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“Kacchan.”
Katsuki scrunches his eyebrows, trying his best to tune out the whispering coming from behind him.
“Kacchan, are you awake?”
It’s almost like it’s not even there. Just an errant breeze blowing through the trees outside, the rustle of leaves playing tricks on his mind.
“Kacchan-”
“Fucking- what, Izuku?”
Katsuki turns over his shoulder, giving Izuku his most irritated scowl. It probably doesn’t look that intimidating in the dark, and that only serves to piss him off even more.
“Can I get in your sleeping bag with you?” Izuku asks, blinking innocently at Katsuki as if he hasn’t just asked the stupidest thing he’s ever heard.
Katsuki grits his teeth, opening his mouth to respond, but he pauses when he hears the rustling of one of their classmates shifting in their sleep, holding his breath until they settle back down.
Before they went back to school for their third and final year at U.A., it was decided they should all take a camping trip together, something about bonding and relaxing or whatever, Katsuki doesn’t care. He was practically forced to come, Izuku not letting him spend the week the class was going to be out here alone at his house. It’s admittedly less annoying than Katsuki was anticipating it to be.
Camping is a pretty loose term for what they’re doing; really, they’re just staying at one of Yaoyorozu’s family’s cabins (If you can even call it that. It’s huge.), a relatively remote one settled in the woods outside Musutafu. They do all have to sleep on the floor of the living room together since there’s not enough bedrooms for all of them, but despite that, it’s still nice. The scenery is really beautiful, and there’s a nice clear lake just a short hike away. Katsuki is, honestly, having a really good time.
“Kacchan?” Izuku’s voice brings him back to the present, and Katsuki huffs in renewed annoyance. He has to constantly remind himself that he loves Izuku very much, that they are in a happy, healthy, long-term relationship, lest he choke the other boy for how often he manages to find Katsuki’s very last nerve and do a little Irish jig all over it.
“Why do you want to get in my sleeping bag?” Katsuki asks as calmly as he can manage. Izuku bites his lip, watery green eyes looking almost luminescent in the moonlight.
“I miss you.”
Katsuki blinks, “You… miss me.”
“Yeah.”
“Izuku, I’m like- less than a foot away from you.”
“That’s too far!” Izuku hisses, and they both pause when they hear someone groan in their sleep and the sounds of sheets ruffling before the room fades back into silence.
Katsuki takes a deep breath, holding it for a few seconds before he lets it back out slowly. “You know what? Fine. Fine, whatever.” Izuku is scrambling out of his own sleeping bag so fast Katsuki is surprised he doesn’t hear fabric tearing, zipping down the side of Katsuki’s so he can slip into it behind him. Katsuki settles back onto his side as Izuku zips the sleeping bag back up, grumbling when Izuku’s hands immediately find the soft muscle of his pecs as he settles in behind him, groping and squeezing like the pervert he is.
“Mm, Kacchan’s so warm and cuddly.” Izuku whispers, breath fanning against the back of Katsuki’s neck, who suppresses a shiver at the feeling.
“‘m not cuddly.” Katsuki mumbles petulantly.
Izuku plants a wet kiss against the back of his neck, pressing his face into Katsuki’s hair and taking a long, drawn out sniff. It should be weird, but Katsuki has long given up on understanding why Izuku’s weirdness appeals to him. Maybe he’s weird too.
“You are. Cuddly and cute.” Izuku insists. Izuku presses soft kisses against the back of his neck, massaging Katsuki’s pecs in his hands like they’re his own personal stress balls. It’s kind of nice, in a way. When Izuku sleeps over at his house, or in his dorm when they’re in school, both of them often end up falling asleep just like this, with Izuku fondling Katsuki without a care in the world.
The relaxing atmosphere doesn’t last long though, especially not when Izuku takes his hands off Katsuki’s pecs only to ruck up his shirt inside the sleeping bag, returning his hands back to Katsuki’s chest now that he can feel bare skin. Katsuki jolts when Izuku’s thumb finds one of his nipples, rubbing slow circles around the nub before pressing into the pebbled peak.
Katsuki inhales sharply, biting his lip against the urge to moan at the feeling. He didn’t have a particularly sensitive chest before he and Izuku started dating, but as soon as he gave Izuku the chance, he was giving Katsuki’s chest more attention than it’s ever gotten in his life. Now, even the slightest touch is enough to get him wet, and when Izuku decides to be mean and make him cum from just his nipples, he has to wear bandaids over them for the next day. Even just the brushing of his clothes is enough to weaken his knees sometimes.
“Fuck- stop it, what’re you doing? There’s people!” Katsuki whispers harshly, pulling on Izuku’s wrist, trying to dislodge him from his sensitive chest. Even without a quirk, Izuku’s still physically stronger than him, and Katsuki can’t deny that Izuku being able to overpower him in even the simplest of things turns him on. Izuku’s hand doesn’t budge even a little bit, and in fact, he decides to just be meaner, pinching and tugging both of Katsuki’s nipples.
“They won’t know if you’re quiet, Kacchan. So be quiet.” Izuku says as if it’s the most obvious thing in the world, but Katsuki doesn’t have the brainpower to retort, all of his focus on the mantra running through his head of don’t be loud, don’t be loud, don’t be loud-
His toes are curling and flexing inside the slippery fabric of the sleeping bag, and he feels the uncomfortable squishiness of his wet underwear against him as his legs twitch together for any kind of friction. Izuku gives him some reprieve by letting go of one of his nipples, trailing scarred fingers down Katsuki’s smooth stomach until they meet the waistband of his shorts. Izuku lets the tip of one finger just barely dip beneath the waistband of the shorts, chuckling into the blonde’s neck at the way Katsuki’s hips give a short buck up into his hand.
“You tell me to stop but you’re so eager for it.” His hand finally slips into Katsuki’s shorts, cupping his cunt through his panties, “And you’re soaked too. I bet they’re see through by now.” Katsuki whines at the embarrassing words, hips twitching into the light touch Izuku trails against his folds through his underwear.
“Izuku…” Katsuki pants, biting his lips to stifle a moan when Izuku’s hand makes its way into his panties, fingers rubbing slow circles against Katsuki’s clit. Everything feels sticky and hot and wet, and it doesn’t help that the both of them are shoved together in this sleeping bag that is very much only designed for one person, soaking up the growing heat of each other’s bodies.
“Always so wet, baby.” Izuku’s tongue traces the shell of Katsuki’s ear, sending a shiver up his spine. “Shh, Kacchan, listen. Can you hear it?”
Katsuki whimpers, holding his breath so he can listen like Izuku told him to. After a moment, just barely audible over the rushing of blood in his own head, does Katsuki begin to hear it. The obscene sticky sounds of Izuku rubbing his cunt, the noise of slick squelching between his legs when Izuku fucks a finger into him, pulsing the digit back and forth for a moment before adding another.
It’s so fucking good, mind numbingly so, and it’s all Katsuki can do to keep his noises under control when Izuku is playing him like a well loved instrument. The tugging and teasing of his nipples, the way Izuku’s hand speeds up between his legs until the wet noises of Katsuki’s pussy are hard to mistake for anything but Katsuki getting sent to another planet by Izuku’s fingers, all of it is too much. Too fucking much. His gut is clenching harshly, toes curling, and he’s only able to squeak out a muffled ah, ah! before he’s cumming into Izuku’s hand, absolutely drenching them both as he shakes and squirts.
“Good boy. You’re so fucking good for me baby, that’s right. Just let it out.” Izuku purrs into his ear, and Katsuki can’t help the sob that bubbles up out of his throat. The intense pleasure turns sharp with overstimulation, and still Izuku’s hand hasn’t stopped fucking into him. It hurts, and it’s so good that tears are spilling down Katsuki’s cheeks before he’s even processed that he’s crying.
Izuku’s hand finally slips out of him, leaving him sticky and tender. The sleeping bag is disgusting with how wet it is, and it’s starting to get cold. His face is hot and clammy, lips swollen from how hard he was biting them while trying to keep quiet. He needs a shower and to wash his nasty ass sleeping bag, but his thoughts are interrupted when he feels Izuku shifting behind him, something hot, hard, and wet pressing into the small of his back.
“W-What’re you doing?!” Katsuki whisper-yells, trying and failing to squirm away when Izuku pulls him into his chest, shimmying Katsuki’s ruined shorts down to his mid-thighs.
“Kacchan, don’t be loud. You’ll wake everyone up.” Izuku says in a complete non-answer to Katsuki’s question. Instead, Katsuki feels the familiar head of Izuku’s thick cock pressing against his hole, swiping through his folds to collect his slick before he finally presses into him, knocking the air from Katsuki’s lungs.
The stretch is amazing, his own fingers or any toy he’s ever tried have never even been close to comparing to what Izuku’s got between his legs. Long, thick, and beautifully curved to hit his g-spot perfectly without fail. They don’t have much room in the sleeping bag for Izuku to fuck him properly, but the short, pointed thrusts that hit every single one of Katsuki’s sweet spots has him drooling almost immediately.
“You’re so tight when I fuck you like this.” Izuku murmurs, breathing his own pleasured pants hot against Katsuki’s ear. Izuku’s grip is bruising around his hip, keeping him still so he doesn’t jolt too far from Izuku’s hard thrusts as his other hand finally leaves Katsuki’s swollen and abused nipples alone to shove two fingers into his mouth. Katsuki chokes around the thick digits before he manages to get his bearings, trailing his tongue across raised scars and swallowing around them.
Izuku speeds up his tempo until the muffled clapping of Izuku’s hips against Katsuki’s ass is unmistakable for what it is, and if Katsuki had the presence of mind to take in and process that fact, he’d probably be embarrassed. Right now though, all he wants is for Izuku to fuck him harder, touch him more, and Izuku knows him so well, so that’s exactly what he gets.
Izuku’s hand leaves Katsuki’s waist to find its way between his thighs again, fingers slipping in slick before they find Katsuki’s chubby clit, stroking over the hardened nub. Katsuki whines from the back of his throat, unable to decide between twitching into Izuku’s hand or fucking himself back on the thick cock inside him. He doesn’t end up having to decide though, because Izuku leans over him, pressing Katsuki onto his stomach against the floor so he can get a slightly better angle to fuck into him.
Izuku’s fingers pull out of his mouth, smearing spit over his lips as Izuku clasps a hand over his mouth, preventing any noises from escaping as he pounds Katsuki into the floor, breathing hot and heavy against his nape.
“Fuck yeah, Kacchan, just let me fuck you. Cum for me baby, come on, cum on my fucking cock, I wanna feel you squirt again.”
A strangled whine leaves Katsuki’s throat and he can’t help doing just that, thrashing under the tight press of Izuku’s body weight as he cums again, squirting in spurts around Izuku’s cock, pussy rippling with his intense orgasm.
Izuku pants into his hair, pinching Katsuki’s clit and groaning at the way he squeals and his legs involuntarily kick out at the feeling before he’s pressing in deep, a boiling warmth filling him. It keeps coming, rope after rope after rope of thick cum spilling into him, so much that it has nowhere to go but out, cum oozing out of Katsuki’s pussy around Izuku’s cock.
“A-Ah, Kacchan fuck-“ Izuku keeps rocking his hips into him as he just keeps cumming, eventually pulling out to finish spraying hot ropes across Katsuki’s ass and up his back. Izuku sits up as much as he’s able, freeing his hand from beneath Katsuki’s stomach to milk the final waves of his orgasm from himself until Katsuki’s skin is drenched in it.
“Fuck,” Katsuki croaks, shifting uncomfortably in the absolutely debauched sleeping bag, “I always forget how much you cum. It’s everywhere.”
“Mmh. You like it though. Kacchan’s a bit of a cum slut, huh?” Katsuki shoots a glare over his shoulder, but Izuku just laughs quietly, sticky fingers fumbling with the zipper of the sleeping bag until he can pull it down, giving them a bit more space to maneuver. When Izuku has enough room to fully sit up, he hooks his thumbs into Katsuki’s ass cheeks, pulling them apart to watch the cum slowly leaking from his fucked open hole.
“You’re pretty like this.” He murmurs, absently trailing a finger through the mess of Katsuki’s pussy, collecting his cum so he can push it back inside just to watch it seep out again. Katsuki shivers, feeling like a used up toy that Izuku’s just playing with, his hole fluttering at the thought, which doesn’t go unnoticed by Izuku. Still though, he’s dirty and sticky and he’s not going another round.
“Get off me, creep.” Izuku sighs wistfully, giving Katsuki’s pussy one last longing look before he tucks his dick back into his pants and stands up, offering a hand to Katsuki, who glowers but takes it. He’s fucked Izuku enough to know his legs have their limits.
It feels gross to just pull his clothes back on over all the mess, but he’s gotta shower and change anyway, and there’s no sense in walking around the house naked until then. Someone could see them, after all.
Izuku balls up Katsuki’s ruined sleeping bag, Katsuki awkwardly shuffling after him towards the laundry room with his post-creampie waddle. Katsuki blushes at the thought, pinching Izuku’s bicep in retaliation.
“Ow! Why’d you do that?” Izuku rubs the sore spot, tossing the sleeping bag in the washing machine, eyeing Katsuki warily as he shuffles past him to reach the detergent.
“It’s your fault.” He mumbles, and resolutely refuses to grace his boyfriend with an answer when Izuku asks ‘For what?’
He should know by now for what. What kind of stupid question is that?
Once the laundry is started, they find a bathroom in this maze of a mansion, and if Izuku eats him out under the fancy rainfall shower head, nobody needs to know that but them.
Once clean and dressed in clothes that aren’t covered in various bodily fluids, they toss those in the laundry as well and head back to the living room to go to bed. Properly this time.
They do have to share Izuku’s sleeping bag, but that’s fine. They snuggle in together, sharing each others warmth, and just as Katsuki’s about to slip off to that peaceful dreamland he gets after a good fuck and a nice shower, he’s rudely interrupted.
“You know you guys aren’t quiet like- at all”?
Katsuki stiffens, and he feels Izuku do the same behind him.
Fuck.