Reader has Insomnia
bf!katsukixfem!reader
@nekonadia Ty for the motivation to revive this one.
cw: smoking weed, smut, smut, smut, public sex?, mdni
synopsis: at first, cuddling with Katsuki had been the closest thing to a sleep aid you'd ever found. Most nights he'd fall asleep within minutes while you stared at the ceiling, listening to the steady rhythm of his breathing and pretending you weren't counting the hours until sunrise.
Eight months into your relationship, he'd gotten used to it. Which was exactly why he noticed the change. A prescription later and suddenly you were sleeping through the night. No more tossing, no more restless sighs and no more finding him awake at three in the morning because you'd accidentally woken him up for the fourth time.
Now, after a few pulls, you practically melted into whatever surface was closest.
Including him.
-11:45 PM
Katsuki's arm tightened around your waist, pulling you flush against his chest. Fresh from the shower, he smelled like clean body wash and warmth. You immediately scooted back closer.
"Tch," he muttered against your hair. "There it is."
"What?"
"That look."
Your brows pinched together.
"The one you get when you're high."
A laugh escaped you, quiet and lazy.
"I have a look?"
"Yeah."
His answer came immediately like he'd been studying it. Your smile widened.
"And what does it look like?"
Katsuki shrugged.
"Dunno."
"You just said I have one."
"You do."
You rolled onto your back with a dramatic sigh, earning an unimpressed look from him.
"Very helpful, Katsuki."
"I'm serious."
His hand found your thigh beneath the blanket, giving it a firm squeeze before settling there.
"Your eyes get all heavy."
You hummed.
"You get quieter."
"Hm."
"You smile at everythin'."
That one made you laugh.
"I do not."
"You absolutely do."
His lips twitched.
"You smiled at a lamp earlier."
"It was a nice lamp."
"It was a lamp."
Your laughter filled the room, softer than usual, and Katsuki found himself staring again. Usually your mind moved a mile a minute. Even when you were relaxed, there was always something happening behind your eyes.
Tonight there wasn't.
You looked comfortable.
Peaceful.
For someone who'd spent months watching you struggle to fall asleep, it was almost unsettling.
"You’re starin' again?"
His gaze snapped back to yours. The grin on your face told him you'd caught him.
"Tch."
"There he is."
"There who is?"
"The guy who's been lookin' at me weird for the last two weeks."
"I'm not lookin' at you weird."
"You are."
You pointed at him.
"Curious?"
His eyes narrowed.
You gasped.
"Oh my god."
"What?"
"You wanna know what it's like."
The accusation landed perfectly. Because you were right. Katsuki groaned as soon as your grin turned mischievous.
"Don't start."
"You do?"
"I'm just asking"
"I'm not curious."
"You are!"
"I'm not."
"Then don't try it."
The challenge left your mouth before you could stop it.
Silence.
His stare immediately flattened.
You smiled.
Slowly.
Dangerously.
"...you did that on purpose."
"Did what?"
His hand pinched your side.
You yelped, laughing as you tried to twist away.
"Okay! Okay!"
"Brat."
"But are you gonna try it?"
Katsuki looked away first then back at you.
Which was answer enough.
A few minutes later, the balcony door slid open behind you, letting warm summer air spill into the apartment. The city stretched endlessly beyond the railing, lights blinking against the dark skyline.
You held up the preroll triumphantly.
His brow lifted.
"That the stuff?"
"Mhm."
You started toward one of the chairs but a hand closed around your wrist. Before you could question it, Katsuki dropped into the patio couch behind you and tugged.
"Katsuki!"
A second later you landed squarely in his lap. His arm immediately settled around your waist.
"Sit."
"I'm literally already sitting."
"Good."
You laughed.
The deep rumble of his chuckle vibrated against your back as he rested his chin on your shoulder.
Comfortable.
Like this was the most natural thing in the world.
Eight months together meant you were long past the stage of pretending not to want each other's attention.
You leaned back into him automatically.
His arms tightened.
Satisfied.
You lit your preroll for him.
"First pull down to your chest, hold it, let it out and repeat two more times. You're gonna cough a lot so just go slow."
His first wasn't too bad.
The second almost killed him.
"What—the fuck—"
A coughing fit cut him off.
You laughed so hard you nearly dropped the lighter.
"I did say you were gonna cough."
Another cough.
You handed him a water bottle -definitely helped. He took his last pull, teary eyed with a hoarse throat as he exhaled.
For several minutes neither of you spoke.
You just sat there watching the city and eventually you felt him shift behind you then go completely still.
A smile threatened the corner of your mouth.
You didn't say anything.
Neither did he.
You could practically hear him hoping you hadn't noticed.
Unfortunately for him you absolutely had.
The silence stretched.
Long enough to become suspicious.
Long enough to become funny.
Long enough that your shoulders began to shake.
Behind you he groaned.
"You noticed?"
You finally laughed. "Maybe."
“S-sorry” he mumbles into your back
“Don’t ever apologize for that” you wiggle until he was pressed flushed between your silk covered booty cheeks.
“being horny a side effect?” he whispered.
“yeah” you smirk softly to yourself.
You slowly roll your hips forward on him. Your silk nightgown making the motion smoother —just the perfect amount of friction that causes him to moan softly. One of his hands waste no time moving up your thigh while the other moves from your side up to your breast.
He breaths into your neck while clenching his teeth.
His fingers curl into the soft skin of breast, squeezing as he tries to bite back an immediate reaction to your moan. His other hand draws random shapes up your thigh and to your pussy.
Your head settles back against his shoulder as you open your legs for him without a word. His eyes drift downward, taking in the slow, gentle rhythm of your hips rocking against him, completely mesmerized by the sight.
His eyes drift shut, his chin resting against your shoulder as he quietly savors your words. The slow grind of your body against him has his breathing growing heavier, each small movement pulling him further under.
"Mmm..."
He gives your hip a gentle tap.
You shift forward just enough for him to tug his shorts and boxers down. Once they're out of the way, you settle back onto his lap, straddling him with your back still pressed to his chest, your legs draped over his.
His hands find the silky fabric of your nightgown, fingers curling into the material before slowly gathering it in his fists. As the hem slips higher, his gaze follows.
Then he stills.
His eyes linger, drinking in the sight before him.
A slow, disbelieving smile tugs at the corner of his mouth as he exhales through his nose, completely captivated.
You're not wearing any panties. Your intention was going to sleep remember?
"God..."
The word leaves him in little more than a whisper, equal parts awe and admiration, as though he isn't entirely sure what he did to deserve the view in front of him.
His chest rises and falls in uneven breaths, each one matching the slow rhythm of your hand palming his cock. He presses a lingering kiss to the back of your shoulder, his lips barely leaving your skin before finding another spot to linger on.
"Fuck, baby... m'so horny," he rasps. His voice is rough, strained.
He slides his hands beneath your thighs and lifts you with effortless ease. You know exactly what he wants before he says another word, instinctively moving with him.
The moment he begins guiding you down on his cock, your breath hitches at how much its stretching your eager little cunt. His forehead drops against your shoulder, eyes squeezing shut as he tries to steady himself.
He buries another kiss against your neck, lingering there as if the warmth of your skin might distract him from way your pussy grips him and everything else he's feeling.
It doesn't.
A shaky breath leaves him instead.
His arms instinctively tighten around you, holding you close, keeping you tucked securely against his chest. For a long moment, neither of you says anything. You're both too consumed by the overwhelming closeness, discovering together how every sensation seems heightened.
Neither of you had expected it.
The high made everything feel slower.
Warmer.
More intense.
Every sound you made reached him before it had the chance to disappear into the night.
Each shaky breath.
Every quiet gasp.
Every little moan that slipped past your lips seemed to vibrate straight through his chest with how closely he held you.
You should've felt exposed.
Embarrassed, even.
Instead, you found yourself melting further into him, completely undone by the way he watched you.
As wrecked as you looked...
...he looked no better.
His lips stayed slightly parted, each breath leaving him in quiet pants against your neck. His eyes wandered endlessly over your face, never settling in one place for long.
Your eyes.
Your lips.
The way you kept catching your bottom lip between your teeth. The way your expression unraveled every time another wave washed over you.
He watched it all with quiet disbelief, like he couldn't decide whether to memorize you or lose himself in the moment.
The instant another breathless moan escaped your mouth, he couldn't take it anymore. He captured your lips again.
The kiss was clumsy.
Desperate.
Slow in all the right ways.
The sudden warmth of his mouth against yours pulled an even louder sound from your throat.
Your body answered before your mind could.
You tightened around him.
A sharp hiss escaped between his teeth as his forehead bumped lightly against yours, his eyes squeezing shut for a heartbeat before opening to find yours again.
One of his hands leaves your hip to cradle your face. His fingers gently squeeze your cheeks, coaxing you to look back at him over your shoulder.
The sight nearly undoes him.
His eyes are heavy beneath half-lowered lids, his bottom lip caught between his teeth as he watches every expression that flickers across your face. Every little reaction. Every shaky breath. Completely mesmerized by the way you're melting in his arms.
"Fuck, baby, I— god damn this pussy's s'good."
The words fall from him in a breathless rush before he crashes his lips into yours. The kiss is messy, desperate, all tongues and broken moans, like he can't get close enough no matter how tightly he's holding you.
Neither of you had expected it to feel like this.
Everything is amplified.
Every touch lingers.
Every movement seems to echo through both of you, slow enough to savor yet somehow overwhelming all at once.
You gasp into the kiss, your fingers searching for something to hold onto before reaching back and tangling in his hair.
"Ahh— Sukiii..."
Your tug earns a deep grunt against your lips, his forehead dropping briefly against the side of your head as he exhales through clenched teeth.
"BABY... this cock, oh my God!"
A crooked smile flashes across his face despite the strain written all over it.
"Yeah? What about it, princess?" his voice is rough, teasing despite how wrecked he sounds, his hands steady on your hips as he keeps you tucked securely against him.
"so big... s'good."
Your words dissolve into another breathless sound as your head tips back against his shoulder.
"That's it," he grunts, unable to hide the grin creeping into his voice. "You love it."
"Fuck! I love it!"
Your slick coats him completely, gathering at the base before slipping between his thighs. His hand drifts lower, his fingertips finding your clit. The first touch steals the breath from your lungs, your body tightening around him on instinct. Every slow circle draws another involuntary clench, your thighs trembling as you melt further into his embrace.
"Oh, fuck… you're like a vice."
The sound of your breathing fills the quiet night, broken only by his strained groans against your ear. Every motion seems to pull another reaction from you, your body answering his without thought.
You come apart in his arms with a broken cry, clenching around him so tightly it tears a deep groan from his chest. His hand instinctively cradles your neck while the other never leaves you, determined to carry you through every wave. He buries his face against your shoulder as he follows moments later.
"fuck... Fuck... FUCK!"
The words leave him in ragged gasps, each one more breath than voice. His chest rises sharply against your back as he clings to you, arms wrapped tightly around your waist as though letting go isn't even an option yet.
For several long seconds, neither of you moves.
You're both too busy catching your breath, hearts pounding in perfect sync beneath the glow of the city skyline.
Only when his breathing finally begins to steady does he press one last kiss against your shoulder.
"Stand —up," he pants.
You glance back at him.
His eyes meet yours, still dazed, a crooked smile tugging at the corner of his mouth.
"Hands on the railing."
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