#personal trainer

You knew it was inappropriate to flirt. So you never did. You were strictly there to exercise. But every once and a while, your mind would wander while you did your morning stretches with him. You'd imagine him coming up behind you while you held the downward dog pose, his hands gripping your hips and pressing you into his clothes cock. The bulge rubbing and pushing into the thin material of your spandex shorts.

You okay?

You snapped your mind out of your current daydream and locked eyes with Changbin who was standing in front of you, confusion painted across his soft features.

“Yeah, sorry. I'm good.” You give him a quick smile and a thumbs up before moving to the next workout in your routine.

Changbin watched as you moved over to the chest press machine. You positioned yourself just like he taught you and placed your arms on either side of the padded bars before pulling in towards your chest. Changbin sighed heavily. This workout was always the most difficult for him to watch. The way it spread your arms open, the way you breathed and whimpered softly at each counted rep. The noises. God the noises you would make were enough to send him into an animalistic grunting mess. He clenched his fists tight as he watched you strain and pull your arms together and then back out.

“Good. That's good. Just a few more. You're doing great.”

You breathed heavily at Changbin's words. His praise shooting straight to your tightly wound core. You hoped that your panting would be disguised as just an intense workout and not from you picturing Changbin praising you like that while you rode him like a goddamn elliptical machine.

You let your arms fall limp as you finished your last set. Changbin smiled at you softly and told you to hit the showers as he did every time. You returned his sweet smile and the two of you made your way to your respective locker rooms. You paused for a moment as you saw a cellphone on the floor mat. You recognized the phone right away and knew it was Changbin's. He was terrible at keeping track of his phone, so you swiftly picked it up off of the floor and walked towards the men's locker room.

Whether it was the high from working out or possible dehydration, you walked carefree into the men's locker room without thinking, and came face to face with your personal trainer. Changbin locked eyes with you, only a dark blue pair of briefs covering him now. He stood frozen, his thumbs hooked in the waistband. You registered his entire form. His chiseled body was glistening with a sweat that matched your own. The muscles in his abdomen twitched and flexed as your eyes roamed over his perfect frame.

Everything in your brain was telling you to leave. To apologize for intruding. To politely bow and walk away. But your body; your aching, desperate, needy body was screaming at you again. Screaming and clawing and begging. You knew you couldn't ignore that screaming for one more second. You started slow, walking towards him with caution. You waited for any sign of hesitation or resistance, but there was none. Changbin's eyes moved down to your feet and watched you walk towards him. An intense heat started to pool in the pit of his stomach.

“You left your pho-” but your words were cut short as he grabbed you by the waist and pulled you into his hard body. The rush of endorphins was making it impossible for him to resist you any longer.

Your tongue tangled with his in a sloppy, messy dance as you pressed your body harder into his. His mouth swallowed up your every moan, his hands moving up your back and traveling into your hair. Your hips moved instinctively into his, desperate for more friction. He made quick work of your clothes and pulled them off in one fast motion. He lifted you up and wrapped your legs around him. He held you effortlessly with one arm and carried you over to the showers. You helped him turn on the faucet and shut the curtain, hoping that the sound of rushing water would drown out some of the noise. But the moment Changbin pulled his cock out of his briefs, you knew that no amount of noise could drown out the sounds he was going to pull out of you. He saw the look on your face as you watched with wide eyes, his cock twitching and bouncing to be inside of you. He smiles proudly at your expression before trailing his gaze down to your entrance. He slid in slow, taking his time to fill you properly. You winced and held your breath at the initial shock of pressure. He was huge. And your body needed a minute to adjust to the size of him. You flung your arms around his neck and buried your face into his chest as he continued to slide inch by inch. Opening you up like a flower, he gripped your thighs and took his time.

“That's it, just a little more. You're doing great.” His voice was low and gruff.

That familiar praise rang through you like a bell and you felt your entire body tense up in the most delicious way.

Changbin could feel you opening up for him. The unspoken invitation to quicken his speed a bit. He didn't hesitate at all, his hips rutting into you faster than before. You moaned out loudly and let your head fall back against the cool wall of the shower tile. He continued this pace, pushing you further into the wall, the sound of water echoing around you. This was the only workout you ever wanted to do. You silently wondered how many reps he would make you do.