Archive of Our Own

Rintarou is lying on his bed, bored out of his mind and scrolling through his Instagram feed while he waits for a certain person to text him when he sees it. Atsumu's newest post.

From the background of the pictures, Rintarou can easily recognize Onigiri Miya. There are lots of Atsumu's teammates so it may be a MSBY post-game celebration, Rintarou doesn't really care about that. What does, however, draw his attention is Osamu in the background of one of the pictures that Atsumu has posted. The latter is in his work outfit, seemingly enjoying a drink and conversations with Bokuto and Hinata and… some girl that, in Rintarou's humble opinion, is standing way too close to him.

So that is why Osamu hasn't been texting him back all night… Whatever. Rintarou doesn't even care. It's not like Osamu is obliged to text him every night, it's just a habit they have, that's all. A habit that, until today, Osamu never missed. But whatever. It's cool.

He can't really remember exactly how or when it started. He and Osamu have always been close but they never texted that much, at least not in high school when they could see each other every day in class. But when they graduated and Rintarou moved to Shizuoka to play with EJP while Osamu went to cooking school in Tokyo, the distance took a toll on both of them. So they started calling and chatting more and more.

It grew gradually, from texting every week to every other day to every day to several times per day. And then the phone calls came, also gradually and without them even realizing, they were calling each other almost every night to the point that Rintarou sometimes couldn't fall asleep if he hadn't heard Osamu's voice before. They also sometimes video called, when it's been too long since they last saw each other and needed more closure than what the texts and voice calls were giving them.

It became a habit that still goes on to this day. Osamu is now even further away from him than before, in Osaka, having become the chef and owner of his restaurant and not counting his weekly work hours. And Rintarou, as opposed to when he started as a rookie and was lucky if he could play one set, he is now a professional athlete with a full-time starting position. They both are busier than they used to, but they still make it work.

Until tonight apparently, that is.

Before Rintarou can give himself enough time to rethink how pathetic and embarrassing what he's about to do is, he goes to his DMs and clicks on Atsumu's conversation. He snorts at the last meme he sees that he sent in their conversation a few days ago and types his text, sending it before he can reread anything. Atsumu sees the message almost instantly.

To: miyaatsumu
who's that next to Samu

From: miyaatsumu
lol
idk? some customer ig
ur embarrassing

To: miyaatsumu
as if you're one to talk

From: miyaatsumu
ha!
[miyaatsumu sent a photo]

Rintarou opens the picture and groans loudly when he spots a mop of black, curly hair lying on Atsumu's chest. He can't pretend he doesn't feel proud and happy for Atsumu though, knowing how long the latter has been pining over Kiyoomi.

To: miyaatsumu
ew
gross
congrats i guess

From: miyaatsumu
<3

Rintarou snorts and leaves the discussion. He feels another ping in his chest when it leads him back to the initial post. He can't really read Osamu's facial expression, but the girl's face is pretty easy to read. She clearly has some sort of crush on him, and as much as Rintarou hates it, he can't really blame her for that.

He's startled out of his train of thoughts when his phone rings and Osamu's name appears on his screen. Rintarou only makes the other man wait for a total of three seconds before he answers the call.

"Hey, Rin. Sorry I wasn't able ta text ya back, tonight's been busy at the restaurant," Osamu's deep, tired voice sounds.

Rintarou can't control the way his body instantly relaxes as soon as he hears the other man's voice. How he thinks that, now, he could fall asleep any minute. Never in his life has he thought someone would help that much power over himself.

He clears his throat. "Yeah. I saw Atsumu's post on Instagram."

Osamu groans. "I told him to leave me out of those pics," he chuckles.

Rintarou hums. "Seems like you had fun." He hates how judgmental his tone sounds even to his own ears.

Osamu chuckles, seemingly deaf to his tone. "Yeah. The boys are always fun to hang out with. Missed ya though." Rintarou's heart flutters involuntarily. "When I saw your texts, I figured I'd call you instead, it's quicker."

Rintarou hums again. "Doesn't look like you've been chatting with the boys only."

There's a small moment of silence during which Rintarou can picture Osamu's cute, confused, furrowed eyebrows. "Mh?"

Rintarou shakes his head. "Nothing. I'm tired."

"Oh. Okay. Yeah, me too actually. Night, Rin."

Rintarou closes his eyes and lets out a deep sigh. Ultimately, Osamu doesn't owe him anything and Rintarou knows he's being unfair. "Night, Samu."

The thing with social media is that everyone posts, and especially the MSBY Black Jackals. Rintarou sees new pictures from Atsumu, then he sees posts from Bokuto and Hinata, Meian posted a team picture, and even Kiyoomi posted a story. And in several of these pictures, invisible to anyone but him, there is Osamu in the background with that same girl. It's like they all collectively decided to take pictures at the same time— at least that's what Rintarou persuades himself of, because the alternative option would be that Osamu spent the entire evening talking to her and that's just too much.

Rintarou falls asleep that night with an ugly feeling still boiling inside of him and the urge to do something about it.

The next day, when his coach announces to the team that they have Saturday, Sunday and Monday off because of their game on Friday afternoon, Rintarou doesn't waste a single second before buying a ticket to Osaka booked for Friday evening. To hell with false understanding and fairness. There's no way he's gonna let some random girl stake a claim on what's his.

Granted, he's fully aware that Osamu is a perfectly handsome, hot single man and Rintarou has no ground to stake his own claim either. But he's never particularly cared about rules. Atsumu would probably tell him to grow balls and directly confess, but Rintarou also never particularly cared about Atsumu's opinion on one's love life.

The train ride is pleasant. Rintarou relaxes his body and loses himself in his music while he looks at the scenery, repeating over and over in his head all the things he could tell Osamu but that he probably won't.

It's not that he doesn't have the balls— he isn't scared to tell Osamu how he feels. What he's scared of is the aftermath. What if Osamu doesn't feel the same way or what if he does and they still don't work? What happens to them, then? To their relationship? They've been friends for so long, Osamu is the most important person in his life and Rintarou is not willing to risk it all. He doesn't think he could live without Osamu as his best friend, without Osamu by his side.

The restaurant should now be closed for customers at that time and yet, Rintarou almost walks into the door when he spots the same girl from the pictures through the windows. Seriously? She looks like she's awkwardly giggling and twirling her hair or some shit… she couldn't be more obvious, Rintarou thinks as he rolls his eyes all the way to the back of his head. He glances at Osamu and strangely feels a mix of relief and anger at the fact that he looks uncomfortable.

Rintarou pushes the front door and immediately stops in his tracks when he hears Osamu's voice. "—ot interested. I have a boyfriend."

Rintarou can't help but smirk at the rejection. It only takes his brain an additional ten seconds before he registers the end of the statement. Wait. What?

Rintarou misses the girl's next words and he comes back to the present when said girl bumps into him on her way out. Rintarou gulps and makes his way further in the restaurant. The door clicks shut and Osamu raises his head in its direction. The way the latter's face breaks into a huge grin upon seeing him has Rintarou's heart skipping a beat.

"Rin!" Osamu exclaims. "Yer here! I didn't think ya were comin' back until the end of the month!"

"Erm," Rintarou chuckles awkwardly, still shaken by the revelation he just heard. He shakes his head and refocuses on Osamu, who's approaching him with open arms fast. "…Surprise?"

Osamu's grin widens, if that is even possible, and Rintarou can't look away. He finds himself engulfed in a bear hug the next second. "'Am so happy ta see ya."

Rintarou hums, "Me too." He tightens his embrace around the man's back because he is nothing if not weak for one Miya Osamu.

He lasts for a total of five seconds when they part before he blurts the question out. "You have a boyfriend?"

"Huh?"

Rintarou eyes him for a moment before he sees some understanding draw on Osamu's face. His cheeks pinken.

"Oh," Osamu chuckles awkwardly. "Ya heard that." He scratches the back of his neck and avoids Rintarou's eye-contact, clearly showing that he's embarrassed but Rintarou can't really understand why. They've never been embarrassed around each other before.

"I, um, no I don't have a boyfriend."

Rintarou raises an eyebrow at him. "Why did you tell her that, then? You could've just said you weren't interested."

Osamu opens and closes his mouth twice before he clears his throat and finally replies. "I like telling people I have a boyfriend."

"Mh. That's not gonna help you get a real boyfriend, though."

Rintarou hates himself for how dumb he is at digging his own grave. He could simply shut up and enjoy the revelation that apparently, for some unknown reason, Osamu keeps himself purposefully single.

Osamu shrugs. "There's only one man I want but he's a little dense when it comes to these things."

Rintarou's entire body freezes while his heart hammers in his chest. "What? Who?" He asks, suddenly feeling breathless.

Osamu stares at him for several, very long seconds and Rintarou dares to hope that this must mean something. He audibly gulps and takes a step forward.

"What if I told you… hypothetically… that my unprompted visit has something to do with pictures I saw of you and this girl looking too close to my liking?"

Osamu hums in thoughts while a lazy grin takes place on his face. His shoulders relax. "And what were ya gonna do once ya got here?"

Rintarou hums in turn. "Was gonna stake my claim or something… some manly shit, you know?"

Osamu snorts a laugh and Rintarou can't help but join him. "Hot."

Rintarou nods, still laughing. "I know right."

Osamu takes a step forward and suddenly they're face to face. His smirk turns into a softer smile and Rintarou's heart flutters at the sight. "Ya know ya never had competition, right?"

Rintarou's heart goes back to hammering in his chest. He thinks his cheeks may be red, at least they feel warm, but he can't stop smiling. "You never did either," he replies as he takes one last small step forward and wraps his arms on each side of Osamu's neck. The latter's hands settle around his waist like they belong here. Rintarou thinks they do.

They lock eyes and, the next second, their mouths clash together in a long awaited kiss that somehow feels like coming home.

"It's always been you, Samu." Rintarou says when they part.

Osamu offers him the most fond and gentle smile Rintarou has ever seen in his life, it takes his breath away. "I love ya, Rin. Have loved ya since high school."

Rintarou's eyes widen positively and he can't help but chuckle at the idiocy of the situation. "You mean that we could've been together for ten years already?"

Osamu's eyes widen in turn and both men laugh out loud before bringing their mouths together once more.

"I love you too, by the way. Have loved you since high school too, in case that wasn't clear." He snorts a laugh again, drawing small circles in Osamu's nape.

"Oh, really?" Osamu smirks, his eyes lighting up with some sort of mischief. "What about all those guys ya've been with?"

Rintarou raises a curious eyebrow at the question but doesn't let it bother him. He likes sex, he's never hidden it from anyone. He shrugs nonchalantly, "They were just hook-ups, I never had feelings for any of them."

Osamu hums. His smile never falters for even one second, Rintarou knows they're okay. They're more than okay. "Mh. Yer not allowed ta do that anymore."

Rintarou smirks. "Oh yeah?"

Osamu nods and hums again. "From now on, I'm the only one allowed in yer bed."

Rintarou's smirk widens and he starts to feel this familiar heat pooling at the bottom of his stomach. "Works for me. Can we start now?"

Osamu smirks in turn and he tightens his grip around Rintarou's waist, his eyes darkening when they settle back on his mouth. "Thought ya'd never ask."

Rintarou snorts a small laugh before he surges forward to capture Osamu's lips again. This time, it's a deeper, hungrier kiss than before that has Osamu sighing and humming pleasantly. Osamu kisses him back in earnest as his hands move from Rintarou's waist to grab his ass, the latter letting out a small moan that Osamu swallows down immediately.

They part for air a few minutes later and Osamu quickly locks the restaurant's front door before he drags Rintarou to his apartment upstairs. What a wonderful idea that was, Rintarou thinks.

They will need to talk about all this, what it means and what it changes for them. But, well… they've been having phone calls and video calls almost every day for the past several years so Rintarou thinks they can manage. He trusts Osamu, and there's no one else he'd rather be starting this new chapter of his life with.

Plus, right now, as Rintarou is laid out on Osamu's bed, eyeing the other man's naked body with barely contained lust, he concludes that they have more urgent matters to attend to and that talking can definitely wait.

"Fuck Rin… Ya dunno how long I've wanted this." Osamu mumbles, his eyes roaming over the entire expanse of Rintarou's body as he knees on the mattress.

Rintarou smirks and spreads his thighs to accommodate the other man on top of him. "Yeah? Show me."

Osamu's smirk turns almost predatory, and Rintarou's whole body feels as if it's just been ignited from within. He doesn't think he's ever been this hard and they haven't even done anything yet. With anyone else, he thinks he would be embarrassed, but right now he doesn't. He can also definitely feel Osamu's hard dick pressing against his hip as well, and it only serves to turn him on even more.

Osamu is kissing him as if he's trying to devour him, and Rintarou all too happily lets him. They moan and groan in each other's mouths while their dicks grind against one another against his stomach, Rintarou feels lightheaded.

"Can I—" Osamu pants as he breaks out from the kiss. "Can I eat ya out?"

Rintarou's eyes widen in surprise for a second because his eyes resettle on the man's face, darkened. "Yeah," he nods, panting as well.

Osamu's smile widens as if he's just been granted a wish and Rintarou can't help but snort a laugh at the reaction. He spreads his thighs a bit further and before he even has time to prepare himself, Osamu's tongue is lapping at his hole.

"Shit— Samu!"

Osamu hums.

"It's been a while."

Osamu draws back with a 'pop' sound that makes Rintarou groan. "That ya got fucked or that someone ate ya out?"

Rintarou stares at him for a few seconds during which he feels the back of his neck heat up before he rolls his eyes. "Both."

Osamu looks surprised by the admission but he doesn't question it. He hums. "I'll make it good."

Rintarou knows he will. He doesn't have time to reply before Osamu dives back in with more fervor than before. It's not the first time that Rintarou gets eaten out… but man. He's never experience that.

Osamu is rutting against the mattress, moaning and grunting between his legs as if he's been starving until today and now trying to devour his ass like it's his last meal on Earth. It would be the understatement of the year to say that Rintarou is aroused by the sight before his eyes. In fact, it's so obvious that Osamu is into him and enjoying eating him out, it's surely the hottest thing someone has ever done to him during sex.

It's a weird realization to come to, Rintarou realizes, but right at this moment, he can feel the love Osamu has for him. He knows he can't doubt or question it. It's evident in every single one of his actions, gestures, glances. Everywhere. He's pretty sure he can even somehow smell it in the room.

He is so hard and leaking, Rintarou is sure that if he were to stroke his dick now, he'd come in a record time. But he doesn't want to end things already, and he really, really wants to come on Osamu's dick.

In his delirious, lustful mind, Rintarou must've missed his brain-to-mouth filter because Osamu groans loudly the next second and draws back from his rim. Only then does Rintarou realizes he voiced his thoughts aloud.

"Fuck, Rin. Yeah, I want that too."

Wow. Osamu his panting heavily, his mouth and chin are completely soaked and it's the hottest sight Rintarou has ever seen. He grabs the man's face and kisses him like there's no tomorrow. He tastes himself on Osamu's tongue and they both moan in each other's mouths.

"Fuck me, Samu. Now." Rintarou pants impatiently. He feels like he's about to explode.

Osamu nods several times and, really, it shouldn't be cute. But somehow it is. Maybe Rintarou is completely head-over-heels fucked. He doesn't think he cares.

Osamu goes to grab a condom and Rintarou stops him. "I'm an athlete, we have regular checks."

Osamu blinks and lets his forehead fall against Rintarou's shoulder with a loud groan. "Yer tryna kill me. I ain't gonna last, Rin."

Rintarou snorts a laugh but it comes out fond. "Me neither, don't worry. I just wanna feel you."

Osamu groans again but he moves into place. Rintarou hisses when he starts to push in but his body immediately relaxes the next second. This is Osamu. This is safe. This is all he's ever wanted.

Their mouths find each other naturally in some lazy, open-mouthed kisses that don't really have any rhythm as both men seemingly just want to be as close as possible, with as much part of their bodies in contact with one another. They moan in unison, panting in each other's mouths, when Osamu bottoms out.

Rintarou settles his hands in the other man's back as soon as Osamu starts thrusting. He digs his fingers in the flesh and he smirks when Osamu moans unabashedly at the action. Rintarou keeps in a part of his mind every single one of Osamu's reactions to everything he does, making sure to explore them all again at a later time.

Osamu's thrusts start in rhythm but, true to his words, they quickly turn erratic as it becomes clear that the man is aiming for his orgasm. Rintarou is so out of it and basking in every sensation coursing through his body that he doesn't care one bit and lets Osamu use him as he pleases. He finds it incredibly hot, if he were being honest with himself.

He brings a hand to his own cock and starts stroking it in rhythm with Osamu's quick thrusts. True to his words as well, it only takes a couple of minutes and, the next time Osamu hits his prostate, Rintarou comes all over his stomach.

He keeps stroking himself to ride his orgasm, his other hand buried deep in Osamu's shoulder blade. He moans in the other man's mouth and whispers sweet words, repeating Osamu how good he is and feels and the latter is done for. Osamu chokes on his saliva at the praise and comes the next second, burying his dick as deep as he can inside of Rintarou's hole.

He continues thrusting until his orgasm is fully ridden and Rintarou hums at the feeling of being filled. The next moment, Osamu falls boneless on top of him.

Rintarou huffs at the contact but immediately wraps his arms around him and kisses the top of his head. Osamu hums and Rintarou can feelagainst his chest the way the man's mouth merges into a smile. He smiles in turn.

He waits ten more seconds before he reopens his mouth. "So… Praise, uh?"

Osamu groans. "Shut up," he mumbles.

Rintarou bursts out laughing when he spots how red Osamu's ears have turned.