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pupyuj · 6 months

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→ “body party.” || ahn yujin x reader fic.

— a cute girl approaches you about your workout routine in your favorite gym in town, and then very strange but sexy events follow...

word count: 8.7k.

dynamic: dom!bimbo!ahn yujin x sub!gym rat!reader.

content warning: smut, unnie kink?, masturbation, shower sssex 😵‍💫, fingering, oral, cunnilingus, semi-exhibitionism, voyeurism, body worship, nipple play, oral fixation, (legal!!) age gap, implied piss kink (yeah i'm serious).

requested? : nope. (just me being a whore for yuj again...)

a/n: the lack of yujin gym content while knowing full well that she's a gym rat should be a federal crime.. starship entertainment are you ready to die . anyway, SHE'S FREEEE!!! soooo sorry this took literally FOREVER ya'll but i'm happy i'm finally letting her out the drafts!! i had a lot of fun writing this so i hope ya'll enjoy it!! 💙💙 apologies for any mistakes tho,, I GOTTA GO TO CLASS—

ahn yujin didn’t know what to expect when she entered the gym after weeks of burying herself in her homework, but she certainly didn’t expect to meet a sickeningly pretty and ferociously sexy girl like you.

yujin knew she had to fuck you the moment she laid eyes on you in the changing rooms. you appeared to have just finished working out, judging by your damp hair and the fresh set of clothes you were wearing. yujin had to be discreet with the way she was checking you out considering that you were sitting on a bench only a few ways away from her locker, so she should at least be looking at you from the corner of her eye but she didn’t even try to! she was completely mesmerized by your toned body, sculpted to perfection by nobody but yourself… yujin could swear she was drooling as her eyes locked onto your abs, so inviting…

if she had a dick, she would definitely be hard.

you were wearing a simple crop top with sweatpants and a jacket but god, yujin has never seen a finer woman in her whole twenty years of living. the headphones around your neck wasn’t helping either — you were by far the most attractive girl in town, and yujin has seen a lot of pretty girls!

yujin didn’t know you. she was pretty sure this was the first time she has ever seen you, but oh god that thoughts that ran through her mind… surely you would run away from her if she let you hear about them. she couldn’t stop looking at your face, her pussy clenching at the way you bit your lip and swiped your tongue across them. a part yujin wanted to approach you right now, but you looked like you were tending to something important on your phone. what would she even say? right now, yujin just had this raging urge to bend you over the bench you were sitting on and make you scream her name until it was the only thing you could say—

suddenly, you got up from your seat, slinging your gym bag over your shoulder and smiled. at yujin. pause. oh good god, you were looking at her.

“see you later.” you said before swiftly turning on your heel and exiting the changing room, bidding goodbye to everyone else as well. yujin was blushing so hard. she had to keep herself from running and jumping around the changing rooms. did you have to sound so cute too?! yujin swore she almost chased after you and asked for your number, but she knew she would have looked stupid.

“why do you look like you’re about to explode?” yujin’s friend, gaeul, has finally entered the changing rooms with another friend in tow, jiwon.

yujin bites her lip, “hottest girl in town told me that she will ‘see me later’.” she was giggling, earning a few strange looks from the other girls in the room.

“that’s weird. i haven’t said anything to you yet.” wonyoung, who has apparently been in the room this entire time, says while filing her already-perfect nails.

yujin rolled her eyes at her friend before taking her hand and pulling her up from her seat, patting her ass, “let’s workout!”

it should be noted that you were in yujin’s head the entire day. she couldn’t do her routine properly because she was imagining your pretty face in between her legs… she almost fell off the treadmill for that exact reason. gaeul scolded her for nearly dropping a dumbbell on her own feet, because yujin had been busy drooling while remembering how your ass looked like it would be perfect to have in her hands. needless to say, yujin was very infatuated. there weren’t enough words in the world to express just how much she wanted you!

yujin was thinking about you even after she left the gym. she was thinking about you while she was walking her dog, while she was cooking dinner, while she was eating said dinner, while she was in her bathtub, while she was watching a cool new movie on netflix, and then… while she was trying to fall asleep. actually, she was just laying down on her bed, staring at the ceiling. and then, she slid her hand inside her pants, and started rubbing her pussy at the thought of you. it was actually unbelievable how a stranger she only saw for less than five minutes could have this much of an effect on her.

yujin fingered herself like she had never done before—playing with her clit with her own thumb, moaning so loud, bucking her hips into her own hand… hugging her pillow tightly to muffle her moans at least a little bit. but she kept going, she couldn’t stop. yujin made a mental note to approach you as soon as she sees you. and fuck, she was going to make sure that the next time she goes to the gym, she was going to get laid.

then, lo and behold, yujin’s wishes came true when she spotted you entering the gym as she was parking her car. gosh, your ass looked so good in those leggings. yujin couldn’t wait to just put her hands on you and give you the best fuck of your life. and yes, she was confident because she had quite the reputation in this gym, in this town. yujin was not only good at sex, she was fucking amazing. and she had no doubts that she would have you begging for her to make you come again by the end of this entire thing.

but first, yujin has to find a way to approach you without coming on too strong. that might have worked to the other girls she has hooked up with in this gym, mostly because they were just as much of a whore as yujin was, but she had a feeling that you were a girl with some sense of class. as much as yujin hated taking things slow especially when all she really wanted was to fuck, the idea of getting you to submit to her after she was done being all romantic sounded very enticing.

yujin watched as you talked to the male receptionist behind the counter. he was blushing, he was stuttering, and yujin figured that he must have been a part-timer because he looked young and hormonal. yujin grimaced as the boy tripped over his words and bit his tongue a few times as you made small talk with him. the slightly older other receptionist stared as the young boy sweats profusely at your presence—you had that effect on everybody, apparently. yujin crosses her arms, not at all a fan of the way the boy’s eyes lingered on your ass as you turned to enter the gym.

gross.

granted, yujin has done the same and has thought worse things about you but see, it was way different!

yujin trailed behind you as the two of you both made your way towards the locker room. everybody was staring at you, and then at yujin. a few girls waved at her, but she couldn’t keep her eyes off of you, except for the times when she would side eye a few men that looked at you in a way she didn’t like. god, yujin just had this urge to grab you right there and bend you over a barbell bench and show everyone that nobody will be able to make you feel as good as she can.

upon entering the locker room, yujin makes eye contact with wonyoung, who has once again somehow managed to arrive earlier than everyone else. and it seems like she had brought jiwon along with her. there were definitely doing something they shouldn’t have been doing together considering the way they jolted away from each other like they were shocked when yujin, as well as yourself, entered the room. you smiled and greeted the two girls before opening up your usual locker.

yujin’s eyes flicker over to your ass before she busies herself with her bag. of course, wonyoung and jiwon notice this and they approach her about it!

“real subtle, unnie.” wonyoung whispered, a smirk dancing on her lips as she watched yujin roll her eyes.

“we were calling you last night, you know,” jiwon said. “wonyoung and i went out for a little midnight mcdonald’s run and we were going to ask if you wanted anything but you must’ve gone to sleep early.”

yujin chuckled, “oh, i was awake. but my phone was on silent.” she bites her lip, remembering all of the nasty things she thought about you when she touched herself last night. having known yujin since they were little children, wonyoung had this special and amazing ability to be somehow in sync with her mind, figuratively of course, so she immediately knew what yujin had meant by that. the older girl spent the entire day ogling at you after all, what else could she have done when she got home?

“huh… were you busy?” jiwon asked, scratching her head.

wonyoung pats her friend’s back and sighed, “i think it’s best that you don’t know, jiwonie.”

“saying that as if i didn’t just catch the two of you on the verge of pouncing on each other.” yujin bites back, and judging by the way, jiwon’s face flushed and her eyes started darting everywhere, her suspicions were right!

a locker closes, making the girls turn their head towards your direction. you give them a brief smile before exiting the room, humming to a beat and all. wonyoung herself couldn’t help but whistle at the sight of your perfect ass, thank goodness you were wearing your headphones as you left, or else yujin would’ve had to smack her friend upside in the head. even jiwon was seemingly mesmerized by your amazing body—yujin knew she wasn’t alone in all of this!

“i’m going to fuck her.” yujin said. wonyoung looked unfazed by her proposal, meanwhile jiwon’s face had warmed up at the thought. jiwon had known about yujin’s awful habit of fucking every girl she encounters anywhere, especially in the gym, but she hadn’t seen her in action just yet! she has only heard stories from wonyoung and gaeul—stories that made her want to shrink onto herself because of how flustered she got from the things yujin has done.

“she looks like a challenge, unnie. good luck.” wonyoung said, patting the older girl’s arm before taking jiwon’s hand and leaving the locker room.

a challenge, they say? well! if yujin was good at anything, other than fucking, it was having more guts than anyone and taking a leap of faith. she knew she was hot, she knew she was pretty, and she most definitely knew you were gay as hell—she can do anything! with a huff and an encouraging enough pat on the back (given by herself, yes), yujin leaves the changing rooms with a smile on her face, thinking up of a plan to approach you and to slowly make you submit to her. jiwon and wonyoung were occupying some treadmills, chatting amongst each other. maybe even flirting! neither of them have been slick after all.

yujin spots you only a few steps away from wonyoung and jiwon. you were also on a treadmill, walking at a steady pace and eyes glued towards the small screen that played your favorite television show from the early 2010’s. yujin tilts her head, smiling at the way you were so focused on the show that you nearly tripped. you were quick to catch yourself and keep on walking like nothing happened though, to which yujin chuckled lightly before someone—a man!—tapped you on the shoulder and caught your attention. the man was only asking if you were okay but nobody could blame yujin for seeing red because he was not making his interest in your tits subtle at all!

god, if yujin could make that man explode with her mind, she totally would.

“oh, i know that look,” gaeul, who just arrived inside the facility, said with a smirk. she lifted her sunglasses up and wriggled her eyebrows towards yujin. “what’s the plan?” she asked, nudging her friend with her elbow.

“it doesn’t involve you, unnie.” yujin replied. gaeul waved at wonyoung and jiwon before patting yujin’s bum and walking away with a wink. the younger girl sighed and looked at you again. thankfully enough, the man has left you all alone and you were once again focused on your television show. yujin scans the entire room—nearly everybody looks at your direction every now and then. eyes raking all over your body, captivated by your beauty the same way yujin was when she first saw you. all of these people wanted you, but yujin was going to make sure that she was the only one out of all of them that will have you.

see, not a lot of people approached you. and you didn’t know whether it was because you looked intimidating or if you gave off some sort of bad vibes, but a lot of the folks that frequent the gym just don’t seem to be very fond of talking to you, which explains the countless times you have tried chatting with someone and they suddenly start acting like they didn’t know how to hold a conversation. you grew fond of the people that did try to interact with you, but immediately lost affection for them the moment you figured out that all they wanted was your body.

as in, they wanted to fuck you.

like this girl. ahn yujin, she introduced herself. or was that her name? you couldn’t really remember. you logged out of the conversation when you took notice of the way her eyes could not at all stop roaming all over your body. see, if it were anyone else, you would have smiled and made up some sort of excuse to walk away from them, but something about this girl made you stand idly by the stepmill and listen to her. maybe it was the dimples, the frequent lip-licking, the attractive sounds of her laughs, the eye-smile, but god, you absolutely just went dumb for this girl.

what were the two of you even talking about? you had no idea. all you were thinking about was the many times you’ve seen this gorgeous girl before but never once thought to talk to her. in your head, you thought she would have acted like everyone else did but if you knew that she had this much interest in you then you would have entertained her much, much earlier.

while yujin talked, you let your eyes not-so-discreetly wander. she was taller than you, and no doubt stronger than you by the way her arms were built. you couldn’t look away from her abs, which was weird considering you had some of your own and yet, it was hers you were currently obsessing over. jesus christ, she was so hot. and so fucking charming! as much as you were aware of her not-very-subtle pick-up technique, you couldn’t stop yourself from falling for it. she giggled every second, winked every now and then, and you blushed at every single action.

you probably looked like an awestruck dumbass to everyone else right now. but the men around could use this wake-up call. you were only interested in women. tall, tan, and ridiculously handsome women who had ways to talk themselves into a girl’s pants.

“do you think you could give me some pointers, unnie?” yujin smiles sweetly, tilting her head and showing off those cute dimples.

you blinked, realizing that you did not hear a single word of what she said at all. “s-sure! sure, i could. of course.” you answered, clearing your throat right after. yujin eyes shined with pure excitement and you found it so adorable that you couldn’t help but smile brightly at her. you knew damn well that she was spitting bullshit but listen, you were a simple woman!

pretty girl. have to kiss. maybe even fuck—

“so, how do i use this thing?” yujin pats the stepmill, looking at it curiously. you were so sure that you saw her using this exact machine some days ago. regardless, you taught her how to use the machine, talking on and on about specific things. you thought that yujin would get bored of you rambling about a stupid gym equipment but when you looked at her, she was intently staring, absorbing each and every word you were saying. and it was this moment when you thought that maybe she isn’t all bad!

(“she has to be joking right now,” wonyoung said as she stared incredulously at you and yujin. “is she seriously expecting a girl that hot and smart to fall for her usual antics?”

“yeah. i mean, she is yujin.” gaeul replied, smiling proudly when yujin asking the dumbest question actually got you to look at and talk to her.

“i’m not sure if the stupidity is an act anymore…” wonyoung sighed, shaking her head. jiwon was happy for yujin, actually! she was smiling as she watched you and her interact. sure, it was dumb but yujin surely did have her ways. maybe jiwon should write down some notes…)

you and yujin proceeded to chat about your workout routine as she busied herself with the stepmill. you told her everything—your warm-ups, your more intense workouts, the exercises you do when you can’t make it to the gym, your diet—and yujin never failed to listen. your heart warmed up at the gesture. nobody really listens to you ramble on for that long about that part of your life without dismissing you or switching to another topic entirely. you decided that you liked yujin! she seemed like a nice enough girl, and she was very, very pleasing to look at too.

it felt good to have a friend who would listen to your nonsense like this. well, she wasn’t really a friend yet. of course not. you weren’t stupid—you just met! but perhaps the lust you noticed in her eyes before was all in your imagination. just because everyone in the gym viewed you as some prize to be won didn’t mean she thought that too. or that was what you hoped, at least.

(you are so goddamn naive.)

“ah, sorry. i have to take this call.” you excused yourself out of the conversation and went to some corner to answer a call from one of your friends.

(back on the stepmill, yujin shoots a look towards wonyoung, gaeul, and jiwon, winking at them and shaking her shoulders in celebration. gaeul claps silently wearing a proud grin and all, jiwon shoots her two thumbs ups, while wonyoung rolled her eyes in annoyance. no doubt yujin was going to be annoying about her stupid plan working. in response to wonyoung’s attitude, yujin gives her a kiss in the air, making the younger girl grimace and look away.

“so bitter. all she has to do pay me is twenty bucks, geez.” yujin muttered under her breath.)

after a few minutes or so, you came back to yujin who was now off the stepmill, thinking that she had had enough of the machine for the day. “thanks a lot for the tips, unnie. i think i should know what to do with my time here now.” yujin says. again, you knew she had a routine of her own—and a pretty complicated one at that! so you didn’t know what exactly she was thanking you for.

nevertheless, you shot her a smile back. “no worries, yujin-ah.”

yujin couldn’t help but blush, but she was quick to cover up her bashfulness with a bold statement. bold in your standards anyway. “you’re sweet, unnie. could i have your number?” bold, because nobody in this damn place never knew how to hold a conversation with you, let alone work up the courage to ask for your number after only a solid few minutes of useless talking!

“it’s not everyday you meet decent people at the gym, you know?” yujin steps forward, tilting her head and blinking at you innocently. “maybe we can even hang out somewhere else! i think you’re great, unnie.” she says, a sheepish smile gracing her features. oh, she really has charmed you. because before you knew it, you had her phone in your hands and you were typing down your number on it. she probably meant it as friends, right? right? yeah, probably.

“thank you.” yujin says when you return her phone to her. she stares at her screen for a bit, pretty eyes fluttering back up to glance at you for a second, before she starts typing. no doubt to send you a quick message so you could save her number on your phone. you felt your device vibrate in your pocket but you don’t bother to pull it out.

“oh, are you leaving early today, unnie?” yujin asks as you pick your water bottle up from the ground. you noticed the pout on her lips when you stood back up, and it made you smile a little.

you nodded, “yeah. i made some plans with a friend today, that ought to be fun.”

“aw. i guess i’ll just see you tomorrow, then?” yujin truly did sound disappointed. you almost wanted to ditch whatever plans you had, but you weren’t that kind of friend. you would never cancel plans just to spend time with some stranger from the gym! (you weren’t that kind of friend, yet.)

“mhm. i’m always here anyway. either to do some work or to just visit. some of the staff are my friends,” you grinned and waved at the cute female employee in the distance. yewon, as her name tag showed, waved back at you before doing whatever chore she was doing. “it was nice meeting you, yujin-ah.” you pat the girl’s arm before walking past her and approaching yewon, who took out one of her earbuds and started chatting with you.

however, during the entire time you were chatting with yewon about your plans (the very same plans she was to join later), your eyes couldn’t help but wander. away from your friend and towards the direction of one ahn yujin, who was now busy talking and laughing with her own friends. it seems like she couldn’t help herself from looking at you too. the two of you shared glances and small smiles as you talked with your respective friends. of course yewon wasn’t stupid, she noticed how your eyes never focused on her.

“what happened to never making friends with the people in the gym, (y/n)?” she asked, crossing her arms. “or will she become something more, i wonder?” yewon teased, nudging your arm and everything while wearing a smirk on her cute face.

you blinked innocently at your friend. “what do you mean?” you knew damn well what she meant! a girl as pretty as yujin staying solely as friends with you? why, that was akin to saying that hell would eventually freeze over! yewon rolls her eyes at you and walked away, saying something about doing her job and updating you of her plans later. when she left you on your lonesome, you started walking back to the changing rooms.

and of course, you spared one last glance at yujin. and it turns out that she had been looking at you the entire time.

she smiles, you do the same. and despite your resistance, your heart skips a beat.

something more, yewon said! well, after seeing those abs and dimples up close, you sure hope so.

you ended up taking a shower in the changing rooms with a bright smile on your face, thrilled for the new and exciting adventure you might have with your new ‘friend’.

for the past few days, everything you have been doing, you’ve been doing it with yujin. but in the gym, of course. you’ve told her about your usual routine so she started following it, you take breaks from workouts together, and you talk a lot in the changing rooms before and after working out! you even got to know yujin’s friends a bit as well! other than yujin herself, jiwon might be your favorite in the little group as you often find yourself smiling and waving at her whenever you see her. but you’ve tried toning the smiles down a bit after wonyoung sent a glare your way one time. but yujin reassured you that wonyoung doesn’t hold any negative feelings about you—she was just naturally overprotective of jiwon considering wonyoung has been crushing on her for the longest time.

anyway, yujin’s friends were lovely. yujin herself was lovely. you were glad to be friends with her.

in fact, you’ve become so close that you eventually wanted to hang out with her outside of the gym! fortunately enough, yujin liked you to the point where she agreed to do whatever you want! from brunches, to visiting exhibits and aquariums, going to concerts—everything! yujin quickly became one of your best friends, but one could say that the two of you are too close. or at least that was what umji told you.

“just be careful, (y/n). people you meet in the gym have a track record of being, well, not very good!”

she was referring to your exes, but it wasn’t like you were planning on dating yujin! nor were you planning on liking her like that. ahn yujin was simply your friend. your criminally attractive friend who makes shameless comments about how hot she finds you and always seems to have her hands on you. like now, at this present time, she has an arm around your shoulders as the two of you watched a cartoon that only aired early in the mornings on your living room couch.

the two of you have become comfortable enough to be affectionate like this but recently, you’ve noticed that there’s been something in the air. and you weren’t stupid. you knew all about sexual tension but this one was simply ridiculous—it was off the charts! in your head, you blamed yujin for being so unfairly hot and charming. every cheeky grin, smirk, and wink sent your mind into a frenzy and before you knew it, she was all you thought about as you lay in your bed at night!

“the girls and i are planning on going to that fair later in the week. will you and umji-unnie be there?” yujin asked, shiny eyes landing right on yours. she realizes that you’ve been staring at her and laughed lightly, but chose not to address it since you’ve looked away with your cheeks burning. it was a normal occurrence at this point. it happens to yujin sometimes too but instead of getting caught staring at your face, it was your ass. or boobs depending on which private part of yours she chooses to drool over for the day. you try to tease her about it when you do catch her but yujin always finds a way to smooth-talk her way out of scrutiny.

damn her and wits.

“i think so. umji’s girlfriend has been waiting for that fair since she missed it last year so umji is legally obligated to go. and that automatically means that i’m tagging along.” you pulled out your phone from your sweater pocket and looked at the time. 8:43. you and yujin were going to drive to the gym soon.

“you’d willingly third-wheel? god, i refuse to be around jiwon and wonyoung unless gaeul-unnie was with me. they aren’t dating but they sure can be some saps.” yujin sighs, playfully rolling her eyes at the memory of her two best friends always playing push-and-pull with their feelings for each other.

“i won’t be third-wheeling if we just leave the lovebirds and go on our own adventure,” you tried to sound nonchalant about the whole thing as much as you could but if yujin was able to see through you, you wouldn’t be surprised. “with gaeul too.”

“nah, forget about unnie. i bet she’d love to be alone. she’s kind of weird sometimes,” yujin smiles at you. that same charming smile she always shot your way since the day she approached you. so handsome. “we should definitely just go together.” you didn’t get to say anything else because an alarm in your phone went off and yujin stood up. if you give in to your delusions enough, you could see that yujin was smiling a little bit because of your statement.

you turned off your tv and followed yujin to the door, where she was putting her shoes on and swiping her keys from some hooks on the wall. now you finally have use for that thing. after you’ve grabbed your bag, yujin opens the door for you and you walk out, relishing in the feeling of the chill morning air kissing your skin as you walk down the steps of your front porch. yujin locks your door and tosses the key over to you, and you catch it effortlessly, to which she whistles at. apparently, that was attractive.

yujin was to drive both of you to the gym today. it was a thing she always did on wednesdays. you don’t know why wednesdays specifically but they happen to be your lazy days so you were thankful for the sentiment. you settled yourself in the passenger seat and managed to snatch the bluetooth connection before yujin did, sticking your tongue out at her when you did and earning an eye roll.

when yujin pulled out of your driveway, you were so sure that it was just going to be another day with her. but you should’ve known otherwise when she put her hand on your thigh and caressed your skin with her thumb as she drove down the road with a small smile on her lips.

at that time, you didn’t know yet but yujin was going to make your week significantly better!

you started your usual routine when the two of you arrived in the gym: make small talk with the receptionists and umji, greet everybody around, head into the locker rooms to change into your usual workout attire, and start your day! and see, for the most part, the usual was what happened, you know? you and yujin did the same exact workouts, never left each other’s side as well as sights—even when yujin’s friends arrived the two of you were attached by the hip! gaeul had been smiling strangely at you the entire time she talked with you for a bit, so that made you believe yujin’s statement about gaeul being weird at times. and from behind gaeul, jiwon and wonyoung were up to their usual will-they, won’t-they antics. totally normal.

it wasn’t until some guy somehow gathered the courage to strike up a conversation with you when things took a weird turn.

you knew your way around men in the gym but for the first time, none of your evasive maneuvers were working. laughing and smiling did you not work, you actually had to say more than a few words to the guy. excusing yourself out of the conversion did not work because when you came back from whatever lie you told, the guy talked to you again! not finding it in you to avoid him any longer, you opted to stand there and listen to him go on and on about his adventures in this gym. of course, you had to share your stories too and you know what, you were actually starting to get interested in the topic.

the guy seemed genuine enough. no ulterior motives whatsoever. all smiles and eyes focused on yours the entire ti—did he just touch your waist?

ah, it was too good to be true. you should’ve known men were never going to be normal about you!

yujin apparently did, however, because the moment she saw you freeze up, she bolted to where you were standing and swatted the man’s hand away from you.

“whoa, easy. i was just—”

“just being a massive pervert. i know. screw off, fucker.”

yujin doesn’t even wait until the guy walks off to drag you somewhere far away from him. she glares at anybody who stared at the scene and stopped walking when the two of you reached the stepmills. she was fuming—eyebrows furrowed deeply, her normally soft brown eyes looked at you harshly. a heavy sigh escaped her lips and she turned her head away. it wasn’t until you tilted your head to look at her that she finally calmed down. from the distance, you could see her friends staring. wonyoung was seemingly surprised at what went down, jiwon was clearly concerned for you, and gaeul looked like she was already planning on poking holes at the guy’s tires as soon as she could.

yujin huffs, pouting at you. “that’s why you should stop entertaining the people here, unnie.”

“i entertained you. look where that got me.” you said with a smile. and well, yujin was smarter than she looked! she knew exactly what you meant; how you were aware of her intentions then and now. suddenly, her mouth was clamped shut. she looked guilty, almost ashamed. but she doesn’t say anything after that, merely muttering about punching that guy before continuing on with her routine. you don’t know why, but it was awkward after that. yujin couldn’t seem to bring herself to look at you but when she did, you could feel it. you always get chills, the good kind, whenever she stares at you so you just knew.

eventually, you wanted a break. so you briefly stepped outside for some fresh air. the breeze felt cool against your damp skin. you stretched out your sore legs and arms, you were surprisingly already tired despite having only been working out for a short while. clear proof that talking and being around men was an energy-drainer. maybe you should really take a page out of yujin’s book and pretend that they don’t exist entirely. speaking of yujin, you wondered if yoju actually hurt her in some way. it’s not like you were condemning her for having ulterior motives when she first talked to you, you did feel and were thinking the same things for her back then. so in conclusion, both of you were perverts.

“unnie.”

a blueberry yogurt juice box, your favorite among the variety of flavors they offer in the gym vending machines, enters your vision. you turned your head and there yujin was with a bashful look on her face.

“that really bummed me out. we should just call it a day.” she says, pouting. you accepted the juice box, chuckling slightly at her for being so cute.

now, you don’t know what came over you but at that moment, yujin looked so damn delicious with her protruding muscles, her bangs sticking to her forehead, and droplets of sweat running down her neck that you couldn’t help but be brave. you stood closer to her, one would say almost too close, and tilted your head, eyes flickering down to her inviting lips. “should we hit the showers then, yujin-ah?” you asked and god, you were practically eyefucking her.

yujin doesn’t seem fazed by your sudden confidence at all. she merely takes a cautious sideways glance before leaning close to your ear, lips dangerously close to your neck, making you shiver. “i was wondering when you were going to let me fuck you, unnie.” she whispered, smirking because she knew just how you were feeling considering you slightly pushed her away and covered your face with the juice box she gave you. she was too darn handsome. it was bold of you to think that you could make her feel flustered when she basically knows what always works with girls.

you take yujin’s wrist with your hand and she allows you to drag her back inside the gym. you avoided stopping for small talk. actually, you avoided looking at anybody else entirely! and as soon as the doors to the changing rooms closed, yujin’s hands were all over you. you grabbed her shirt, pulling it over her head before you kissed her. she presses your back against the cool metal lockers, making you whimper and giving her the perfect opportunity to insert her tongue inside your mouth. she unzips your thin jacket and pulls up your top along with your bra, her hands immediately getting busy with your breasts.

you bucked your hips against her pelvis desperately, but yujin ignored you. opting to break the kiss and take one of your nipples inside her mouth instead, running her tongue over the hard bud and sucking on it while pinching and squeezing the other one. but it doesn’t take long for her other hand to slowly make its descent down your body, feeling your stomach a bit, before slipping inside your leggings, teasing your sensitive clit through the fabric of your panties.

“mhmn… yujin.. more.”

that was all yujin needed before she stripped you down to only your panties. she takes a minute to observe your body, eyes shining with pure lust as well as appreciation before tugging you towards the showers. fortunately enough, it was empty so yujin took you to the nearest stall and didn't waste any time before pinning you against the door and kissing you again. you pulled off her ponytail and threw it away to some unknown corner, letting her gorgeous hair cascade down to her shoulders. you cupped her cheeks with your hands, pulling away slightly and pecking her lips softly, earning a giggle from her.

you pecked her lips again, and again, and every time, she would smile. yujin kissed you again, she was more gentle and careful this time… until she nearly ripped your panties when she pulled it off of you. “get in, unnie.” yujin said, giving you a kiss on your cheek and a pat on your ass before nodding her head towards the shower. yujin starts stripping herself down while you turn the faucet on, sighing contentedly as the cool water meets your skin. goosebumps grow all over your skin, but were completely erased when you felt strong arms wrap around your body.

yujin was warm. from the way she smiled at you, talked to you, treated you, kissed you, and now, the way she held you. her hands explored your body as she softly kissed your neck, “have i told you how perfect i find you, unnie?” yujin runs a hand across your breasts, glides it down to your stomach and all the way down to your inner thighs before making its way around your thighs and back up your waist.

“you’re kind, you’re sweet… you’re exactly the type of person people would wanna bring home to their parents,” yujin turns you around, moving your wet hair behind your back and smiling at you when you cupped her cheeks again. you pull her closer, hungry for her lips. it was as if all you wanted to do was kissing her until you were sick of it—as if you would get sick of it though. “and fuck, you’re so hot.” yujin bites her lip before finally giving you what you had been craving for. this kiss had the equal amount of tenderness and passion, both immediately getting taken over by pure desire when yujin’s lips start leaving a trail of kisses down your jawline to your neck.

warmth blooms across your chest as yujin takes her time leaving carefully-placed marks all over your skin. sucking and licking wherever she felt was perfect until she eventually leaned back to stare at her work, “beautiful.” and she continues to use her lips as she lowered herself to the ground, leaving a few hickeys on your chest, your breasts, your stomach, and finally, your thighs.

“open up for me, unnie. i want to see you.” and so you do.

yujin licks her lips before kissing up to your inner thighs. you couldn’t help but put a hand on her head, staring down at her with pleading eyes, desperate for her to just get it over with and make you see the stars. you were lucky enough that yujin couldn’t find it in herself to tease you. surely after months of wooing you and playing with your head she would be exhausted from all the games, and thankfully she was! yujin leans in and gives your pussy one long lick, making you whimper and grip her hair just a little bit tighter. you could see her smile at you before she proceeds on eating you out.

clearly, this wasn’t yujin’s first time. maybe on her knees, yes. she, as well as her friends, have told you countless stories of how addicted she really was to eating pussy and you could see it clearly here. yujin, with her eyebrows furrowed in concentration and eyes shut tight while she makes a mess of her pretty face by slobbering all over your cunt. like a fucking dog. you pull and tug at her hair, unable to do anything else due to the amount of delight hindered your ability to think.

“mhm.. ha.. unnie’s pussy is so—ah, delicious.. i knew it.” yujin opens her eyes just to see the look on your face. all flustered and contorted with pleasure. you covered your mouth with your other hand just to make sure that you aren’t too loud. yujin didn’t like that, apparently. she sneaks one of her hands in between your thighs and leans back a little, licking your wetness off her mouth before shoving two fingers inside your cunt. you choked out a moan and you couldn’t even say anything to yujin about it all because she immediately wraps her lips around your sensitive clit.

“ahh..! y-yujin!” again, you clamped your mouth shut, opting to muffle them at the very least! the younger girl’s mouth and fingers surprisingly well together—yujin’s digits hitting all the right spots inside your walls while she flicks, sucks, and nibbles on your clit. having no choice but to uncover your mouth and put both your hands on yujin’s head, pushing her in further and practically grinding your hips on her face.

“please, please, baby.. keep going…! m-more..” you were desperate for release. yujin could see that much. she stares and stares while she eats you out, so fucking turned out with the way you were begging for her—almost screaming for her despite what may come after.

(this was exactly what yujin wanted from day one. to have you screaming her name where everybody else can hear you just to prove that nobody, no other man and even woman, can make you feel as good as she can. now she’ll prove just how much she can make you feel. something beyond pleasure that only she can give you.)

“mmphf…! fuck, more… more, baby..!” and so yujin increases her pace, pulling her fingers out all the way and almost painfully plunging it back deep inside you. now you were screaming, having lost control of your composure long after yujin flicks your bud with her tongue and sucks on it desperately. you were pretty sure that you were hurting her with the way you gripped her hair tightly, but you knew that if you let go, you would fall over. your knees have turned to jelly, and it was only yujin’s body that kept you standing up.

“come all over my face, unnie…” yujin says. she takes out her fingers and replaces it with her tongue, once again making you moan loudly while she relishes in the taste of your cunt. fuck, yujin was so in love with how sweet you were, just the perfect flavor to satisfy her mouth. yujin makes out with your cunt, occasionally running her tongue over your clit and dipping it inside your hole, moaning as she did so. god, she could literally come just by eating you out alone. yujin has never been this addicted—you could probably pee on her and she’d drink it up! and she really would.

it takes another flick of yujin’s tongue on your clit before the pressure in your lower stomach finally breaks. yujin held your thighs tightly as you came, lapping up your cum diligently while she held you up. you grind your cunt against her mouth, still desperate to feel her mouth on your even though you were in the middle of your climax. yujin herself could not help but start licking again, her mind completely clouded with desire. now the only thing she wanted to do was make you come over and over again until both of you were exhausted out of your minds.

she wanted to see you lose every bit of control in your mind for her, and only her. and yujin plans on doing that very same thing today. right now.

much to your dismay, yujin pulls away from your cunt, not before giving your clit a sweet little kiss, and slowly stands up. she was only the slightest bit taller than you, but her dark eyes, alluring lips, and all the little droplets of water that ran down her toned body, you couldn’t help but go a little crazy over it all. yujin pulls you in, wrapping her lips around yours and immediately sliding her tongue inside your mouth, letting you taste a little bit of yourself before she presses your back against the wall.

while kissing you, yujin sneaks a hand in between your legs and starts massaging your clit in circles, relishing in the sounds of your muffled moans. you started moving your hips, grinding slowly on her hand. putting a hand behind your thigh, yujin pulls your leg up, wrapping it around her hips. she starts teasing your entrance, only running her fingertips over it rather than doing what you clearly wanted her to do. you whine in her mouth, detaching your lips from hers and looking at her with pleading eyes, “please, yujin. i need you.”

and how could she say no to you? yes, yujin would love to have you beg and beg for her but that was an experiment for later. right now, she wants to ruin you and have every damn person in this place know that the only girl that can take you to the stars is her.

yujin plunges two long fingers knuckle deep inside your pussy. she moans at your warmth, finding the way your tight cunt sucked her fingers in so attractive. pulling in and out excruciatingly slowly just to feel your cunt clench around her digits and soak them with your slick. “fuck, unnie… how are you so tight?” yujin chuckles. her eyes shined with hunger as she watched her fingers disappear inside of you.

“don’t tell me you’re a virgin… i’ll really ruin you if that’s the case—fuck.” yujin curls her fingers inside you, making you release a whiny moan before you cover your mouth shut. your face flushed while yujin laughed at you. you clawed at her back while she spread her fingers inside you before pushing them in even deeper. you didn’t even know if that was possible. she starts hitting the spots not even your toys are capable of reaching, her pace and force now increasing at an alarming rate, making you unable to say anything but nonsense.

you never really told yujin about your adventures in bed with other people. you weren’t a virgin of course, but what she didn’t know was that… you weren’t used to this. you knew a thing or two about being the one that’s doing the fucking, not the other way around! you somehow always had ways to be on top of the people you hook up with but the idea of letting yujin make you feel real pleasure was too enticing to give it up.

(oh, you have no idea how that information might’ve rewired yujin’s brain entirely. her obsession towards you slowly grew day by day—imagine what would have happened in here had you made her aware of that fact? she would make sure that you couldn’t walk.)

you hugged yuin by her neck tightly, hiding your face on her shoulder. a string of incoherent words leave your mouth as she steadily fucked you. it was reaching to a point where it almost hurt, but you buck your hips to her rhythm anyway, never having enough. yujin grabs your waist with her free arm, “up.” she said, tapping at your lower back. yujin momentarily pulls out of your cunt to wrap both of your legs around her waist, carrying you while still having you back up against the wall.

this time around, yujin doesn’t ease you into taking her fingers. as soon as you were comfortable, she shoves her two fingers right back inside of you and fucks your cunt relentlessly. she merely watched your face while she fucked you, grinning sickly at the way you threw your head back and gave her a full view of the mess she made on your neck.

you were so beautiful like this—the perfect little piece of art that yujin can ruin as she pleases.

“nnngh… god, yujin—ah!” you dug your nails on her shoulders, leaning forward and pressing your forehead against hers.

“mhm, unnie’s such a good girl. it’s overwhelming isn’t it?” yujin whispers, tilting her head and leaving a quick kiss on your lips. “but you’re still taking it so well… fuck.” yujin increases her pace yet again, now fucking your cunt like it was some toy. you hug her tightly, screaming and whining at the amount of pleasure that took over your senses. it was so hard to comprehend it all, and now you believe all of the ridiculous stories her friends told you about her hookups. the thing that ahn yujin does best is sex, and good god was she fucking you stupid.

“y-yyujin… yujin…! yujin, i’m—mmgn…!”

“uh-huh. you’re coming, unnie? i got you. come. come.”

but she doesn’t let you. not immediately. yujin catches one of your nipples with her lips, sucking on it while she simultaneously fucked your cunt. she slows down her pace just by a bit, focusing her attention on your nipple just to truly make you lose your head when she thrusts inside you again. it all felt too much eventually. her fingers, her lips, her tongue, and all the things she made you feel.

“ahh..! ah—yujin-ah, yujin..!” and then the knot in your stomach breaks for the second time today, your cum spilling all over yujin’s stomach. she shushes you as you come, kissing your shoulder softly and pulls her hand out of your pussy just to hug you tightly, caressing your back while you come down from your high. your head collapsed on top of her shoulder, and a few tears squeezed out of your eyes due to the slight pain that you felt in your groin. no doubt you couldn’t walk correctly after this. you just hoped that you could look everyone in the eye like nothing happened. not that you’d want to hide this from them anyway—yujin made you feel too good. that was something to boast about!

eventually, your breathing reverted back to normal and you lifted your head up.

“you okay?” yujin asked. she smiles as you hold her face in your hands, admiring every single one of her features for a good minute before pulling her in for a sweet kiss. your feet were back on the ground again, but you leaned on yujin’s body for support while the two of you made out under the cold water. only your soft moans, hushed whispers, little giggles, and the smacks of your lips being heard other than the running water.

“you’re not going to ignore me after this, right?” you asked after pulling away.

yujin looked at you incredulously, “unnie… i have a crush on you. why would i do that?” she said, pouting. adorable, but you still had doubts in your head considering her reputation! “especially now that i know how good your pussy tastes.” she joked, licking her lips.

you pushed her away with a smile, “perv.”

you weren’t able to get far before yujin pulled you in again, kissing you and laughing as she did so, making your heart jump several beats as it always does whenever she’s around.

of course, this was just another example of the local gym’s infamous ‘bimbo’ womanizer ahn yujin getting whatever she wants. except this time, she gets something more, something better and something real.

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