Bullet Train

“Unnie takes the best photos, doesn’t she oppa?” Yuna says as she shows you the pictures that Lia took of her on the platform.

“Mhmm” You mutter as you try to get some sleep. Though with Yuna trying to show you the pictures along with the white noise from the bullet train travelling at an ungodly speed, that was proving to be difficult.

“Oppa! You’re not even looking at them!” Yuna says with a pout.

“I’m trying to get some sleep, Yuna.” you reply to her cries. “Considering you basically kidnapped me in the middle of the night for a trip to Japan.”

“Oh boohoo. Your favorite client pays for your ticket and accommodation to bring you along to Japan! What a travesty!”

“It’s not that I don’t appreciate this, Yuna. It’s just this is the first week off I’ve had in awhile and I already had plans.”

“Yeah, right. Plans.” Yuna scoffs. “We both know that means working out and then crashing on the couch for the rest of the day.”

“Hey! Don’t knock it ‘til you try it.”

“Come on. You know you would have to be crazy to say no to a free Japan trip!”

“Yeah, you’re right.” You finally relent. “Though seriously, what was the point of bringing me along? You weren’t going to miss any workout sessions anyway, and I know you’re not going to exercise on vacation.”

“Would you believe me if I said it was out of the kindness of my heart?”

“Hell no.”

“Fair enough.” Yuna says. “You’re right, though. I do have another reason.” You wonder what she means but then you see her eyeing up your crotch.

“We can’t.” you whisper. “We’re in public.”

“That bulge in your pants says otherwise.” Yuna says as she sneaks her hand under the blanket that was covering your body. She reaches for her goal as she squeezes your hard on.

“Yuna!”

“You’re the one that’s already rock hard.”

“Only because you’ve been parading around your midriff.”

“What? Can’t a girl show off the fruits of her hard work?” Yuna says with a smug grin. “Besides, I always knew there was a reason for you to make me focus on my ab workout. You didn’t think I’d find out that mine’s your favorite, huh?”

This fucking girl. She knows just how to push your buttons. But you're stronger than this. Stronger than her. You’re older. Wiser. You won’t allow yourself to become her own personal sex to–

“Meet me in the bathroom in five minutes.” you whisper as you stand up and shuffle out of your row. Yuna smiles as you walk towards the bathroom. 

Fuck it. You’re weak and her sex toy. Though maybe that isn’t such a bad thing.

Five minutes pass by, enough of an allowance for people to forget that you were there first. Not that there would be anyone there to remember. The car was surprisingly empty, save for you, Yuna, Lia, and one of their managers. You hear a knock on the door, a signal that it’s her. Despite the empty car, she quickly sneaks in to avoid any attention. She stares at you seductively, knowing full well what was about to happen next in this enclosure.

That’s how you found yourself in your current situation.

Yuna bending over, facing the mirror. Her hands gripping the sides of the sink. Her sweatpants and underwear were pooled on the floor around her ankles. Even in this position, she asserts her dominance over you as she looks at you seductively through her reflection. A smirk adorns her face, even as she bites her lower lip to keep the moans inside. Because even if you were the one fucking her right now, you fully understood that you are a pawn in her hands. And right now? She’s playing you like a toy.

Your own pants also pooled around your ankles as you stood behind Yuna. Your fingers digging deep into the soft flesh of her perfect waist as you hold her down while you rock your dick into her pussy. Her body shakes with every time your hips meet, a ripple visibly going through her figure from the force your thrusts. 

You eventually give in to the temptation, letting your hands slither under Yuna, going up her body and sneaking under her top to play with her mounds. The added stimulation proves too much for her, as a moan finally escapes from her mouth. One of your hands immediately retreats from her chest, going straight to her mouth to cover it and stifle her moans. To be fair, you do. But it’s hard to stifle your own when she starts kissing, licking, and biting against your palm.

It doesn’t take long before the two of you get close to your peaks. Granted, it was never really hard for you when you’re fucking Yuna. It’s Yuna of all fucking people. However, there was something more right now that was getting you there a lot quicker. The idea of doing it somewhere you’re not supposed to. The idea of fucking a world famous idol in a public toilet on Japan’s bullet train. The adrenaline rush from the thought that you could get found out at any moment by some lucky passer-by that needed to take a leak. The taboo of it all drives you fucking crazy. It makes your hips start snapping against hers even faster, driving your dick deeper and deeper into her. Your own moans start to escape. The familiar burn in your gut starts to return, signalling your impending finish.

You lean in close to Yuna’s ear. In between moans, you manage to whisper a warning.

“Yuna, fuck, I’m close.”

She responds by gripping your wrist, the one on the hand that was stifling her moans. She lifts your hand off her mouth, a moan escaping before she replies.

“Fuck, me too.”

“Where?”

“Don’t you fucking dare let any of that go to waste. I want it inside. All of it.”

She makes a compelling argument. Your hand escapes her grip, retreating back under her top and playing with her breasts again. Primal instincts start to kick in, making you bite her shoulder through her clothes. You start pumping into her at a breakneck speed, each thrust pushing her harder against the sink. Neither of you were trying to stop your moans anymore, you could care less if the whole train could hear. A storm of moans, grunts, whimpers, and expletives fill the small confined space. You could see her face contort in pleasure through her reflection, but her eyes remain glued to yours. It only takes a few more moments before all the sensations and stimulations come together, bringing you both to your peaks.

When you feel Yuna’s inner walls start to spasm and contract around you, you give her one last deep thrust before fully burying yourself inside her. Her climax starts first, with Yuna letting out a long moan that turns into a silent cry. Her body arches away from you and into the sink. Her knees and legs go weak, nearly making her fall if you didn’t hold her up. Her walls spasm even more around you, with her juices crashing against your skin.

Yuna’s climax brings out your own, letting yourself go on the first contraction of her walls. While buried deep inside her, your shaft throbs with every stream of cum you shoot into her waiting womb. All of your muscles tense up. You can’t help but grunt out of pure pleasure, especially with her walls still milking you for all that you have.

Your shared high lasts for a few minutes, with both of you fatigued and bending over the sink. You held Yuna up and close to you as the strength still hasn’t returned to her legs. The storm of moans that filled the enclosed area is now being replaced with pants and whimpers as the two of you recover. Eventually, her inner walls finally slow down and the feeling in her legs finally returns. You feel yourself finally calm down after emptying everything you had into her.

For a few moments, the two of you stay still while trying to regain your composure. When you finally do, you look up to the mirror and find her staring straight at you. The second your eyes meet, she turns her head towards you, pulls you in, and captures your lips in a passionate kiss. She starts maneuvering her body, spinning around making you slip out of her. She ends up facing you, arms wrapping around your neck while your hands gravitate to her waist. She was controlling you, her kiss fueled by a passion that could spark an immediate second round. Unfortunately an hour in the bathroom might be cutting it. 

Yuna finally pulls away, and a smile forms on her face as she catches you at a loss for words.

“That was… uh…”

She puts up a finger against your lips to keep you from talking anymore.

“Great. That was great.” she says with a smirk. “Your personal slut enjoyed it too. And she’ll only do this type of thing for you.”

Again, you're speechless. But when you glance towards your watch and realize you’re about to hit an hour, you finally find some words to say.

“We should… uh…”

“I’ll go out first.” Yuna takes control of the situation again. “Help take the attention away from you when you leave.”

“Yeah. Alright.”

Yuna goes out first. After a few minutes, you follow her out, make a quick detour to the food car before going back to your seat, a desperate play to lower suspicions. You take your seat beside Yuna, both of you wearing grins as if you got away with the perfect crime. Lia decided to shatter that perception.

“You both know that we could hear you from here, don’t you?” Lia says with a smile. 

You and Yuna could do nothing but laugh. You pull the blanket back up over you, finally ready to sleep, but Yuna seems to have other plans. She brings out her own blanket before grabbing your wrist, guiding it under the cloth towards her crotch. You give her the side eye before she sneaks her hand under your blanket, grasping your length and stroking it back to life.