your kaiser/isagi and nagi/rin smuts are so hot omg 🥹 im drooling just thinking about a nagireo x reader
hope you enjoy 🤭
𝙁𝙀𝙑𝙀𝙍 ── .✦ 𝐌𝐃𝐍𝐈 .ೀ .ᐟ
a post-uni graduation trip to the hot springs with your two best friends seishiro nagi and reo mikage winds up in a very steamy situation
cw ⋆.˚ smut, female!reader, comedic at the start, drinking implied (in memories), vouyerism, exhibitionism, dirty talk, semi public sex in the onsen yumm, threesome, nipple play, dry humping, piv, unprotected sex (wrap it up), pet names (baby, sweetheart), backshots, cumshot, creampie, masturbation, pussy slapping (once), multiple orgasms, squirting, cum play, daddy kink for a hot sec (reo was really feeling it), praise, some mxm, bigdick!nagi and he's filthy amen, this is so hot ugh i need them asap
wc ⋆.˚ 3.4k
despite hakone not being too far from home, to be there felt like you’d stepped foot into an entirely new world. being face to face with nature you don’t have the opportunity to see back in your bustling city of tokyo is a special gift.
it’s been months since you and your two best friends graduated from university, but you all agreed delaying the celebratory trip to the cooler months would make for a better experience. bathing in hot springs when the weather was scorching sounded like a festering grounds for heat stroke and dehydration– a surefire recipe for disaster.
“fuck!” nagi groans from the passenger’s seat, smacking the buttons on his switch in frustration, “i can’t beat this damn level.”
reo laughs as he flips on the turning signal to pull into the onsen’s parking lot. “you’ve been staring at that screen the entire drive,” he states, “i hope you’re not planning to do that the whole weekend.” nagi flicks his eyes around guiltily, and reo tsks. “...of course you are.”
“i won’t allow that to happen,” you pipe up from the backseat, hands on nagi’s headrest as you lean over his shoulder. you smirk and steal the console from his hands, and he gasps.
“hey! give it back!”
“no,” you refuse, “this trip is meant to be bonding time for the three of us and to celebrate our achievements together. i’m not letting you sit around for 48 hours straight staring at a fucking screen.”
nagi sighs with a defeated, irritated grunt and crosses his arms. “whatever, fine.”
you hum in satisfaction, stuffing the switch into your tote. you’d find a better, safer– and hidden– place for it once you made it to the room.
nagi’s not paying attention, reo’s cheeks are dark red, and you’re just confused once you reach the front desk.
“there’s been a mix up with bookings and we only have a room with one king bed available for you.” the clerk says.
you sigh, nodding in understanding as you finish checking in. it’s not like the three of you hadn’t shared a bed before, but it’s been nearly twelve years; you hadn’t since you were eleven years old. the implication of the same situation is much more loaded now as adults.
nagi flops his stomach dramatically onto the bed once the three of you finally enter the room, dropping his bag at the foot beforehand. “maybe i don’t need my switch, anyway,” he says, “this bed is comfortable enough i’ll probably just sleep all weekend.”
“no, you will not,” you hiss at him with a laugh, slapping his ass jokingly.
he grunts and rolls his eyes. “feisty.”
reo’s already making use of the dresser, placing his clothes and necessities into a few of the drawers. “it’s nearly seven,” he slides the top one closed, “should we eat dinner and then head for the springs?”
you nod. “i’m down. ending the day soaking my muscles sounds delightful.”
nagi just shrugs. “sure.”
dinner inside the room is full of banter mixed with more profound topics. nagi takes a deep dive into the process of creating a video game– expected from a gamer and computer programming major– and though you understand nothing, you support him all the same.
“i have no idea what any of that means,” you chuckle, “but that’s awesome!”
nagi laughs, popping a french fry into his mouth.
not too much later, the three of you change into your bathing suits and head towards the springs. you all decided on checking out the natural ones a bit further away from the main property, hoping it would allow the time to just be the three of you with no one else around.
you were pleasantly surprised to find that, indeed, the three of you had the spring all to yourselves. the lighting was dim enough that you could see where you were going, but wouldn’t interrupt relaxation.
you sigh blissfully as you sink into the warmth, body instantly calming from the water soaking into your muscles.
“damn,” you hum, “i really needed this.”
“yeah,” reo exhales, head falling back against the rock, “practice has been kicking my ass.”
“how is pro going for you?” you ask curiously.
“so far so good,” he answers, “but it’s only been a couple of weeks. i’m sure the intensity will ramp up soon.”
you nod in acknowledgement before turning your head towards nagi. “what about you, sei?”
he just shrugs. “it’s cool, i guess.”
you laugh. typical nagi being nonchalant about anything and everything, even something as important to him as soccer.
you exhale a dramatic breath as you stand up for a moment to stretch your limbs.
the sweet whines of relief spilling past your lips are doing something to both reo and nagi unbeknownst to you, and the way your wet skin glistens in the lowlight and bathing suit sticks against every curve of your body isn’t helping, either. your cute ass cheeks are poking out from your bottoms and the boys feel like they may come from that sight alone. reo gulps, strained beneath his shorts. nagi’s cock twitches in sync with every hushed whimper you release.
and then you sit back down like nothing happened, humming joyously as you sink deeper into the water once again.
the air changes. you don’t notice right away, but once you do, it renders you a bit confused.
“did… i do something?” you ask slowly, brow lifted. “you two became super quiet all of a sudden.”
“it’s nothing…” reo trails off, keeping his attention turned away from you. his eyes are squeezed tightly shut as he tries to will away thoughts of you naked and screaming his name.
you glance between him and nagi, both of them seemingly avoiding looking at you. “okay, that’s bullshit,” you chuckle lightly, yet remain a bit uneasy from the subtle uncertainty resting between the three of you now, “you two aren’t even looking at me.”
“i’m just enjoying the scenery,” nagi lies.
you snort. “what scenery? sei, it’s pitch black. you can’t see anything!”
“don’t underestimate my night vision abilities." he jokes, but his heart is about to explode. he can’t stop thinking about ripping your bikini bottoms off of you and sliding you along his throbbing cock. “fuck my life,” he thinks silently to himself.
“whatever,” you sigh, “i’m going back to the room then–”
“wait,” reo cuts you off by grabbing your wrist suddenly, keeping you from standing up, “just… stay here for a second, please.”
your lips part slightly as you attempt to assess what’s happening. “you’re being weird, reo.”
he thanks the gods above it’s too dark for you to notice how fucking red his face is. “i–i just need a minute.”
“what’s wrong with–,” and then you pause, eyes growing wide as they finally fall down to his hips hidden beneath the water. you couldn’t see much, but the dim glow of the surrounding lighting was sufficient to make it out just enough.
he was hard as fuck.
“oh,” your voice is quiet, throat tightening as you slowly tear your attention away from his obvious bulge to look back up at his face. he’s turned away from you still. you twist your head to look at nagi, and you observe he’s in the same predicament. “i see,” you laugh nervously, heart refusing to rest. suddenly, the temperature of the hot spring shot up ten degrees.
you’re clenching around nothing, mind conjuring up images of being sandwiched between your two best friends, cocks filling you up until you couldn’t take it anymore.
“what the fuck?” you yell silently, “why am i thinking about them like this?”
but then, it hits you– this wasn’t the first time.
you recall the night you accidentally walked in on reo eating out some random girl at a party and quickly slamming the door shut the second he looked up and caught you standing in the doorway, only for you to fuck yourself at home later that night pretending it were you in the bed with him instead. you were so drunk then that you hadn’t remembered up until now.
or when nagi forgot you were coming over one afternoon and you heard him moaning from his bedroom. you filthily tiptoed to stand right outside of his door, cunt pulsing along with each squelching plap plap plap of what you could only assume were from his hands fisting his cock. you’d blocked that incident from your memory.
you return back to the present moment, fingers curling into the plush of your thighs. “um,” you clear your throat, “i could… help you out, if you want?”
the atmosphere freezes, reo and nagi tensing beside you. you swallow hard, keeping your attention towards your lap.
“y/n…” reo’s voice is raspy, nearly inaudible, “what… what do you– fuck.”
nagi whips his head to look at you, watching the lump in your throat move as you try to fight the nerves. “are you… serious?”
“yeah,” you squeak, stomach twisting violently. you were so wet from the anticipation that the spring might as well have been created by you. “i… i don’t mind,” you continue, “i–i’ve thought about… it– us– before.”
reo’s looking at you now, jaw slack from the shock of your confession. “you’ve… you’ve thought about fucking us?”
you bite your lip. “yeah. i just– just forgot up until now.” you chuckle, tucking your wet strands behind your ears, “i suddenly remembered.”
“what– when–,” nagi is still trying to process.
“i don’t know if you remember,” you say to him, “but when i came over that one day to play ‘breath of the wild’ with you right after it was released, you forgot i was and... i heard you moaning from your bedroom.” you gulp.
nagi blinks at you, and then he conjures up the memory himself. “oh,” he huffs, “fuck, i–i didn’t realize.”
“and me?” reo asks, flickering eyes trying to focus on your face while they keep dropping involuntarily to the cleavage spilling out from your bikini top.
“i, uh–,” you chuckle nervously, “when i caught you eating that girl out at aiku’s party last october– i think her name was kaia or something?”
reo’s gasp is faint, but you hear it. “ah, yeah,” his shorts tighten a tad more, “i think that was her name.”
it’s quiet again, and all you can hear is the wild thumping of your heart beating against your chest. you squeeze your thighs together in an attempt to ease the ache between them.
“well,” nagi breaks the silence, “i’m pretty fucking horny right now, so… uh, i’m down?”
“me too,” reo speaks up.
“okay,” you hum, looking between both of the boys to reassure them you’re certain, “i want this.”
nagi lets out a sigh of relief, “thank fuck,” before grabbing your face and slamming his lips against yours. you gasp at the sudden contact, melting into him seconds later as your hands move to rest on his hips. reo slips closer behind you, lips brushing against your neck and shoulders as his arms wrap around the front of your torso, fingertips padding into your plush tummy. he slowly slides them up towards your chest, snaking them beneath the wiring of your bikini top whilst his teeth unties the knot around your neck.
“f–fuck,” you mutter into nagi’s mouth, chills running down your spine– despite being hot literally and bothered– as your bikini top slides off of you into the water reo pinches and rubs your perky nipples.
nagi drops his hands from your face down to your waist, toying with the straps of your bikini bottoms as he presses further into you. you lift your leg over his hips to straddle his lap, reo following your body suit as he stays position behind you. he slides his tongue across the nape of your neck and you whimper.
“god,” he groans, “do you have any idea what you fucking do to me?”
nagi pulls your hips down against him with a hard grind and swallows your yelp. he can practically differentiate between the hot spring water and your honeyed cunt seeping through your clothing.
“can fucking feel you soaking me,” nagi hums, breaking the kiss to look you in the face, “can i fuck you? need to fuck you.”
“please,” you huff out, head falling backwards against reo’s shoulder as he slips a hand beneath your bikini bottoms to reach your cunt, sliding them through your slick whilst the other continues to massage your breasts. “need it, need you, sei.”
reo pushes the material aside to make room for nagi as he frees himself, teasing your entrance with his bulbous, leaky tip. reo continues to circle your bundle of nerves, moaning in your ear as he begins to grind his cock against your back, chasing relief.
nagi’s surprisingly big, you choking out a groan as he stretches you full to the hilt. he begins to move you along his thick cock by grabbing your ass, hissing as the water splashes around your bodies with each slam against his pelvis, almost simulating the lewd squelching of your cunt around him.
“jesus,” he grits, eyes already rolling, “you feel so fucking w–warm.”
reo’s looking over your shoulder and focused on the way nagi disappears and reappears inside of you, breaths falling short as his thrusts against your spine synchronize with nagi’s in your syrupy cunt. thank fuck the surrounding lighting was enough for him see the beautiful sight in front of him.
“fuck,” he huffs, cock twitching, “you take him so well, baby.” he sends a slap to your cunt and you cry out from the pleasurable sting.
nagi groans, throwing his head back ecstatically when you squeeze his cock, legs shaking from how good you feel around him.
“i’m already close,” he breathes, head falling forward again to look you in the eye. you whimper at the intense eye contact, pupils enlarged and glassy as you begin to slide along him with more desperation. “fuck, you like that?” he taunts, “like it when i look into those pretty eyes of yours while you’re taking my big fucking cock?”
“y–yes!” you whine, hands gripping his shoulders with resolve as you feel yourself inching closer to the edge. reo’s circles on your cunt are so precise and calculated, you’re losing you’re fucking mind. “i’ll be your good girl, baby, i’ll be so good to you.”
“you are,” nagi affirms, thrumming with a sly smirk as he leans forward to kiss you. he slides his tongue into your mouth as he sends one, hard thrust deep into your weeping cunt and you scream down his throat, legs shaking violently and spilling your sweet nectar all over his length.
he growls, pistoning erratically up into you as he tips over the edge, spurting his hot, milky cum in your warm, greedy pussy.
“fuuuuck,” he chokes, fingernails digging at your sides, “you’re fucking milking me, sweetheart.”
reo’s still pressed against your spine, the sweetest whimpers ringing through your ears as he nibbles on your earlobe, eyes honed on the beautiful view of yours and nagi’s cum coating his fat tip and base.
“oh my god,” he groans, “that was hot as shit.”
“you’re next,” nagi licks his lips, gently lifting you off of him so they can switch positions.
but reo has other plans. he lifts your body out of the water just enough to bend you over the side, ass up and perky for him.
nagi grins wider, settling back down beside the two of you, palm encircling his shaft as he begins to fist himself slowly. “even better,” he coos, taking delight in the show he’s about to witness.
reo frees himself from confinement, pulling your bathing suit bottoms down to rest on your lower thighs before teasing your folds with his wet, angry tip. he then leans over your back so his lips can reach your ear and hums, low and sultry, “you ready for me?”
“god, yes,” you huff hurriedly, wiggling your ass at him with so much need. he chuckles, kissing your cheek before settling his chin into the crook of your neck and slamming his hips into you with one, hard thrust, bottoming you out immediately. “fuck!” you scream, nagi throwing up his freehand to cover your mouth and keep you quiet. you groan loudly into his palms, spit coating the creases.
reo’s growling, sending slow, deliberate thrusts deep into your cunt, sucking in his teeth each time he feels you squeeze around him. “oh, fuck,” he grunts, tangling a hand into your hair whilst the other grips the fat of your ass. “you’re still so t–tight,” he huffs, “even a–after sei was inside of you? jesus christ.”
nagi's heavy breathing is raucous as he fists himself faster, white beads of precum creaming his pretty cock as he spreads it graciously with each thrust. “isn’t she perfect?” he whimpers, biting down on his lip to keep his sounds controlled. “fuck, yeah– keep taking reo. just like that, y/n– shit– mph– you’re so fucking sexy, baby.”
“such a pretty fucking pussy,” reo gasps, thrusts growing quicker by the second. nagi is about to lose it watching the way your body recoils with each brutal drive of reo’s hips. reo drags his thick cockhead across your gummy walls, laughing ecstatically as you begin to shake in his grip. “fuck, you close?” he lifts his torso up so he can see you soak his pretty cock when you come.
you nod profusely, extending one hand underneath you to reach your cunt. you rub your clit with slow, firm circles, eyes rolling violently as you teeter the edge for the second time. nagi’s hips are lifting up into his fists as your groans become louder, sweat beading at his forehead as he nears his orgasm.
“fuck,” he growls, throat cracking, “gonna fucking come–” he stands up quickly, splashing his thick, white seed all over your exposed back with a ragged cry. “oh, shit– shit,” he hisses, pumping himself dry, “god, you look so pretty wearing my cum.”
reo groans at the glorious sight, cock sliding mercilessly into your cute, tight cunt as he grips your hair harder for leverage, teeth gritting with each brutal drag. “fuck, i wanna fill you up,” he hums, “gonna stuff you so fucking full.”
“please, reo!” you mutter, voice finally sounding out once nagi removes his grip on your mouth. “want it so bad, need your cum!”
the way you’re moaning has him twitching uncontrollably inside of you, a sharp groan releasing from the back of his throat as he finally spills into your dripping cunt with devotion, painting your pretty walls white and possessively.
“fuck!” he growls, sending you short, shallow thrusts to ride out his high, “swallow it baby, fuck, let me see that pretty pussy take it.” he’s so sensitive, but needs to feel you cream on his cock. he slows his thrusts, deep and raw, making sure to hit every pleasure point with precision. “c’mon, baby,” he purrs, “squirt on daddy, yeah?”
your voice breaks, and you spill onto him, rushed, determined circles of your fingers pressed to your puffy clit pushing you over the edge. your body shakes as he helps you ride through it with steadily decreasing thrusts, the most angelic, otherworldly whines escaping your tongue with each intentional slide against your walls.
“oh my god!” you cry out, enamoured by the rush of ecstasy flowing through your veins, “feels so– ah– g–good!”
nagi’s palms catch reo’s chest before he can collapse tiredly onto your back, eyes flickering between reo’s fucked out face and his own cum decorating the small of your back.
“hey, reo,” he smirks, lowering his lids, “why don’t you help me clean her up, hm?”
reo’s breath is shaky as he watches nagi slide his tongue through his own release, scooping it up before lifting his face to meet his. you shift your body enough to peer over your shoulder at them, watching as nagi pries reo’s mouth further apart with the pressure of his thumb and slides his pink, creamy muscle into his mouth. your cunt clenches and reo groans, hands tangling into nagi’s hair as they messily share nagi’s cum, spit and thick white coating their lips and spilling down their chins.
“fuck,” you huff, watching in awe as your two best friends makeout right in front of your face. the way they moved almost made it seem like they’d done it before.
nagi parts from reo with a bite to his bottom lip, chuckling lightly as he finishes with licking up the residue still spread across reo’s lips and chin.
“mmm,” he hums, licking his lips satisfied.
reo’s instantly hard again, eyes dropping down to his fat cockhead beading and length straightening up. “shit,” he exhales.
nagi laughs.
you smile wickedly, poking your tongue into your cheek. “round two back in the room?”
tags: @bachimeguru @louddinosaursblog












