Work Text:
Katsuki dropped his keys on the counter and looked across the open concept of their apartment, wondering where Izuku was. His car was in the parking garage, his coat was on the hook by the door, bulky red sneakers in their cubby.
The TV was off, the kitchen void of any smoking pans or burnt meals. Scratching at the back of his head, Katsuki wandered further into their home, peeking first in Izuku’s game-room, then the guest bath, though his boyfriend was in neither. Katsuki could call out to him, but where was the fun in that? The best part of his day was getting to come home and surprise Izuku with his presence. When Izuku didn’t know just what time to expect him and Katsuki appeared, the smile that graced Izuku’s pretty round face was the stuff of dreams and fantasies, strong enough to make Katsuki melt.
And he needed that, today—to lose himself in Izuku. Work was hell, a thousand bad guys and just about a million procedurals to work through. Bending over his desk to figure out the god awful paperwork had put a kink in his neck, a strain in the taut muscles of his back. He’d been quiet so long—so focused on never-ending work—that even his chest had felt tight, lungs begging to release a DynaMight trademarked scream.
He needed Izuku.
Katsuki made it to the bedroom door, noting the glow of a warm, dim light from the crack at the base. He wrapped his hand tightly around the knob, twisting his wrist when he heard the faintest moan from the other side of the heavy wood. Furrowing his brows, Katsuki pressed his ear to the door and listened for more such sounds.
It did not take long to hear the whimper, a breathy, desperate plea of, ‘Kacchan’ and the subsequent rustle of their sheets. Katsuki swallowed, dick swelling just at the thought of what his lover might be doing behind closed doors. He twisted the doorknob quickly, a snap! echoing from the metal fixtures.
Pushing the door open, he went rigid at the sight of Izuku, lying on the bed with his legs sprawled in a butterfly stretch, toes curled in desperate search of stability as Izuku’s fingers rubbed against the tight nub of his clitoris. He was in one of Katsuki’s shirts, ratty old thing that it was. It hung off his shoulder, revealing prominent hickey-bruised collar bones. Katsuki’s lips parted at the thought of having his mouth on those bruises, sucking the mark deeper into soft skin. His body was flushed, thick pussy lips and thicker thighs, his shoulders, neck, and cheeks—pink, soft, and begging for strong fingers to squeeze and not let go.
Katsuki’s erection only grew harder, more uncomfortable as it pressed against the seam of his blue jeans. He watched as Izuku, eyes squeezed shut and unaware his lover lingered at the door, lifted his hand from his cunt and flattened his palm before driving it back down against the soft, sensitive flesh.
A breathy gasp left Izuku’s lips as the resounding slap echoed through the room. His back arched, shirt shifting so that Katsuki could see one pert nipple appear above the seam of the collar. He whistled low and unhurried, bidding his time until Izuku realized the sound came from him, that he was not alone.
Which did not take long, the first note barely leaving Katsuki’s lips before his lover stiffened, fingers leaving his pussy. His eyes snapped open; he sat up straight on the bed. “K-Kacchan…” he muttered through wet, swollen lips.
He was so cute, like that—cheeks red, eyes wide, stuttering because despite the years together, he’d never gotten quite used to how provocative Katsuki found him. And Katsuki kept that on the down-low to keep Izuku from freaking out.
But even Katsuki had limits.
He stepped out of the threshold, into the room, and butted the door closed with his foot. “Having fun?”
“Um- uh-” Izuku pushed his knees together, hiding that pretty cunt from view. “I was just-”
“Masturbating?” Katsuki stepped forward, one foot after another, savoring the way Izuku’s eyes slowly lifted to keep eye contact. At the edge of their mattress, Izuku directly below him with his pitiful expression and wet lips, all Katsuki could think of was how fucking amazing a blowjob would be right now, doe-eyes staring up at him as he came on the bed of a hot, pink tongue.
But that could wait.
Izuku stuttered out an answer that sounded closer to gibberish, and Katsuki responded by reaching for Izuku’s knobby knees, forcing them apart to give a clear view of his wet cunt, the soft folds and pretty clit, thick and throbbing.
Katsuki bit his lip, thinking while Izuku stuttered out his explanation. Something like “I- I didn’t know when you’d be home! And I was just so horny—and I know you like when we get each other off once you’re done at work, but I just couldn’t wait , and-”
Katsuki pressed his hand down on Izuku’s mouth, silencing him instantaneously. With a moment’s respite, Katsuki kneeled down on their dark carpet, hooked an arm under Izuku’s legs and swung them off the side of the bed, one over each of his shoulders. He slid his hand off Izuku’s lips, then slipped two fingers into his mouth. “Suck.”
And Izuku did.
Katsuki lingered on the feeling for a second, eyes raking over the swollen, overstimulated condition of his lover’s pussy, before realizing he didn’t fucking care how stimulated his partner was. He’d had a rough day, an exhausting one. And Izuku’s pretty thighs clamping around his neck as he mouthed desperately against a soaking cunt sounded like the perfect therapy.
Without warning, he bent down into the wet heat of Izuku’s cunt, nose tickling curly green pubic hairs. He felt a shiver run through Izuku’s body, ignoring it in favor of pressing the flat of his tongue against Izuku’s swollen nub and stroking upwards.
Izuku cried out around his fingers, so Katsuki thrust them deeper, making Izuku gag. Lips vibrating against the sensitive nub, Katsuki muttered, “You’re not supposed to get off without me.”
His voice was husky, raw. Words spoken into Izuku’s cunt. The vibrations of it had Izuku’s thighs shaking on his shoulders. Katsuki loved the feeling, the taste and the smell. When the day was too fucking hard, getting lost in the desperate moans of his lover was the perfect escape. Feeling Izuku’s warm heat clench down on his tongue was transcendent.
He savored tapered whines, begging Katsuki to move faster, harder, prod more at the sensitive nerves of Izuku’s cunt to edge him towards an orgasm.
But where was the fun in that?
Maybe for Izuku, but not for Katsuki who’d wanted his lover beneath him from the moment he started his work day, only to come home to find that the sweet slut had started without him.
Slowly, as Izuku arched his back and reached for Katsuki’s hair, lithe fingers looking for something to pull, Katsuki slipped his fingers from his mouth. He gave one last flick of his tongue against the swollen clit, before pulling his tongue away, too.
He heard the desperate whimper, relished it as he kneeled back on his heels. His cock throbbed, pressed snug against the fabric of his jeans. His underwear was stained, leaking pre-cum betraying the extent of his arousal. He palmed his crotch while watching the wetness of Izuku’s arousal drip off his fat pussy lips.
“Fuck, you’re hot,” Katsuki hissed.
Izuku leaned up on his elbows, brows furrowed in irritation, cheeks flushed. “Then why’d you stop?”
Why’d he stop, huh?
With the click of his tongue, Katsuki rose back onto his feet. Shaking his head, he stepped up to the edge of the mattress, wrapped strong, calloused hands around Izuku’s knees, and spread them further apart. “Because, Deku,” Katsuki grunted, fingers reaching down to slip between soaked folds. “I’m mad at you.”
“Mad?”
“Yeah.” Katsuki clenched his jaw, pulled his hand back, then drove it down hard on Izuku’s sensitive cunt. Izuku convulsed, toes curling as he threw his head back and gasped.”I come home, needing you. And what’re you doing, hiding away? Fucking yourself on your fingers while you wear my shirt? How the fuck is that fair?”
“I- I’m sorry, Kacchan.”
But he didn’t look sorry, not at all. Katsuki looked down at Izuku’s slim body, his pretty, pert nipples, and the way the flush of his cheeks crept all the way down to a sweaty, freckled chest. Katsuki saw the need in his eyes, the insatiable desperation for more. He wasn’t sorry at all.
Katsuki lifted his hand again and watched as Izuku squeezed his eyes shut in anticipation. Katsuki waited, waited… He didn’t want Izuku to expect it; he didn’t want Izuku seeing this as a reward. He waited for a long moment—long enough for Izuku’s eyelids to shift and tentative green eyes to go searching for an answer. It was when his gaze was half-lidded and confused that Katsuki dropped his palm down with the force of an explosion.
He savored the sting of his palm, the pathetic moan that escaped his lover’s lips. This was something he could get used to. This was something he loved.
He watched a drop of arousal roll down the folds of Izuku’s ass to stain the white sheets beneath him. Izuku shifted his legs for a better angle, and Katsuki heard his pussy squelch.
Fuck.
He reached for his own erection, rubbing his hand against the uncomfortable fabric. He wanted it out, wanted to bury the swollen head in the tight heat of Izuku’s womb, let the boy fuck himself on Katsuki’s oversized erection.
But there was time for that, long after Izuku’d been punished.
For now, he bent low over Izuku’s body, lips nudging away the hem of the loose hanging shirt collar to get better access to a nipple. Unceremoniously, he sucked one into his mouth, rolled the nub lightly between his teeth, and listened to the praises on his lover’s lips.
Hand still resting on Izuku’s warm cunt, Katsuki lifted his hand awkwardly while Izuku was distracted. As Katsuki rolled his tongue against the swollen nipple, listening to Izuku’s breathy shudders, he slammed his hand down against his clit.
Izuku cried out, a short but powerful scream that made Katsuki grateful they owned the whole floor, that the neighbors wouldn’t hear such violent cries through thin walls. He popped off the nipple as Izuku inhaled deeply. Katsuki’s eyes flicked up to Izuku’s bunched brows, closed eyes, and gaping mouth. “Count,” he gritted, moving over to the left nipple.
And then he slapped his cunt for a third time, but Izuku only counted it as the first because Izuku knew if he didn’t, he’d only get more to account for the numbers he skipped. Katsuki slapped him again, feeling Izuku’s small body shivering under him.
“Two.”
He pulled up from Izuku’s chest so that he might look down on his artwork, the painting of the boy so crippled underneath him. Katsuki slid his hand against the soft folds, his throbbing entrance. He lifted the hood of his clit to get better access, then slapped his hand against the tender nerve cluster, smirking at the way Izuku involuntarily spasmed, squirting cum onto the mattress. “T-three.”
Katsuki clicked his tongue. “Only three, Deku? You could only handle three fucking slaps?”
There were tears in Izuku’s eyes, so beautiful. His lips were swollen, nose runny. “S-sorry, Kacchan,” Izuku whimpered. He was so pathetic, so useless, so perfect.
Huffing out a heavy breath, Katsuki maneuvered himself onto the bed, man handling the undersides of Izuku’s thighs onto the top of his. Izuku’s cum stain soaked the legs of Katsuki’s pants, and Katsuki’d wear the stain like a fucking badge of honor. Slowly, as Izuku shivered and sniffled, Katsuki fingered the zipper of his jeans, savoring the sound of each of the teeth unclasping. Izuku’s eyes were on him, furrowed in focus. As Katsuki’s left hand kneaded the red, tender flesh of Izuku’s inner thigh, he untucked his heavy cock from his underwear, grasped himself in hand, and said, “Count.”
He slapped his cock against Izuku’s wet pussy. No pain, no panic—just the pressure of a throbbing cock on a sopping cunt, Izuku knowing he had to obey to have it inside him.
“One…two…three…four…five…”
The pressure of his cockhead kneading Izuku’s tender folds made him shiver. A little harder each time, because he liked receiving pain just as much as he enjoyed dishing it out. And Izuku’s shivering gasps were honey to his senses. “That’s right,” he grunted, slipping his shaft between sopping pussy lips. “Cry a little more for me, baby… Tell me just how much you need my cock.”
“K-Kacchan, I’m sorry,” Izuku whined. “Okay? I-I’ll wait next time. Just put it in.”
Katsuki wrapped his fingers around a strong, thick thigh. “Tell me how much you need it, Deku. You keep fucking forgetting you gotta beg for me to fuck you after getting off without me.”
“But-”
Katsuki slammed his hand down onto Izuku’s clit, a visceral whack! Echoing off the walls as the hard joints of his knuckles made contact. Izuku’s body spasmed, back arching and tears finally breaking past his irritated waterlines.
With a stilted, raw whimper, Izuku muttered, “Please. Kacchan, I need you so bad it hurts.”
A warm burst of pride rushed through Katsuki, chest puffed and cock swelling. With a single, anticipatory breath, Katsuki rocked his hips back, aligning his leaking cockhead with Izuku’s hot, wet entrance. He listened to the shudder of Izuku’s breath as he slowly pushed forward, Izuku taking the head, then the shaft, and finally the base in quick succession. Katsuki pressed deeper and deeper until his hip bones were pressed against Izuku’s meaty ass and his blonde pubic hair tickled Izuku’s.
Izuku was so small under him, writhing on his cock as he tried to find comfort on an erection too big for his small frame. And that was one of the things Katsuki was most endeared to, the way Izuku curled up in the fetal position beneath him, or reached his arms around his neck and hung off Katsuki like a koala while the latter fucked into him without mercy. Katsuki liked how he dwarfed him, how when his arms were wrapped around Izuku, the man was completely protected in his strong embrace.
And nothing felt better than being the one to protect Izuku while also being the one to drive him to fits of overstimulation and whorish desperation.
Katsuki leaned over Izuku then, one hand scooping beneath the latter’s neck to cradle his nape. He guided him up as Izuku wrapped lithe, tan arms over his shoulders and drew him into a kiss. Swollen, wet lips pressed damp kisses to the corner of his mouth, his chin, before returning to their original target. A soft tongue licked across his canines, then pushed deeper still. Katsuki pressed against it with his own, tasting saliva as he bucked deep into Izuku’s womb. He wanted more, wanted to fall off the edge he’d been teetering on. Izuku’s hot touch and the moist walls clenching around his erection, the smell of sex wafting through the room, the pitiful mewls of his lover as Katsuki rocked and thrust and bucked his hips…
The sensations trickled down his spine, trailing to every individual nerve ending as his balls drew up into his body and he came, unceremoniously, into Izuku’s raw cunt. He heard the gasp on his lover’s lips as the man broke their kiss, how they only grew in quantity as Katsuki fucked his cum into Izuku until the boy, too, was cumming in a spasm.
Katsuki watched the scarlet shade of his cheeks turn briefly to purple, how his expression stuttered, and his nails dug into Katsuki’s shoulder blades. His chest rose and fell with every passing moment, sense and reality returning to his sex-spent brain. And when it had, dilated doe-eyes found Katsuki’s, and a mischievous smile came to fix itself on Izuku’s face.
“What a turn of events,” he cooed, manhandling Katsuki’s body onto the bed beside him. He reached for a pillow for the two of them to rest their heads on, then curled up against Katsuki’s chest. Katsuki’s hands wrapped protectively around him, and Izuku hummed at the sensation of being enveloped.
Katsuki felt lithe fingers trail upon his chest, a small voice whispering, “How was your day?”
Katsuki shrugged, Izuku’s body moving with the budging of Katsuki’s shoulders. Izuku giggled as Katsuki said, “Better, now. Work was frustrating, but my day’s always better when I get to take those frustrations out on you.”
Izuku scoffed, lips moving against his collarbone. “Of course you would, you pervert.”
“Says the fucking masochist.”
“Hey-” Izuku pulled away from Katsuki then, only enough to look him dead in the eyes. “You fucking love it, and I know you do. So don’t go acting like me getting my pussy slapped isn’t turning you on, as well.”
Katsuki looked at his lover, the way sweat soaked curls clung to his forehead, his soft, pink lips and the freckles that looked like stardust on his cheeks. Katsuki held him closer, feeling the beat of his heart against his chest, the way his feet moved beneath Katsuki’s—ice cold and using Katsuki as a heater, just as it had always been.
There was nothing about Izuku that wasn’t captivating, nothing that didn’t make Katsuki want to drop to his knees the moment he stepped through the front door. This man was his—his love, his life.
“You know,” he said, maneuvering over Izuku’s body so that Izuku was bathed in shadow. Katsuki watched the way his cheeks flushed, the way he grinned at Katsuki’s boldness.
Katsuki dipped down for a single, seconds-long kiss, then pulled away with the same grin he’d made when he’d reached the top of the hero charts. “With you, what wouldn’t fucking turn me on.”
Izuku’s smile brightened. Tan arms wrapped around a strong, pale neck, and Izuku pulled Katsuki in for round two.
Katsuki prayed for many, many more.