Archive of Our Own

Iwaizumi walks into his apartment and groans. Not again.

Oikawa and Kageyama are on the sofa, wrapped up in each other, kissing passionately. They're practically glued together. The laptop is on, Netflix is playing a movie. Iwaizumi recognizes it. It's an alien movie, one of Oikawa's favorites, and he's not even paying attention.

Iwaizumi huffs, wiping the sweat off his forehead as he gulps down massive amounts of water.

He went for a simple run--he tries to do one in the morning and one in the evening everyday-- and in the 15 minutes that he'd been gone, Kageyama had apparently woken up and Oikawa had invited himself over. Because that's what happens when your best friend has the key to your apartment and is dating your roommate. Or sleeping with him. Or something.

They are so busy with each other that neither of them has noticed him walking in.

If you'd told Iwaizumi three years ago, that Oikawa and Kageyama would be getting along well enough to be sticking their tongues down each others throats, he'd never have believed it. They used to be unable to stand each other. After all, they were rivals--enemies, even. Nobody could've predicted this. That they would meet again, in college, on seperate teams and eventually realize what they had in common was more important than the tension they once had.

And Iwaizumi definitely wouldn't have thought this was the way they'd get physical. He would've pictured them as more of an angry, hate sex, I'm-gonna-bang-you-in-the-locker-room-cause-I-hate-your-guts, type of pair. Not this--the two of them curling up together at 6 am in sweatpants (Oikawa) and the flannel boxers that had been slept in (Kageyama), Oikawa sitting between Kageyama's legs and leaning against him, kissing slowly. Kageyama has little to no experience but he's eager, the way he touches Oikawa with fingers skimming any bare skin he could find and clenching in Oikawa's shirt which he then removes. They are hungry for each other but not greedy. Striving to keep up with each other, returning acts of affection with more affection.

Neither wants to let go.

Oikawa's hands are stroking his silky pitch black hair and when he pulls away he regards Kageyama with a tender gaze Iwaizumi has never seen him give any of his past boyfriends. Not that Kageyama can see; his face is buried in Oikawa's neck, biting gently. Oikawa spots Iwaizumi out of the corner his eye. Oikawa's heart lurches. He feels an odd squirm of guilt. "Oh, Iwa-chan, I didn't see you there!"

"Went for a run," Iwaizumi explains, striding across the room from what they deemed the "kitchen" half of their tiny apartment to the "living room" half. "You two look like you're enjoying yourselves."

"You jealous, Iwa-chan?"

Iwaizumi's hand clenches around the water bottle. "No." It isn't a lie, not really. He couldn't care less about what they do. It's just strange, unnerving, to see the two people he cared about most doing things, well, without him. He isn't sure who to be jealous of: Kageyama, for capturing his best friend's attention? Oikawa, for seducing his cute former kouhai who is actually a pretty decent roommate and friend? Iwaizumi changes the subject. "I thought you were supposed to be at practice."

"Practice got cancelled so I decided to visit you guys." Oikawa casually slings an arm around Kageyama. "Besides, there's plenty of time to practice later, you'll be there, right Iwa-chan?"

"Whatever."

"Actually, he said he'd practice with me this afternoon," Kageyama cuts in. "Didn't you, Iwaizumi-san?"

"Yeah, I did," admits Iwaizumi. "Sorry, Oikawa, looks like I'm booked."

Oikawa stiffens. He gives Kageyama a dirty look. "Well," Oikawa crosses his arms. "He's my best friend." 

"But Tooru, I asked him first."

They stare each other in the eye, both stubborn. "You can both have me," Iwaizumi says. "No need to fight." But they aren't fighting anymore, simply staring each other in the eye and then Oikawa relents. "You sneaky bastard." Kageyama grins. They're kissing again now. Iwaizumi rolls his eyes.

He knows he needs to go and shower but he stands there, watching from the sideline, munching a granola bar as an excuse to stay in the vicinity. For some reason Iwaizumi's eyes are fastened to the sight (and the sounds) of his friends enjoying each other's company. He's not being voyeuristic, it's just a bit of making out and anyway why do it out here unless they didn't mind being seen?

Kageyama is running his tongue along Oikawa's collarbone, when he sees Iwaizumi staring at them. Their eyes meet. Iwaizumi quickly looks away, pulling out his cell phone. Kageyama keeps looking at him, it does seem strange that Iwaizumi's over there by himself, flipping through his phone, and as far as Kageyama could see there was one solution.

"Join us," Kageyama blurts loudly.

Iwaizumi looks up. "...what?"

"You can join us."

Oikawa and Iwaizumi both freeze. They're all silent, the only noise is the movie on the laptop, still playing, a soundtrack of people screaming that feels oddly appropriate for the shock in Iwaizumi's head.

Oikawa looks just as shocked as Iwaizumi feels, but then his face smooths into a smug expression. "That's a great idea, Tobio-chan." He shuts the laptop with his foot, cutting off the screams of people being devoured by aliens. He untangles himself from Kageyama and turns to stare at Iwaizumi, his eyes glimmering. "Why don't you join us?"

"What are you saying?"

"Come on, it'll be fun." Oikawa says.

"...me? Are you sure?" Iwaizumi's heart beats very fast. His brain can't process the situation but his body betrays his wants; his feet are already carrying him halfway accross the room.

"Obviously. Oh, did you know Tobio had the biggest crush on you in middle school?" Kageyama glares and smacks Oikawa on the shoulder. "Ouch! Well it's true, isn't it? He was always following you around and everything."

Oh. He'd thought Kageyama had a crush on Oikawa, but yes, thinking back to those days, Kageyama did tend to follow them around. A lot. "...you don't have to do this."

"You insult me," Oikawa says. "I never do anything or anyone I don't want to do."
And hell, does he want. On some level, he'd always thought Iwaizumi was attractive but now, faced with the chance to do something about it, he's burning with anticipation.

"Iwa-chan," Oikawa says in a completely serious voice, his brown eyes boring into him. "Come here."

Slowly, he crosses the room, heart banging around in his chest.

Oikawa grasps his wrist, his hand is firm and dry and Iwaizumi has kind of always liked Oikawa's hands for some reason. "But...I'm sweaty."

"Who cares," says Kageyama, shuffling to make space for Iwaizumi.

Oikawa pulls him. Iwaizumi finds himself nestled between the other two, with Oikawa blatantly throwing his legs over Iwaizumi and Kageyama scooting close enough that their sides touched."You have nice arms," Kageyama says, quietly, plainly. Just a fact, not meant to be seductive. He runs his fingers over Iwaizumi's sweaty biceps, sending shivers down his spine.

"He does, doesnt he?" Oikawa says, and unlike Kageyama he actually intends to be seductive. He trails his fingers down Iwaizumi's arm and finds his hand. He rests his hand on top of Iwaizumi's. Kageyama leans in and pecks him on the cheek. Iwaizumi turns and puts an arm around Kageyama and touches the small of his shirtless back, his fingers landing on smooth unclothed skin. Kageyama moans, placing his own hand on Iwaizumi's chest and when he leans in to press his own body against Iwaizumi's, there's a barrier of cloth between them.

"Iwaizumi," he says, brushing against the fabric of Iwaizumi's sleeveless top. "You have to take your shirt off. It's not fair." He's the only one with a shirt on.

Iwaizumi's eyes widen. Oikawa snickers, removing his mouth from Iwaizumi's shoulder. "Yeah, Iwa-chan, it's not fair."