of it.

After a few minutes of Atsumu rubbing against Kiyoomi's knee and Kiyoomi biting Atsumu's lip bloody, the two men broke away from each other, breathing heavily. Kiyoomi's chest rose and fell erratically, his pupils dilated to the point where his eye color was indistinguishable from them.

Atsumu's lips were wet with his own and Kiyoomi's saliva, his eyes half-closed and his gaze glazed over as Kiyoomi put some distance between them.

The black-haired man ran his thumb over Atsumu's lower lip, memories of just a few minutes ago flooding his mind. He couldn't help it. “Tell me, Miya, would your former captain kiss you like that?”

Atsums blinked a few times, still not quite able to take it in. “Huh?”

Kiyoomi didn't waste any time on it, and he didn't repeat the question for now. Instead, Kiyoomi went to work on his own belt. He opened his belt with ease, his pants fell to the floor and Atsumu's blurry gaze followed Kiyoomi's hands. Then the blond felt Kiyoomi place his hands on his shoulders and push him slowly down onto the floor.

Atsumu obeyed immediately, only now realising what was happening. He dropped to his knees, trying not to think about the brief pain that briefly cleared his thoughts as his knees hit the hard ground, and looked at Kiyoomi through his dark eyelashes.

Okay, if Atsumu thought Kiyoomi looked good at eye level, then Kiyoomi looked fucking divine from below.

"What did you want to do with him? Were you going to give Kita a blowjob in the bathroom here too, Miya? Huh? Was that your goal for tonight?" Kiyoomi asked dryly as he removed his boxers. His hard cock bounced against his dark blue T-shirt and Atsumus swallowed. He had seen Kiyoomi's cock many times before, but it never looked as big as it did at that moment.

Kiyoomi took it in his hand and pumped twice, then stroked his head just how he liked it and smudged his precum with his thumb. Atsumu stared at his cock, hypnotized.

Kiyoomi tilted his head and rolled his eyes. "Answer me, Miya. What would you have done with him?"

“Nothin',” Atsumu whispered back, sliding imperceptibly on his knees a little closer to Kiyoomi's dick.

Kiyoomi huffed. "Of course. I'm sure a slut like you would have taken him home just to talk."

Atsumu's cock twitched in his pants and he pulled his bottom lip out in a pout and looked at the ground, but before he could pout further, Kiyoomi had grabbed his chin and pushed it up, making Atsumu look at him.

“Look at me when I'm talking to you,” Kiyoomi said boredly.

Atsumu nodded and licked his dry lips when he realized how close he was to Kiyoomi's cock. He could literally smell him.

Kiyoomi laughed coldly. “Your attention span is truly fascinating.” The black-haired man leaned forward so that the tip of his cock touched Atsumu's lips. Precum wet his lower lips and Atsumu instantly opened his mouth to allow Kiyoomi entrance as he stared expectantly at the black-haired man from beneath his dark lashes.

Kiyoomi reached into Atsumu's hair not exactly carefully, tugging on his blond strands a little, so that Atsumu opened his mouth wider and Kiyoomi could slowly push his cock into the warmth of his mouth.

Atsumu made a pleased noise as he tasted Kiyoomis salty precum and closed his lips around the head.

For once, Kiyoomi couldn't help a small smile. “So greedy for cock, huh?”

Atsumu mumbled something unintelligible and then began to move his head with Kiyoomi's hands in his hair. Kiyoomi inhaled with a hiss as the head of his cock touched the back of Atsumu's throat.

Atsumus kept trying to open his mouth, saliva running down his jaw right and left as his eyes slowly gathered with tears. Kiyoomi was fucking big. And Atsumu always prided himself on giving good blowjobs, but when Atsumu had all of Kiyoomi's cock in his mouth and his nose touched Kiyoomi's soft pubic hair, even he had to gag a little. But he wouldn’t give up like that.

Kiyoomi didn't seem to care about the whole gagging thing, it may have turned him on even more. "Fuck, when I think about it, he could have been the one ramming the cock down your throat”, Kiyoomi whispered, running one hand through his locks while the other hand kept Atsumu's head in place.  

Atsumu closed his eyes and a small tear ran down his cheeks as he began to move his head back and forth. His own cock was now so hard that it started to hurt and hix boxers must have been soaked with precum by now.

Kiyoomi hummed, put both hands on Atsumu's head and grabbed his hair thight. “I'll ruin you for him. I'm gonna fuck you so hard you never want anybody else anymore, got it, Miya?”

Atsumus whimpered around Kiyoomi's cock, opening his eyes and crossing the gaze of Kiyoomi. Atsumu really wasn't a little man, he had more muscle than Kiyoomi and yet he felt like he was allowing Kiyoomi to do anything with him. And that's exactly what he wanted. The sound of spit and Kiyoomi's moans as he pushed faster and faster into Atsumu's mouth filled the bathroom, while Atsumu's hands clawed into Kiyoomi's thigh, so deep that even the black-haired man had to groan. 

 

A few minutes passed in which Kiyoomi continued to animalistically abuse Atsumu's mouth for his own enjoyment. Atsumus squeezed his thighs to find at least some friction for his own dripping, hard cock, but when Kiyoomi realized what he was doing, he tore Atsumus' mouth away from his cock and looked at him with an impenetrable look. 

Before Atsumu could ask what was going on, Kiyoomi pulled the blonde up by his hair so they were back on par. The black-haired man pressed his lips to Atsumu's, he tasted himself on Atsumu's tongue, sucked on it and bit Atsumu's lips before quickly breaking away from the setter.

“Omii.”, Atsumu breathed against Kiyoomi's lips, saliva bandaging his lips. 

“Miya.”, Kiyoomi returned, and the grip on Atsumu's hair grew stronger, the black-haired man began kissing his neck, licking his delicate skin there, and Atsumus moaned loudly as his hands found and grabbed Kiyoomi's curly hair. Kiyoomi had to make sure. He had to make sure that every person Atsumu met knew he belonged to someone. To Kiyoomi. The warm feeling of jealousy in his chest had diminished, had almost faded when Atsumu got on his knees for him, and yet he felt something dark, deep inside him. 

Mine.

Kiyoomi abused the skin on Atsumu's neck, one hickey after another was sown by the black-haired man there, while Atsumu rubbed against Kiyoomi like a wild animal to finally get some friction. The blonde groaned as Kiyoomi's fingers wandered under Atsumu's shirt, playing with his hard nipples. If Kiyoomi didn't put his fingers to his cock within the next 2 minutes, Atsumu would die, that much was certain. 

“Omii, please ”, Atsumu said, his hip shooting forward. 

Kiyoomi grinned at Atsum's neck and licked above the latest bite, Atsumus neck covered in all sorts of hickeys and bite marks. “What?”

“Touch me. Please.”, Atsumu breathed. 

Kiyoomi chuckled, leaned back and looked at Atsumu with his dark eyes. “Would you have asked Kita that too? Actually you know what? You probably don’t care who touches you, right? The important thing is that our little setter gets his hole filled, am I right? Doesn’t matter where or who it does, as long as little Atsumu gets fucked.” 

Atsumu eyelashed and shook his head. “Want ya, Omi. Just ya.”

“Looked different earlier”, Kiyoomi hissed back, and Atsumu bit his lip, tasting his own blood and Kiyomis spit. Okay, that might not have been his most exciting idea, but he hadn't been able to hold back from at least making Kiyoomi a little jealous, okay? Now he had to live with the consequences.

Atsumus rubbed his cock against Kiyoomi's thigh again and then everything happened quickly. In one movement, Kiyoomi let go of him, Atsumu immediately missed the warmth that came from him, then Kiyoomi suddenly turned Atsumu so that he was hunched over the sink and pulled his pants down, including his boxer shorts. The blonde was now standing with his bare ass towards Kiyoomi and could watch himself in the bathroom mirror. His cheeks were full of dried tears, his gaze glassy and his hair totally messed up by Kiyoomi. Even though they hadn't even fucked yet. 

And then Atsumu suddenly felt a warm hand closing around his cock and he needed every possible restraint not to cum into Kiyoomi's hand straight away. He bit his teeth and groaned as Kiyoomi ran his fingers over his Precum-wetted head, but all the touch didn't last long, instead Kiyoomi pulled his hands back and Atsumu felt his butt cheeks being pushed apart. He sucked in a sharp breath as Kiyoomi slowly pushed his finger, wetted with his own precum, in. 

“Such a slut. I bet you would have done the whole thing for your old captain, too. You probably would let happen anything to you, as long as you got cock, right?” Kiyoomi asked, Atsumu whimpering as Kiyoomi's finger bone was deep inside Atsumu, his walls tightening around Kiyoomis knuckle. 

“Answer.”, Kiyoomi said dryly, but when Atsumu didn't respond again because he had to deal with Sakusa Kiyoomi having a fucking finger in his asshole, Kiyoomi reached his hand far and hit one side of his butt with full force from Atsumu. Clap . The blonde gasped, tears welled up in his eyes, and he looked angrily over his shoulder at Kiyoomi. 

“Fuck ya.”, Atsumu concluded. 

Kiyoomi tilted his head and smiled as he massaged Atsumu's flesh and pushed his finger further into Atsumu. 

“No, Atsumu, wrong.”

Atsumu's cock twitched at the mention of his first name and if the whole situation hadn't been so crazy, he might even be embarrassed. 

Kiyoomi swung again, not a second later the next swung went to the same spot as before, Atsumu's body slipped forward, his cock brushed the cool marble of the sink, and a tear rolled down his cheek. Clap.

He bit his lips and tried to concentrate. What had Kiyoomi asked? Something about Kita or something. 

“I wouldn't have done that with Kita.” Atsumu replied.

Kiyoomi hummed, withdrew his finger from Atsumu and whimpered at the loss. Then the blonde saw Kiyoomi's finger approaching out of the corner of his eye and he automatically opened his mouth. Kiyoomi had Atsumu wet his fingers with his spit for a few seconds, only to press two into Atsumu's entrance at the same time. 

The blonde gasped again while Kiyoomi, strangely enough, opened him really carefully. 

When the black-haired man seemed satisfied, he withdrew and leaned forward. Atsumu felt Kiyoomi's hard cock pressing against his entrance, but Kiyoomi wanted to make him suffer a little more. Instead of ramming his cock into Atsumus, he began kissing Atsumu's back, began leaving his markings on Atsumu's brown skin, and carefully bit his skin, only to lick over the bite wounds. 

“Omiiii, please.”, Atsumu said again. He had never begged so much in his entire life. If he wasn’t so drunk on endorphins right now, he would have been embarrassed as hell, bus his skin hurt where Kiyoomi bit him, his hole ached for Kiyoomis big cock and Atsumu just wanted to be filled up.

“Please what?” Kiyoomi asked back, licking Atsumu's right shoulder. 

“Just fuck me already.”

“So impatient.”

Atsumu huffed and Kiyoomi chuckled.

Before Atsumu could say anything else, he suddenly felt Kiyoomi's cock pushing inside his tight hole. The blonde gasped loudly, held his hand over his mouth to keep from screaming and felt his circulation give way a little, but Kiyoomi was right there. While his head began to spin, the other volleyball player held him, his long fingers pierced Atsumu's brown skin on his hip and he held him in place to slowly push into Atsumu up until his balls touched his skin. When he was filled to the brim, Atsumu exhaled tremblingly. 

Kiyoomi leaned forward to lick Atsumu's auricle. He whispered: “I never want to see you do something like that to Kita or any other man again, understand?”

Atsumu flushed. But before he could say anything back, Kiyoomi withdrew completely from Atsumu, only to push back into him with double force. 

Atsumu's fingers reached for the sink over which he was bent and then Kiyoomi set an animalistic rhythm. 

The black-haired man's fingers rammed into his flesh, Atsumus looked up with his eyes half open only to see his reflection as it was taken from behind by Kiyoomi. Black curls fell on his teammate's forehead, he had his eyebrows slightly furrowed and was looking straight back at Atsumu in the mirror. God, had Sakusa Kiyoomi always been so beautiful? The answer was; yes. Clearly, yes. Since training camp, Atsumu had found him hot, but Kiyoomi wasn't an easy character. It's all the more surprising that the whole thing happened now. Apparently he just had to make Kiyoomi jealous to have him. And Atsumu was damn good at that.

 Kiyoomi pushed deeper and faster into Atsumu, the blonde noticed Kiyoomi's cock repeatedly stroking his sensitive spot and neglectfully pressing his own cock against the cold sink. He let go of a hand to touch his own cock, but Kiyoomi was faster. He continued to lean over Atsumu, slapped his hand away and grabbed Atsumu's cock himself. “I never allowed you to touch you, did I?”

Atsumu swallowed and shook his head. He bit his bleeding lip and groaned as Kiyoomi again brushed his prostate. 

Kiyoomis fist closed around Atsumu's cock, his thumb pressed on his cockhead and he let out a whimper, which only spurred Kiyoomi further to push further into Atsumu. 

The sweat between them became more and more, the clapping of skin on skin echoed in the bathroom and Atsumu felt a warmth accumulate within his stomach. He wouldn't last much longer. His scalp began to tingle, his legs hurt to be bent over so far forward, and he felt Kiyoomi press his cock head again, causing him to see stars.

“'m close”, Atsumu whispered, no longer trusting his voice.

He saw Kiyoomi grinning in the mirror, but the black-haired man himself didn't seem to be far away as he continued to push inexorably into Atsumu.

“Fuck, you're such a good slut, Atsumu.” Atsumu's cock twitched and he was sure Kiyoomi would notice because the black-haired man grinned slightly. “Do you like it when I call you slut or is it because of your first name?”

Atsumus didn't even get around to answering because Kiyoomi firmly pushed his cock deeper into Atsumu's abused hole. “I'm going to fuck the idea of fucking some other guy out of your brain, got it, Atsumu?”

Kiyoomi's fingers continued to pierce the blonde's hip and he was sure it would leave marks, but he didn't care. What was important was that Kiyoomi rammed his cock further into him, that the warmth in Atsumu continued to spread and the knot in his stomach threatened to come loose. 

“ ‘miii.”, Atsumu mumbled, his tongue now hanging out of his mouth, panting like a dog in heat and he looked at Kiyoomi through the mirror with his eyes half closed.

“Say it”, gasped Kiyoomi, having probably reached his limit by now, but Atsumu didn't seem to mind. Not a single one had ever done it as hard as Kiyoomi was fucking him. “Say you're mine. Only me–” Kiyoomi's voice stopped because he had to hold back from marking Atsumus with his juice right here and now. 

Atsumu nodded. “Just ya. Fuck, Omi. I'm just yers. Don't stop.”

Kiyoomi grunted, his cock stroking Atsumu's prostate again and again, and the blonde gasped again. “Please.”

Kiyoomi was breathing heavily, his legs were threatening to give way, his curls were stuck to his forehead from the sweat, and he knew that neither he nor Atsumu would last long. 

He leaned forward with the last of his strength and without touching Atsumu's cock, he licked it over his auricle again and whispered; “Come on, Atsumu. Cum for me.”

That was all it took. Atsumu let out a scream, his fingers clung to the sink and he threw his head back as he came untouched and shoot his white liquid everywhere. And if that wasn't the most beautiful thing Kiyoomi had ever see; the blond strands of hair sticking on his forehead, the plump lips open and inviting and his face torn into something between pain and pleasure.

But he wasn't quite finished yet. While Atsumu's body could no longer, he fell forward and had to hold on to the sink, Kiyoomi continued to mercilessly ram Atsumu's cock into his hole. 

Whimpering with hyperstimulation, wanting to move away, wanting to reach for Kiyoomi's hip to tell him to stop but Kiyoomi was faster, he grabbed both of Atsumu's wrists and pressed them onto the blonde's back as he continued to fuck him. 

Atsumu whimpered high pitched and Kiyoomi grunted. “Gonna fill you up. Show everyone who you belong to. Ain't that right, Atsumu? That's what you want?”

The blonde nodded, tears welling up in his eyes as he looked at Kiyoomi in the mirror. “I'm yers. Please, Kiyoomi.”

That was all it took. The knot in Kiyoomi's stomach came loose, he stepped across the border and pumped all his hot sperm into Atsumu's hole with full force. The blonde gasped as he felt himself being replenished to the core, Kiyoomi continuing to ride his own orgamus and pumping his sperm further and further into Atsumu. 

It took a few minutes for the two of them to catch themselves, Kiyoomi still inside Atsumu, the blonde still leaning over the sink when their eyes crossed in the mirror. 

Kiyoomi leaned forward to brush a few strands from Atsumu's face. He then withdrew from Atsumu and let his white liquid flow out of his entrance. He reached for a paper towel and began to clean the blonde while the blonde stood up slowly and looked carefully in the mirror. 

“Damn, Omi. Did you want to devour me?” The setter pointed to all the hickeys and bites scattered across his chest, neck and back. 

Kiyoomi threw away the paper towel and pulled up his pants, then shrugged his shoulders and gave Atsumu a small grin. “I just wanted to mark my territory.”

Notes:

Also i noticed that i started this fandom thinking atsumu would be the perfect top and guess what, i have so many fanfics with kiyoomi as top suddenly that I'm mad at myself bc i need more bottom kiyoomi wtf. maybe next time i'll write another one with bottom kiyoomi again bc i miss it >:(