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A very unfortunate shared wall, paper thin and sandwiched in between two beds– with thin walls comes the distinct pleasure of knowing your neighbors most intimate habits.
It starts out innocently enough, as most things like this do.
A freshly baked plate of cookies pressed against your hip, ready to meet your new neighbor. You knock lightly, seeing a flash of muscles and blonde hair only a few minutes prior opening and slamming the door. Bouncing on your heels, you knock again, a little louder this time. Maybe he hadn’t noticed over the blaring music currently shaking the door on its hinges in front of you.
You hear the music cut followed by a heavy pair of feet, the door swings open abruptly enough for your hair to pick up slightly from the gust of air. The first thing you meet is a broad chest, the black tank top he wears sticks with sweat to his skin, he must have already taken a trip or two up and down the stairs. Large expanses of skin swirl with ink, most notably two large grenades on either prominent, muscled arm. Eyes trail upwards, your neck craning to meet the tall man’s glare. It’s red hot.
“Oi, what do you want?” The voice attached is every bit as harsh as the physique. You stare up at him dumbly, a series of strangled coughs erupt from your chest.
“I’m sorry, I uh- I live next door, I brought you some cookies.” Your chest puffs out slightly, an attempt to regain composure. The blonde leans against the jam, arm hanging over your head, each ring on his pretty fingers shine against the fluorescent lighting. The plastic plate in your hand is brought in front of your two bodies. Your housewarming present feels more like an offering.
“I’m allergic, no thanks.” His comment deflates in the stale air between you, the smile on your face melts at the edges. Your new neighbor moves to shut the door, punctuated with a cool eye-roll, but your foot kicks out to stop it. You chalk it up as a moment of boldness rather than a desire to stare at him for even a second longer.
“Wait, I–” your eyes flick back and forth between each of his red ones. His rudeness makes you combative, with a collective sigh you jutt your chin out, “I was just trying to be nice, you could at least tell me your name.”
If you knew any better, you swear the makings of a smile creep onto the right side of his mouth, it’s quickly replaced with another scowl.
“Katsuki Bakugou.” The blond in front of you stares for a moment at how pleased you look with yourself.
“It’s nice to meet you, my name is-” when you look up again, the wooden door almost kisses the tip of your nose.
* * * * *
The rhythmic thrumming of your bed against the barrier of two separate apartments winds a chord so tightly it could slice through the plaster and insulation cleanly. Katsuki can’t stand listening to the crashing waves of your bed against the wall right next to his ear. The pounding of his fist against the plaster only ever seems to embolden you, punctuated with your whispered, “Don’t worry, hnnng, it’s just my shitty neighbor.”
The only thing worse than your date nights is when you’re alone. He lies in bed and hears the low residual buzz of a toy and the breathy, whiny way you moan. It’s obnoxious in a way Katsuki isn’t used to.
“Please, oh god, please. Please just fuck me, I can’t stand it anymore.”
It’s your moans that grate directly on his temples, completely pornagraphic. The way you squeal and squirm and beg for something you’re obviously not getting from Tinder hookups.
A large, tattooed hand always comes down to stroke his hard-on, frustration on multiple levels works him over. Katsuki can’t help but imagine the picture on the other side of a thin wall. Are you pressing your tits together, rolling a nipple in your fingers for extra stimulation? How do your fingers feel dipping into the sweet cunt he only sees in his imagination?
How would you look, face screwed up in pleasure as he pressed into you, stretching your lips around–
A loud slamming of his fist against that treacherous wall marks another night “alone.” You feel the room around you shake in finality, cumming against your toy thinking about a certain blonde undercut between your legs instead of a piece of pink plastic.
Weeks turn into months to the drum of mutual annoyance. You wake up to the crashing cymbal and pounding bass almost every morning– who in their right mind bangs on a drum at eight in the morning? Every interaction is, at best, angry and warring.
If asked, you wouldn’t say you hate Katsuki.
“Oi, princess. If I see your stupid little car in my spot one more time I’ll–” His voice rings behind you, only a few feet away as you fumble with your mail key. The nickname makes your eye roll.
“You’ll what? Are you going to push it out of the way? Your stupid bike dosen’t need that much room anyway.” You watch his fingers curl into his fist tightly, the vein on his neck sharp enough to slice his pale skin, you see a trail of stars tattooed and bobbing with every clench of his jaw.
“Such a little fucking brat. Someone needs to put you in your place before I have to.” Katsuki’s red eyes dance with mirth. Your flushed cheeks and slack jaw make him snicker. Only a handful of words thrown at your face like cold water, and you’re stunned silent.
Hate doesn’t seem like a strong enough word.
* * * *
A chaste peck on the lips and promise to call you hangs in the air as your date stumbles down the hallway. You watch as he walks into the stairwell, rolling your shoulders and cracking your neck. You lean against your front door. Another mediocre night spent laughing at jokes that weren’t funny and an oscar-worthy round of moans. You had shuffled your date away before 9pm, now the only thing you want is to run a bath and do in 3 minutes what he couldn’t in 30.
“Do you think that poor fuck even realized that your were faking it, princess?” Katsuki’s voice grates against your temples, his presence is even more annoying considering the circumstances. His comment is infuriating but here you are, squeezing your thighs together at the sound of his gravelly voice. Great.
“Fuck. Off. You have no idea what you’re talking about.” Your voice sounds anything but confident when it hits your ears. Katsuki’s eyes burn holes into either hip bone, a baggy t-shirt hangs off of one shoulder, the fabric riding over the thin cotton of your panties. He could leave you in his biting comment, but tonight feels like his last straw. Something needs to give, especially with so much of your skin exposed to a greedy man.
“We share a fucking wall, I hear everything. Every hookup you have comes back to fuck you right next to my ear.” You’re crowded by his form, spine pressing against the door jam as he leans over you.
“I know exactly what you sound like when you cum. I almost feel bad for your little date, the poor bastard has no idea.” His voice drips down your shoulders, his soft lips now dangerously close to the sweet spot on your neck. He inhales sharply, the smell of your perfume lingering against your skin. Katsuki remembers seeing you leaving earlier in the night, a tight black dress wasted on some random extra. The pathetic way you led him on with lukewarm groans. Seeing you now has the tattered ends of his rusty resolve snapping.
Where others make you groan, Katsuki is going to make you scream.
“You have two options,” the first thing you feel is teeth grazing your ear, nipping against the shell, “Tell me to piss off, and I’ll go back to listening to you fake orgasms and ride your vibrator. Or let me show you how you should be getting fucked.”
You feel his tongue next, licking a wet stripe from your collarbone to your earlobe. Your knees buckle slightly. One hand snakes around your neck, you feel calloused fingertips squeezing lightly.
“I-is that a threat or a promise?” Your voice shakes under his grip. The chuckle that leaves his lips sets your blood on fire. No one has ever talked to you like this, and every word shoots right to the wet patch in your panties.
The first union of your mouths feels distinctly like a long time coming. His lips are so soft, you could get lost in the tracing of his tongue and teeth against your own. The kiss is hard, Katsuki’s hands hold onto your hips, long fingers digging into your skin to leave ovaled bruises.
“I would fuck you right aganst this door, princess, but I don’t want to pick a fight with the rest of our neighbors.” You hear the sarcasm trickling from each syllable but are given no chance at a comeback.
Your body is thrown over Katsuki’s strong shoulder, you hear the resounding slam of your front door behind you. He carries you to bed, throwing you against the mattress. You want to complain, but any protesting dies in your mouth at the sight from above you.
Katsuki pulls off his tank top, his broad chest is covered in hard, stiff muscles and the winding vines of black ink. He’s so beautiful it’s unfair. You trail down, taking in every dip of skin as each plane melts into the next. The deep V at the bottom of his abdomen meets the top of his grey sweatpants. Your eyes meet the prominent outline the cotton is hiding. You almost want to scoff.
So unfair.
You feel him crawl onto the bed, digging into the mattress on his journey towards you. His hands come up to rub over the soft skin of your legs, fingers trailing lightly from ankle to knee. He pushes on each so your legs fall open, you look up to watch Katsuki’s face ascend to meet the wet patch of your panties, his nose brushes against the fabric.
“Already so wet, and just for me. I knew you would be like this.” You inhale sharply as he rips the underwear from your cunt. Strings of slick collect and break off, you’re drooling for him.
His tongue darts out at the side of his mouth, flicking against his lips. Katsuki groans at the wet-hot succubus sitting in front of him. You shift under his stare.
“Look at that, you’re so flustered for me, princess. Don’t get shy now.” His mouth feels dry, aching for a taste. The culmination of being an unintentional vouyer for the past three months ends now.
Every nerve ending in your body turns into live wires, sparking against each other in tandem as you feel the fat swipe of Katsuki’s tongue against you. His chest rattles with a growl at the first taste, his hands find a home at your inner thighs, squeezing the skin to ground himself.
Katsuki’s sharp tongue is good for more than just pissing you off, you find out it’s functionality with every deft swipe. His pace is set, working long lashes against your pussy, digging the slick muscle in to revel at how you clench around him. If your little cunt is this tight against his tongue, he’ll surely tear you apart on his cock.
Good.
Katsuki is messy and urgent against you, drinking in everything you have to offer. Every stripe of spit and teeth against your hole is punctuated with a flick to your clit. You’re hanging over the edge of bliss, he pushes you closer to orgasm than any of your random hookups could have ever hoped to in no time.
Two fingers waste no time, pushing inside and finding the spongy anterior of your pussy quick enough to cause whiplash. You dig your feet into the bed, every muscle in your body tries to lift up at the new sensation but Katsuki’s other hand holds you down with little effort.
“Katsuki I- please. I’m gonna cum- ‘m gonna make a mess.” You feel the chord in your stomach tightening, but it’s his stupidly handsome smile, his smart mouth, that makes you snap.
“Tch, you’ve already made a mess. And I’m going to clean up every drop.” You can hear the squelching, slurping chorus dripping from his chin. Your fingers find his hair to pull tightly, every ounce of frustration in your body surfaces and melts away. Your orgasm crashes against every muscle in your body, leaving you dissolving into the blankets.
You try to push Katsuki’s head away weakly, but he doubles down with the whipping of his devilish tongue against your puffy, overly sensitive lips. He grabs your hands, threading his fingers with yours to keep them at your sides.
“No way, brat, we’re just getting started.”
* * * *
A strong pair of arms pulls you to sit up, swimming in that sweet post-bliss– your head now back above water. Orgasm after orgasm pulled from your body renders your own two feet unreliable. You can feel the stretch, the burn of his heavy cock, the tracks of tears now dried against the apples of your cheeks. You’ve never been fucked like this, your legs will be sore for days.
Katskui throws his shirt over your head and pulls his sweats back up. Bringing your shaky legs to circle his waist, he carries you to the kitchen. The cold counter meets your ass cheeks and you grimace at the contact. Your small wine makes him chuckle, marveling at the puddle you’ve become because of him.
“Here,” a glass of water is pressed into your hands, “drink up, princess.” The way that stupid nickname rolls from his mouth feels different with his finger brushing away stray strands of hair from where it frames your face. The touch of a lover instead of a warring neighbor. You’ve never seen such a soft side to Katsuki, it’s something you could get used to.
You smile up at him, reveling at the toothy grin he gives you in response. Katsuki reaches around you, swiping a cookie from a plate next to the oven. Your eyes narrow as he chews, but you can’t help the small giggle bubbling from your chest.
“I thought you said you were allergic, asshole.”