Okay, it's maybe not so much random as it is Junior Matsumiya pornish stuff. (It's late Junior years, at least?)
They're in Kyoto for the play, staying in the dorms. He's sharing a room with Aiba and Nino; Toma is still too young to join them on a week-long trip or else they'd all four be in one room.
Normally when they share Aiba and Nino curl up together in the same bed and Jun takes the other with Toma. Nino and Aiba both like to cling and touch while Jun generally finds it annoying and too hot. Toma never cares because he's always excited to be out with them, with the other Juniors. Tonight, instead of having the bed to himself, Jun is sleeping with Nino. Aiba is running a fever and he's under strict orders to not get them sick.
He wakes up in the middle of the night, breathlessly hard and wrapped around Nino like a lover. Nino is rocking against him, hard against his hip.
"Nino!" he pushes at him, at his shoulders, trying to move him up and off and silently cursing Nino's habit of sleeping practically on top of somebody. "Get off!"
Nino rocks against him a little harder. "I'm trying; quit laying there and move," he says in a sleep-clouded voice.
He pushes harder and pretends to himself that his legs aren't shaking, that he isn't digging his heels into the bed and trying to push back that way, too. "Get off me. I'm not-I'm not going to do anything gay with you."
The blanket rustles and then Nino is fully on top of him, directly over him, his breath washing over Jun's mouth, soft like summer starlight. "How is this gay?" Nino demands.
Jun has known Nino long enough to know that right now Nino is being infuriating on purpose. There's only one way to deal with this kind of Nino and that's to be just as much an irritating brat as he is. Jun hooks one leg over Nino's, the back of his knee high on the back of Nino's thigh, and lifts his hip using his hold on Nino to keep Nino from raising with the movement. With Nino right on top of him their erections line up beside each other. It feels so much better than he's expected and Jun jams his teeth into his bottom lip to keep from making a sound. "Gee," he says once he swallows whatever noise it was that had bubbled up in his throat, "you're right. This isn't gay at all. Sorry, Nino."
It makes Nino snort in amusement. "Jun-kun," he says in a very serious lecture sort of voice (Jun thinks Nino has been hanging out with Sakurai-senpai lately, to have that sort of tone), "Jun-kun, this isn't gay this is jerking off with assistance. It's wet-dreaming with partner. It's like girls 'cuddling' with pillows."
"Ew," Jun says. He means it. He's got an older sister with a mound of pillows in her room. "Why are you so gross?"
"Because I'm really horny and this feels really good. C'mon, it's not like I've got my hands on your dick."
Nino has been learning to play the guitar and he's getting really good. Jun sees him practice all the time. He practices so much that he's got new callus aside from the ones the buttons on his game controller has put on him. Jun felt them earlier when they were unloading the bus, passing along backpacks and bags and all the other stuff necessary for an extended stay. Jun felt those fingers and those calluses along the back of his hand and he can imagine how they'd feel wrapped around him in the warmth and softness of his pajama pants. Nino would go slow at first because Nino likes to get things right, likes to get a perfect score. He'd stroke slow and soft and get firmer and firmer until Jun couldn't help but move and make noise (at home he gasps softly and it sounds loud in his room, shifts the tiniest bit and feels like the earth is shaking around him). Nino would go slow and fast and find the right rhythm because no matter what he said Nino liked music, liked singing, liked it a lot.
"I wouldn't let you touch that even to save your life," Jun tells him frostily. They're still squirming against each other but he won't tell if Nino doesn't.
"It's a good thing I'm not in danger of dying then, isn't it?" Nino says cheerfully. Jun likes how Nino sounds perfectly fine but is actually grinding down against him, his fingernails biting hard into Jun's arms. "C'mon, Jun, don't make me talk you into this like you're some sort of princess-y girl."
"Child homo," Jun calls him. But he moves with Nino. Somehow this feels so much better than just touching himself. It's exciting, like sneaking out after curfew or getting one of the senpai to give him beer. There's a thrill prickling in every place he and Nino are touching and he wants to put Nino's hand down his pants, wrap it around himself. He wants to put his own in Nino's and see if that will make his hand tingle like that place at the base of his spine. He wants to know if Nino feels like he does, if he's that hot and if he'll jerk and shiver. He's going crazy with the way their cocks are rubbing against each other under the cover of his pajama bottoms and Nino's shorts. "You're a-"
"You're younger than I am," pants Nino, moving faster.
His knee is suddenly between Jun's legs, all bony angles against Jun's balls and crowding them up, rubbing them with every thrust against him. Jun returns the favor and drinks in Nino's gasp. He wants Nino to kiss him until their little sounds get stifled against each other's. He wants Nino to touch him someplace, furtive at his nipples or demanding at his crotch he doesn't care. Jun winds himself around as much as Nino as he can and twists, hard. They've been dancing together for long enough that Nino reads the movement even as Jun makes it and responds to it. The bottom drops out of Jun's stomach and his brain shoots straight out the top of his skull and he comes for so long that he wonders just what the hell is wrong with him before he finishes and relaxes back.
Nino is still moving over him, the streetlights and the moonlight making him look strange and familiar both. Jun wraps one arm around Nino's shoulders and pulls him down so that he doesn't have to look at him and feel this way. Nino makes a soft grunt in his ear and goes still against him and Aiba's eyes glitter at him in the darkness and Jun is content.
Until he realizes that if Aiba's eyes are glittering at him that means that Aiba is awake and looking at him. He shoves Nino out of bed and Nino yelps as he hits the floor.
Aiba lets out a soft, breathy giggle and Jun can see the way one of those big smiles is making Aiba's eyes crunch closed. Jun slams his eyes shut and wishes he could undo…something. Something about the past few minutes. Or the next few. He doesn't know and he can't really think right now.
"Were you watching us, you pervert?" asks Nino. He sounds disinterested.
Aiba just giggles again and tells him to clean up and go to sleep.
Jun ignores it all until a soft touch on his cheek makes him open his eyes. Aiba is standing beside his bed, tickling a tissue along his face. "Good night, Matsujun," he says when Jun takes it. Jun swipes at the mess he's made in his pajamas and watches Aiba get back in bed, roll over, and apparently drop right off to sleep.
Nino crawls back in to the bed with him and Jun…Jun lets him. He even lets him curl up close in spite of the way that Nino insists that this is really, absolutely, totally gay.