Kaji Ren Smut - Tumblr Posts

mine.

featuring: Kaji Ren x f!reader

contains: possessive!Ren, established relationship, doggy, creampie, marking, spanking, dirty talk

note: all characters are aged up to 21+!

MDNI | 18+ content

word count: 1.2k

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You didn’t think Kaji Ren would be a jealous boyfriend. After all, you two had been friends for years before you got together and he’d never shown any indication that he was jealous of your previous boyfriends - despite admitting he had liked you basically the whole time you’ve known each other.

So you don’t think anything of it when a guy from your college class approaches you one day. You’re in a coffee shop on campus, studying for an assignment while Kaji sits opposite you, headphones on as he plays with his phone. He likes to take you out on proper dates but most of the time you spend together is like this – companionable silence, doing separate activities together.

You don’t look up until a shadow appears over you, breaking you out of your studious fervour.

“Hey, y/n.”

You vaguely recognise him – Ken or Kai maybe? – but you’re not sure why he’s approaching you. Kaji doesn’t look like he’s paying attention, his ankle resting on his knee as he sits slumped back in his chair, lollipop in mouth.

“Hi,” you say without mentioning his name which you’re still wracking your brain to remember. “What’s up?”

“Sorry to interrupt.” His smile is friendly but you can see the nerves behind it. “Mind if I buy you a coffee?”

Ooooh.

Understanding dawns on you. Your eyes flick over to Kaji but he’s still looking at his phone as his thumb scrolls. You don’t know if he even heard over his music.

“I’m flattered, thank you, but I have a boyfriend.” You give him an apologetic smile.

“Ah.” Your classmate’s cheeks are tinted red but he holds his hands up. “Fair. Sorry, I didn’t realise.”

As he walks away, you glance at Kaji again. When he doesn’t look back, you shrug to yourself and go back to studying. It’s only when you go back to your shared living space later that Kaji says something. Or rather, does something.

You walk into the kitchen, about to check the fridge for snacks when you feel his hand on your hip, stopping you still. Kaji brushes the hair from your neck before planting a soft kiss there. You sigh and lean back against him, feeling his solid chest.

“Mmm, that feels nice, Ren,” you close your eyes, reaching behind your to card your fingers through his hair.

Kaji doesn’t say anything but his grip gets tighter on your hip, pulling your ass flush to him and his kisses get rougher. You feel his teeth nip at your neck before soothing it with his lips. His free hand tangles in your hair, pulling your head to the side to expose your neck further to him.

You’re already putty in his hands, sighing softly as he sucks bruising kisses against your skin.

“Marks have faded,” Kaji eventually mumbles, his lips never leaving your neck. “Need to give you more.”

Your eyes flutter open.

“Is this about that guy earlier?”

Kaji doesn’t say anything but makes an irritated noise so you can guess that's a yes.

The hand he had on your hip moves to the front of you, sliding under your dress to palm your clothed pussy. His rough kisses on your neck has got you wet already. The feel of you sopping for him makes Kaji’s cock strain against his jeans.

“Mine,” he says, his fingers snaking under your panties to play with your needy pussy.

You gasp, back curving as he strokes your clit, using your arousal to trace slippery circles around your bud. Kaji wraps his other hand around your throat, holding you to him as his fingers continue to nudge you closer to the edge.

“You understand me?” Kaji growls in your ear.

“Yours, Ren,” you whimper, your legs starting to feel weak.

To your dismay, he pulls his fingers away. The hand he has around your throat moves to the back of your neck as he pushes you down, bending you over the kitchen counter. You’re pinned in place by his strong grip but you hear him unbutton his jeans behind you.

Kaji hooks his fingers under your panties, pulling them to the side as he grabs the flesh of your ass. The sight of your bent over before him, your puffy lips glistening with your arousal makes all the blood rush to his cock. Kaji strokes himself a few times, eyes glued to your cunt, before nudging his fat mushroom tip past your lips. He presses up against your hole, feeling the tight ring of resistance.

“Who’s pussy is this?” Kaji’s voice is thick with need but he wants to hear you say it first.

“Yours, Ren.” You splay your hands on the counter, preparing yourself for what’s coming. “All of me is yours.”

A smirk plays on Kaji’s lips as he thinks of the guy from the coffee shop, how badly he’d want to be in Kaji’s position right now. But he can’t have you. You’re his.

“Mine,” he growls before slamming himself inside you.

You cry out at the sudden violation, your pussy stretched to accommodate him. Kaji keeps one hand on the back of your neck, holding you in place as he draws back. He loves the way your pussy grips his cock, pulling him back every time he withdraws, your needy cunt desperate to be full of him.

You whine as he continues to pound away at you, the thick veins of his cock dragging against your nerves, his fat tip reaching deep inside you. Not content with only marking your neck, Kaji takes his hand from your neck so he can land a hard slap against your ass cheek. You yelp at the sudden sting, your skin on fire, but your pussy responds, clenching around him.

“Fuck, don’t squeeze me so tight,” Kaji grunts. “Can’t fucking think straight.”

He slaps your ass again, leaving a bright red handprint that’s sure to bruise. Pleased, Kaji returns his hand to your neck, squeezing the sides of your throat as he fucks your harder.

His cock rubs against the sensitive spot inside you at a relentless pace, making your mouth fall open. You’re sprinting headfirst into an orgasm and Kaji can feel it, the way your plush walls hold him like a vice grip.

“Ren-!” you squeal, legs buckling as pleasure consumes you, rippling from your pussy through to the tips of your toes.

The feel of you creaming on his cock always encourages Kaji’s own orgasm. His eyes are glued on where his girth slides in and out of you, shiny with your combined juices. He watches the way your ass jiggles with each thrust, your lips tight around his cock.

“Fuck…” He pistons himself in and out of you as his own high overtakes him, knowing he gets to mark you on the inside as well. “Fuck!”

Kaji shoots thick ropes of cum deep inside you, coating your walls with his sticky seed. His cock twitches as he releases everything he has, not wanting to waste a drop even as it spills from your pussy.

Kaji pulls his softening cock free and tugs your panties back into place, enjoying the way his cum soaks through the fabric. You straighten to standing, Kaji letting you lean on him with your shaky legs. You catch him smirking at the purple bruises on your neck and touch them tenderly.

“Are they obvious?” you ask, the flesh still sore.

“Yeah,” Kaji says with satisfaction. “Definitely.”

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“THAT WASN’T MY NAME.”

WINDBREAKER BOYS + SAYING THE WRONG NAME. ft. hayato suo, kaji ren, nirei akihiko, & sakura haruka x f!reader

content: explicit smut (18+), fellatio, overstim, choking, teasing, (kind of) brat taming, multiple rounds, mentions of creampies, usage of pet names, individual tags below.

mdni - 1.5K wc. filled request!

HAYATO SUO.

very mild brat taming, usage of pet names

“oh? that’s not like you, love.”

his gaze remains gentle, eyes intent on watching the way your cunt flutters so desperately around his length, your legs wrapped tightly around his hips to try and pull him deeper inside— but he doesn’t let you, of course.

suo has always been a tease. he likes to get you pent up like this, get you needy and frustrated until you’re clutching onto him and whining for him to stop and give you more, but he admits that he may have gone just a little bit too far today.

he’s brought you to the point where you’re moaning his friend’s name just to pull a reaction from him, and he knows painfully well that it’s your last resort at getting under his skin— because he knows your thought processes and tricks like the back of his hand.

so the fact that it actually worked is just that much more infuriating to him.

“thinking about someone else? how rude of you.”

the way your walls tighten around his length in response to his change in tone doesn’t go unnoticed by him, and you really couldn’t have been more obvious if you tried.

“ohh, i see,” he continues, pushing himself just an inch or two deeper- just enough to draw a lewd moan from you, “you just enjoy being put in your place, hmm? is that it?”

the way your eyes widen at such a suggestion is almost endearing, your head quickly shaking back and forth as you protest, blurting out a jumbled mix of “of course not” and “you’re just hot when you’re mad..”

absolutely anyone could read you like this, especially with the way you’re peering up at him so curiously through your lashes to gauge each and every reaction he might make. he already knows without you telling him that there’s nothing in that brain of yours besides your fantasy of him pounding into you at his full strength, maybe even pinning your wrists above your head while he’s at it.

“you really should have just asked me, love,” suo’s fingers wrap gently around your neck, a part of him content with the way you perk up in anticipation from something as little as that.

“..because i didn’t like that act of yours very much.”

he’s rutting into you once again before you even have time to think, angling himself to slam deep inside as your arms scramble to wrap around his shoulders, pulling him closer as you whine. you accidentally pull him deeper inside you like this, and suo fails to mask the way his face contorts at the sudden tightness.

“o-oh?” his voice holds an unfamiliar breathlessness to it, “i didn’t know you were so needy today.”

“ah— because it’s so deep!” you stammer, loud moans going straight through his ear. his unrelenting pace is so foreign to you, and you don’t know how he’s still so precise, aiming to pummel the exact spot that has you seeing stars the fastest- and you’re not sure if you can handle this much.

you let go of his shoulders, arms coming to shield your eyes as they roll back into your skull, your back arching in a futile attempt to escape the overstimulation.

“oh— no,” suo’s voice cuts through the air, “we won’t do that.”

he’s pinning your hands far above your head in one swift movement, frame towering over yours as he rolls his hips into you harder. “s-suo, it’s too much!” your words come out slurred, expression contorting with how quickly you’re approaching your high.

“this is just the beginning love. we’re gonna play out all those fantasies you’ve had tonight,” his grip around your wrists tighten slightly, “so no more running from it. okay?”

KAJI REN.

neck kisses, choking (barely), usage of pet names, jealousy?

“oh,” you turn your head to look up at your boyfriend when his thrusts come to a complete halt at the realization of what you just said, “i meant to say kaji.”

there’s an uncharacteristically long silence from your boyfriend, the only sound in the room being your giggle as you try and wiggle your ass against his hips to rile him up even more. “sorry,” your voice shifts to a stifled laugh, “don’t worry though, i was just kiddin-ah!”

you’re pulled up with ease when his hand wraps around your neck, guiding you back until you’re pressed flush against his strong chest, your head falling back to rest on his shoulder.

“think you’re funny, huh?” his thumb comes to roughly tilt your chin to the side, letting him grunt into the skin of your neck.

the new angle has you trembling, eyes widening with how much bigger he feels inside you like this. he’s stretching you out so much more than before, his fat tip nestled uncomfortably against your cervix as he holds you in place.

“real funny, princess,” you hear his click his tongue in annoyance.

the feeling of his breath fanning against your skin has your breath hitching in your throat moments after, his lips just barely ghosting over the sensitive skin of your neck. “got me reall good,” he repeats slowly, lips tantalizingly close to the smooth skin, “but i don’t wanna hear that guy’s name leaving your mouth again.”

“prank or not.”

it’s not like kaji isn’t aware of how silly he looks right now, jealous and angry over a minor prank like this one, but he can’t help it, not with the way the name rolled off your tongue in such a sickeningly sweet way.

he wants to hear you moan his name instead. wants to hear it again and again until he’s no longer green with jealousy.

a shiver of anticipation races through you when he starts trailing wet and sloppy kisses along your skin, each touch sending a wave of pleasure coursing straight into your core. he’s rough with it, a stark contrast to the way his finger is gently circling at your clit, just the way you like it.

“a-ah,” you moan when he starts sucking at the skin, inhaling sharply when he catches a faint whiff of your perfume. “k-kaji, that feels good.”

he almost groans at the sound of his name again. “again,” he growls, lips returning to give you another mark on the side of your neck, “say that again.”

you were his- his only, and he was gonna make sure everybody knew that by the end of tonight.

NIREI AKIHIKO.

mention of creampies

“s-sorry,” nirei mumbles, “that was a lot, huh?”

he watches with a heavy blush across his cheeks when your fingers come to collect the cum that he’s shot directly onto your tits, his cock throbbing when you slowly drag your tongue up your hand.

“it’s okay, sakura. oh— wrong name.”

he blinks a couple times before his heart sinks into his stomach. his first thought was that he just heard you wrong, but there was just no way that was possible.

“..sakura?”

his expression shifts from confusion to worry, then to a frustrated pout when you start laughing. “i’m just kidding!” you giggle, laugh trailing off to a concerned hum when his eyebrows stay deeply furrowed.

“oh? was that too mean, nirei?”

you watch him closely when his hands come to pull you by the waist, your own arms coming to wrap around him, but he doesn’t let you. “you know,” he starts, and he’s grabbing both of your wrists before pinning you beneath him, “i change my mind.”

your tits bounce a bit when your back hits the mattress, your chest still covered in his cum, and he wishes time could stop for a brief second so he could stare and admire you like this for just a little longer without looking like a total creep. it doesn’t help when you’re staring up at him like that too, your mouth still parted to pant lightly from the previous round.

you’re fucked out in the cutest way, and it’s enough to get him hard again.

“…about?” your words trail off with a hint of uncertainty under them.

“‘m not sorry,” he whispers, groaning when his overstimulated cock slaps against your folds. “not sorry at all anymore. gotta shoot it inside next, or this’ll keep bothering me.”

SAKURA HARUKA.

fellatio, teasing, his dick is sensitive <3

“h-huh..?”

your eyes flicker to the way the muscles of his abs flex when he abruptly sits up, deep blush across his cheeks as he watches you bob your head up and down his length in complete and utter disbelief.

“sorryy,” your voice is a soft and teasing whisper, and you give him that sugary-sweet smile that always kills him in an instant, “wrong name.”

an awfully casual mistake to make, he thinks.

sakura is absolutely dumbfounded, forcing himself to try and glare despite the way you have him breathless and trembling underneath your touch, but you’re resuming your movements only a second later, your tongue dragging up his length as if you didn’t just call him someone else’s fucking name just now.

“h-hey,” he can barely choke out a word with how good your lips feel around his dick, and he’s trying to reach forward and pull you off of him, struggling to blurt out a “s-stop that!”

but you’re suddenly taking him deeper, letting him in your throat until your nose pokes at his skin, and he groans loudly at the feeling of your throat around him.

“ah— shit..” his mouth falls open when you moan into him, vibrations of your voice forcing his hips to jerk up against you.

“you— you just…” he’s trying, trying so hard to get a word out, but you’re such a fucking tease. your head bobs up and down a little faster, tongue flattening to glide perfectly around his thickness, and the way his quads start trembling doesn’t go unnoticed by you.

he’s getting close.

the lewd ‘pop!’ your mouth makes when you let him go only deepens the furious blush across his cheeks, and he wishes he didn’t make the mistake of looking down and catching a glimpse of you rubbing his pre-cum off your bottom lip with your thumb.

“i was just kidding,” you smile when you notice his attention is back on you, even if it’s only for a brief moment before he’s tearing his gaze away, “but the face you made was real funny.”

his expression switches to an angry scowl— as angry as he could possibly look after you’ve reduced him to nothing but a panting, flustered mess beneath you. he’s gasping loudly as soon as your hands start to run up and down his thighs, fingertips pressing into him to get a better feel for his muscles.

it’s enough to kill him as is, but as soon as you start peppering his dick with kisses, he feels his patience crumble to nothing.

“enough,” his voice is just above a shaky growl, nails digging deeply into the armrests besides him, “needa be inside you— f-fuck. right now.”