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© 2026 Fanprose

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    Cover image
    PublishedApr 24, 2026
    UpdatedJun 7, 2026
    LengthOne Shot
    Wordcount3,352
    Views156
    Rating
    Mature
    Genres
    SmutCrack
    Group
    IVE
    Pairings
    Female Idol(s) x Male Reader
    Idols
    Rei (IVE)
    Tags
    ComedyDing-DongSMooTh LiKe BUttErnever gonna gib u upanal
    Trigger warnings
    CringeWhimsicalNaoi Rei
    One Shot

    still brainrotten, but still cute

    Complete
    mascarponnyApr 24, 2026

    Rei is still...peculiar..., but your love for her is real and exceptional!

    15

    Author's note

    this is an unofficial sequel of @starconstruction Rei's work! enjoy~

    You take Rei to a cafe this Sunday afternoon, after a long discussion of where the two of you are supposed to go the day before. You suggested going to any cafe with a nice view to enjoy the sunset, while Rei—being Rei—of course insisted on an anime themed cafe located in the dead center of the city. You ultimately gave up.

    Accordingly, here you are, seated, with Rei to your side, drooling. In front of you are some dishes called “rabu-rabu omurice” and a ramen with a literal gun—probably a replica, or an airsoft, you’re not entirely sure—jammed in it. It takes your entire concentration to not question anything about it. Rei looks excited, that’s all that matters.

    “Woah! You see that? They go all out with the references! Where else can you get a perfect remake of that scene from Assassination Classroom? Nowhere! And this omurice! ... hm, I’m not sure where it’s from actually, way too generalized to be specific.”

    You scratch your head. “I mean, as long as it tastes good...”

    “Who cares about taste?! The most important thing is being cultured! Wa – ha – ha!”

    You smile at her, trying to be nice. Truth be told, you want to get out of this place as soon as possible.

    “My spidey sense tells me that you’re not pleased with all this. The matter, young padawan, what might it be?” Rei turns to you. She leans forward while placing one of her hands on her back, acting like an elderly.

    You almost snorted the ramen out of your nose hearing Rei suddenly talking like that. You understand this one. Not everyday she references something from the olden days.

    “You know Star Wars?”

    “Muri-muri-muri. Never watched it. It's way too old. There’s almost always a meme of it though, I just said what I’ve seen in those.”

    “Hm. We should see it together one day.”

    “Chotto matte! You’re not answering my question.” Rei sits straight back up. She’s leaning towards you. You can feel her self-proclaimed ‘anime tiddies’ pressing against your arm. Wait, is she not wearing any bra? Again?

    “I’m fine, Rei. Really.”

    Rei pouts. Her body retreats. You can see her breasts jiggle freely under that oversized Jujutsu Kaisen shirt. “Hngh. Souka. So you want to do this the hard way? Fine then,” her hands move up to tie her hair in a makeshift bun. She’s gritting her teeth while her hands are in her hair. The way she’s upset while messing around with her hair. Her neck showed itself bare. Her armpits peeked out. Her hardening nipples poked through the shirt. She looks so damn sexy like this.

    You know this move. “Rei, what are you doing? Rei-”

    Rei only smirks, condescendingly. You wanted to stand up and back away, but alas, your back is against the wall. Rei’s smirk widens.

    “Oh God,” you say as Rei goes down on you.

    The cafe is large enough for it to have some kind of a gap in between the tables, so normally people wouldn’t know what’s happening in each table. Problem is, the cafe is empty—save for the two of you. The rustling sound Rei makes while unbuckling you is definitely audible.

    Rei’s hands move swiftly. She’s a professional autist that’s for sure. “Hup, hup. There we go. I unsheathed The Sword of the Hero! Frieren must’ve been proud of me.”

    “Rei-!” you gasp in panic as soon as your dick leaves the confine of your boxer. You are already half hard since you notice Rei isn’t wearing any bra. Rei wastes no time sucking you off.

    “Ah-!” you squeal, but immediately cover it with both of your hands. The way Rei immediately swallows the entirety of your ‘sword’ is making you insane. You want to grab her hair and slow her down from how quickly she’s spinnin’ on it, but doing so means you have nothing to cover your mouth from grumbling. So you resign to just covering your mouth with one hand and grabbing Rei’s messy hair bun with the other.

    “Gahk – aghk – glug – hlgk – glhk – gahk”

    Rei deliberately makes that noise as she’s bobbing her head up and down. She knows that you’re afraid of getting caught. She also knows that the threat of it greatly arouses you, from how hard you’re getting. She feels great pleasure from both.

    Your crotch is wet. Rei’s drool flies everywhere around her mouth, including the seat. The workers here would’ve instantly noticed the trace of what you two are doing. You feel heat creeping up your spine. Your cock is throbbing. It hasn’t even been 5 minutes since Rei’s giving you the sloppy throaty, but you can’t hold it any longer.

    “Rei, I’m-”

    “Fwaah~” Rei suddenly stops her action. Her mouth is covered with drool. Her lipstick are all spread out and messy. She’s wiping her lips with the back of her hand before giving you a nasty grin.

    “What the fuck! I was close Rei!” You say, quietly. You still can’t risk being found out. That said, you’re unconsciously throwing your hips forward in the search of that never-coming pleasure.

    “Womp womp. Your fault for not being honest. Now you have to face the wrath of the Demon King!” Rei sticks out her tongue at you.

    Your cock is still throbbing. If this were to happen in your place then Rei would be on the floor, folded, with her pussy already flooded—with cum. But you’re in public. In this fuck ass anime cafe or some shit. You need to have some decorum. So you groaned, quietly, while tucking your rock hard penis back inside your pants—with great difficulties.

    Rei chuckles beside you. She goes back to eat her gun ramen as if she didn’t just abuse her own throat to take your entire length.

    Your eyes widen in surprise. There’s never a dull day with this girl. “Alright, alright, you got me Rei. I don’t really dig this place, hm? But it’s not that big of a bother for it to make me want to flee. And fucking hell my cock is painful right now, thank you for that,” you let out a big sigh as you end the sentence.

    Rei laughs a little bit louder. “Do you want to wager your luck to the gacha gods?”

    You look at her confused. “What?”

    “C’mon! You still have a 50/50! Granted, still far from the pity, but the chance is never zero! To top it all off, you can be a pure F2P and still win this.”

    “What?!” you say, even more confused.

    Rei stands up from her seat. She’s standing weird. Like she’s taking a stance, about to do something. Her feet are distancing away from each other as she leans back slightly. She shakes her head to let her shoulder-length hair hang freely again. Then she crosses her hands right under her chest—now wet with drools but not soaking.

    “KAKEGURUI MASHO!” she screams while giving you a very devilish smile. She’s giving you an ahegao right then and there. No way the staff didn’t notice this.

    You immediately jump forward to cover her mouth. “Ssssshhhhh!” you say before nervously looking around. You catch one of the employees looking at the two of you weirdly but he quickly averts his gaze as soon as he notices you looking at him.

    “Rei! What was that!?” you reprimand her in your embrace.

    “I already told you about the gamble~” she says in between her laugh. She frees herself from your arm to then grab it and pull you away from that area. “Follow me!”

    Rei’s guiding your way through the tables, then passing the cashier—who gives you an awkward smile right when you pass. And then, ah, you get it. She’s about to trap you in the toilet.

    “Now activate my trap card!” she says—again, loudly—as she opens the bathroom door before pushing you in. She follows you in and closes the door behind her.

    “Ryoiki Tenkai, The Fuck Chamber!” she says as she puts up her hand to form some weird hand signs.

    “What the fuck is going on Rei” you nervously scan the entire bathroom with your eyes. It is abnormally clean for a public toilet. Quite spacey as well. There’s some distance from the toilet to the sink, enough for two people to do things.

    “Sit.”

    You turn around to see Rei standing behind you menacingly. “Huh?”

    “I said sit.” Rei points to the toilet. “This is my cursed technique, and whoever is trapped in my domain expansion should follow my instructions down to the minute details. With no exception.”

    “Rei is being Rei, okay then,” you tell yourself in your head. You oblige her shortly after.

    She smiles right as your ass touches the toilet—it’s covered. “Now, remember about the 50-50? You’ll see what you get very soon,” she says as she starts to lower her pants. It’s off now. Rei is just wearing her panties and the oversized JJK shirt. She looks at you once again before turning around to showcase her ass. She’s wearing a g-string. Upon a closer inspection, you notice something shiny buried between her glorious ass cheeks.

    Rei hinges her hips to present her butt even closer to you. She then tugs the string aside to show you her butt plug. “Congratulations! You won the 50-50!” she says as she shakes her butt left to right, the butt plug lodged inside visibly sways, leaking out some lube.

    You feel your cock flares back up, returning to its full mast in no time at all. You quickly free yourself up from your pants and the boxer simultaneously. You’re now sitting on the toilet, in this random cafe in the middle of the city, with your cock pointing straight up, with Rei in front of you flaunting her plugged asshole. What a life.

    “From the moment I understood the weakness of my flesh, it disgusted me.”

    Rei walks backward, still hinging her hips. She’s actually quite flexible with how she effortlessly hugs her own ankles right now. You would probably comment on it if it wasn’t for the distraction of her majestic ass with that sparkly ornament in the middle getting closer and closer to you.

    “I’m gonna bounce on that dick, crazy style!” Rei says as she finally makes contact with your cock through her butt. She reaches your shaft with her right hand to put it snugly in the valley of her ass. She shivers to the hot sensation of your cock resting in between her ass.

    You can feel how warm Rei’s ass is, although the coldness of the plug really throws you off. You slap her ass, light enough for it to not make a noise. It does produce a squeal though. You giggle at her squealing from your slaps.

    “Poor guy, can’t resist the temptation of the behelit. Careful there, else you’ll fall beyond salvation and join the realm of Apostles themselves,” Rei is giving you a sharp icy stare, completely in contrast to how she positions herself on your dick.

    “Poor me indeed. Say, would you mind if I humbly unplug your booty? Lest you’d want me to, uhm, join the Apostles?”

    Rei’s eyes are shining after those words. It’s not often that you play along, let alone understand her words—you don’t, you very clearly just repeat what she said. 

    “Awww! You know Berserk?! Okay, you may undo the seal. Need I remind you, that you shall have the strength to conquer the tailed beast locked inside.”

    “... Oh! I understood that reference. Is it Naruto?”

    “Yes! Finally!”

    Again, the contrast of Rei smiling so innocently, her face looking pure, her happiness permeating through it, and the fact that she’s presenting her plugged asshole to you in a goddamn cafe’s toilet is something so incredibly hot for both you and her.

    You caress both of her cheeks before spreading it wide. Rei whimpers. You have no idea how long the plug has been sitting there. Her anal muscles are already loose. You flick on the handle of it, making it vibrate inside her ass. Rei whimpers again. Then you finally slowly pull it off. To nobody’s surprise, you did it quite easily.

    Her anal ring gapes for some seconds before winking at you repeatedly as you remove the plug. Her walls are already flooded with lube. A lot of it is leaking. You insert a finger into her ass. It’s incredibly warm and slippery.

    “Ngghhh. The law of equivalent exchange demands that you should stick your sword in me. Hayaku!”

    You just smile and sigh. Can’t a man enjoy the view of his girlfriend’s beautifully gaping ass?

    You twirl your finger around before releasing, making sure you scoop enough lube to apply it onto your cock.

    “Okay Rei, ready?”

    “Are you challenging me-”

    You don’t let her finish her sentence. Cutting it off with your dick penetrating her balls deep from the start. She immediately falls silent. Her eyes rolled up. Her lips parted ways, still without a sound.

    “Ggrrhh. Fuck. Your ass is always so tight.”

    You don’t move for a while. The sudden penetration shocks not only her, but you are too. You’ve fucked Rei in the ass multiple times. Each time you do it though, she’s never this tight. Is it because you two are fucking in public? Does it excite her that much? Or is she actually afraid of being caught? Doesn’t matter. You pull out little by little, before sliding fully back in by pulling her hips closer to yours.

    You try your best to stay silent, even though her anal walls are giving you quite significantly better sensation than her throat a few minutes back. You savor the feeling, fucking her slow and deep. It’s very different from the usual anal sex you have with Rei. Normally it is never this quiet. Intense clapping sound from the contact between your crotch and her ass, your moans, her screams, and her frequent prattles are the norms. She’s never this quiet. Wait, she’s being quiet? Ah. So she does have some shame.

    You try to take a look at her face over that voluptuous ass in the way. You can see her tits moving freely, her shirt all bunched up just under her head. She’s sweating. Her breasts are shiny, much like her armpit shyly peeking out through her crumpled shirt. You look even further, there it is, her face, it looks so red. You’re not sure what causes her blood to flow all the way there. Probably because her head is in fact on the floor right now, or is it because she’s holding herself from making a sound? Or probably both at the same time. She notices you looking at her, so she gives you this pleading look while subtly shaking her head.

    You notice her earnest request, probably asking you to slow down. As a response, you smile at her. Then you slowly shove her forward, releasing yourself from the vice grip of her asshole. ‘plop’. She immediately slumps forward. You also lean a bit forward from where you’re sitting, following her movement. The two of you are gasping for air.

    “Cat’s got your tongue Rei? Why are you so quiet?” you say in the middle of your ragged breaths

    Rei needs some time to stabilize her breaths. She’s looking at you from below, slowly raising her body after resting on the floor. She’s still kneeling with her ass facing you. The circular hole hopelessly opens and closes after losing its grip on your cock. Again you silently thanked the cafe staff for keeping the toilet super clean. 

    “Y-you fool. T-this isn’t even my final form-kyah!”

    You grab her by the hips and force her to get back on her feet before turning her around. Then you tug her down to straddle you. “Yeah? Then try to endure this,” you slip your dick back inside her ass. She almost lets out a scream if it isn’t for her hands quickly covering her mouth again. She sits on top of you with your dick fully lodged inside her anus.

    Your grab on her hips tighten as you lead her bouncing her ass. Interestingly, for someone so meaty, Rei feels so light on your lap like this. You slowly rub your hands upwards from beneath her shirt—it’s a bit annoying to see those Japanese symbols rather than her naked incredible tits—to feel her body. Her entire torso is hot and sweaty. The sweat makes it easy for your palms to glide towards her tits. You squeeze those melons, she squeals—still with her mouth covered.

    “See? Is it not better to just enjoy sex like this Rei? Hm?” you say, thrusting up. She complements the movement by driving her hips down every time you go up.

    Rei throws her body forward—yes, throw, the back of your head banged the wall because of it. “Ngh! Nah, I’d win.”

    You haven’t quite processed the twinging pain in your head when Rei suddenly says shit again and proceeds to go absolutely ham on you. She grabs your shoulders to use it as a handle as she drives her ass down. She twerks on your lap as wild as a hungry lioness—probably even wilder. You desperately hold on to her ass. The only thing you can do now is praying to whatever entity you can think of as your girlfriend really starts to drill herself into you with no mercy.

    It doesn’t take more than 10 minutes of this for you to feel a familiar knot in your groin. “Fffuck. Rei! I’m close.”

    “Aaah. Tell me, do you yield?”

    “Fucking hell Rei, fuck! I yield!”

    “Himmel the Hero would’ve done the same! THE ONE PIECE IS REAL!!!”

    That last sentence almost negates all the things that've been building up. For a split second you almost decide to ‘whattheactualfuck’ yourself—your cock—out of Rei, but thankfully you persist. Your sack is full, it’s about time to shoot everything you have into the depth of her anus. She’s not doing any better, you can feel her walls clenching you hard. She’s squirting on you soon after. The both of you scream while releasing everything.

    You and Rei stop moving altogether. She limps and drops her entire weight onto you. Your hands also slump aside, letting go of her ass. You can feel her heartbeat, it’s matching yours. Her nose is exhaling hot air into your neck. You kiss her forehead, before she looks up on you with those doe eyes. Despite everything—its about your dick, it's still in her ass—she is still your cute and clingy girlfriend, looking up to you with love and affection deeply planted within her eyes.

    “You like that baby?” you ask.

    She nods. “How does it feel to get mogged while lovemaxxing your dihh into my ahh homeboy?”

    You cringe. You cringe so hard your cock withdraws itself out of her anus from pure disbelief.

    “What the fu-”

    “Have you ever fucked my ass with your life on the line? Forget about fucking my ass, it’s time to kill each other!”

    You laugh. Her words are just so incomprehensible that the only reaction you can emit is laughing. Oh well, this is Rei in her element. She may annoy you sometimes, and you might hate her for it. But in the end, it’s still her. You will always love her. You’re about to open your mouth, but she’s faster.

    “So, how do you rate me from 1-10? Is it one-two-three-four-five six seven?” she says with a flat face as she sits straight up to do a weird hand gesture of raising and lowering her hands on the sides with her palms facing up.

    “I love you Rei.”

    She doesn’t expect that. Her cheeks are slowly turning red as she looks away in shame. “B-baka! ... I love you too.”



    15

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