h_itoshi | [Christmas Gift Fic] #15 - Jealousy is for the weak. Or something.

Title: Jealousy is for the weak. Or something.
Prompt: #15 - Getting jealous
Wordcount: 2179
Notes: NC-17 for unprotected bathroom sex. Mentions of Yamapi/Nikaido. AU.

Senga is not a jealous person. He doesn't believe in being jealous, because in his world, that means you don't trust your partner not to cheat on you. And he doesn't mind Nikaido being around cute girls. It's like eyecandy, like a pretty spread in a fashion magazine. He doesn't even mind when Nikaido's being particularly sweet to pretty boys, because then he knows Nikaido's only trying to make him jealous, knows that Nikaido glances at Senga every other second to see if he reacts.

He only smiles at times like that, commenting later that that had been a pretty guy, and it's Nikaido's eyes that darken instead.

But tonight, Senga finds it pretty difficult to keep to his principles. It's New Year's eve, and they're at a party at Tamamori's place. There's champagne and good company and music and awesome food, like a real adult party. Senga's not even too drunk, just a pleasing buzz that doesn't bother his thinking but loosens his mouth a little. He's chatting with Miyata, Tamamori's secret boyfriend, and they manage to talk about almost everything and get down deep.

“But... Doesn't it feel a little bad? Doesn't it hurt that he can't officially be with you?” Senga asks as Miyata explains why their relationship is secret.

Tamamori is an actor after all, of rising fame, and his reputation as hot sexy actor won't gain anything if it comes out he already has an otaku boyfriend instead of being all available for girls.

“Not really, it's his career, I don't feel the need to interfere with that.” Miyata shrugs with a small smile. “I know he's mine, there's no point in trying to prove it to everyone.”

“... That's a really good point.” Senga nods before sipping more champagne. “You're a good guy Miyacchi.”

“Thanks.” Miyata smiles, before rising. “I'm just gonna get a new drink, I'll be back.”

“Sure.” Senga smiles back before shifting his gaze to Tamamori's living room floor, which has turned into a temporary dance floor. It's big enough anyway, and Senga's struck with awe when he thinks about his high school classmate being able to afford his own flashy house. Senga's stuck in university, sharing a small apartment with Nikaido, and with seemingly no future possibilities of ever buying a house like this. But he's happy with things as they are, so it doesn't really matter.

He looks at the dancers, at filming people of all sorts of degree, at some of Tamamori's new friends and some of his old. They're all so fancy, and Senga's happy Tamamori invited him and Nikaido to this sort of thing.

“Of course you should come, I want some fun people there too!” Tamamori had laughed at him when he'd asked if it was really okay.

Then his eyes find Nikaido and something dark twists within him that he's never really felt before. Nikaido's dancing with that actor-senpai Tamamori's been flailing all over about, the one with a body that's so well built it's ridiculous, and he has a pretty face. Yamashita, Senga thinks his name is.

He's wearing a simple black T-shirt and jeans, looking underdressed compared to the suits and sparkly dresses of people around him, like he just happened to pop by, but those jeans fit him really well, and that T-shirt does nothing at all to cover the muscles of his torso. It's like he's dressed to get laid.

Nikaido's got his arms lazily draped over Yamashitas shoulders to be able to talk to him, laughing beatifully at something he says as they're swaying together in time with the beat of the music.

And while Senga normally doesn't have a problem with Nikaido flirting with hot guys, he figures now that he does have a problem with this. A hot guy flirting with Nikaido and succeeding is something completely different, the way Nikaido smiles at him like he doesn't even remember Senga's in the same country stirs something within Senga that makes him want to punch Yamashita straight in the face, famous actor or not.

His jaw drops and his hand grips tighter on his glass when Yamashita lays hands on Nikaido's hips, pulling him just the tiniest bit closer, and leans forward to talk in Nikaido's ear.

Nikaido just laughs at whatever he's saying, that beautiful smile remaning on his lips and that's it. Senga sets his glass down and stands, hesitating for a half a second before heading towards them.

He grabs Nikaido's arm, the one closest to him, and tugs it off Yamashita's shoulder, and Nikaido looks up at him with a shocked face, maybe a little drunker than he should be.

“Come.” Senga urges, because he might actually hit Yamashita if he doesn't get his hands off Nikaido right this second.

“Hey, what are you doing?” Luckily Yamashita lets go of Nikaido to turn and frown at Senga, looking like what's your problem, but Senga only glares back and tugs at Nikaido's arm again.

“It's okay.” Nikaido says, voice surprised. “He's my boyfriend.”

Yamashita doesn't look too happy to hear that, and Senga can't help but smirk as he pulls Nikaido away, towards the closest private space which turns out to be the bathroom out in the hall.

Senga slams Nikaido against the tiled wall the second the door is closed and fists hands in his shirt, not really sure what possesses him but knows that he wants to show Nikaido just whom he belongs to.

Nikaido's eyes are wide in surprise, like he can't believe what's going on, and it looks so innocent and hot that Senga crashes their mouths together, the back of Nikaido's head hitting the wall from the force.

Nikaido's having trouble keeping up, trying to kiss back for a few moments before he just parts his lips and lets Senga have his way with him, and that only makes Senga's blood burn hotter.

His hands harshly move down Nikaido's chest to settle on his hips, like he can remove the memory of Yamashita's touch if he does, and he doesn't miss the faint moan that Nikaido never gets to voice.

Curiously Senga lets one hand trail lightly over Nikaido's crotch, surprised to find him more than halfway hard already. The thought crosses his mind that it might not be all his doing, and he sees red, his hand moving up to grab Nikaido's hair and tilt his head roughly to latch his mouth onto Nikaido's neck instead.

Nikaido whimpers at the harsh treatment, but judging by the way his hips give a thrust on their own, the way his hands clutch onto Senga's shoulderblades desperately, it's in a good way.

Senga has to control himself when unbuttoning Nikaido's shirt so he doesn't simply rip it open, mouth sucking a dark mark into the skin beneath Nikaido's ear, and the warm scent of his cologne mixed with some shampoo is intoxicating.

“Kento...” Nikaido gasps, still sounding astonished, but he doesn't continue, and Senga pushes his shirt apart, lips leaving his neck to pick up their work at Nikaido's collarbone instead, this time gentle kisses and small bites.

Senga's hips rock into Nikaido's on their own, and this time Nikaido's moan goes unmuffled, sending a shiver down Senga's spine. The want spreads all over Senga's skin, sending tingles through his fingers as they hook in Nikaido's waistband.

“I want you.” He says in Nikaido's ear, just making sure it's okay. They don't do it this way very often.

Nikaido nods breathlessly, eyelashes fluttering as Senga licks at the shell of his ear. “Have me.”

Senga manages to tear his hands off of Nikaido long enough to raid Tamamori's bathroom cabinet for lube, entirely unsurprised when it's the first thing he sees upon opening it. When he turns back with the tube, Nikaido's unbuttoning his pants with shaky fingers, and Senga can't help but kiss him again. Nikaido groans into Senga's mouth as he gets a hand around himself, but Senga slaps his hand away so he can guide Nikaido out of one leg of the pants and underwear.

Nikaido's hand is back on his own cock as Senga pushes the first finger into him, and it's a good thing they're already kissing, or Nikaido's moan could probably be heard through the wall.

He stretches Nikaido thoroughly, but it's not difficult to take his time with the way Nikaido moans and whimpers into his mouth, the way his hands claw on Senga's back and a small sweat is breaking out on his skin. Nikaido's probably never been this desperate and it's so fucking sexy Senga's not sure he's gonna last very long at all, especially not when he finds the right spot and Nikaido falls out of the kiss with a low whine of pleasure, face a picture straight out of a porno.

Senga pulls his fingers free and hisses when he shoves his own pants down to his thighs, his cock hard and leaking and aching for contact, and he strokes himself a few times with his lubed hand, sighing at the relief.

Nikaido makes a small, impatient sound, and Senga positions himself, not bothering with a condom because he doesn't care and Nikaido doesn't seem to either, and holds Nikaido's hips as he presses inside.

Nikaido bites his lip, chest heaving as he tries to breathe and relax at the same time, and Senga stays still despite wanting nothing more than to fuck him into the wall, the tight heat almost good enough but still not at all. He strokes Nikaido's cheek gently with one hand, and Nikaido leans his head into the touch, releasing his puffed lower lip from between his teeth and finally relaxes.

“Okay?” Senga asks, giving a tiny thrust to test it out, and Nikaido only nods frantically.

Senga braces one hand against the wall as he starts moving, breath coming faster as Nikaido's body welcomes him with every thrust, little sounds of encouragement falling from Nikaido's lips as the initial discomfort evolves into pure pleasure.

The position isn't very good, and it doesn't take Senga more than a few minutes to reach down with both hands and grab Nikaido's thighs, hoisting him up and pressing him into the wall with his entire bodyweight, and Nikaido lets out a cry that he quickly slams a hand over his own mouth to muffle as Senga hits him just right.

It feels amazing, the way Nikaido tightens around him with every thrust, writhing against the wall, and even though it's a bit heavy holding him up, it's worth it. Senga is completely postitive he won't last long at all, not with the way it feels and the way Nikaido looks lost in pleasure.

“Touch yourself.” Senga manages and Nikaido nods, opening his eyes long enough to look at Senga and wrap a hand around his cock, but then they fall closed again as he starts to stroke himself. Senga has to bite Nikaido's shoulder to muffle his own escalating noises when Nikaido gets so much tighter around him, and he barely feels Nikaido's body go rigid with orgasm before he comes hard himself, mind going blank as he gasps and shudders.

When he can think again, his hands are shaking and he lets go of Nikaido's legs, which have pink marks where Senga's hands were and he feels a little guilty.

Nikaido winces as he pulls out, and Senga is about to apologize. But then Nikaido makes a face of discomfort and glances down, and when Senga follows his gaze he sees a trail of his own come running down the inside of Nikaido's thigh, and he forgets how to make words.

Nikaido grabs on to the towel drier with one hand to remain standing, thighs trembling. “I... Wow. Fuck, Kento, I...”

He doesn't seem to get together a full sentence, and Senga feels a little smug about it as he looks for some tissues to clean them up.

He fixes himself first, pulling his pants up and refastening them before dropping to his knees before Nikaido to help him out. “That good, was it?”

“Yeah.” Nikaido says, working on regaining his proper breathing pattern. “I didn't think you ever got jealous.”

“I didn't either.” Senga leans in to lick at the trail of come on the inside of Nikaido's thigh, causing him to gasp, and it makes a content feeling of possession settle within Senga.

“Guess I'll have to make new friends more often.” Nikaido laughs breathily, and Senga frowns and throws the tissues at him to fix himself up.

They manage to make themselves look somewhat decent again, even though Nikaido's got a big lovebite on his neck and the flush doesn't seem to want to leave Senga's cheeks.

It's not until they're ready to leave that Nikaido notices that the door is unlocked, scolding Senga about it with slight panic in his voice because 'What if someone came in?!'

Senga never tells him he left it unlocked on purpose.