KINKTOBER DAY 9: Somnophilia (comm from @/lapin_koi)
Bkdk where Katsuki is the famous idol Izuku's bodyguard. Izuku, known as "Deku", is lithe and curvy, a mere 5'2", whereas Katsuki is bulky and broad-chested, standing at 6'1". Izuku initially protests having a bodyguard, +

especially disliking Katsuki's rude attitude, but that soon changes the first time Katsuki risks everything to save the small, assertive man. From there on, Izuku's general view of Katsuki is "Kacchan sugoi!" (because being an idol, of /course/ he has to make everything cute, +

including Katsuki' damn name), and the two are inseparable. They live together so that Katsuki can be with Izuku as often as possible. Even when the two take a "break" from each other, they have to stay within a certain distance of each other. Katsuki's done this kinda long-term+

work before, because it's insanely well-paid, and Katsuki doesn't have much of a personal life, but his previous experience had been horrendous. The talk-show presenter, Monoma, had been an absolute brat, and Katsuki quit two months into the work. But, and this is a fucking +

/secret/, he adores Deku. They've been living together a year and a half, and Katsuki vows that he'd protect Deku until the end of time. He dreads the day when Deku finds someone to settle in with, when he retires and decides that Katsuki's presence is no longer needed. Of +

course, he knows that Deku values him as more than just a bodyguard ("You're one of my best friends, Kacchan, you always will be," Deku had informed him solemnly about seven months ago. The phrase has stuck in his mind), but it's still a fear. With long-term jobs like this, it +

goes one of two ways: you get along well with the client, and grow close to them, or you despise the client, and leave. He's experienced both, but words don't quite describe just how close he is to Deku. The only time they're apart is when Deku's literally using the bathroom (if+

he's taking a shower, Katsuki sits on the other side of the shower curtain and occupies himself, usually chatting to Deku whilst the idol showers). They sleep in the same damn bed, for fuck's sake. His agency is a unique one, wanting to provide a "human connection" to get rid of+

fear from the client directed towards the bodyguard (Katsuki only joined the happy-go-lucky agency because one of his best friends, Kirishima, fucking insisted), so he's not breaking any rules, but when he wakes up with Deku next to him, hair spread in a halo, when he shuffles +

to the kitchen to make Deku breakfast and is later greeted by the sight of the bleary man stumbling into the kitchen in nothing but an oversized shirt and a "Good morning, Kacchan…" on his lips, Katsuki sometimes feels like he's living with a lover. There's no doubt that he +

/is/ in love with Deku, but Deku's such a sappy dork that even if Deku loved him back (which he doesn't, it's not fucking possible), Katsuki wouldn't know.
People (namely his nosy friends) have asked him how they deal with sexual frustration if they're together all the time. +

"Dude, you even accompany him to the bathroom!" Kaminari laughs (Kaminari is Kirishima's boyfriend, a past client of his. Katsuki would never tell them, but he's jealous as fuck). "He can't even finger himself in the shower, you can't even jerk it, how do you /survive/?" +

Katsuki scowls and punches him in the arm, but explains to him how it works: whenever one of them feels pent-up, or turned on, they just excuse themselves with the exact phrase, "I'm /quite/ sleepy," and go to the bedroom without the other tagging along. It works well enough, +

despite how embarrassing it can be in certain situations (Katsuki thinks back to one time when they were play-fighting and Katsuki had to blurt out "I'm quite sleepy!" and move away). But it's not usually an issue.
Which comes to this day, because right now, Katsuki is feeling +

suspicious as hell. It's 7pm in the evening, and this is Deku's /sixth/ time excusing himself in the day. As Katsuki watches him go, trying to ignore the slight limp of the idol as he disappears into their bedroom, he thinks back to everything they'd done that day. It's, as far +

Katsuki's concerned, been a pretty ordinary day. Katsuki woke up at 8a.m., with Izuku cuddled in his arms. Detaching himself from the sleeping beauty (seriously, he's gorgeous when he's asleep, it's unfair), he padded over to the kitchen to make enough waffles to share between +

the two of them. The heat from the waffles had him sweating, for some reason, so he took his shirt off, hanging it behind his chair. Deku had entered, said good morning, and then had suddenly proclaimed he was quite sleepy and had left. Katsuki ate breakfast alone. Not fun. +

After that, it was a pretty uneventful morning. He did his morning workout, the first half with Deku spotting him and helping him out (by sitting on his back during pressups, that kinda thing: he's tiny so he always fits), the second half alone because Deku had excused himself +

/again/. Then after lunch, when Deku had stuck his tongue and said "Make me!" when Katsuki told him to help him take the trash out, they had run around the apartment, Katsuki chasing Deku. Deku squealed with laughter when Katsuki had pounced on him, grabbing him by the hips and +

playfully growling, "Gonna help me out now, Deku?" But Deku had squirmed his way out of doing the chores by mumbling "I'm quite sleepy" and rushing off to the bedroom. The fourth time, Katsuki stepped out of the shower. "Are you done here?" Deku chirped, perched on the sink. +

"Obviously," Katsuki responded, and Deku nodded and said, "Well in that case, I'm quite sleepy."
The fifth time... Katsuki doesn't actually remember what he doing. Washing the dishes? Something mundane. Deku slipped on something and Katsuki caught him, not only because it was +

his job, but also because he didn't want Deku getting hurt at all. "Thanks, Kacchan," Deku beamed, wrapped up against Katsuki's chest.
"Be more fucking careful, dumbass," Katsuki grumbled, flicking his nose. Deku blinked and moved away, saying, "I uh, I'm quite sleepy." +

And now... They've been practicing one of Deku's dance routines for his upcoming routine. Katsuki's no professional, but he can dance well enough to fill in one of the backups whilst Deku practices. Katsuki's in a stance with his legs spread, arms crossed over his head as he +

rolls his torso.
"Deku, you've got the perfect damn curves for this, why are you hesitating so much?" Katsuki tuts, moving towards him and standing behind the idol, meeting his eyes in the mirror. "You're not concentrating."
"I can't concentrate when you're doing the same +

move!" Deku whines. Katsuki places his hands on Deku's wide hips and squeezes lightly.
"Yes you can, I'm showing you how it's fucking done," Katsuki mutters. "Move from your hips, hold the stance boldly. Like I said, you got the body for it."
And then Deku's /excusing/ himself, +

(Tweet limit's tryna be a bitch but this is the perfect opportunity to tell y'all that sexy AF move Katsuki's doing is from EXO's 'The Eve', because that is hands down one of the sexiest choreos ever. Don't believe me? See for yourself: )

Katsuki chasing him out of the room before stopping as Deku swerves into their bedroom. Fuck. What the hell is up with him? Whatever. He's not bothering with this bullshit.
He goes to the living room, sitting down without bothering to change and puts on some random Netflix +

show. About forty minutes later, Deku returns, sheepishly placing himself next to Katsuki and settling into his chest. Katsuki doesn't react, doesn't move his arm to rest around Deku's shoulder as he usually does, but when Deku looks up at him under long lashes and nuzzles into +

his neck, Katsuki gives up, wrapping his arm around Deku. Deku sighs contentedly, watching the show, but Katsuki can't concentrate. Why? Because he can /smell/ sex on Deku. Did-Did Deku not clean up after orgasming? Why does it smell so strong? Why is Katsuki so affected by it? +

Yeah, he's attracted to Deku, but this is a minor thing. Still, he can't help the way his body reacts, so he opens his mouth to say "I'm quite sleepy", except... Deku beats him to it.
"Are you fucking serious?" Katsuki snaps. "You've gotten off six times today, you horny bunny!"+

Deku flushes a bright red, and Katsuki swallows, realising what he's just said.
"I-I meant I'm literally tired, Kacchan," Deku stutters. "I wanna go to sleep."
"Oh. Right. Fine, let's fucking go."
"U-Um, c-could you carry me? I feel kinda sore..."
"No shit, Deku, you've spent +

pretty much the whole day fucking yourself."
"Kacchan! Language!" Izuku says, yelping as Katsuki chuckles and picks him up in a fireman's carry. "Nooo, Kacchan, not like that!"
"You ain't my fucking bride, I'm not carrying you all tenderly," Katsuki snorts as he strides down the+

hall with the tiny man in tow. It's times like these that he remembers just how /small/ Deku is. Deku's got a loud personality and a tendency to go feral, so Katsuki often forgets that this is someone he needs to protect. No wonder Deku was initially reluctant about having a +

bodyguard: he's plenty capable by himself.
"That's not how you act when you gently carry me to bed after a performance!" Deku giggles. They enter the bedroom and Katsuki lays him down on his side of the bed, scoffing as he responds:
"You've been lazing around all day, it's not +

the same."
"Kacchaaaan, you're so mean," Deku complains as Katsuki strips, getting into bed in his boxers. It used to be awkward, but at this point, he's used to sleeping next to Deku in near to nothing. He pouts, throwing a pillow at Katsuki, who catches it easily and throws it+

back in his face.
"Some bodyguard you are, attacking me like that," Deku huffs, a yawn interrupting the rest of his speech. "Okay, mm, I'm gonna sleep. 'Night, Kacchan!"
"Sweet dreams, dumbass."
***
When Katsuki thinks back on this particular night, he thinks that maybe Deku's +

"I'm quite sleepy" did have sexual implications after all, because he wakes up that night to friction against his crotch area. He's erect, there's no doubt about it, he can feel his dick aching, but he doesn't know why at first. It's not like he's had a wet dream. The answer +

comes to him as his eyes adjust to the darkness. Deku's... Deku's pushing his naked ass back against Katsuki's dick. Fuck. Katsuki's always fantasised about that ass being pressed up against him, wondering if it was big enough to swallow Katsuki's sizeable dick up. The answer is+

a resounding /fuck yes/, but this isn't how Katsuki wanted to find out. Deku's /asleep/, meaning he hasn't consented to this. If the young idol was awake, this wouldn't be happening. But as it is... Fuck, Katsuki's paid to /protect/ him. He needs to put an end to this. He's not +

gonna wake Deku up, he doesn't wanna mortify him, but he'll roll away, or push Deku's ass away or... Yeah, yeah, he'll try that. It's /not/ an excuse to sink his hands into Deku's big, plush ass, the very same that has dozen of fan pages dedicated to it, but when Katsuki puts +

his hands on Deku's luscious ass, Deku fucking /moans/ and shoves his ass back against Katsuki's throbbing erection. Katsuki whispers a silent apology. He can't do it. He can't hold back, not when Deku's body is so /pliant/. He massages Deku's ass cheeks, spreading and squishing+

them as he pulls his thick cock out and grinds between those delicious ass cheeks. Lube drips from Deku's stretched hole, and Katsuki knows he shouldn't, he /shouldn't/. But fuck... it looks so inviting, and before Katsuki can full comprehend what he's doing, he pushes the tip +

of his wide, girthy cock into Deku's ready, slick hole. And fuck. Fuuuck. It's like nothing he's ever experienced before. Deku takes him like a fucking pro, rolling backwards in his sleep and whining softly. Katsuki kisses at his neck and plays with his nipples under his hiked +

up shirt as he slides in fully, sheathing his cock completely in Deku's wet heat. He hates and loves the fact that Deku's fucked himself so many times today: he hates the fact that he's so easy to slide into, because if he wasn't prepped, Katsuki would've left it, but he /loves/+

how simple it is to fuck in and out of his tight hole. Which is exactly what he does, groaning softly as Deku's fat ass jiggles around his cock. Deku's making quiet little "ah ah ah" sounds that drive Katsuki wild, and he has to bite his lip to stay quiet as he speeds up, +

driving into Deku's wet hole deeper and harder as he uses the idol like his own personal sex toy. Deku whimpers in his sleep as Katsuki wraps a hand around to stroke his pathetically hard cock, lining the motions up with the incessant thrust of his hips as he fucks Deku, /hard/.+

Katsuki rolls over onto his front, trapping the tiny man underneath him as he changes his angle to fuck Deku harder and faster. It's a miracle Deku hasn't woken up as Katsuki pounds that fat ass into the mattress, chasing his own release.
"Yesss, Kacchan, harder, I-I'm so +

clooose," Deku moans loudly. Katsuki freezes, earning a bratty whine from the man underneath him.
"Y-You're awake?" Katsuki whispers hoarsely. "H-How long for? F-Fuck, Deku, I'm sorry, I can explain-"
"And you can also /make me cum already/," Deku huffs bossily, thrusting his +

big ass back against Katsuki's thick cock and making him groan. How does Deku take him so damn /well/!? "I've been awake since you grabbed my ass, I wanted to see what you'd do. So if you're gonna fuck me, Kacchan, /fuck me/."
Katsuki leans down to press reverent kisses against +

Deku's back as he starts to move again, not holding back anymore. Deku cries out as Katsuki ploughs into him, hard and fast and /deep/, dirty nothings spilling from his mouth as Katsuki fucks him into the mattress.
"F-Fuck, Deku, c-can I..." Katsuki manages to groan out. +

"You w-weren't a-ahhh-asking for my-ohhh, ohhh right there, ohhh-p-permission before, just /d-do it/!" Deku wails, clutching at the pillows.
Katsuki spreads his legs further, growling out, "Fuck, baby, gonna cum so hard in you," as he picks up the pace more and more until Deku +

is /screaming/, crying out Katsuki's name beautifully as Katsuki curls over him, groaning, "Deku, Deku, Deku!" and spilling deep in his already-sloppy ass. Deku's eyes roll back, tongue lolling out in the perfect ahegao as he cums too, dripping all over the sheets. Katsuki pulls+

out, admiring the way his cum leaks from Deku's tight hole and drips between his soft, thick thighs. Deku takes the opportunity to turn around, cradling Katsuki's face in his hands as he says, "Next time you wanna fuck, Kacchan, tell me. I wanna be awake for the whole thing, +

without having to constantly tease you into fucking me, okay?"
Katsuki learns there and then that the man who becomes his boyfriend is a sneaky little sex demon.
***
("I'm quite sleepy" turns into "I wanna fuck," and if they're honest, they like it better that way.)
END.

Tweet limit arrived at the worst possible time so I said fuck you and didn't acknowledge it, HA. Thank you so much for supporting me, Kuma (@/lapin_koi), I'm super grateful If the rest of y'all enjoyed and wanna support too, please consider donating! https://ko-fi.com/lemonaestheticc 

Ko-Fi x Kinktober: Donate 1 Ko-Fi to choose which kink I use on any day, or whether I use them all!! Here's a masterlist with all the kinks, donations so far, my previous kinktober threads, and a link to my Discord server bc I keep forgetting to link it
http://tinyurl.com/y9mb6bol 

A preview for tomorrow!!! https://twitter.com/lemonaestheticc/status/1314605510709121024?s=20