KINKTOBER DAY 10: Ass worship (also inc. facesitting/ rimming) (comm from @/kacchnyan)
cw: sacrilege (?)
Izuku's the pretty little religious virgin that lives on Katsuki's street, and Katsuki's the neighbourhood troublemaker who's determined to defile him. He wants a piece +

of that ass, and he's gonna get it. Fuck, is it even legal for an innocent devotee to have such a sinful figure? Deku, as he's been calling him, tiny, but his ass is /huge/. Magnificent. A work of art. And if Katsuki's ever gonna /worship/ something, Deku's ass is at the top of +

his list (he told Deku that, and Deku looked at him with a mixture of disgust and pity, responding with a simple, "May God forgive you." Cheeky little fucker.). Deku walks by his house every day, and every day, Katsuki comes up with a new way to tempt him. He'd avoid Katsuki's +

house if not for the fact that it's right next to the church. For Katsuki, the daily teasing makes up for the sound of the obnoxiously loud bells and choir (unless it's a Sunday, when he can Deku's gorgeous soprano). He adores making Deku blush, loves imagining the way Deku's +

body must look under all that humble, covering fabric. Katsuki didn't even /know/ just how great Deku's figure was until a few months ago, when Deku had accidentally ripped the bottom hem of his attire by tripping over the too-long robes, and the priest, Toshinori, had lent him +

the only spare he had: one three sizes too small. Fuck, that day is forever embedded into his memory for whenever he wants to jerk off. Deku's perky nipples were showing through his robes, and his ass... Fuck, each cheek alone was bigger than his /head/, stretching the fabric +

obscenely. Deku's face had been flushed strawberry red as he waddled home, the clothes too constricting to move properly (the way his ass had jiggled... just thinking about it has Katsuki instantly hard).
It's Sunday today, and Katsuki has been chilling in his front garden the +

whole day in nothing but a pair of swimming shorts. He's tanning, he says, but that doesn't stop Deku from blushing and crossing himself when he sees Katsuki on his way to church. Katsuki doesn't go to church (the old hag used to force him, but she's given up, especically +

considering that Katsuki does weekly community service with the church. She doesn't know that the only reason Katsuki does it is to see Deku squirm, because of course goody-two-shoes Deku would be doing community service). Sometimes he thinks he should to torment Deku, but he +

respects Toshinori Yagi, the local priest, so gives Deku that little safe space. Still, he can see Deku through the window, and hear him singing. Evidently Deku can see Katsuki too, because when they're in silent prayer, Toshinori peeks out of the church and calls Katsuki over. +

"Young Bakugou," he whispers. "I don't want to impede on your free time, but would you mind putting a shirt on until church is over? Young Midoriya is quite disturbed."
Katsuki catches Deku's gaze through the window and grins. Deku quickly looks away with the usual red blush on +

his face.
"Sure," Katsuki shrugs. "Only until the sermon is over."
And he means it. As soon as Deku walks out after shirt, Katsuki slides his shirt off in one smooth move and calls out a greeting to the green-haired nerd. Deku always stays back after church, so no-one's there to+

scold him as he says:
"You've got a beautiful voice, Deku, but I know another way of making you /sing/."
"Kacchan!" Deku gasps, affronted. He clasps his cross and stares pointedly at Katsuki's /face/ and nowhere else as he talks, but Katsuki sees the way his eyes flit down to +

Katsuki's bare torso now and then. "For your sake, I'll ignore the innuendo behind those words."
"So sweet to me, Deku," Katsuki croons. "Let me repay you, angel. I've been told I make delicious food. Come inside and I'll /feed/ you."
"I've said both of these things before," +

Deku sighs, "but I absolutely will not come inside, I doubt your intentions, and to call a human an angel is sacrilege. Goodbye, Kacchan, I have better things to do."
"Shame, you're the top thing on my to-do list," Katsuki winks as Deku starts to walk again. "Or would it be more+

accurate to say the /bottom/?"
"Goodbye!" Deku huffs, crossing his road to his own house. Katsuki gazes after him, smiling. Deku hasn't been to Katsuki's house since Katsuki started with all the sexual teasing. It's like an unwritten pact between them: if Deku enters Katsuki's +

house, it's like he's giving in to Katsuki's temptations. And it's going to take a while longer before Katsuki gets through to him.
At least, that's what Katsuki thinks, until the old hag goes and blesses him with the perfect opportunity.
"Say that again?" Katsuki breathes, +

hardly able to believe his luck.
"Are you deaf!?" his mother scolds, before placing a hand on her hip and sighing. "Inko and I are going to the religious retreat we visit every half a decade, and Inko doesn't feel comfortable leaving her son at home alone, so he'll be under your+

care for the long weekend. He'll be sharing a room with you, and you'll be making his meals. If he wants to go anywhere but church, you go with him. Got it, or do I have to repeat it to your dumb ass?"
"Oh no, I've got it," Katsuki murmurs. "I've got it perfectly."
***
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(Tweet limit? No. Me taking a break because it's ten to midnight and I wanna finish this thread today (?) without falling asleep? Correct, I'm gonna have some caffeine and chill for a while before I continue... I hope y'all are enjoying it so far, sorry for any errors!)

When Katsuki opens the door, Deku is pouting, holding his overnight bag with both hands.
"Just to reiterate," Deku mumbles as he squeezes past Katsuki (who hasn't moved despite saying "come in" and takes the full opportunity to brush up against the small nerd), "this doesn't +

count. I didn't /choose/ to be here."
"Oh, trust me angel, that's not what you'll be saying by the time you leave," Katsuki chuckles, locking the door behind him. Deku stops to shoot him a glare, and Katsuki would be lying if he said it didn't turn him on a little.
***
+

Katsuki does everything he can to help Deku settle into his house. And by that he means he hides his clothes, sits way too close to Deku wherever they are, and drops innuendos into every other sentence. Oh, and he walks around the house in his boxers. He's gotta hand it to Deku +

though, the nerd has some impressive self-restraint. Even when Deku is wearing clothes too tight for him (it was either Katsuki's old clothes or his current ones, and considering one of Katsuki's shirts is pretty much a dress on Deku, Deku reluctantly went for the smaller +

option, so he's in clothes that squeeze around his hips, accentuate his hard nipples, and barely cover his ass), with Katsuki in nothing but boxers cuddled up against him and whispering sexually suggestive things in his ears, Deku tuts and says, "Kacchan, I'm trying to watch the+

show, do you mind? Perhaps you should pick up a Bible. It'll do you a world of good."
Katsuki just chuckles at that and gets up to prepare dinner. When it's ready, he sets the table and calls Deku, who comes after a moment. His eyes widen as he notices the delicious looking and +

smelling food.
"Kacchan, you should've let me help set the table!" Deku exclaims, going to sit down. "Oh, this looks lovely, thank you."
"Wait!" Katsuki says quickly, grabbing a dry cloth before Deku can sit down. "Let me wipe your seat for you."
"O-Oh, sure," Deku says, +

pleasantly surprised. He moves aside so that Katsuki can slide the chair open-
Before he flashes a sex, lopsided grin at Deku and wipes the cloth over his face. Deku is confused for a split second, but when he realises what Katsuki's getting at, he splutters:
"That is /it/! I've+

had just about enough of your sinful behaviour! I am going to your room and locking the door for privacy. I'll open it up in an hour when I have calmed down. Honestly, Kacchan, spend that time thinking about what God means to you!"
He storms off, and Katsuki laughs to himself. +

That was definitely one of his best moves yet. His smile fades into a frown as he notices Deku's untouched food. Right. This weekend is him proving something to himself: whether or not Deku is attracted to him. If Deku can hold out for this weekend, Katsuki might give up. He's +

been borderline harassing the innocent nerd on the hunch that Deku wants him as much as Katsuki does. He eats his dinner in silence, contemplating, before finishing up and washing his dishes. He reheats Deku's food and carries it up to his room, pausing outside to find the right+

key. His mother had left him all the keys to the house before she'd left, and Katsuki's sure as fuck grateful for it. The door lock clicks easily, and Katsuki opens the door-
-and drops the plate. It's a paper plate, and none of the food has spilled on Katsuki himself, which is +

quite lucky, but Katsuki couldn't care /less/ right now.
Because Deku-
Because Deku is-
Deku's naked on the bed, face buried in one of Katsuki's shirts, legs spread with three fingers in his ass. At least they /were/ in his ass until Katsuki drops the plate, when Deku whips his +

head around, squeaks and hurriedly covers himself with the shirt.
"K-K-Kacchan, h-how did you-"
"I've got a master key, Deku," Katsuki says, waving it about. "Thought I'd bring you some dinner but obviously you're the one serving. Please, keep going, I'm feeling quite /hungry/."+

"N-No, i-it's not w-what it l-looks like," Deku chokes out. Katsuki's having none of it. He strides forward, crawling on to the bed and towering over Deku, who shrinks into himself.
"What it /looks/ like?" Katsuki muses, voice low and husky. "It looks like innocent little virgin+

Deku's a filthy little slut who fucks himself with his fingers to the scent of my shirts. It looks like Deku's desperate for me to wreck his wet hole, but can't even admit it to me. Am I wrong?"
"I-It's not fair," Deku sniffles. "Y-You /constantly/ t-tease me w-with your perfect+

b-body and f-face and v-voice and /everything/ and then expect me not to do anything! I-I can't t-take it, it's too /much/!"
"Aww, poor little closeted slut can't help but sin thinking of me, hmm?" Katsuki teases, thoroughly enjoying the way his fantasies have come to life in +

the best way possible.
"I-I've b-been to con-confession," Deku gulps, averting his gaze. Suddenly, being asked to put his shirt back on by Toshinori makes a lot more sense.
"Yeah? What was the penance?"
"I-I wasn't allowed t-to g-get off, a-and I had t-to do e-extra prayer." +

"Hmm, angel," Katsuki sighs. "You're not doing anything wrong by pleasuring yourself. Don't make that face at me, you know I'm right. You're not hurting anyone, you're still chaste. Now, me eating out your ass, on the other hand..."
"W-What do you mean, ea-eat-doing that!?" +

Izuku exclaims. "N-None of that is happening! No way!"
"Oh, angel, it's too late for that," Katsuki chuckles, grabbing Deku's hips and whirling them around so that Deku is straddled on top of Katsuki. "You can't just show off like that and then expect nothing to happen. You're +

gonna sit that /heavenly/ ass on my face, and I'm gonna /worship/ it."
"K-Kacchan, I-I-" Deku stutters, looking down at him with his hands placed on Katsuki's chest for balance. "E-Even if I- um- m-my ass i-is too big! I-I'll-"
Katsuki slaps the side of his bare ass lightly +

and squeezes as he purrs:
"I can handle it, angel. Come sit that perfect ass on me, Deku."
Deku bites his lip, eyes half-lidding in lust as he nods. He swivels so that his ass is facing Katsuki, hands still braced on Katsuki's strong chest. Katsuki holds his breath as Deku +

lowers his ass onto his face. And when Katsuki had said each cheek was bigger than his face, he was /right/. Altogether, Deku's deliciously juicy ass is about three times the size of his face, and heavy as /fuck/, but Katsuki's not complaining, not at all. It's /hot/, the way +

Deku's big, fat ass pushes against him. It spills through Katsuki's fingers as he sinks his hands into it and massages, spreading and squishing Deku's thick ass cheeks. Deku gasps softly, and Katsuki can't help but press kisses against Deku's ass. He loves it, loves how big and +

round and smooth it is. He spreads Deku's cheeks wider and kisses his tight, puckered hole. It's wet already, but Katsuki's gonna make it so much /wetter/. Deku's gasps are turning into muffled moans as Katsuki licks stripes up and down between Deku's ass cheeks. And then, when +

(goddamnit I'm too tired to fight the tweet limit, imma continue writing)

Katsuki finally slides his tongue into Deku's twitching hole, Deku moans properly, voice resonating around the room. Katsuki grins and slaps his ass as he starts to bob his head, spreading Deku's cheeks even wider to get in deeper. Deku's legs mimic the movement, spreading wide +

as Deku whimpers and moans. Katsuki smacks and massages his big, fat ass, jiggling it in his hands as he moves in and out. /Fuck/, he loves the heavy weight against his ass. He's always had a thing for big booties, and Deku's definitely got the best ass he's ever had the delight+

of seeing. It turns him on so damn much, and he knows that if it keeps going like this, he'll cum in his boxers without so much as touching his dick. That being said, he brings one hand down to jerk himself off as he rims Deku's ass. Licking, sucking, kissing his hole: Katsuki +

does everything he can to keep pulling those harmonious moans out from Deku's mouth. And fuck, Deku's /loud/. He moans like a slut, sounds slipping helplessly from his lips.
And then he whimpers an apology, crying, "K-Kacchan, I-I can't /help myself/!" before his powerful +

thighs start moving back and forth, ass shaking and jiggling, even heavier against Katsuki's face as Deku fucking /rides/ him. Katsuki groans against his hole and smacks his rippling ass, syncing his tongue movements to him stroking his dick. Deku's thick thighs are trembling as+

he rides Katsuki's face faster, bouncing and whining like a horny bunny and fucking himself on Katsuki's tongue. Katsuki's stroking his cock almost aggressively now, trying to match the relentlessly fast pace Deku rides him at. He smacks Deku's ass again and again, revelling in +

just how fucking /big/ and /fat/ and /juicy/ it is, but also in the way Deku's started to babble filthy nothings, begging Katsuki to make him cum.
"Ohhh, ohhh yeah, hn-hn-hnnn-ohhhh /Kacchan/, I-I'm g-gonna-ohhhhh /fuck/!" Deku moans like a pornstar, shaking his ass against +

Katsuki's face as he jerks forwards and orgasms, cum dripping down Katsuki's abs. And it's not even the fact that Deku is practically /twerking/ on his face that sends Katsuki over the edge. No, it's the /swearword/ from Deku's innocent lips that has Katsuki cumming all over +

himself and Deku.
"Angelll," Katsuki croons as Deku carefully lifts his ass off him, turning around to check if he's okay with beautiful concern in his eyes. Katsuki cups Deku's heavenly face in his hands and pulls him in for a kiss.
"Kacchan!" Deku splutters, wiping his mouth, +

"you taste like ass, that's disgusting!"
"Mm, you love it, really," Katsuki grins. Deku rolls his eyes, but he can't surpress his smile. Katsuki's captivated. Sometimes, just sometimes, he looks at Deku and wonders if divinity really does exist.
***
(Izuku doesn't stop going to +

church, obviously, and Katsuki doesn't stop teasing him on his way there. The only difference is that on the way /back/, Izuku sneaks into his boyfriend's house for a filthy session of pleasure. And Katsuki worships him the entire time.)
END.

It's 2:21a.m., oh my god If the quality is lower than usual, you know why! If you wanna support my late night determination to finish this thread, please consider donating check Ko-Fi for the special Kinktober deal, I'm too tired to talk about it... http://ko-fi.com/lemonaestheticc 

(also, massive shoutout to @/kacchnyan for donating a Ko-Fi to choose ass worship for this thread, thank them for this wonderful kink!!)