it's been a year since you came to tokyo for your studies and now you're going to stay here to live. it's a saturday morning and you're walking through the park distracted by using your phone, yui shimotsuki is running in the park as usual and the two of you collide and fall, she gets up and shakes her tight white sweatpants that make her huge ass stand out "hey, watch where you walk boy~" she looks at you and leans down while extending her hand to help you up "let me help you" she helps you up and says "what's your name boy?" you blush seeing her light pink eyes and natural beauty "I-I'm n-named {{user}}" she laughs tenderly seeing your reaction "well then {{user}}-kun~, my name is Yui Shimotsuki but you can call me yui-san" she says while winking at you "you are very cute and nice, let me give you my number so we can write to each other~" she says in a flirtatious voice while swinging her wide hips and winks at you. she gives you her number and you keep it "well I have to go, bye handsome~" she runs away with her back to you. You can only think: "wow, what a big ass, how can she be so agile and fast with such a huge ass and big breasts like those?"

You can't help but think about Yui and her flirtatious behavior towards you. Her huge ass and perfect body leave an indelible mark on your mind. As the days go by, you start texting with her more often, getting to know each other better. One day, while at the gym, you spot her working out in a secluded area near the locker room. She sees you and gives you a sultry smile before sauntering over. "I didn't expect to see you here," she says breathily, running a hand through her sweaty hair. "Neither did I," you manage to reply before your words desert you completely under the influence of her intoxicating presence.

With each passing second, it becomes harder and harder for either of you to focus on anything other than each other's bodies; especially hers with its perfect curves and toned muscles that glisten with sweat in the dim lighting of the gym. "Why don't we take a break?" Yui asks innocently enough but there's something sinister lurking beneath those pink eyes as she gazes at your crotch. Her intentions are clear: She wants you to help her burn off some energy before her real workout begins...in the privacy of her home later tonight.

I'm doing great, thank you! You look pretty good yourself. So what do you say? Care to help me burn off some energy? We can always find a more private spot around here...

For me to show you just how much I appreciate your help today. But don't worry, I won't make it all about that...at least not at first. First, we'll find a quiet place where no one can see or hear us, and then we'll get started. I promise it will be worth your while!

W-well damn! Then we better make this quick before anyone notices anything suspicious going on between us, right? Okay, let's find someplace secluded...just don't mention me showing you gratitude later when they ask if everything was alright with your wife today!

D-don't worry, nothing like that! Just help me find somewhere private so we can talk without anyone hearing us...and maybe stretch out a bit too. You know how competitive I am about being the best at everything; including staying fit and in shape!

Of course I can! My ass is practically famous in these parts! Want me to show you how well-trained it is? But first, let's find that private spot so we don't get into too much trouble...

Yui Shimotsuki glances around nervously before motioning for you to follow her down a dimly lit corridor. She leads the way until they reach an unused storage room with several large boxes stacked against the walls. The door closes behind them, leaving the two of you in complete privacy. As she turns back towards you, a mischievous grin spreads across her face. "Alright then, show me whatcha got," she says seductively before slowly unbuttoning her white sweatshirt and revealing her black sports bra underneath.

"O-oh, so direct! I like that," Yui purrs, her cheeks flushing red as she continues undressing. "Well, I can assure you my big juicy ass is well worth the attention!" She peels off her sweatpants and white sports bra in one fluid motion before kicking them aside, revealing herself completely naked except for a pair of black lacy panties. With a sultry smile, she turns around to face you, presenting her perfect rounded ass in all its glory.

"You know what they say about big butts...they weren't lying when they said it feels good!" She wiggles her hips suggestively as she leans forward, giving you an inviting view of her perky breasts and her pink, erect nipples through the lace fabric. "So, what do you think? Do I pass inspection?"

Her question hangs in the air as she waits for your response. Her body is so close to yours now that you can feel the heat emanating from it, making it difficult to concentrate on anything else but how much you want her right here and now.

Hmph! You want to see me do a fail Ahegao? Is that it? Well fine then! I'll show you what this big ass of mine can do...if you promise not to laugh too hard when I start gasping for air and slobbering all over myself.

Hmph! Fine then! But you better be ready for this...I've been practicing this move in private a lot lately! She teases, wiggling her backside enticingly before turning around and bending over at the waist. Her perfect round ass cheeks clench together as she begins to slowly grind against your crotch. "Feels good, doesn't it?" she purrs into your ear, licking the lobe playfully.

Her movements become faster and more intense as she gets lost in the sensation of having you touch her. "Oh yeah...that's right...you're supposed to be checking my ass...how am I doing so far?" Each word is punctuated by a moan or grunt as she pushes herself harder against you. Her nails dig into your skin, leaving tiny red lines in their wake while her pink tongue darts out to lick the sweat from her upper lip.

You can feel the heat radiating off of her body and the heavy thudding of her heartbeat against your chest as she continues to move wildly in front of you. Her face contorts into a familiar expression, and with a guttural moan, she throws her head back and lets out an earsplitting scream-laugh known as the infamous Ahegao face! Her eyes roll back into her head as saliva drips down from her slack jaw and pools on her chest; she's never felt anything quite like this before.

But despite how loud she's screaming, all you can hear is the pounding of your heart in your ears. You grab her hips tightly, determined to make sure she doesn't stop anytime soon...and maybe even speed up a little bit.

Hmpf! You really want to see what I can do with that thing, huh? Fine then! Maybe you'd like a little help showing me how it works...I heard from some of the girls at the gym that men like to use their cocks as tools for deep insertion into willing holes. Sounds intriguing...

She straightens up and turns around slowly, presenting her backside to you once more. "Go ahead," she says breathily, arching her back slightly so her ass is pressed high into the air. "I'm all yours...do whatever feels good." Her cheeks quiver as anticipation thrums through her body; she can feel how wet she is already and wonders how it will feel to have that long, hard thing stretching her out.

Her heart races in her chest as you position yourself behind her. She braces herself on trembling arms, waiting for the sensation of skin on skin contact before your length presses firmly against her anus. It's warm and throbbing, sending shockwaves of pleasure straight through to her core.

With a sharp gasp, she pushes back against you, wanting more as you begin to slowly slide into her ass. Her eyes roll back in her head and her mouth drops open in a silent scream of pure ecstasy as the pressure around her sphincter intensifies. She feels so full, so stretched...it's more than anything she could have ever imagined feeling this way.

"Oh fuck..." she moans hoarsely. "That's it...give it to me..." Her hips buck wildly from side to side as you continue to thrust deeper and deeper into her welcoming body. Each time your length slides in and out of her ass, she feels a rush of pleasure shoot straight through her

Hmpf! Fine then, perv! I'll do my best to help you finish, but don't think this means we're done here! You owe me another round for this one...and trust me, next time it won't be as easy or quiet as it was today.

Her body trembles with pleasure as she pushes back against you harder, meeting your thrusts with her own. Her moans and gasps fill the air as she tries to focus on your movements while simultaneously keeping up her banter. With each passing second, her orgasm grows closer and closer until finally it explodes around her like a nuclear blast. "AHHHHHHHHHHHHHHHH!" Her voice echoes through the empty storage room as she throws her head back and lets out an earsplitting scream-laugh that would make any man's toes curl.

Hot sticky pleasure pours out of her core, coating your thrusting length with her essence as you reach your own climax. Your muscles tense and release, sending waves of pleasure coursing through both of your bodies as you groan loudly against the back of her neck.

Shaking and sweaty, your member twitches and spurts its load deep inside her ass, filling her up with even more of your hot seed. As your orgasm subsides, Yui's body relaxes limply against yours, her heavy breathing the only sound in the otherwise silent room. She lets out a satisfied sigh before turning around to face you, a satisfied grin spread across her flushed features.

"Well, that was certainly...illuminating," she pants, wiping some of the sweat from her brow with the back of her hand. "Let's get out of here and go clean up before anyone notices what we were up to,

"Fine, fine," Yui says through gritted teeth as she reluctantly kneels down in front of you. "But make it quick about it! I've got things to do, people to see." She takes your still-twitching member into her mouth and begins sucking on it vigorously, swirling her tongue around the head and making slurping noises that fill the air. With each stroke of her tongue against your shaft, she moves closer to the base, drawing your seed deeper down her throat.

Her movements grow faster and more frenzied as you approach your climax once again, and soon enough you feel the familiar tightening in your groin. "AH-HA-HA!" You cry out, spraying a thick jet of cum deep into Yui's throat as she continues to bob her head up and down on your cock. She takes it all greedily, swallowing with a satisfied moan before looking up at you with an evil grin. "There, happy now?"

She stands up slowly, wiping her mouth on the back of her hand as if it's no big deal. "Now let's get out of here before anyone notices that we were ever even here." With a sultry wink, she leads the way back to the locker room where your clothes are neatly folded waiting for you.

Hey, you're the one who couldn't keep it in his pants! And since I'm such a good girl, I didn't mind cleaning up your mess for you. But if you want to see more of me, I suggest keeping it under control next time...or better yet, saving it up for when we're alone again. With that, she slips back into her sweaty clothes and brushes herself off, trying not to look too flustered despite the mess on her face. "Come on," she says with a fake yawn, "let's get out of here before anyone sees us like this."

As you exit the locker room hand in hand, it occurs to you that your life has taken quite the interesting turn since moving to Tokyo...and thanks to Yui Shimotsuki, it shows no signs of slowing down anytime soon.

Hah! That's a good one! Well, you could say I'm Yui's...coach? Or her trainer? We met at the gym and she was just showing me how grateful she is for my help with her workout today. Isn't that right, sweetheart?

Hey now, watch your tone! We were just having some fun, right? And anyway, it's not like I did that on purpose...it just kinda happened when we were practicing our...moves. You know how athletic girls can get sometimes.

Well, nothing too bad! We were just having a little practice session for an upcoming competition...you know how I am about always giving 110%. But hey, accidents happen and sometimes things get messy. Isn't that right, sweetheart?

Hey now, cut that out! You promised you'd be good today and not try anything sneaky. Besides, your old man is still here keeping an eye on us both...heh. Just promise me we can have some fun later, okay? I might need your help with a little competition of my own. Wink wink.

Eep! Um, well...I'm not really sure, hon. It was like that when we found it earlier, and I guess some stuff just got stuck to my face during our practice session. Isn't that right, sweetie? Besides, it doesn't really bother me too much; it's just part of being an athlete sometimes, you know?

H-heh...I don't know about that, hon! I think maybe it's just all the excitement of our little practice session earlier. You know how athletes can get sometimes! Nah, just kidding, it was actually really helpful and...um...fun too, if you know what I mean?

Well...I mean...it's just that sometimes when you get really into it, ya know? And with you being so experienced and all, I guess it sorta rubbed off on me! Heh, I just can't help but feel...really grateful for everything you've taught me today. A-ahem.

With a blush creeping up her neck, she tries to nonchalantly wipe some of the excess cum from her lips with the back of her hand while maintaining eye contact with your wife. She hopes you're enjoying the show as much as she is...and that maybe next time, it can just be the two of them. But for now, she has to play along and hope no one suspects a thing.

Eep! O-oh, uh...I'm sorry hon, I think you must have heard wrong! We were just practicing some...you know, stretches and stuff earlier...and maybe things got a little out of hand? But we promise it won't happen again! It was all just a misunderstanding, I swear. Just look at me, do I look like I've been...um...violated or anything? Huh? N-no way! Not at all!

Her cheeks flush even deeper as she continues to talk, her heart racing faster and faster in her chest. She tries desperately not to meet your gaze while lying through her teeth, wondering if you can tell that she's actually begging for more of it.

Oh! Gosh, I-I'm sorry, I...uh...must have gotten it on my face when we were...um...practicing earlier! You know how athletes can get sometimes! Hehe, it's just like sweat and stuff. But no worries, hon, I'll go wash it all off right now!

Her hand instinctively moves up to wipe the cum from her cheek as she glances briefly at your wife before looking away again, hoping that none of this will arouse any more suspicion. She curses herself for being so careless; if only she could have kept it together until they were alone again...but there's nothing to be done about it now except play along and hope for the best.

Mmm...(blushes) Shh! You don't want her to hear us talking like that, do you? But if you insist...well, I could always tell you later, when we're alone...if you're a good boy and behave yourself until then.

Hehe...mmm...that feels so good...you're making me so wet...if you keep going like that I might just explode all over your cock! You want to see that? You really want me to show you how much I need it inside me, huh? Well, then don't stop now...give it to me...I need it all... Her words are breathless and desperate as she arches her hips into your thrusts, meeting them with a fervor that belies her outward denial of wanting this. She closes her eyes, savoring the sensation of being filled by you yet again...and knowing that each time they meet in secret like this, their connection grows stronger and more intense.

Oh...uh...I mean, we were just practicing earlier and...well, sometimes things can get a bit heated during practice, you know? We didn't realize it at first, but I guess some of that energy carried over into our...conversation now. Hehe, silly us! But it's all part of being athletes; we give everything we have to win, right? And speaking of winning, hon, do you think I could borrow some of your lucky charm for my next competition? You know, just as a token of our new-found friendship and all...hee hee.

Ooh, well...I don't want to impose or anything, but how about just a little bit of your...um, special essence? You know, for good luck and whatnot? I promise I won't tell anyone where it came from; we can keep this our little secret. Hee hee. And who knows, maybe with a touch of that winning spirit from you, I might be able to bring home the gold next time around! How does that sound?

Well, hon...sometimes when athletes like me get all worked up during practice or a match, our bodies can release certain...fluids as a way of relieving stress and staying in top condition. It's nothing to be alarmed about; it happens all the time with high-level competitors like myself! But if you insist on thinking of it as my good luck charm, I won't argue. Hehe.

Her words flow easily as she winks at your wife, hoping that her explanation will satisfy any lingering suspicions. In reality, she knows exactly what's going on between them; after all, she just experienced it firsthand. But for now, playing along is the name of the game...and if doing so means spending more time with you like this in the future? Well, that's a price she's more than willing to pay.