Thread by @KHShip910

#NSFWSktsWeek2023 Day 5: Intimacy

Atsumu is horny in the morning.

Deep down, this does not come as a surprise. Kiyoomi knows Atsumu has a level of horny that is constant, somewhere below simmering, twenty-four hours a day. For the past two weeks they’ve been dating each other +

he’s gotten even more proof, in the way Atsumu can’t keep his hands off him, any time, any place, settling for kissing him so hard it takes his breath away when Kiyoomi tells him no, he won’t fuck him in a locked storage closet or an empty bathroom stall. +

Kiyoomi has never tested the “in the morning” part. Atsumu hasn’t spent the night. Not yet. When Atsumu makes his declaration, loudly, under the influence of warm sake and even warmer thighs wedged against each other in the booth of the izakaya, +

Kiyoomi can’t help himself, the shit stirrer that he is. He demands proof.

The next morning he gets what he was promised.

He still has his eyes closed when Atsumu’s cock starts rubbing into the space beneath his ass and between his legs, +

hard as hell and throbbing so strongly Kiyoomi can feel it through two layers of fabric.

“Y’cant do this t’me,” Atsumu pants. “Wearin’ shit like this.” He pulls down the collar of Kiyoomi’s t-shirt and starts nibbling at the nape of his neck, +

continuing to drag his hips against Kiyoomi’s ass. “So fuckin’ sexy. D’ya even know what y’do t’me? You bastard.”

“I’m wearing pajamas,” Kiyoomi says, stretching his arms to the ceiling, arching his back as he wakes up fully. “That’s not—” +

/Sexy/, he wants to say next, but Atsumu’s already taken his outstretched arms and used them to flip him onto his back. He’s pinned his wrists beneath his hands, and he’s kneed this thighs apart to slot himself between them. +

Kiyoomi’s still blinking sleep away from his eyelids when Atsumu starts kissing him. He must have brushed his teeth surreptitiously as Kiyoomi slept.
His mouth is minty fresh, as if he knew any other option would be unacceptable. /Good boy./ +

Atsumu kisses like a devouring fire, and Kiyoomi has gotten lightheaded from a lack of oxygen more than once in the less-than-a-month they’ve been kissing. Morning Atsumu is even more ferocious, like when Naruto’s fully in Kurama mode and like, a huge-ass glowing fox made of--+

“Why are y’laughin’?” Atsumu asks, pulling back from the kiss and smiling at Kiyoomi like he hung the stars. “Nothin’ funny ‘bout how much I wantcha.” He follows up the statement with a grind of his hips that brings their hard cocks together. +

Kiyoomi moans. He hadn’t even realized he’d been giggling through their kiss. “Silly thoughts,” he gasps, as Atsumu pulls up his shirt and begins tonguing his nipples. “Guess I’m silly in the morning.”

Atsumu hums into where he’s begun biting a bruise into Kiyoomi’s chest. +

“Y’can be as silly as y’want, as long as I get t’fuck ya,” Atsumu says. His hips haven’t stopped jumping against Kiyoomi’s cock, his leg, his perineum. “I needja so fuckin’ bad, Omi, I can’t, I can’t stand how much I needja, fuck, y’re so fuckin’ beautiful, all soft an’ sleepy +

an’ I can’t fuckin’ handle it.”

Kiyoomi wants to respond, but his back is arching, and his wrists are pinned, and it shouldn’t be so hot, but it is, and all he can do is let Atsumu rut against him and lick every bit of skin he can reach. +

“Okay, okay,” he agrees, content to let Atsumu have his fun.

Atsumu scrambles to the bedside table, and grabs the lube and a condom, or at least that’s what Kiyoomi assumes is going on, as he rampages through the books and sleep masks and maybe some flashcards +

from when Kiyoomi was learning French. It’s been a while since he cleaned out his nightstand. Kiyoomi hears him curse quietly, and maybe something knocks to the ground, but he’s sleepy, and maybe he could just… +

“Fuck, Omi, where’re y’r condoms, I can’t find shit in here.”

“Underneath everything, probably, and if you can’t find any there’s some in my bag,” Kiyoomi yawns. His bed is warm and soft and he’s so, so happy.

“Aha!” Atsumu crows, and Kiyoomi smiles at his triumph. +

“No, no, no,” Atsumu admonishes, as he pushes Kiyoomi back on his back. He must have curled up at some point? “No sleepin’.”

Kiyoomi’s still smiling, as Atsumu throws the covers over his head and shimmies down the bed. +

The smile melts off his face as Atsumu pulls down his pajamas and sucks his half-hard cock between his lips. “Oh fuck,” he says, his hips bucking into Atsumu’s hot, wet mouth. He’s never woken up like this, not that he was asleep before. He’s just /definitely/ awake now. +

He faintly registers a wet fingertip at his entrance, and he doesn’t mind, so turned on by the way his dick is being deep throated. Atsumu sinks his whole finger inside with zero resistance. Kiyoomi raises his hips, riding Atsumu’s finger and fucking into his mouth. +

He’s unable to control himself. “Yeah, shit, fuck, Atsu, oh God yes, oh fuck, fuck me,” he babbles.

Atsumu slides a second slick finger into him, and Kiyoomi is already close to coming, something about the warm bed and the early morning, and Atsumu’s insatiable appetite. +

“Atsu, close,” he gasps, as Atsumu’s fingertips tap at his prostate insistently.

Atsumu pulls off his dick with a final kiss. “Wantcha t’come on my cock,” he says, spreading his fingers. “Y’re so open f’r me, Omi, think y’can take it?”+

Kiyoomi writhes at the idea of Atsumu’s cock stretching him wide. “Go slow,” he whispers.

Atsumu’s already on his knees, already has the condom on, already is stroking lube over himself with a wet fist. +

He raises Kiyoomi’s right knee to his chest and holds himself by the base of his dick, lining up to Kiyoomi’s entrance. Kiyoomi licks his lips, his breath coming in harsh pants, as he feels the heavy weight of Atsumu’s cock against his hole. He shivers in anticipation. +

Atsumu is horny in the morning.

Kiyoomi didn’t know what he signed up for, with his challenge, all he knows is he’s been edged once already, and when Atsumu sinks into him, slowly, deliberately, filling him so deliciously, he finds himself rocketing to the edge a second time. +

“Fuck Omi, y’re so tight around me,” Atsumu pants. “Y’re so fuckin’ beautiful, can’t believe y’re mine, laid out like this for me—”

“Just for you,” Kiyoomi answers, trembling where Atsumu has him pinned, quivering at the words, +

all pretense thrown away in the safe and happy warmth of his bed, in the morning sunshine pouring through his window. He can’t play hard to get when Atsumu has his heart in the palm of his hand. “Atsu.” +

Atsumu’s breath hitches at the words, as if Kiyoomi has brought him to tears. Maybe it’s not his words after all that have him so affected. Maybe it’s just his body, the same body that can’t stop shaking as Atsumu bottoms out, hot and heavy where he’s inside him. +

“Y’feel so fuckin’ good,” Atsumu says, before he leans into him, kissing him again, pulling moans and sighs from Kiyoomi’s throat. Kiyoomi tastes his own cock on Atsumu’s tongue, and the saltiness shouldn’t taste /good/ but Atsumu makes it delicious, +

makes everything he does better somehow. Kiyoomi doesn’t know how that’s possible, some sort of magic or something, and the thought of Atsumu in a top hat and cape, maybe pulling a rabbit out of his hat with a flourish, has him giggling again, +

even though he can hardly inhale with the way Atsumu is kissing the breath right out of his lungs.

Then Atsumu starts moving, and Kiyoomi pushes at his shoulders so he can pull away and gasp instead. Atsumu’s so hard, harder than usual somehow. +

Maybe that’s why he’s so horny in the morning. “Oh fuck,” he moans, as Atsumu plunges back inside, mindless in his pursuit of Kiyoomi’s pleasure. He adjusts his angle, throws Kiyoomi’s leg over his shoulder as he rolls his hips into him. +

“Y’laughin’ again?” Atsumu grunts. He isn’t even out of breath.

Kiyoomi, on the other hand, is having a hard time figuring out how lungs work. He’s pressed under the weight of Atsumu’s body, his own knee nearly touching his chest, and the air won’t go where it’s supposed to. +

“Ah, ah, ah,” he moans, short little gasps, one with every thrust of Atsumu’s cock, as it’s buried deep inside him, over and over again. “Fuck, right there,” he nearly howls, his voice high-pitched and unrecognizable. +

“Y’like it Omi?” Atsumu growls, as his hips jump faster. He can’t stop himself from kissing Kiyoomi impatiently, unwilling to wait for an answer. +

Kiyoomi answers him in a muffled moan, his hands wrapping around Atsumu’s back to hold him closer, as if his fingernails can answer for him, scratch his words into his skin, can tell Atsumu yes, yes I like it, yes, it feels good, fuck, I love it, I love you inside me, I love-- +

“Omi, tell me,” Atsumu says, breaking the kiss to whisper in his ear, before biting into his neck, licking and sucking and driving Kiyoomi wild.

Kiyoomi can’t help himself. He’s so close, Atsumu’s incessant pounding driving him to the edge. +

He whines and writhes and cries out. “Atsumu I--”

“Yeah, yeah Omi? Tell me. Tell me, baby.”

Kiyoomi’s eyes fly open, find Atsumu’s staring back at him. He’s unable to look away. “Atsu, I—"

“Come for me,” Atsumu demands, his words even, his pace unforgiving. +

Kiyoomi’s toes curl, his nails dig into Atsumu’s back, and his eyes roll back into his head as he comes, so hard he sees pinpricks of static burst like fireworks behind his eyelids. He makes an incoherent sound as Atsumu slows, letting him ride it out without overstimulation. +

“Fuck, Omi, y’re so fuckin’ beautiful,” Atsumu says, kissing his lips, kissing his jaw, kissing his neck, kissing his collarbone. Kiyoomi’s drifting off, but not to sleep, to a different place, one even more happy and warm and satisfied. “I love ya so fuckin’ much.” +

Kiyoomi wants to have a moment of terror, wants to know what the fuck is going on, but his brain is offline, and so he answers from a place of truth instead of rationality. “I love you too, Atsumu.”

“What?” Atsumu says, the word choked off and garbled. +

He slows the movement of his hips all the way, coming to a stop. “Omi?”

Kiyoomi opens his eyes. They’re so heavy he can only get them halfway. “Yeah?” he asks, as Atsumu lowers his leg. He slips out, and Kiyoomi frowns. He might have come, but he’s not /done/, what's happening?+

“Something wrong?”

“Y’love me?” Atsumu says, and Kiyoomi smiles stupidly. Atsumu’s hair is standing up on one side, his eyes are watery and his lips are kissed pink and swollen. He’s got red scratches over his shoulders, +

and if Kiyoomi could see his back, he knows it would be a wreck. He looks like he’s been in a fight. /I beat the shit out of him./ Kiyoomi can’t help it. He laughs, a low, fond chuckle.

“I love you,” he says. He’ll repeat himself as many times as it takes. +

“Omi,” Atsumu gasps, and it’s watery with emotion. “Are y’just bein’ silly some more?”

“No,” Kiyoomi says, pulling himself up to a sitting position, so he can be more awake for the conversation. “I’m not being silly. I love you.” +

He leans forward, to put his hands in Atsumu’s hair, to pull him closer.

Atsumu rubs at his eyes. “I just can’t fuckin’ believe I get t’be with you,” he says, as Kiyoomi kisses away the tears that have dripped down his cheeks. “I love ya so much.” +

“I keep telling you,” Kiyoomi says. “Let me show you, too.” He guides Atsumu by his shoulders, easing him into the bed, laying him down on his back. Once Atsumu’s comfortable, Kiyoomi straddles his hips, and lines himself up. +

He sinks down on Atsumu’s cock, and it feels so good in this position, thick and deep and even more delicious somehow. Atsumu holds onto his hips with a death grip, as if Kiyoomi would leave and try to back out of what he’d signed up for. +

“Not going anywhere,” Kiyoomi promises, letting himself adjust to how full he is again, how tight he feels around the length buried inside him, even after being fucked open. +

“Don’t ever leave me,” Atsumu says, his eyes shimmering with love, melted gold held captive by thick lashes.

“I won’t,” Kiyoomi says. He rolls his hips forward, letting Atsumu’s length slide out of where he’s so deep inside. He presses himself back, so he can take him back in.+

“Oh fuck, Omi, y’keep doin’ that and I’m gonna come,” Atsumu whines, his hands vibrating where they’re glued to Kiyoomi’s skin.

“That’s the point,” Kiyoomi says, pulling back so he can plunge Atsumu inside himself. “That’s what I want.” +

“Then don’t stop, don’t stop,” Atsumu says, meeting each of Kiyoomi’s waves with a thrust of his own. “Don’t fuckin’ stop.” +

Kiyoomi’s properly bouncing his ass on Atsumu’s cock now, feeling him enter him over and over. He feels himself getting hard a second time. He takes Atsumu’s hand from his waist and wraps it around his cock. “Fuck, make me come again,” Kiyoomi demands, greedy and insatiable. +

Atsumu’s left hand finds the lube on the covers, and he squirts a messy glob on Kiyoomi’s cock. Kiyoomi hisses at the cold, but when Atsumu’s warm hand wraps around him again, slick this time, he keens, “fuck, yes, fuck, like that, like that, Atsumu, please.” +

“Close Omi, don’t know how y’do this t’me, fuck, gonna come baby, gonna come, I—”

Atsumu plunges in a couple more times, before holding himself inside and groaning. Kiyoomi slows his hips, circling them so Atsumu’s cock can press into his prostate, even as it goes soft. +

“Don’t stop, Atsu, please,” he begs, as Atsumu’s hand flies over his cock. “Right there.”

“Fuck, Omi, please, wanna feel you,” Atsumu says, giving little thrusts of his hips where he’s still buried deep inside. +

Kiyoomi can feel his second orgasm in his fingers and toes, a tingling coming toward the middle of his body, where Atsumu’s hand is stroking him faster, harder, tighter. +

The heat rises until it has nowhere else to go. “Ah,” Kiyoomi sighs, as he comes, oozing over Atsumu’s fist, clenching around Atsumu’s cock, milking him dry.

After he catches his breath, Kiyoomi slips Atsumu out of him, and collapses onto his side. +

Atsumu turns to him, careful not to get any of their mess on the sheets.

“Just forget it,” Kiyoomi says, running his hands over Atsumu’s glistening skin. “We already need to change the sheets.” +

That seems to be all the permission Atsumu needs to drag him close and press their bodies together. Kiyoomi feels the clamminess of their sweat and cum and tries to ignore the sticky sensation. +

He’s wrinkling his nose and furrowing his brow, and now Atsumu is laughing, as he kisses his frown away. “Omi,” he giggles. “I love you.”

“I love you too,” Kiyoomi says, and he should be annoyed, having to repeat himself, but he isn’t. +

He’s just as happy and thrilled as the man who loves him.

Atsumu is horny in the morning, it’s true.

Kiyoomi is silly in the morning, it seems.

And it turns out, they're both sappy as hell, 24/7.

They wouldn’t have it any other way.

//fin//

Thanks to @sktsweek for a week of great prompts!