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toru-oikawas-milkbread · 2 years

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Sleepless Nights

Pairing: Atsumu Miya x f!reader x Kiyoomi Sakusa

Prompt/summary: When both of the men can’t sleep but you’re peacefully knocked out between them, one might think they might be talking, but that simply wasn’t the case. It had been dead silent between the two men the whole night, only the sounds of your soft mumblings in your sleep as Atsumu tried hiding his face from the moonlight in your back, only to end up hard when you wiggled back against him. Disgusted, Kiyoomi was going to scold the man before you moaned his name in your sleep. Atsumu hadn’t expected innocently grinding himself against you just a little bit leading up to a whole night spent awake, but he couldn’t complain a single bit

Word count: 3.2K

Warnings/contents: Smut: consensual somno, teasing, pussy penetration, mentions of past sex, light squirting. Strong language, fluff, 18+

Notes: Finally, it is time for SakuAtsu’s poly smut! It’s only 10:30AM for me, but it’s never too early for smut, right? Again, this smut isn’t really all that kinky. Since it’s written to be in the middle of the night, the sex isn’t too quick paced and instead I tried to keep it sort of slow while also keeping it interesting, if that makes sense? Regardless, I hope you all enjoy this chapter!

Since Atsumu and Omi aren’t in a frame together except from photos from the manga, I just decided to add their GIF’s separately to include both of them because look at them

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The room was dark, and yet neither Atsumu nor Kiyoomi were able to sleep. You laid between them, your face buried against Kiyoomi’s warm chest while Atsumu was snuggled up behind you with a hand beneath your shirt. Kiyoomi had an arm around you, his fingers gently rubbing your shoulder as he struggled to sleep despite it being almost dead silent in the room.

Atsumu yawned, moving to press a kiss to your neck when you gave a soft sound in your sleep against Kiyoomi’s chest.

“Still can’t sleep?” Kiyoomi asked the other man who gave a soft hum in response as he laid back down on the bed comfortably.

“Nope.” Atsumu sighed, pulling you closer by the hips against his body and giving a soft hum as his erection pushed against your ass. It had happened a few minutes ago when you gave a sleepy sound and wiggled your ass back against his crotch. He hadn’t been able to help himself, even if it hadn’t been a completely sexual thing on your end. “Mmm, come ‘ere,” he whispered to you as you slept, leaning down to press another soft kiss to your neck while he gently grinded himself against your ass, something that didn’t go unnoticed by Kiyoomi.

“Are you seriously grinding yourself against her right now?”

“Yeah.” Atsumu said shamelessly. It was too dark in the room to see the look on his boyfriend’s face as his lips curled up into a soft, disgusted sort of look, but bright enough to see the perfect outline of the mans pretty side profile.

“You’re disgusting.” Kiyoomi grumbled, but as Atsumu rubbed himself against you and tried to come up with a snappy comeback to the otherwise much more insulting man in his tired state, you gave a soft moan and snuggled closer to the man beside you as your ass wiggled back against Atsumu in your sleep. Both of the men were quick to look at you, Atsumu chuckling while Kiyoomi’s eyebrows raised in shock.

“Looks like (y/n) doesn’t think it’s so disgustin’.” Atsumu boasted softly, earning an eye roll from Kiyoomi that he didn’t see.

“Oh, shut up.” The man said, but before Atsumu could boast some more, you said something in your sleep that shocked both of the men.

“Mmm… Omi…” You softly moaned, making Atsumu quietly gasp as a small smile curled onto Kiyoomi’s face.

“No— (y/n), it’s me.” Atsumu whispered, leaning down to press a kiss to your neck before speaking again. “It’s ‘Tsumu, not Omi.” Though as you gave another little moan in your sleep, Kiyoomi’s name tiredly passed by your lips again. “Ugh, this is such bullshit.” Atsumu complained, however he didn’t stop grinding himself against your ass. Even if you were dreaming about Kiyoomi, he couldn’t help the urge to grind himself against you while you made those soft, sleepy whimpers.

“You should leave her alone while she’s sleeping.” Kiyoomi said softly, gently brushing your hair away from your face and leaning in to press a soft kiss to your forehead.

“She’s moanin’ yer name, but ya don’t wanna feel her?” Atsumu asked, clicking his tongue right afterwards. “There’s somethin’ wrong with ya, Omi.”

“Is it called being decent?”

“No, it’s called bein’ a prude.” Kiyoomi rolled his eyes yet again, resting his head back comfortably on the pillows and eyeing the dimly lit ceiling while you nuzzled closer to the man in your sleep.

“I’m not a prude. I thought that you of all people might know that.” He said, making Atsumu’s cheeks flush, something the man ignored stubbornly as he leaned down to press a kiss to your shoulder. With a sigh as he grinded himself against you, Atsumu tried to think of what to do now; grinding himself against your ass wasn’t bringing him as much pleasure as he was aching for.

“Okay,” Atsumu started mumbling to himself, catching Kiyoomi’s attention. Despite trying to seem like he could care less, Kiyoomi was a nosy man. He slightly peeked over at the two of you as Atsumu reached around you and pressed his fingers to your clit beneath the panties that you wore. In your sleep, you rolled your hips against his fingers and mumbled something incoherent beneath your breath. Atsumu snickered, feeling how wet you were against his fingers before an idea came to mind. “I wonder…” He slid his fingers down between your folds, easily pushing two of his fingers inside of you. His cock twitched in his boxers as he felt you and gave a hum. Atsumu brought his fingers out of your underwear and to his mouth, licking them off quickly before shifting against you.

“What are you doing?” Kiyoomi finally spoke, giving into the curiosity and looking straight at Atsumu through the dim lighting as he carefully lifted one of your legs and slid your thong to the side.

“I’m gonna fuck her.” He said as if it was the most obvious thing in the world, nearly baffling Kiyoomi into silence with a soft scoff.

“Atsumu, she is sleeping.” He scolded, but it hadn’t stopped the man from gently kissing your neck and starting to slide himself free of the short boxers he wore.

“And she’s told me I could do it if I wanted to.” Atsumu stuck his tongue out at the man who just barely saw it through the light in the room that was only illuminated with the moonlight. “So shut yer trap, Omi.” The man on the other side of you clenched his jaw in annoyance as Atsumu gently grinded the tip of his cock against your wet entrance and gave a soft exhale. A shaky moan left Atsumu as he just barely pushed himself inside of you, trying to go slow as to not wake you up. A soft sound came from you, but even as your eyebrows screwed inwards and you leaned into Kiyoomi more, you stayed asleep.

Atsumu gently rocked himself inside of you at a slow pace, not wanting you to wake up quite yet and restrict your sweet moans that fell easily from your mouth as you slept. He swallowed hard when you gave a sleepy whine, your fingers balling up Kiyoomi’s shirt between them.

“Mmmng… O… mi…” You mumbled, making the man behind you frown softly.

“It’s not Omi,” he whispered, pressing a kiss to your jaw. “It’s ‘Tsumu, baby.” But that didn’t stop another sleepy moan of Kiyoomi’s name from passing your lips as he stretched you out. “This is pure favoritism.” Atsumu grumbled, earning a soft laugh that nearly sounded like a scoff from Kiyoomi on the other side of you as he gently rested his hand over your own that was on his chest.

“Maybe that’s because I don’t disturb her when she’s sleeping purely because I’m horny.”

“What, do ya get horny twice a year?” Atsumu mumbled sarcastically.

“You act as if I’ve never fucked you, Atsumu.” Kiyoomi said, something that made Atsumu’s cheeks warm as he mumbled something beneath his breath in return. You gave another sleepy moan as Atsumu gently rocked his hips against you. The bed creaked softly as he slowly moved inside of you, giving a small moan every time that your pussy clenched around him. You were damn near dripping, giving soft moans and clinging onto Kiyoomi in your sleep.

Atsumu gave your thigh a light squeeze, kissing your neck and throbbing inside of you with every soft moan that left your mouth. He had been thinking previously of eating you out, though with Kiyoomi awake, Atsumu had been strangely embarrassed to move between your legs— maybe because one had even been over Kiyoomi’s thigh at one point. So now he merely opted for putting himself inside of you. He had almost bothered Kiyoomi since the man was awake, but after you gave a soft moan in your sleep, he couldn’t help but giving in to what you’d long ago consented to and make you moan— ideally his name, yet instead you moaned Kiyoomi’s.

A soft moan left your boyfriend as he resisted the urge to pound inside of you in this new angle, though he couldn’t help the sound that left him when you finally moaned his name for the first time tonight.

“Aha!” He said loudly, though quickly covering his mouth as Kiyoomi quickly looked over at the man in shock as he jolted you awake. “Oops…”

“Now you’ve gone and done it.” Kiyoomi glared at the man behind you who had come to a stop, though still throbbing inside of you and aching for more.

“Why are you yelling?” You asked sleepily, laying your head back on Kiyoomi’s chest before you realized that Atsumu was inside of you. “Mmm, keep going.” You mumbled, making both of the men flush a bit, though before Kiyoomi could protest and tell Atsumu you needed to sleep, the other man did as you asked and started to move inside of you again. You gave a soft moan, holding tight onto Kiyoomi’s shirt still. “Mmm, faster, ‘Tsumu,” you quietly begged. Despite wanting to tease you on a regular basis, Atsumu couldn’t help but give you what you asked for tonight— because it was what he was aching for as well.

“It is the middle of the night,” Kiyoomi grumbled, knowing that he wasn’t going to get a wink of sleep with the way that Atsumu was making the bed creak and move now, but neither of you seemed to care about his complaints as Atsumu laid your thigh on the bed right by Kiyoomi, moving to hit inside of you deeper and in a different position. You gave a whiny moan, nuzzling your head against Kiyoomi’s muscular arm.

“Ah, ‘Tsumu!” You moaned, toes curling as he steadily rocked his hips against your ass, leaving you a tired, moaning mess against Kiyoomi’s side. The man was merely watching, his cock throbbing in his pants as both you and Atsumu moaned beside him despite wanting to sleep. He thought of touching himself, nearly twitching at the thought, though he really wanted you to touch him instead.

But he wouldn’t ask for that.

“Oh, fuck,” Atsumu moaned softly, his lips pressing to your shoulder as he pressed deep inside of you. Kiyoomi couldn’t help himself as he almost hesitantly brought his fingers down when Atsumu moved you against you be more on your side with him, holding your leg up while he thrusted inside of you and giving a shaky moan. Kiyoomi swallowed hard, curling his fingers around your underwear and pressing them to your clit, starting to softly rub against you as you already struggled to keep your hips still for the man behind you.

As he felt you, you were soaked, though he wasn’t sure if it was because you’d been this way since you had some sort of sexual dream or if it was because Atsumu had made you so wet as he pushed himself inside of you,

“Ah, fuck!” Atsumu moaned again, burying his nose against your shoulder as you squeezed around him from the added stimulation.

“Oh, Omi,” you moaned, your forehead pressing to his bicep as he rubbed at your clit. The man licked his lips, biting down on his bottom lip as you moaned and leaned heavily into him. “Fuck, it feels so good Atsumu!” You said, reaching over and clasping your hand down onto Kiyoomi’s thigh. The mans cock twitched in his pajama pants as the soft sound of Atsumu’s skin hitting your own became more predominant as he moved quickly against you. “Ah, I’m gonna cum!” You moaned almost desperately, losing the warmth in your toes as your leg was held up, though not caring as Atsumu brought you closer to your orgasm.

“Wanna join us, Omi?” Atsumu asked, peeking around you and looking at your shared boyfriend. “Do a little more than touch her pussy?” He almost teased, though a moan left him and cut his cocky tone off. “Do ya want to get touched, too?” He asked, though before the man could answer, you reached up and gently cupped your hand around his erection.

“You’re hard, Omi-kun,” you teased, though moaning quickly after. “Do you want me to touch you?” Kiyoomi seemed to think for a moment before he gave a soft nod in the darkness.

“Okay.” Kiyoomi spoke softly as he moved with you, sliding his pants and boxers down to his knees and finishing kicking them off his legs while you reached up and grasped onto his shaft. He gave a shaky sound as you started to stroke him. Despite being rather tired even still, you worked fast on his shaft and made the man give a shaky moan beneath his breath. Atsumu pressed his forehead to your shoulder while Kiyoomi tried to keep his fingers working on your clit.

“Mmm, Omi!” You moaned softly. “Feels so good,” you panted, much closer to reaching your orgasm around Atsumu’s cock, and he knew it. He could tell it was coming soon before you even spoke. “You’re gonna make me cum, ’Tsumu,” you moaned desperately, your hand almost lagging and squeezing tightly on Kiyoomi’s shaft as your orgasm neared. “Gonna cum!” You barely had time to moan out again as you reached a quick orgasm around Atsumu’s cock, though squirting out around him more than you bargained for as he continued to thrust inside of you until he stopped with an orgasm of his own.

Things almost went silent aside from your shared panting with Atsumu as you pressed your head to Kiyoomi’s chest. He was certain by now he was too late to agree to you touching him— that this was it for the night and you were going to be too tired to do anymore. God forbid he ask Atsumu for any help, he wouldn’t hear the end of it for weeks, though you surprised the man as Atsumu pulled out of you and laid back on the bed by sitting up.

You took your hand away from Kiyoomi’s shaft, rubbing the tear away from your eye that you’d squeezed shut too tight as you orgasmed and looked at Kiyoomi.

“Omi?” The man gave a soft hum as he looked at you. “Can I ride you?” He was glad that the lights were off so that you couldn’t see the way that his cheeks flushed, though he almost regretfully spoke and instead wished you had seen his nod.

“Alright.” You waited until he was more comfortably leaned against the pillows rather than completely laying down before swinging one of your legs over him. Kiyoomi grasped onto his shaft, holding it for you while you started to take him inside of you. Your fingers grasped onto his shirt, head leaning back with a soft moan as you almost easily took his shaft inside of you. A soft moan came from you as you started to move against the man.

Atsumu hummed, moving on the bed to lay a little bit closer to the two of you. He licked his fingers, bringing them over and rubbing them against your clit while Kiyoomi held onto your hips, making you give another moan as you started to move a little bit faster against the man. You stripped your shirt off and groped at your chest while you bit your lip and looked down at Kiyoomi. You could see him, though not as well as you wished, through the dim lighting, meeting his eyes and looking into them while he eyed you back as you moved on his cock. The man moved a hand off of your hip, groping at your other breast and gently rolling your sensitive nipple between his fingers, earning a breathy moan from you that made him twitch inside of you.

While the two of you had a moment, Atsumu reached down and grasped at his aching shaft. He had cum inside of you, though almost immediately gotten hard again before you even asked to ride Kiyoomi. You hummed, leaning down against Kiyoomi and making the man wish he wasn’t wearing a shirt as your hard nipples pressed to his chest, though he wasn’t left thinking for long before you kissed him as Atsumu slid his hand away from you and instead rested it behind his head for support as he watched the two of you. Kiyoomi’s hands slid along your back, groping at your ass and making you give a soft moan against his lips.

A quiet moan left Kiyoomi into your mouth as you rocked your hips against him, tiredly riding his cock while you sleepily kissed the man. The kiss was occasionally broke by a moan from both of you, though you would only push your lips right back to his afterwards. He didn’t mind just how sloppy the kiss was as his large hands rested on your hips, keeping you close while you tried to move a bit faster on him.

Atsumu moaned, moving his hand fast along his shaft while you rode your other boyfriend, watching you and being glad that the light coming in through the thin shades was lighting the two of you up enough in the dim room for him to be able to watch your every movement. When he had originally started to grind against you, he hadn’t thought things would get this far. In fact, he had sort of agreed with Kiyoomi at first— he felt bad for touching you while you were so peacefully sleeping just because he couldn’t.

Though, with how well things had gone by now, he couldn’t help but be glad he’d started to touch you despite Kiyoomi’s tired shaming. Your soft moans mixing with Kiyoomi’s made the man twitch in his hand as he laid his head back and closed his eyes with a shaky exhale.

He wanted to touch you, he wanted to fuck you, he wanted to make you scream his name, but he couldn’t help but touch himself instead of you while you rode Kiyoomi. Atsumu had never been too fond of sharing, though he had found it hard to resist watching Kiyoomi fuck you sometimes while he only touched himself, or even while he only sat there quietly. He thought it was almost funny how different the two of them were and yet you always seemed to love them both equally, enjoying letting Kiyoomi do to you as he pleased as much as you enjoyed rolling around on the bed and playfully fighting for dominance you knew you wouldn’t win with Atsumu.

Kiyoomi’s fingers slid along your back over your ribs, digging his fingers slightly into your skin and making you moan as he gently started to thrust up inside of you as you slowed down. You broke the passionate kiss with a moan as the man thrusted suddenly up into you, holding his shirt so tightly that your fingers went numb. Atsumu gave a soft chuckle as he looked over at the sudden and new movements from Kiyoomi as he fucked you in your sleepy state.

“Remember when I was the indecent one buggin’ her when she was sleepin’?” Atsumu teased, watching as Kiyoomi held your hips tight and watched as he moved inside of you.

“Shut up, Atsumu.”

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