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After a shift that felt much too long for him, Izuku came home to collapse directly into his large bed. He was still clad in a nearly destroyed hero suit, caked in dirt, blood, and who knew what else.
Typically, he would strip out of the bulky layers before even leaving the agency, but today had been long, hard and Izuku had barely even made it home successfully.
So forgive him if he ruined their sheets, just this once. He was beyond exhausted and deserved to sleep for at least another thirty years. He face-planted into the mess of blankets, pillows, and plushies that was his and Kacchan's bed and prayed to the various Gods to not suffocate him mid-nap.
Izuku wasn't sure exactly when Kacchan got home, or even how much time had passed between falling asleep and being woken by lingering touches over his shoulders.
"Mm," Izuku said into the pillow. Kacchan snorted and began kneading into the knots in Izuku's tense shoulders.
"Tough day?" Kacchan whispered. He yelled enough during his shifts that the quiet, strained tone didn't surprise Izuku. In fact, he moreso expected it when the two were home.
"Mm," Izuku said again instead of a real reply, rolling his shoulders into Kacchan's large, soft hands. It wasn't skin-on-skin contact with all of the thick layers of his uniform, but Izuku had felt it enough times to imagine the feeling.
"Was for me too," the blonde replied, suddenly closer to Izuku's ear than he had been just a moment ago. Izuku felt sturdy, thick thighs settle on either side of his body; he pictured Kacchan straddling his hips while he whispered in his ear and massaged the tension out of Izuku's shoulders.
It wasn't hard to envision, especially with the heavy weight pressing against his ass.
"You deserve a bit of release, hm?" Kacchan purred, his touches lingering the slightest bit more, running down Izuku's sides.
"Ah," Izuku inhaled a sharp breath, turning his head to the side, out of the comfort of their pillows. "Kacchan does too."
"Nah, takin' care of you is release enough, baby." An involuntary shudder racked through Izuku's body. "Mm, yeah. You like the sound of that? Roll over for me."
Izuku waited until the pressure of Kacchan's body eased before he rolled over, finally opening his eyes. It took him a moment to adjust to the light in the room. The lights were off–Izuku hadn't bothered even shutting them off when he'd passed out–save for the lamp on the nightstand.
Kacchan was beautiful, the lamp casting a soft, warm light over the side of his face. He was still in a battle-torn costume of his own, covered in evidence of his hard-fought day. But still beautiful.
His hair was tousled, he'd probably only just gotten off from work and come home to see a half-dead Izuku in their bed. His day must have really been just as bad as Izuku's to not have yelled at him on the spot. Izuku felt himself laugh, gazing up at his wonderful boyfriend.
"The fuck you laughin' at?" Kacchan rasped, managing to look amused as he leaned in, trapping Izuku's wrists under one powerful, soft hand.
Huh. He wasn't wearing his gloves, then.
"Mm, nothin'," Izuku slurred. "Just thinking."
"About?" Kacchan raised an eyebrow, tilting his head, their faces just inches apart.
"How much I love you." Izuku leaned forward just enough to press a chaste kiss to Kacchan's soft lips.
"Mm," Kacchan hummed. "that so?"
Izuku nodded as Kacchan trailed hot, open-mouthed kisses over his jaw and down his neck. Izuku let out a quiet gasp before responding. "Ah, yeah. Love you so much, Kacchan."
"Mhm, love you too, nerd." Kacchan paused to push away the fabric of Izuku's costume at his neck, sucking and licking at his pulse point. "Gonna make you feel good, kay?"
"Mm," Izuku arched his back as Kacchan tugged on the zipper at his front, exposing more of his neck to his adoring gaze. "kay."
Kacchan trailed his lips back up to Izuku's mouth, meeting them in a fierce kiss that didn't match the intensity of his touches. His hands were soft and caring; wandering under bulky fabric as it was peeled away, gently caressing and fondling as if he were precious.
But his mouth was possessive and harsh, biting at his lower lip to demand an entry that Izuku wouldn't have put up a fight over. His tongue licked behind Izuku's back teeth, claiming it as if he'd never get to feel Izuku's mouth on his again.
Izuku released short little mewls and moans for Kacchan to swallow. The two pulled apart after a moment, both men heaving for breaths.
All the while Kacchan's hands continued roaming, pushing up the thin fabric of Izuku's tank top. He placed his hand flat right below Izuku's navel, nipping at Izuku's lips again.
"Gonna keep going, yeah?" Kacchan asked, voice somehow both soft and rough, sending shivers down Izuku's spine.
"Yeah," Izuku breathed, licking his lips.
Kacchan trailed hot, wet kisses down his neck while his hands busied themselves with pushing away the layers of his costume further. He pulled the zipper down lower and lower, exposing the strained erection in Izuku's boxers to the hot air of their room. Izuku briefly pondered if it was possible their air conditioning had broken.
Izuku whined, fingers tangling in blonde spikes as he trailed kisses lower and lower, laying delicate praise to his body.
"So strong, baby," Kacchan husked with a short nip to his lower abdomen. "There's a reason you're number one, y'know?"
Izuku inhaled sharply, thighs already beginning to shake from the stimulation. "Mm, I'm only number one 'cause they made Kacchan take a leave of absence last month."
Kacchan growled and nipped at his navel. "Shuddup. I'm tryna compliment you, jerk."
Izuku yelped and giggled, petting his hand through Kacchan's hair.
"Okay, okay. Sorry," he let out a slow breath, watching as Kacchan held eye contact as he peppered light kisses right above his waistband. "Mm, keep going."
"You're so perfect, Izuku. All this, out there saving people day in and day out." Izuku let out a soft whimper, rolling his hips as Kacchan lifted one hand to grab Izuku's thigh and another to rub at Izuku's hard-on.
"Mhh, Kacchan, please."
"Please what?" Kacchan licked over his teeth and Izuku felt his cock pulse painfully in his boxers.
"Anything, please. do whatever Kacchan wants, please, just–"
Kacchan grinned, feral and sharp as he nipped at Izuku's exposed thigh. "Dick or ass?"
He lifted up slowly from where he had been lying on his stomach and taking Izuku's lower half with him. Izuku blinked slowly, confused.
"Huh? Wha–?"
Kacchan growled. "Dick or ass? Not that hard to answer a question, 'zuku."
"A-Ass...?" Izuku said slowly, unsure and a little cautious.
"Alright," Kacchan muttered before Izuku's world was shifting, spinning around him. One moment he was lying on his back and the next Kacchan lay beneath him, guiding Izuku to straddle his chest. He blinked a handful more times, a little disoriented.
"Sit," Kacchan said, licking his lips in a way that left Izuku unable to misinterpret any longer.
Kacchan guided him up with a firm grip on his thighs and Izuku sat.
On his face.
It would've been mortifying, and had every right to be, but Kacchan was digging his fingers into his thighs and making him roll his hips against his face.
Okay, yeah. Definitely still mortifying.
Izuku covered his mouth with a hand as his face went bright red, eyes wide as saucers.
"You're the one that said ass, sweet cheeks," Kacchan purred, rolling down the waistband of Izuku's boxers deliberately. As soon as Izuku's ass was exposed enough, Kacchan gripped and rolled his wrists, kneading the flesh, spreading him open.
It tore a gasp from Izuku's throat and left him wondering if Kacchan had meant the pet name in a literal sense.
It was Kacchan after all, so probably.
"Mm," Izuku said, instead of moaning as he rolled his hips pitifully against Kacchan's soft hands. "How was I s'pposed to know you meant this?"
"Oh, c'mon, baby," Kacchan drawled, deep and so sexy. "Y' gotta brain, use it."
Kacchan didn't give Izuku a chance to use his brain though, pushing his face between plush cheeks and licking. All the breath tore from Izuku's lungs along with any semblance of restraint.
Not that either men needed it, or would even use it.
Izuku's hands found their place in Kacchan's hair clumsily, his hands still gloved. The rest of his costume pooled at his ankles, all Izuku would have to do was kick the fabric off, but his mind was elsewhere.
Kacchan licked a slow stripe down the cleft of his ass before flattening against his fluttering rim. A gasp tore forcefully through Izuku, his thighs trembling. His need for Kacchan felt violent, and it always did.
It didn't matter if he was teasing or not–Kacchan always did anyway, it was more a matter of when not if–Izuku needed Kacchan in all ways, in every way, every moment of every day.
He'd known for a long time that Kacchan felt the exact same.
Proven by the way Kacchan growled low in his chest, the sound reverberating through his body and into Izuku's, before flicking his tongue into Izuku's sex.
Izuku's hands tightened in Kacchan's hair almost instinctively, a strained moan leaving his throat as he bucked his hips against Kacchan's face.
Kacchan groaned, gripping Izuku's thighs tighter to lick into him deeper. His tongue was searching, claiming Izuku much the same as he kissed; desperate and like he'd never experience it again. It was so hot, it had Izuku trembling and becoming a keening, drooling mess in no time.
"Ah... Ffngh–Kacchan, Kah–" Kacchan growled beneath him and Izuku, with closed eyes, heard the sound of the bed creaking beneath them. He very likely could assume the sound was caused by Kacchan's mindless bucking hips.
Izuku whimpered, tugging and pulling as gently as he could to guide Kacchan's tongue deeper. "Please, please–cchan. Don't–ah, more, more," He pleaded mindlessly, his head falling back as he rode Kacchan's face.
It felt nearly humiliating, but that was part of the fun for Izuku anyway. To feel Kacchan tear down all his reservations and destroy him with mind-blowing orgasms.
It always was more than good and Izuku trusted his Kacchan implicitly.
Kacchan's tongue brushed that tight bundle of nerves and Izuku squealed. "Ah! Kacchan–'m gonna, gonna–"
Kacchan growled and pulled out of Izuku's hole, drawing out a small whine. Izuku bucked his hips uselessly in a silent plea for him to keep going.
"Kaaaacchan..."
"Patience, Goddamn," Kacchan said, voice a rough growl.
Izuku was prepared to protest again, to beg to have Kacchan's tongue–or anything, really–back inside of him, but his brain got cut off entirely when Kacchan surged forward and took Izuku's cock in his mouth in one go.
Izuku shrieked, nails digging into Kacchan's scalp and rocking his hips deep in Kacchan's tight throat. "Hah! Ah–ah, Kacchan! Oh–oh."
Kacchan groaned around his cock, fingers gripping Izuku's cheeks and guiding his mindless thrusts, letting him fuck into his mouth with a better rhythm.
Fuck, Izuku adored this man; loved him with all of his heart, in every conceivable way.
Kacchan hollowed his cheeks and brought Izuku's thighs to tremble all over again. Izuku let out little whimpers and moans between heaved breaths, curling forward to rest his forehead atop Kacchan's head as he rutted into Kacchan's slick mouth.
"Ah–K'cchn, I'm gonna–I'm gonna. Oh, don't stop. F-Fuck."
The world went spiraling out of Izuku's perception with his eyes squeezed tightly. He came violently, spurting into the very back of Kacchan's throat. Kacchan grunted, muffled by the pulsing cock deep in his throat, and Izuku keened, high-pitched and desperate.
Izuku collapsed on the bed beside Kacchan, face down on the sheets. He kept whimpering mindlessly, body twitching involuntarily as his body slowly came down from the mind-numbing high Kacchan had brought him to.
Kacchan slowly moved above him, pressing his tight bulge to the cleft of Izuku's ass as the haze dissipated.
"Ya still wanna give me that release too, baby?" Kacchan rasped, voice gravelly and broken from Izuku's cock.
And how could Izuku say no? He wouldn't, he couldn't.
Kacchan pressed his tip to Izuku's fluttering hole as Izuku nodded, and gripped the sheets for dear life.
"Yeah, yes. Kacchan."