Chapter Text
Mattsun is staring at a shelf of condoms and all he can think, over and over, is 'we rushed into this.'
Oikawa and Makki are up at the counter, ringing up their purchases, and Iwaizumi's outside refilling the car's tank. Mattsun had wandered off on his own a few minutes after entering the little one-stop corner shop. It smells lonely in here. Gently used and out of the way.
'I don't really know what anyone else is expecting out of this.'
Ribbed for her pleasure!
'How the hell is this even going to work? Four people? What was I thinking?!'
Latex-free!
'Is this just going to crumble as soon as we all head off on our own ways? God, what- how the hell am I going to-'
Extra thick for ensured protection!
'How the hell am I going to deal with them gone?'
"Mattsun?"
He feels like his heart just catapulted into his mouth. "Jesus fucking- what?"
"We're all done here," Oikawa says, blinking over at a particularly garish purple box. He blushes spectacularly. "Unless there's still something you wanted to, um, purchase..?"
"No," Mattsun mumbles, mortified. He hadn't even meant to stare at all this. He had just happened to space out in front of them. "Let's go."
A hand on his arm stops him from stomping embarrassedly away. "Are you sure?" Oikawa asks quietly.
Mattsun stares at him. "I don't..." He doesn't what? Doesn't know? "I don't want to take this that fast," he blunders, trusting Oikawa will fill in the gaps of this conversation and understand what he means by that.
Oikawa visibly deflates with relief. "Oh, me neither," he says, and hooks his arm through Mattsun's, leading him out of the empty, still-aired store.
Mattsun thinks of the lingerie in Oikawa's closet. He wonders why Oikawa even owns that. He wonders who Oikawa would let see him in that. He wonders if he could be one of those people.
Then they're outside, and he decides it doesn't really matter.
Oikawa's warm where he's pressed against Mattsun's side, shoulder just barely lower than his own. Oikawa has the habit of making himself seem like the tallest person in the room. Even out here, where the two inches between them is more noticeable, Oikawa still commands and demands attention upon himself.
And Mattsun is going to give that to him no matter what Oikawa wants to do or wear.
"Wait... you haven't kissed Iwa-chan yet? Didn't you do that yesterday?" Oikawa's eyes are large and bright.
"No, actually I was... um... too busy watching you..." Mattsun rubs the back of his neck.
Oikawa crawls a little closer on the couch. Mattsun feels a myriad of shivers dance up his arms. His knees fall a little wider apart on their own. Oikawa fits nicely between them.
He is very, very close.
"Am I really so fascinating?" he chuckles breathily. He knows the answer.
"Yeah," Mattsun whispers, and Oikawa smirks before tapping underneath Mattsun's chin with a fingertip. His heart jumps in giddy anticipation.
Iwaizumi and Makki clank around in the kitchen, oblivious.
Oikawa presses his thighs around Mattsun's hips and his lips against Mattsun's pulse. Dust motes dance around his hair in the subtle green-gold glow from the sliding doors between them and the kitchen. The single bare bulb above their heads casts faint shadows down Oikawa's face, making it seem just a little longer.
Mattsun gently tips that face up to press their lips together.
"THEY'RE MAKING OUT!" Makki screams at the top of his lung and Mattsun accidentally bites Oikawa's lip so hard it starts bleeding. Iwaizumi swears loudly, fumbling with the carrot he's washing in the sink like it's a bar of soap, eventually shooting it from his fist straight onto his own foot. Makki positively shrieks with laughter.
Oikawa arcs backward and whines, dabbing at his bottom lip and wincing as his fingers come away sticky with blood. Some of it smears down his chin. He tries to lick at it.
Mattsun's stomach clenches strangely at the sight.
Oikawa's legs are still tight around his hips.
In the kitchen, Iwaizumi slowly picks the carrot up off the floor, gently places it in the sink, and suddenly whips a wet sponge with all his strength at Makki's stomach. It hits with a slapping sound that fills the whole cabin and only serves to make Makki laugh even more wildly, even though he's now wheezing and doubling over in pain.
Mattsun reaches up and pulls Oikawa's hands away from his face, staring at his bruised lip.
Makki wipes tears from his eyes and halfheartedly flings the sponge back up at Iwaizumi. He easily catches it.
Oikawa's eyes flutter between Mattsun's hands and face as he cautiously stills.
Iwaizumi grumbles to himself and goes back to washing the newly dirtied carrot. Makki stumbles upstairs, still giggling, to change out of his drenched shirt.
'I did that,' Mattsun thinks curiously to himself. He's neither disgusted nor particularly impressed with this fact. A simple interest, at the way the dark crimson lazily wells up on broken skin in neatly-spaced teeth marks, is all he holds.
Oikawa nervously licks at it, and Mattsun knows he's now stared long enough.
"Didn't know I could do that," he says simply, and releases Oikawa. Oikawa, however, doesn't pull away.
"Do you want to lick it off?" he blurts.
Mattsun's entire brain seems to stumble at that. "I- what?"
"Well- you- some people are into that, and you seemed intrigued by the whole thing, so I wondered," Oikawa spills. He nervously laughs. It seems forced. "We can pretend I never brought it up."
Mattsun takes a second to consider licking Oikawa's own blood off of his mouth, and decides he's definitely not interested. "Yeah, let's forgot it and get you cleaned up," he says firmly.
Oikawa is clearly relieved. "Okay."
As Mattsun follow him to the bathroom, mostly because he still feels responsible for causing him harm and wants to see him patched up well, he wonders why Oikawa would offer such a thing if he wasn't even comfortable with it himself.
Unfortunately, he thinks he knows the answer already.
Makki is outside, and Mattsun can see him giving Oikawa his ten-thousandth "I'm sorry for making Mattsun bite your lip" kiss in the pale moonlight. Oikawa looks really good in Iwaizumi's hoodie. They're both enjoying the atmosphere of a pleasant summer night and each other's presence, swaying in slow circles to the ceaseless song of crickets, and Mattsun has no qualms with keeping that sliding door closed for now.
Iwaizumi yawns and comes up to stand next to him. He's got a new nick on his thumb. Mattsun wonders if he cut himself earlier preparing dinner, but didn't want to draw attention to himself.
He thinks that while Iwaizumi and Oikawa are similar in their need for attention in many ways, in this instance they are polar opposites.
"They look happy," Iwaizumi remarks quietly, leaning comfortably on Mattsun's arm. Mattsun slips it out from underneath him and around his shoulders instead. "What are your plans for tonight?"
Mattsun scratches his chin and squints, pretending to be deep in thought. "Hmm... I was thinking about kissing a very handsome man, but I should probably ask if he wants to..."
Iwaizumi reddens. He shifts so they're facing each other and settles his hands on Mattsun's hips, and takes a step forward so Mattsun has to go back, and keeps going until he's got Mattsun's back against the wall next to the staircase.
For all his boldness, he's too shy to look Mattsun in the eyes. It's incredibly endearing.
"I think this very handsome boy is probably okay with you kissing him," Iwaizumi murmurs, voice husky.
Mattsun's stomach swoops down to his knees before springing back up. He masks it with a small laugh and links his fingers behind Iwaizumi's neck.
Iwaizumi's mouth is searingly hot.
Mattsun can feel every point of contact between them, the fingers hooking into his belt loops, the chest brushing his own, the flushed heat of Iwaizumi's neck against his hands, and the thrilling slickness of the tongue currently pressing purposefully to the roof of his mouth.
Mattsun can hardly keep his eyes open, but closing them makes everything else so intense he feels like his knees will give out.
Iwaizumi in insistent upon something. Mattsun finds out what it is when he finally lets a whimper slip free and Iwaizumi grins triumphantly against his mouth. Mattsun desperately presses back against him. Something is writhing in the hollow just below his stomach and it won't settle down.
Iwaizumi makes a bit of a surprised noise when Mattsun's hands leave his neck only to reappear on the bare skin of his back, rucking his shirt up. He doesn't stop, though. If anything, it only gets him more riled up. He pants harshly and trails heavy, wet kisses away from Mattsun's mouth to his neck.
His pauses then, lips resting against Mattsun's wild pulse. Mattsun can feel Iwaizumi's heartbeat against his own chest. It's going a mile a minute.
"Actually... this is enough for tonight," Iwaizumi exhales shakily.
Mattsun can't say he's outright shocked, but he is a little taken aback. "Do you want to go back to regular kissing?"
Iwaizumi mulls it over. Mattsun removes his hands from Iwaizumi's bare skin and lets him think. "Yeah. It's late though. Maybe we should just get ready for bed and go... make out until we get too tired to keep going once we're in there."
"Good plan," Mattsun hums, glancing outside to where Oikawa and Makki are still lost in each other.
Iwaizumi is hidden mostly in shadow back here, so far away from the glass-filtered luminescence of the outdoors. "I- uh- I want to just-" He's silent for a long moment. Pale, weak moonlight touches the tip of his nose like a trailing fingertip. Skeletal. "I don't think you should expect something like what just happened again. I mean- not never again, just not... soon."
Mattsun considers him. "Was it one of those things where everything was good until you hit a certain point and it suddenly just wasn't?"
"Yeah," Iwaizumi says, a tiny smile twitching on his cherry lips. "I just moved too fast."
"Mm." Mattsun looks down at his feet, not sure why he's now the one suddenly too shy to look at Iwaizumi. "I said kind of the same thing to Oi- to Tooru earlier. I'd like to take this slower than I think we have been."
"What do you mean?" Iwaizumi asks, not accusatory, just curious.
Mattsun scuffs his toes on the rough wood floor. "Well, it's just... most people wouldn't be making out like that just days into their new relationship, would they?"
"I don't know, would they?"
Mattsun blinks back up to him. "I-" He can't finish.
Iwaizumi smiles softly. "I get it. You think we're rushing things?"
"...yeah. I do. It makes me worried." Mattsun fidgets with his own fingers. "I don't know how strong of a foundation we really have to be doing the things we're doing."
Iwaizumi leans his shoulder against the wall next to him, arms loosely crossed. "There's not really a set of steps anyone has to follow when they're dating," he starts. "You don't have to have a certain amount of- of romance points, or something, in order to unlock things you can do with your partner. Or partners. You don't have to spend a certain amount of time with someone before it becomes acceptable to do something if you're both already comfortable with doing it. Does that make sense?"
Mattsun nods silently. It does. He just worries, almost incessantly, about that damn blurred line.
"Plus, we know each other, Issei," Iwaizumi continues softly. "I've known Oikawa since before I can remember, you've known Takahiro for what, five years? And we've all known each other for three." He nudges Mattsun with his elbow. "Don't worry about not having strong foundations anymore, okay? We have them already."
Mattsun takes a moment to process, turning the words over and over, trying to find flaws in their rough, sincere surfaces. He finds none.
"Three years is a long time," he concedes.
"It is," Iwaizumi smiles, and he reaches up to cradle the side of Mattsun's face and pull him down, and kisses him on the corner of his mouth.
It's the sweetest thing Mattsun's ever tasted.