As the days fly by, you find yourself missing Binnie - the two of you exchanged texts regularly, but have recently fallen off a little due to her busy schedules. But on a random Monday morning, you receive a text from her:
Are you free today? Drop by my dorm later, I have a present for you :)
You let her know you are and she texts you the location of Oh My Girl's dorm. You wonder again at how lucky you are - you get to know where a girl group's dorm is! You get back to work, hoping to finish up as soon as possible so you can head over. You rush out of your office and make your way there, but when you knock on the door there was no response.
Hey, I'm here but no one answered the door?
Oh, I'm still outside, you can let yourself in, there's a key under the mat. My room is the last one down the corridor, you can make yourself comfortable there ;)
You find the key under the mat and quickly let yourself in. You briefly take a look around - the living room was big, but also filled with all kinds of clothing and shoes, guess that's what happens when you have 7 idols living together. You see a hallway with multiple doors - that must be where the rooms are at. As you make your way down the hall, you couldn't help but hear a moan as you walk by - a door on your left was left slightly ajar, and the moan came from there. You wonder if this was Binnie's present for you, so you chanced a glance, and what you saw made your jaw drop.
The athletic legs and naked round ass of Oh My Girl's main dancer Yooa was staring right at you! She had a dildo in one hand and was humping herself on the bed, impaling herself repeatedly. That scene itself would make any man hard, but what blew your mind even more was what she was doing with the other hand - her other hand was holding another dildo, trying to push and penetrate her ass! As the angle was awkward, she wasn't able to get much of it in, but she seemed to be enjoying it nonetheless.
You silently thanked Binnie a million times over for this gift, and entered the room.
"Hey! Who are you?!" Yooa yelps as she quickly tries to cover herself, but not before you get an eyeful of her tan and slender body. Her face is flush from both the pleasure earlier and now the embarrassment at being caught. Her eyes roam your body, widening when she sees your erection through your pants.
"Oh, I saw your pictures, are you Binnie's new boy? Come to have some fun? That's great, come help me out." she throws off her covers and you get a good look at her body, laid bare for you. Sweating with her exertions pleasuring herself, she looks like a doll come to life - her pretty face covered in sweat, her breasts a perfect handful to grab on to, her washboard abs honed from many hours of dancing. Her waist is so thin, but her hips so tantalizingly wide and ready to be gripped and fucked with, culminating in a pair of statuesque legs. You could only wordlessly nod as you walked towards her.
"Come help me, I always like to get fucked in both holes, but the members never want to help me!" Yooa whines as she hands you a dildo. She begins impaling herself again vigorously, pumping her pussy at a brisk pace. That leaves you with only one hole - you watch in wonder as her asshole pulses, gaping a little due to being played with earlier. You hold onto her hips and begin pushing your dildo in, drawing out a long moan from her.
"Ohhh that's it, that feels so good!" she exclaims as you bury the dildo in her ass. As you begin using the dildo on her ass, Yooa's thrusts into her own pussy grow more and more erratic. Her moans get louder and louder, until she finally freezes up and screams into her pillow as she cums. You find yourself struggling to pull the dildo out as she clamps down on both dildos lodged in her, so you let go and just watch as her body rides the waves of pleasure going through her. She collapses onto the bed on her side, and you slowly pull both dildos out, earning another groan from her.
"Thank you, I needed that so much, I could never get it in me that deep myself." she smiles as she recovers from the intense orgasm. "I should reward you for that!" She grins as she reaches towards your belt, undoing your pants and fishing your cock out. She begins with a handjob, but soon that is not enough for her, and you are treated to the sight of Yooa wrapping her rosy lips round your cock, sucking you like a popsicle as her tongue plays around your shaft. She takes more and more of you in her mouth, eventually taking your whole length in her - the inside of her mouth feels heavenly as she deepthroats you. Having watched her pleasure herself earlier, and helping her drive herself to climax, you are so close yourself and you try to tap her head to let her know, but she seems to ignore you and keeps going, giving you the sloppiest blowjob of your life.
"YOOA FUCK, ARGH!" you shout as you explode in her mouth. She pulls away from you as you try to stay standing, and to your amazement she has swallowed all of it, even opening her mouth as she shows you your handiwork before cheekily swallowing that last mouthful of cum. She kisses the tip of your cock as she gets up, drawing another shudder from you.
"Mmm you taste good..., I wonder how it would feel elsewhere in me?" she remarks. Her gaze is seductive as she gets on all fours and turns her back to you, giving you an open invitation. The sight alone makes you almost ready to go again, but you decide to play with her first. You kiss yourself up her toned legs, causing her to fidget with anticipation as you get to her thighs and move further up. You give her pussy a lick, drawing a moan from her, but as you prepare to play with her pussy, you hear the only phrase that would make you forego that.
"Higher up, please?" Yooa's tone is begging, but full of lust. Who knew Yooa was such an ass girl? You begin by wetting your fingers on her pussy, before swirling them around her winking asshole, teasing her before you dip into her forbidden pleasure hole.
"Oh god, please more!" she begs as you play around some more, finally sticking a whole finger into her ass. Your other hand plays with her clit and pussy as her hands scramble between trying to keep her moans covered and gripping at her sheets. You end up sawing a finger in and out of both her holes as Yooa can only barely keep her ass in the air, rocking against you in mindless pleasure.
"O-Oh my god! What the fuck!" she yelps as you decide to be adventurous and replace your finger with your tongue, licking around and in her ass as you give her the rimjob she never knew she wanted. You drive Yooa crazy as she can't decide between bucking her ass up into your face or trying to push back and drive your fingers into her pussy deeper. She is so far gone, no longer considering anyone else that may be in the dorm, wailing her pleasure for everyone to hear. "I'm cumming, I'm cumming! YOU'RE GONNA MAKE ME CUM!" She drenches her sheets as she squirts hard, a stream of girl cum erupting from her, splashing against your hand. Her body shudders as her screams dies away, her pleasure only evidenced by the contractions wracking her body, her holes clamping down on your fingers and tongue intensely before relaxing as she collapses onto the bed.
You're harder than a rock by now, and you quickly discard the rest of your clothes before you pull her up by the hips, ready to fuck her. You reach out to one of the dildos, ready to double Yooa's pleasure as you take her, but her hand stops you.
"Wait, check the drawer, that will make it more enjoyable for the both of us." curious, you reach over to check the nightstand by her bed, and to your excitement you notice lube, and several beads connected by a string.
"Anal beads?"
"Yes, like I said, the members never want to help me, and those are harder to use than the dildo. Please?" how could you not help her out? You coat the beads with the lube, and slowly slide them one at a time into her ass.
"Oooh that's so good, mmmmm...." Yooa seems like she's barely there with you as you play around with the beads, pushing and pulling them in and out of her with a pop. But you've waited too long, you line yourself up and thrust into her pussy for the first time.
"OH FUCK" you both groan loudly from the pleasure. You quickly set a fast pace, gripping her wondrous hips tightly, far too horny to care if she's adjusted to your size yet. Lucky for you Yooa is so wet from her earlier orgasms that your rough pace is pure pleasure for her, your cock gliding in and out of her smoothly,her pussy lips gripping you tightly every time you pull out, coating you in more of her juices. To Yooa she never felt more full than right now, a real cock in her pussy and beads in her ass. Deciding to mess with her further, you slowly but firmly begin pulling the beads out of her, earning extra loud yelps from her as each one exits with a pop - you see what she means by enjoyable too as you can feel the beads moving in her against her pussy wall, creating a unique sensation for you. With a wicked idea you take the remaining beads out swiftly with one strong pull.
"FUCK, I'M CUMMING IN YOU!" The swift rubbing of the beads against your cock through her ass catches you by surprise as you nearly buck over from the pleasure, immediately painting her pussy with your cum.
"Ooooh CUMMING, CUMMING, CUMMING!" Yooa's low growls quickly turn to screams as she immediately orgasms from the simultaneous pleasure of the beads being ripped out and her pussy being filled with hot cum. Both of you can do nothing but hold on as the jolts of electric pleasure travel through your bodies together, the two of you seemingly frozen in position, stuck together like you would never pull out. You collapse on top of her onto the bed, the beads discarded somewhere, forgotten in the throes of pleasure. For the next few minutes only the harsh breathing of the two of you can be heard as you recover from your primal coupling - you pull out of her, a copious amount of your cum leaking out, further staining the bed.
"Oh my god, that was..." Yooa struggles to find words to describe that experience.
"That was amazing." you complete her sentence. You thought you were done, making a mental note to properly thank Binnie for this gift, but you feel a soft hand rubbing your cock, still slick with Yooa's juices.
"You know, there's still one more place you haven't filled with cum..." you couldn't believe your ears. You weren't sure if you could get it up again, but the idea of fucking Yooa in the ass has your cock rapidly growing hard again.
"Are you sure?"
"Yes, I haven't had a guy there, only toys, but since you helped me so much already, could you help me there too please?" your cock is now at full mast, excited at the chance to pop the cherry princess' anal cherry. You make to get Yooa on all fours again, but she throws you a curveball.
"Can I be on top? I'm nervous, so I want to take it at my pace."
"Of course, however you want it."
Yooa grabs the lube and begins covering your cock with it, making you moan at the impromptu handjob. As you lay back down, she grabs on to your shoulders for stability, and you hold on to her waist, watching in awe as she begins lowering her ass on to you. Feeling your tip enter her ass, it takes all your willpower to not drive her down onto your cock. You feel your tip enter her as she lowers herself on to you agonizingly slowly. You feel her clench on your cock, and then with a pop you get through her tight sphincter as her ass slowly expands to accommodate you.
"Oh my god, why are you so thick?" You feel every inch of Yooa's tight canal as your dick slowly widens her ass. When she finally reaches your crotch she exhales, seeemingly having been holding her breath the whole time. "Oh god, I feel so full, give me a moment." It takes all of your resistance to not cum right there and then as she feels so wonderfully tight and snug around you. Her pussy was already unimaginably tight, but this is on a whole other level.
Eventually she slowly lifts off your cock, before dropping herself back down on you with a moan. You are treated to a delightful sight, her pussy glistening on full display for you, contracting with every descent of her ass on you. Using a free hand you play with her clit, drawing breathy moans from her. As Yooa gets comfortable she increases her pace, lifting up and dropping herself forcefully onto you, letting gravity do some of the work. Not satisfied, you grab her waist, beginning to lift her up as she bounces up off your cock, and slamming her down after, making her fuck herself on you as you buck up at her, pumping yourself into her ass with extra force.
"Oh fuck, I feel so full, so good!" Yooa screams as she fills her ass with all of your cock over and over again.
"UNNNNNGH" Yooa's first anal orgasm is a memorable one as she grunts incomprehensibly and you see her legs shoot out, spasming as you slam her down on you one last time. Her ass clenches down hard on you and her back is ramrod straight, as if your cock is keeping her upright. You watch with pleasure as her eyes roll back in her head and her abs twitch, her pussy contracting repeatedly, spewing her juices onto your stomach. She collapses on you, still trembling at the intense sensations, breathing and moaning heavily in your ear.
"You okay?"
"Yes... that was so much more than what I expected. Now fuck me, I want to feel you cum in my ass." she commands you with a smouldering look in her eyes. You watch with grim satisfaction as she gets on all fours, presenting you once again with her shapely ass. Unable to wait any longer, you take a little bit more lube, liberally coating your cock with it, and with one smooth thrust you take Yooa's ass for yourself.
"Oh FUCK!" she gasps in both pain and pleasure as you thrust yourself all the way into her ass. You begin sawing in and out of her, filling her completely with every pump of your hips. Your hands enjoy themselves, grabbing a handful of her cheeks every pump, leaning over and cupping her breasts occasionally. Yooa is beside herself as the initial shock gives way quickly to intense pleasure, and soon she is pushing back against you, her body actively seeking your cock every time you pull back, bringing more pleasure to the both of you as she meets each and every thrust.
"Fuck your ass feels so TIGHT." you can only exclaim as you stuff her ass again and again, the two of you screaming your pleasure for the whole dorm to hear while the sound of your clapping bodies fill the room. You see her sweaty back flexing and rocking against you, her ass jiggling with every thrust, you hear her moans and screams as you seek your own release - it quickly becomes all too much. You cum for the last time in Yooa's ass, the orgasm running through you like a freight train as you pump her with more of your cum. You vaguely hear Yooa shouting your name as she has another orgasm, but you can't hear much from your blood pumping in your skull. Barely conscious from the intense orgasm, you pull out of her and are treated to the sight of her gaping asshole for a short moment, before you see a glob of white cum trickling out of her ass and over her pussy, dripping down and joining her juices on the bed.
The two of you collapse on the bed, your minds still fried by pleasure. The room smells of sweat and sex, the only sounds that are left are the harsh and irregular breathing of the both of you. You're pretty sure the bed is ruined after what the two of you did to it. After what feels like hours, the two of you get up and get dressed, Yooa wincing a little as she gingerly walks with you to the living room.
"Thank you so much for that, that was everything I wanted and more! I hope you can help me more in the future." she says with a wink.
"Of course, let me know anytime you need... help." you say with a grin.
As the two of you make small talk, you hear the door unlock and in comes Binnie. You quickly go over and give her a kiss.
"Oh hey guys, oppa did you enjoy my present?" she asks slyly.
"Yes, Yooa was amazing!" you say, giving Binnie a tight hug.
"YOOA?! WHAT DID YOU GUYS DO?!" she breaks away from your hug, giving you a shocked glance.
"I- what?!" you break out in cold sweat, was Yooa not your "present"? Then what was? You turn to look at Yooa, but all you see is the back of her as she yelps and dashes into her room.
"No you idiot, I told you to go to MY room, not Yooa's!" she drags you over to her room and opens the door.

"SHE is your present you fool. Now what are we going to do with her... and you?" Binnie whispers to you, her fingers dancing across your chest.
"I won't ask about what you did with Yooa, if you make it up to her. Just look at her, look at the mess she made!" You look at where she is pointing, and to your amazement it is one of her members, completely naked and bound to the bed! You see a vibrator stuck in her pussy, and the sheets under her were absolutely soaked! Was she listening to you and Yooa this whole time? The thought of that makes your dick painfully hard. As you walk forward, you realize she is blindfolded and gagged with a piece of cloth.
"Have fun... I promised her you'd give her a good time, you better live up to that. And after that you better make it up to me too." Binnie says before she closes the door on you. You lean over and take off the blindfold and gag...
You'll need to thank Binnie two million times for today.