#MISS KIREI IM GIVING IT ALL FOR THIS STEP CEST WAR MONDAYS U KILLING ME

[cherrykamado]

*enters with a mic* In retaliation to Stepcest Monday, I come bearing Zeni-nii.

Ima just let that marinate in your brain for a while (I.e. Don't thing about a highly possessive Zeni-nii thunderclapping your cheeks cause he noticed how Inosuke was staring at you for longer than he liked and you laughing a bit too hard at his jokes. Zeni-nii has to show his precious little step sister who she really belongs to to.) *Drops mic and exits*

@cyancherub someone here mentioned thunder clapping cheeks hehe <3

warnings: aged up characters, stepcest, fat cock zeni, a biiiiit (well not a bit hehe) of electrostim, possessiveness.

if there is something that characterizes zenitsu, that is being a ball full of emotions. right now? jealousy, sadness, anger, frustration.

his little step-sister was with that inosuke boar, who didn't know how to keep it down. the worst part? you playing along with his game.

don't fuck with him!

is that what you're into? loud, brute guys?

zenitsu can also be like him. because he'll be whatever you want him to be, if that means you'll look at him the same way he looks at you.

you laugh again at one of inosuke's shenanigans, snapping at tanjiro and head-butting his back. poor tanjiro falls, and starts arguing with inosuke, and that draws nothing but giggles from you.

"i-inosuke! l-leave tanjiro alone already!" you scold playfully, between giggles.

inosuke turns to you, a cocky smirk appears on his face. "ya like that, princess?"

"pfft- no!" you snort, but truth to be told, you found it amusing.

his sight runs up and down, drinking in each of your curves, well hugged by your gear, it fits you like a glove. He runs his tongue over his lips, emerald orbs gleaming with lust.

and that's where zenitsu snaps. his teeth gritted together, dull amber eyes glare at the boar brute guy, and before any other warning, he takes your wrist.

"can i take talk to you for a second." he doesn't ask, he demands. his voice is so deep and dangerous.

"oi, monitsu! the hell are ya doin' huh?!" he snarls.

you blink in confusion, oblivious to his anger. "zeni-nii? what's wrong?" you ask innocently.

but before you, tanjiro or inosuke can process, he's taking you off the grounds. in the butterfly mansion, where your quarters are, where no one would bother you.

it's no long until he can take it out of you, as you are with your back on your mattress, shirt undone with your tits spilling free, jiggling with every time he's pounding into you.

he's so angry, so mad. he's nothing like the zeni-nii you know. this zeni-nii is wild, he's serious; just as if it was his alter ego, the one who emerges when he falls asleep.

but you can't process anything, the only thought crossing your mind is how well his cock beats up your walls, his head punching your cervix, his balls slapping against your cheeks.

you want him to go slower, yet you want him to go deeper; the drool escapes the corner of your lip, and you try to look at your step bro through the glossy barrier of your tears.

"y-you're mine, y/n," he says, "only mine, mine, mine."

you can't even utter a proper word at the moment. but zeni-nii can be quite impatient sometimes and, mad as he was, he couldn't just let it slip. what if he lost you? what if you left with inosuke and forgot about him?

he'll do anything to keep you with him.

"are you mine, y/n?" he growls, snapping his hips against your cheeks, his tightening fat balls clapping against your skin.

his fingers pinch your clit, and it's not until the sound of a electric zap! rang in your ears and the foreign sensation made you scream, walls clamping and pulsating around his cock; drooling cunt making a mess of his cock and the sheets.

"f-fuck!" you sob, arching your back.

"i. —thrust— said.—thrust.—are you —thrust— mine?"

at the lack of answer, he did it again, this time it was stronger.

"Y-Yes!!" you screamed and, pleased with your answer, he couldn't control the next wave of electricity in your pulsating clit, the one that would make you cum as hard as you've never cum ever in your life.

"I-I'm zeni-nii's only!!"