leenoracha - Tumblr blog

leenoracha · 2 years

Text

— uplifting

sub!gym boy!changbin x dom!personal trainer!reader

“Personal trainer Changbin” this, “fitness coach Changbin” that, what if you were his personal trainer this time? Changbin can keep up with his workout routine on his own if he wanted to, but what’s the fun in lifting alone when he can lift with your words of encouragement?

🏷 gender neutral afab reader (they/them pronouns, written with a vulva but no specifics), smut, fluff, some crack, crushes/clients friends to lovers, porn with some plot.

🏷 mentions of weight (positive context). unprotected sex, creampie, semi-public sex, oral (changbin receiving), fingering (changbin receiving), headlock, strength kink, lots of teasing, dumbification, praise, degradation mention, changbin and y/n are slightly perverted, no specifics about y/n’s physique.

w/c: 8.7k

a/n: i wrote a thought piece about gym buddy!binnie some time ago but apparently the man himself cannot stop bulking up and working out so i just HAD to write more. this is my first full fic, and yes i drew that piece in the header, so let me know what you think of it through feedback. otherwise, enjoy!

18+ only. minors do not interact.

You never expected your client, the one and only Seo Changbin, to like you this much.

Yes, Changbin; he’s a close friend of your coworker Chris. Just like your fellow gym instructor, he’s outgoing, charming, and confident. Except, he somehow isn’t all of that whenever he’s around you.

He zoned out when his eyes met yours. To say that he was smitten was an understatement. Both you and Chris had wondered where that extroverted man from earlier had gone.

“Changbin?” Chris called his name.

“Oh, sorry.” He attempted to save himself with a laugh.

It wasn’t long until you both formally introduced yourselves to each other. You extended your hand for a handshake but didn’t miss the way his forearm trembled in contrast to his biceps. Even you couldn’t fathom how quick it was for someone to get so obviously whipped.

The man signed up for a membership here on the same day he met you. He had to think about getting a personal trainer because he had done all of the bulking up and muscle toning mostly by himself. He had practically become obsessed with fitness ever since he was told that big muscles suit him best. He loved everything from the newfound confidence, the look of his curves, and the additional strength. He takes full credit for his amazing body, as he should be, and he’s proud of himself.

That sense of pride left him immediately as he “accidentally” wrote your name on the form under “personal trainer.”

“What about me?!” Chris exclaimed. “I was the one who pushed you to work out! Not only did you turn to a different gym, but you also turned to a different trainer?”

“I-I didn’t mean to—well, whatever, I bet they’re a better coach than you,” said Changbin. He cleared his throat in the middle of bickering with Chris.

Your coworker mumbled about how much easier it was to write his other name “Chan” on the form; unfortunately, all you could focus on was how worked up and cute Changbin got as his ears flushed with color.

Changbin glanced at you before penning down additional details on the form. “Y/N, I’m sorry, I didn’t mean to embarrass you. He’s so annoying.”

“It’s no worry really,” you said to him with an amused smile.

Chris let out a huff. “The worst part is you aren’t wrong, Bin. They’re a good choice for you, anyway.”

“Don’t start—”

“They’re not strict, but they’re passionate,” he continued, patting Changbin’s bicep. It tensed up. “Don’t let them down. They love seeing their clients work.”

“I’m not really like that. Don’t intimidate him.”

“You’d want that, though,” Chris muttered under his breath at your defense.

Hearing that made your blood rise to your cheeks out of anger. You faced Changbin to look for reactions only to find his blood flushed through his cheeks too, for very different reasons.

“Trust me, Bin, they’re tough.” Chris flashed the both of you an annoyingly lovely smile. “They have a ruthlessness that you’ll love, dude. It’s…uplifting.”

If Changbin’s face was heated enough, he’d become toast after this new information. He realized that you’re somewhat like him in the sense that you’re just as strong, if not stronger, and more passionate about strength than he is. You weren’t necessarily the fitness junkie that people make you out to be, but you loved strength. Displaying body capability has always been interesting to you. It’s even made its way to your extremely secret list of bedroom turn-ons.

The difference between you and Changbin, of course, was that you’re good at hiding your secrets. He was practically letting the entire world know that he’s interested in you.

The following sessions weren’t kind on Changbin. The first one was an eye-opener itself. It wasn’t because you were being “ruthless” as Chris described, but because he tried his hardest not to fall for you too fast.

Falling in love is one way to put it. He did start falling for everything that came with you, but there was something more alluring about you. Everyone has watched him exert muscle power onto punching his limbs to their limits, but nobody’s seen him exert all brain power into suppressing his thoughts about you.

He spent too many minutes thinking about you. It’s only been two and two nights, but he was so easily awestruck by you. Maybe it’s the way you hold yourself. You stood straight enough to sustain good posture. The stance itself exuded confidence, hiding all insecurities in your system. You spoke as if you demanded and commanded everyone in the room. Your face is always bright. Your build is so fittingly you. Your clothes hugged your body right enough. Actually, on that note, your clothes were probably better off your body—

“What the fuck,” Changbin mouthed to himself, shocked by his train of thought.

That, and your pretty face greeting him took him by surprise.

“Good morning, Bin.”

“G-good morning…coach.”

You couldn’t help but laugh. He barely stepped into the gym, half of his body still outside, and he already seemed to tremble in your presence.

You had to give it to him, he’s one adorable man after all. You already know that he’s all sorts of determined, but his sportsmanship doesn’t end with superficialities. He’s extremely well-mannered. He loyally sticks to his principles. He is old money in a new suit; if that meant sweet musk spritzed on an Adidas shirt. His slightly curly black hair peeked out of a baseball cap. He’s a good sport, but he acted like a sore loser around you. He stuttered as if he forgot how to speak. You wonder, would he forget his name too with your hands around his—

“Uhm,” you uttered, distracting yourself from the sudden intrusive thought. It caught Changbin’s attention too, seemingly snapping him out of his head. You wondered if he was lost in the same set of thoughts.

It took you both a few steps and a few lines of small talk before Changbin was on the floor, on his knees, looking up at you, waiting in anticipation of your next move.

Of course, because he’s literally about to perform push-ups for a fitness assessment. What else would you both think it was for?

“Do as many push-ups as you can. Stop and let me know the moment something aches, no matter how small.” Your voice was loud enough to be the commanding sound between the both of you.

“Got it, coach.”

You leaned in. “Alright. I’ll count. You know the drill: legs straight, hands on the floor, ass up. Clear?”

Changbin gulped. There was nothing malicious in what you said. You’re just reminding him of proper form. He shifted his posture and followed your word.

It didn’t have to be this hard for him, doing push-ups in front of someone whose eyes were hyper-focused on him. He was used to getting stared at while working out. It was almost entirely uncharacteristic of him to break into a sweat without even starting. You were only seated on a bench, legs spread a tad bit apart for comfort, upper body hunched forward to get a good look at his form.

He wasn’t the only one going through the mental circles of hell: Changbin didn’t have to look so cute while struggling. His lips parted as he huffed, the smallest grunts escaping his lips as soon as he reached 25 push-ups. You’ve had many clients before him, some even built bigger than him, but he had a charm to him that was alluring.

Maybe it’s because, despite his strength, he seemed so weak for you. Sitting around and working out shouldn’t be this sexy for either of you.

“Fifty.” Changbin looked up at your count. You peered over at his face.

For some reason, he looked fucked out. His eyes were dark yet glossy, the color on his cheeks spread throughout his face, sweat dripping down his forehead and clinging to his freed curls. His chest was heaving, shaky breaths leaving a mouth that looked like it needed you.

“C-Coach, my arm is tense.” He was practically breathless.

“Then stop. Fifty is your limit.”

“Well honestly,” Changbin huffed and smiled a little while getting back up. “I…can go for more, it’s just tense.”

He was planning to flirt. He stumbled while getting back on two legs but you could tell by his gaze and the masked sureness in his tone that he was set on making a move.

You both knew, however, that confidence is just his first line of defense in shielding the fact that he was about to drool at the mere sight of you.

“Chill. I’m assessing until what point you’re comfortable with. I know you can though.”

“No, I r-really can. Just watch.”

Watch? Changbin practically kicked himself mentally at that. How could he ask you to watch him do more when he couldn’t even handle being under your eyes for only so long?

“Ah-huh. You don’t need to prove it to me, Bin,” You let out a dark chuckle. “Don’t get worked up over it. If anything…”

You stood up in front of him. Your mouth and body started reacting before you could think. Before you knew it, you were both in a mutual stare that could never break, and you were mustering up all of your rusty suaves to flirt back.

“If anything, I’m glad you obeyed me.”

Changbin’s plump lips shut themselves tight in a line. He did obey you: you told him to let him know when something didn’t feel right, no matter how small. You inched closer and he watched as you eyed him up and down through a half-lidded stare.

You were thinking with your ass at this point.

“Just proves that you’re a good boy.”

The eyes you were staring at widened yet they never pulled away from yours. He tensed up a little more, his muscles flexing at nothing but the last two words that escaped you.

You were shocked at yourself too. It seemed as if your feelings for him strengthened and affirmed themselves as a solid crush. You didn’t think it would be in you to be upfront, though. There’s one good thing to get out of it, which was testing the waters.

You wanted to know if he aligned with your type in the bedroom. Strong exterior, masculine but comfortable in his skin; all this to contrast with a softer, submissive, obedient interior.

It quickly became a little game in your head to tease him as much as possible.

“I’m kidding! But good job, that’s impressive.”

Hours after that, your praises wouldn’t stop. They followed him as you two continued the fitness assessment, and they rang in his clouded head even as he made it home.

—

He rushed to his bathroom mirror the moment he made it to his apartment. Changbin, for the entire night, was in perpetual shock by your words. The words “good boy” rang in his head like tinnitus. He squeezed his eyes shut before opening them to examine the physical discomfort he felt after leaving the gym.

He got hard. He wondered if he was hard since earlier, considering how heavy it suddenly felt in his jogger shorts. Changbin tugged on his erect length once and then twice. It wouldn’t go down, not when he was still thinking about how hot his new trainer was. How hot you were.

Changbin swore up and down that he never had a type. He thought that girls, boys, or people of any kind would appeal to him: he never factored in that someone like you would be the spitting image of a dream partner.

Strong, witty, dominant.

He felt so bad, so guilty, so filthy for thinking about you. Not only was he thinking of dating his fitness coach, but he was also thinking of what it’d be like to fuck them.

To fuck you. Or get fucked by you.

“Fuck it,” Changbin hissed as he pulled his shorts down, wishing his hand was yours.

After that first day, neither of you could stop, and it was driving the both of you crazy.

Both of your mouths were too quick for your own good. He commented once about his favorite exercise being the “clean and jerk” only for you to make him demonstrate it — the lifting one, of course. Another time, you told him you could do a “rim shot,” only for you to throw a basketball at the hoop above your head.

The image of Changbin’s flushed face at those jokes could never leave your mind. Similarly, he couldn’t get your teasingly sultry voice out of his mind. You both were too damn good at making immature jokes pass as legitimate flirting. It didn’t help that you were both so attractive to each other without even trying.

In the second session, Changbin got distracted by your ass while you were demonstrating the battle rope. The one after that, he nearly stumbled as he ran three laps around the gym next to you only because he got a whiff of your cologne. You both just finished your fourth session and you noticed him eyeing you down even if you were talking to your coworkers and other gym regulars.

It wasn’t teasing at that point, and yet, Changbin was very obviously falling for you.

After you prepared your bags to end your shift and congratulated him on another session done, you walked over to lean on a counter. You were about to leave work soon but took your time as you watched your client make his way to the locker rooms and showers.

Your elbows were propped up on the edge of the high table, your torso leaning forward while your legs stood back, allowing your back to arch. The pose accentuated the natural curvature of your ass and it didn’t help that your arms squeezed on the sides of your chest. Because of that, it popped out more than it should. You were holding your water jug in one hand, ignoring the handle, and engulfing it in your palm in a way that seemed interesting.

Changbin couldn’t help but glance at you. You didn’t mind being eye candy for him at that moment.

Chris snapped you out by making his way next to you, imitating your pose and leaning on the same counter, albeit struggling to look half as alluring.

“Hi, Channie.”

Chris cocked an eyebrow at you. “Please don’t call me that.”

“Sweet spot?” At your words, you felt a presence in the distance. You shook your head and looked at Chris.

“Sour. Why’d you do that?”

“Do what?”

Chris squinted at you and straightened up. “Call me that and…pose like that?”

“I don’t know. I wasn’t thinking much of it.”

“Whatever. Stop acting as if your crush on Bin isn’t obvious.”

“Then why bother asking if it’s that obvious to you?”

Chris was taken aback: he thought you would flat-out deny any mutual feelings for Changbin, as he alluded to that, but you didn’t.

“So you do like him.”

You clicked your tongue. “And what about it?”

“You just seem to like my guy. That’s all.”

“Gym rats speak weirdly homoerotically, huh?” You joked, elbowing his bicep. “In all seriousness, do you think he likes me?”

You didn’t ask that out of insecurity. In fact, you were far from being insecure about the feelings. You weren’t sure why you asked that question but you thought it had to do with Changbin’s consent. After all, was he actually uncomfortable this whole time?

“As you said, why bother asking when the answer’s so obvious?”

All of that doubt washed away immediately at your coworker’s words. He wasn’t Changbin, but he knew the man like he knew the back of his hand. “Y/N. Believe me.”

Chris took a step back and looked at you from head to toe. He wasn’t doing it to check you out but instead to prove his point. The action, however, made the air thicker, but the tension didn’t seem to swell from either of you. You brushed it off and listened to Chris.

“He never told me about having a type but I know my guy’s into people like you.” Something caught his eye. Chris paused and turned his head away. “Would you look at that? Speak of the devil.”

You turned to face the same direction your coworker was looking at, only to find the source of the weird presence and tension from earlier. Changbin was staring at the both of you with his bags in his hands.

His slightly agape mouth, tight grip on the bags, and creased eyebrows were giveaways of confusion, bewilderment, suspicion, and jealousy.

You attempted to break the tension by waving at him and flashing your brightest smile. His gaze softened at that but returned to a frown when he watched you walk to the exit.

You bid both of them farewells for the night. After you turned your heel at the door, Changbin ran to Chris.

—

Chris sat down on a bench as Changbin approached him. He listened to his friend’s weirdly gruff voice. “Christopher, dude.”

“Hm? What’s up?” He nearly laughed, wondering why you and Changbin chose the worst names for him.

Changbin pinched the bridge of his nose and huffed as he sat on a chair across from him. “I need advice: I like this person. I’m really into them. I kinda think they like me back, but we don’t have anything yet. I saw them with someone else and got jealous. It’s pathetic but I don’t know what to do with it.”

“There’s nothing wrong with that,” Chris snorted at his friend’s ramble. “You shouldn’t worry either if you think they’re into you too. Just shoot your shot.”

“Dude, it’s hard. They just make me act up so much that I start pussying out.”

“You’re too pussy for it? Bro, it’s just Y/N, they’ll be cool with it.”

“Yeah, they—wait, what the fuck did you say?”

The world crumbled around Changbin when Chris dropped your name.

“Don’t act so surprised. Your crush on them is really obvious and I told them you liked them. They were actually talking about you earlier. Also, you’re terrible at hiding shit.”

Changbin’s heart dropped. He was glad that his suspicions were instantly debunked, but the next revelation ran his brain over.

“Jeez, Chan, let me live.”

“You’re alive dude, your pulse is just going over the roof,” Chris pointed at his friend’s smartwatch, alerting him of his heart rate.

“Since you’re being real about this, I could tell that it’s worth a shot.”

Changbin simply nodded. Chris was getting more amused at how his best friend was handling this situation.

“If you’re worried about the part of them being mean to you, just don’t sweat it. That’s their display of affection. I won’t be surprised if they start teasing or degrading you or something.”

The silence was broken by a blink and a huff came from Changbin. Chris was joking, but his jaw fell when he noticed his friend averting his eyes.

“No way. Don’t tell me you’re both into that.”

As Changbin was about to deny him again, he instead felt his heart drop. “Both?!”

“That’s what you’re concerned about? They literally tease you all the time and yet you’re worried that you both like it?”

“Obviously not.” Changbin ran his palm down his face, unsuccessfully masking the blush creeping up on his cheeks and ears.

“Bin, dude, one-up yourself.” Chris readjusted his legs in his seat to fully face his pathetic friend. “Y/N is so ahead of their feelings that I can’t even tease them, so just do it! This isn’t high school!”

“Yeah, Chan, but it’s a damn gym.”

“Same point goes for you, dumbass,” Minho, Chris’ own client, and their mutual friend interrupted. He was pulling jabs at the punching bag a few meters away from them. “I don’t mean to snoop but it’s hard not to eavesdrop when you and Y/N have both been having softcore sex here every other day.”

Changbin felt his hair rise at that.. “Minho, there’s a place you can go to for free and it’s out of my damn business.”

“So you’re not denying it?” Minho smiled and alluded back to your antics.

“Of course, I’d deny it! It’s unfair to talk about them like that!”

“Calm down bro, they’re not yours.”

“Not yet!” Changbin exclaimed a little too excitedly. His two friends laughed at his enthusiasm: that’s their “man of principles” right there.

“Anyway, bro, I have a trick you might want to try,” Minho shared with a snort. He leaned in to whisper his secret, a palm covering his lips next to Changbin’s ear.

As expected, Changbin’s eyes blew wide, eyebrows raised, and then furrowed. His jaw fell but the corners of his mouth remained in an upwards smile of disbelief.

“Try it. Lee knows best, after all.”

Chris had an inkling of what the secret was and teased Changbin. “I can’t believe we’re giving you the pep talk. You better spill everything on them on Friday. Don’t be a pussy.”

“What’s wrong with being a pussy, anyway? It’s better than being a dick,” Changbin side-eyed his two friends.

“If I’m a dick, at least I’m huge.”

“Shut up! I’ll do it. Thanks, I guess.”

Changbin took that as a deadline.

Friday night, I’ll confess. No matter what happens, I’ll tell them what I feel. He repeated those clauses like a tasty little mantra in his head.

Friday rolled around. “Changbinnie’s got this,” he muttered in support to himselfIt wasn’t long before you and Changbin faced each other during yet another session.

This time, it was different. You’ve already established that this man crumples at the mere sight of you, but he seemed to have himself together in this instance. He had another trick up his sleeve, and it wasn’t just confidence.

You’d think he might have gotten over you if he wasn’t smiling dumbly at your simple greeting. He displayed almost no signs of nervousness despite his promise to himself about confessing.

“Bin,” you uttered, not missing the way his eyes lit up at the nickname. “Before we start, how much do you usually lift?”

“Ah, coach…” Changbin dipped his head downwards, looking at your shadow on the floor.

He slowly raised his head, a hand shying around the nape of his neck, feigning shyness and innocence with a meek grin and a question for an answer.

“How much do you weigh?”

“Pardon?” Your eyes bulged out of your head.

“H-How much do y-you weigh, coach?” He stuttered as he repeated himself.

It took you a second to unclench your jaw. It wasn’t the subject of the question itself that put you off: you knew he wouldn’t do anything horrible with that information. Your concern was what kind of flirtation technique he was going for. You could infer he learned it from the two men eyeing you on the other end of the gym. Chris and Minho were giggling a little too hard at Changbin’s antics. Might as well roll with it.

You freely disclosed your weight to Changbin. He smiled excitedly and raised an eyebrow.

“Just wait here.”

With Chris and Minho’s minimal assistance almost comically organized on cue, he came back with a barbell, dropping it with pride.

“I can lift this easily.”

You mentally calculated the weights on either end of the bar. The total matched the same exact number you described.

He’s lifting your weight.

You gasped in disbelief. He grabbed the bar and effortlessly swung it off the ground. He was doing a good job at making this game harder for you to win especially with his signature smirk.

You smiled back at him. “Sure you could.”

Changbin dipped his head again. He seemed genuinely shy this time.

“Tell me how and I’ll do it.”

Your eyes beamed up from the weights to his face. You were going to give Changbin quite the session, not knowing his plans to confess later into the night.

—

“You’re doing great, Binnie!” You exclaimed as he pushed the barbell upwards for what was supposed to be the last time today. You two agreed upon one set of bench presses, but after watching him go through two sets the other day, you decided to give him a few more reps. “One more!”

“Okay,” Changbin huffed in response. He pushed again.

His biceps tensed and his chest flexed with them. Even on his last push, he was still maintaining his form, just the way he needed it.

Just the way you wanted it.

A series of thoughts ran through your head down to your heart at once. Maybe it’s his obedience, his flustered face, his biceps tensing under your command, or the fact that he chose to lift a barbell at your weight, but you suddenly felt a pang in your chest seeing him comply with your demands right away.

To be fair, he teased you first today, and he was responding to your teases in subtle ways that satisfied you. You always loved to tease the people you liked; getting people to reach their blushing point is enough of a victory, but it was an achievement in and of itself to get someone huffing and puffing while looking at you, and only you, while being slightly embarrassed.

With that said, it didn’t feel like a real win until you got him to where you truly wanted him to be. Maybe that’s why you devised a plan to make him totally fold over for you.

You ultimately decided to push him, right then and there, on his very last set of bench presses.

“Nice! One more!”

Changbin whipped his head your way in confirmation. “Alright!”

“That’s good!” You exclaimed as he lifted the weight again with only the slightest hint of a struggle. “One more!” You didn’t want to back down.

“One more?” Changbin cocked both of his eyebrows up. His grunts turned into heavy breaths and half-groans from your demands and piercing stare. “Really?”

“What do you think I said, Binnie? One more!”

Sternly, you slapped your thighs to alert him, allowing the skin around your firm muscles to jiggle.

The sight was probably more than enough to rile him up because he tightened his grip on the steel and pushed harder. The veins in his arms popped ever so slightly. His muscle lines defined themselves and his collarbone grew prominent from the intensity of his pushing. Your plan was working.

“Nice. One last?” With pure confidence in your heart, you challenged him:

“Can you take it?”

Changbin’s reaction was priceless.

Before you could think twice about going too far with the innuendos this time, you noticed the glint in his eyes. Shock turned into desperate determination as his eyes were blown wide and his jaw dropped along with the barbell in his hands. It wasn’t a look of questioning; you knew he would keep at it as you asked, but it was as if he wanted to know if he was hearing things right. He wanted to believe what you said.

Maybe he thought about you saying this to him in bed one day. At the same time, maybe he was dirtier; he probably fantasized about you saying that to him in the locker rooms. Maybe he wanted you to ask the same question before you buried your fingers deep inside him. Maybe, in a more surface-level way, he just wanted to prove you wrong.

His stare was speaking to you: I can take it. I can take you. I can take it from you. He was pleading to prove to you that he could do it.

He was pleading to please you. Pleading to take you.

Alas, he had to deal with the barbell in his hands first.

“Yes, please,” he exhaled, sounding too desperate for his liking.

Even though you wanted to push further, he was still technically going past his routine: you could expertly tell that he wasn’t up to his limit yet, but you still wanted him to be safe and comfortable even under your spell. “You sure?”

You didn’t expect his voice to rise in volume while his lips curled upwards in excitement.

“Yes, please!”

“Then give it to me!” You yelled back, flashing him the same smile as he readjusted his form.

He pushed one last time with a loud groan and gently pulled back, finishing the bench press set for real this time.

You quickly decided to finish your teasing off with something sweet.

“Alright, nice one Binnie!” You walked over to him and helped him out of the bench, lifting and moving the equipment away from him. He immediately tended to his sore arms and chest by palming at them using his slightly calloused hands.

You patted his shoulders as he sat up. Before you knew it, words escaped your lips faster than you could think or blink.

“Good boy.”

Something seemed to crack inside him. When you looked at him, his eyes had hearts in them.

Changbin had an expression of what seemed to be a mix of shock, pride, satisfaction, and arousal. After putting his limbs through your hell all day, those two simple words of praise broke through his system: it shot through his ears, the post-exercise dopamine rush, and your words mixed and rang through his temples. Your words were so simple yet the phrase shook him thoroughly. Your words traveled down to his heart at lightning speed.

Your words also went down to his crotch.

Your plan worked a little too well.

“Thanks f-for today coach. I’ll just…restroom.”

Changbin shifted in his seat and got up almost a little too quickly. His thighs wobbled as he desperately tried to hide his erection.

“Go ahead, it’s okay,” you chuckled to yourself, watching him walk faster whilst fixing himself in his cycling shorts.

“I’ll see you then!”

Changbin’s heart was racing. He was getting so worked up that his smartwatch was screaming at him to calm down.

“Goddamn fuckass Fitbit,” he cursed.

He was getting hard again. He wiped the sweat off his forehead and locked himself up in a stall. His pulse was making its way down to his cock. He needed to make his way back home but he felt so feral and horny at whatever you did to him earlier.

Thankfully, he seemed to be the only one left in the gym. A dose of anxiety rushed through his blood from the thought of still getting caught, but most importantly, he hated the thought of thinking about you like this.

He reached down on the waistband of his shorts, slipping a hand underneath the fabric. A wet hiss left his mouth as he wrapped a hand around his cock. His other hand took the hem of his shirt into his mouth, exposing the skin of his torso and hardened nipples.

All he could hear in his head was your voice.

Can you take it?

He could, but he felt guilty for wanting to.

Good boy.

But good boys don’t play with dirty minds alone.

He almost drooled through his shirt, biting harder, only to be interrupted by the sound of a clang on the lock of the bathroom’s main door.

Shit. He wasn’t so alone after all.

He immediately fixed himself up, pretended to be done doing business in the stall, and walked out even if he was still annoyingly erect.

Suddenly, his skin went pale when he realized that you were the one who entered the room.

“Ah! Coach!”

“Ch-Changbin?!” The two of you screamed at the same time and jumped back at each other.

You started apologizing profusely for walking in on him. “Holy shit, I’m sorry! I didn’t know you were still here!”

“Me too! I-I thought you went home already,” Changbin responded, his mouth trembling, still in shock,“I was, uhm, fixing my things. What’re you doing here?”

Your hand made its way to the back of your head. “C-Closing up the gym. I thought I was the last one here. I’m sorry!”

“Hey, please. I took too long, I’m gonna take my leave now.”

Changbin gave you a reassuring smile but unexpectedly dropped it when he realized something he missed.

You better spill everything on them on Friday. Don’t be a pussy.

He forgot to confess.

The both of you had gotten so deep into the flirting and teasing to the point that he forgot his main goal of the day. Leaving with a bunch of burnt calories and a horny mind was still not enough to let his heart rest.

“B-But, uhm, I can stay a little while. I’ll help you close the gym.”

“It’s okay. You must rest, you seem tired!”

“Nah. I’ve rested up enough, stretched and everything.”

“I insist. Take a seat, it’s alright.”

“Thank you.”

You took a few minutes of checking the ventilation systems and stalls. You sifted through the lockers in case anything got left behind. It wasn’t as nasty as it usually would have been — courtesy of Chris suspiciously cleaning it up before leaving. What if he intentionally did that in advance in case the both of you settled here; which is, unfortunately, the case? You’re just glad that you confirmed only the both of you were there in the gym.

Returning to the main hall of the bathroom, you found Changbin sitting anxiously, bouncing his leg and locking his bottom lip in between his teeth. He wanted to tell you something. You wanted to say something. Neither of you did anything for a few seconds, merely sharing a stare with hearts behind your eyes.

Deciding to offer a massage was your best course of action.

“Sorry, the routine earlier was rough on you.” Before Changbin could retort, you quickly added. “Say, do you want a massage? It helps with sore muscles.”

“Oh, uh, you don’t have to!”

“But it helps ease the pain, trust me!” You walked closer, going behind the bench. You placed your hands on Changbin’s shoulder blades, keeping him sat in place before he could object. “They say I give the best massages. What do you think?”

You gave him all the time in the world to decide amidst his inner conflict because he, unfortunately, couldn’t think. You could feel his skin heating up under your palms, the temptation to turn his neck to face you creeping up on him, but he knew wiser. He grew grateful that he was facing away since he was still dangerously hard. Rain might pour on him if he kept looking at you.

Because he couldn’t handle much more of your contact, he made the stupid choice and allowed you to massage him.

“Sure. You can do it if that’s okay.” Whatever, he was actually none the wiser.

“Of course it is,” you said as you squeezed his arm with a smile.

Your fingers ran up and down his shoulders and biceps. They made their way to his neck and collarbone in soothing circular motions, your fingertips leaving indents on his skin through his shirt. Hard muscles tensed and relaxed under your touch, but you could feel jerks beneath you. The simplest actions made his chest tremble and his cock twitch. He hid it by squeezing his legs and hoped you didn’t notice.

You could smell him. Whiffs of the same sweet fabric softener mixed with an expensive cologne entered your nose, but a certain masculine musk was mixed in. You could tell it apart from sweat. You looked down at him and noticed the surprisingly large imprint in his shorts. That’s when it hit you. It was—

“Y/N, I have something to tell you.”

Any further thoughts scurried away to the back of your brain at his sudden serious tone. You were about to ask if it was about the massage but he sounded firm with himself.

“I’m sure you can tell by now, but I’ll be upfront about it.”

Changbin inhaled and exhaled. An air of peace surrounded the both of you.

“I have feelings for you. I’ve thought about it and…I really do like you.”

You were taken aback. You saw it coming, but you still shook your head to check if this was real. You’ve heard the same set of words before from other people but none of them hit quite like this. Confessions coming from your clients were the least of what you expected, but it was a welcome surprise.

“You don’t have to reciprocate, I just wanted to let you know that.”

Maybe he took the opportunity that he was facing away from you, but you turned to the side to see his face. It was only then that you saw him, face flushed all over, eyes shining, skin glistening with sweat and some sort of handsome glow. The both of you basked in each other’s presence and waited patiently.

“Changbin…”

Time seemed to halt and you felt your heart floating at your own words.

“I know, it’s a lot. I’m sorry I—”

“No, Bin, I like you too.”

Changbin’s gaze at you impossibly softened more as he stood up. He inched closer to you, taking in your beauty as if you were an apparition.

He brought his hands next to your face, hesitating. “May I?”

At this point, you could only think with your heart and your core. He looked insatiable, lovely, and pretty. You were all sorts of beautiful and handsome to him too at that moment. Neither of you could hold yourselves back. You thought he was being impossibly polite for not kissing you on the spot, so that’s what you did.

You held his hand next to your cheek and cupped his face with your other, pulling him into a deep, passionate kiss.

His eyes grew wide before closing slowly. The both of you took your time, relishing in the softness of both of your lips, pouting into each other and pressing the flesh as if you both got a taste of heaven for the first time.

You pulled away and your foreheads pressed against each other while the tips of your noses clashed adorably between your faces. He softly smiled and you mirrored him before diving in for another kiss.

Lightning cracked within you. As you kissed, your arms roamed around his body, your hands snaking his hips, and you pulled him closer with gentle force. Your tongue darted out mid-kiss and started licking his lips as if you lost control. He tasted so sweet even if he seemed so shocked.

“Ah!”

An adorable moan escaped his throat and fire erupted within your core.

“I like you too,” you said, “but I need you.”

Sparks made their way to both of your crotches. Hands trailed to your waist while yours pulled on his hips. Changbin grunted at the feeling of his plush flesh being held firmly, making you squeeze your fingertips.

“Fuck, I need you too.” Changbin whimpered slightly. Without thinking of it, your fingers danced their way up his sides and pulled slightly on his shirt, making their way over his chest. Your fingers circled his hardened nipples. He struggled to continue. “I’ve…been needing you since day one.”

“Since the first session?”

“Since we first met.”

You raised an eyebrow at him and slid your tongue on his adam’s apple in one quick motion. “How did you hold back for so long?” Changbin asked, attempting to ground himself by asking you more questions instead of moaning.

“How did you?”

“Can’t you tell I couldn’t?” He said, eyeing down at himself through a half-lidded stare.

You chuckled. “Need help with it?”

“Please, Y/N,” Changbin pleaded, his voice betraying him, lacing his words with desperation.

Without another word, your arm darted and pulled down on his shorts, instantly exposing his lower half. His underwear was thankfully cooperating; the waistband snapped around his thighs as your hands released from the swift motion, eliciting a very loud moan from Changbin.

His cock surprised you. It wasn’t the lengthiest, but it grew in size ever since you discovered the dick print earlier. What he lacked in length, he made in sheer girth. It was thick, so much so that it looked heavy. It was heavy: the moment you held it, your fingers struggled to wrap around him, and your hand nearly slipped from failing to lift it.

Training yourself to hold the bars on barbells clearly didn’t train you enough to hold his dick properly.

“What a big boy,” you muttered.

“I-I’m not, really.”

“You are. I bet I can’t fit you.”

Before he even got the chance to protest, he watched you prove yourself right by getting on your knees and taking him in your mouth. Your lips only managed to fit around his tip. You would go deeper, but his girth filled your mouth so much and so fast.

The sudden actions left Changbin struggling to keep himself steady. You circled an arm around his waist, nonverbally telling him to sit himself down. He got distracted by the firm flex of your arm before following, slowly sitting down.

What he didn’t expect, though, was allowing you to swing his leg over your shoulder as you took more of his cock in your mouth. Not long after, he felt something foreign prodding at him.

The additional contact only piled onto the pleasure so he didn’t dare try to stop it. He kept his eyes squeezed shut, focusing on the sensations of your tongue circling his tip and your hand building up the pace. It was only when you paused and spoke that he finally decided to look at you.

“Is this alright?”

Peering down at you left him speechless.

A finger teased his ass and made its way around the rim of his hole. As he stared at it, letting drool pool under his tongue, you looked up at him with swollen lips.

“W-Want it. Need it.” He gave you the same look that he flashed your way when you teased him earlier. From that alone, you knew he could take it.

You pressed your tongue against his rim for a moment, lubing it up before pressing a digit onto him. “Done this before?”

“No. Never,” Changbin huffed. “F-Feels so—Ah!”

Before he could say anything more, you stuck a finger inside him. Shockwaves rippled across his body, sensations and stings he’s never felt starting to bite him everywhere.

Your finger slid into him slowly. It stretched his walls which were tight yet somehow clean and wet. It left you to wonder if he at least prepared himself for something like this even if he’s never tried it. He writhed under you until the discomfort left him, whispering for you to keep going.

You added another finger in. You started curling them. It hit his sweet spot, causing him to groan out your name and flinch all over. Pleasure and ecstasy were the only things he felt and the only other word he could mutter was your name.

“It’s so fucking g-good.”

“And you’re so good. Taking me so well. Such a pretty boy.” The praises became addicting to him, causing him to push his hips and rut against your fingers, chasing a high.

“Fuck. So, so—ah—so good.”

“You like this, don’t you?” You responded to his mumbling with a smirk.

“Love it.” He breathed out. “Love it—ah—love you. Y/N, I love you so m-much.”

Changbin could only manage to repeat the same thing over and over, his mind fogging with nothing but arousal as he melted under your touch. He didn’t just want your lips on his, he didn’t just want your fingers in him, he didn’t merely want his cock inside you. He needed you, all of you, your sex, your self, and more; he just couldn’t say it clearly when your fingers curled against his prostate.

Eventually, the cock in your mouth twitched. That was a telltale sign that he was about to finish. Changbin patted your head and signaled you to stop.

“I-I don’t wanna cum yet.”

Your lips popped off his cock as you looked up at him. “Hmm? Why?”

The sight of you like this drove his mind until it went hazy. With vision blurring in pure ecstasy, words blending, he felt like he was losing himself under you. “Need…need to f-fuck…”

“Too much? We can stop—”

“No. No, don’t stop,” he whined. “I just—please, Y/N, I need to fuck you. Bad.”

Practically pleading, he pulled you up off your knees by wrapping strong hands around your biceps and mindlessly licked a stripe across your lips. You pulled away from the wet kiss to find his face flushed impossibly deeper and his cheeks puffed up. His mouth was trembling and he seemed to not be able to speak any further.

“Going dumb for me, Binnie?”

“Mhm,” Changbin nodded, not denying—no, not even processing what you had just told him. You brought your hand up to cup his face, only to be shocked when he immediately nuzzled against it.

“How pathetic. We’ve barely fucked and you went dumb over two fingers?” You brought up the fingers that entered him earlier, showing the wetness to him.

He whined, sweet vowels of no words squeaking out of him. After shying away, he looked back at the digits and brought them to his mouth.

You were speechless at his neediness. You watched him blissfully suck on them before he pulled away and mumbled. “Want more.”

You smiled at him and pecked his cheek. The following gestures happened in a flash, and you had yourselves fully exposed to each other. Blinking eyes at your figure, Changbin was legitimately drooling in awe of your figure, tears stinging his eyes at your beauty.

“Pretty…”

“Thank you,” you giggled, wiggling your ass in front of him until your cheeks made contact with his V-line.

You suddenly had an idea. Like earlier, it would be fun to safely challenge him while he’s in a cute headspace. “You lifted weights that were exactly my weight, right?”

“Mhm. Yes Y/N.”

“Prove to me that you can actually do it.” You traced his jaw, feeling his figure from behind your body, watching him with nothing but touches.

“Fuck me while carrying me, Binnie.”

It ignited something within him because he instantly lifted you off the floor with ease. Teasing your fleshy, wet entrance with free fingers, he aligned your hole with his cock. As the sensations of having your heat held by Changbin, he sank you onto him.

He started thrusting into you after a minute of adjusting. “Am I—fuck! Am I heavy? Light?”

“No, no, just right. So g-good.” Changbin kissed your neck, thrusting out of you before digging himself further inside. “Wanna—ah! Wanna fuck you f-forever.”

“Changbin,” you breathed out. “Arms…around me.”

You pointed to the general area of your neck and shoulders. The signal left Changbin in disbelief for a second. Complying was easy for him but he still felt nervous. He didn’t want to suffocate you but he was also chasing your praise. Wordlessly, he swung an arm across your neck and latched his hand on your chest, allowing you room to breathe as he squeezed tight. You were in a literal headlock; a fantasy you never realized would come true.

He didn’t expect the position to make his job easier. It allowed him to piston into you with force while kissing and marking up the side of your neck that wasn’t being squeezed by the meat of pure muscle. You could hear his extremely loud moans better in one ear while the other half of your face was being massaged by flexing skin. Thankfully, the man — who you’d forgotten was your professional gym buddy — was careful enough, pecking you every once in a while, syncing his breaths with yours to check if you were okay.

The thrusts became erratic and your bodies heated each other every time you both made contact. He reached down to touch and tease your heat while you leaned back to hold and squeeze his ass cheeks as much as you could. He moaned louder and started shaking as you groped him harder. You felt his hardness drilling into you, leaving you wetter than ever.

He couldn’t stop whining. Changbin never intended to make so many restrained noises slip in the gym. He whined almost the same way he did each time you teased him as he lifted weights. It was the same, high-pitched, unbelievably sweet plea that escaped his throat with a tremble at the end. This time, however, it was louder, needier, more shameless, and more desperate. This time, there was no restraint. There was no point in holding back anymore.

You could almost taste heaven, and you called out his name over and over, signaling your need to finish.

“C-close—cumming,” he whined. His cock started to feel firmer as it pounded you. “Cumming, I’m cumming, I-I can’t…”

The both of you could feel each other get wetter and wetter. Your walls clenched and unclenched around him, trapping him inside you, urging him to finish with you.

“Let go, Binnie, c-cum for me. It’s okay. Cum with me.”

“Ah—thank you!”

After a few thorough, full, and harsh thrusts, Changbin sank himself deep within you one last time and came inside as you creamed all over him as well. Both of your voices were strained especially after screaming in unison as you finished.

It took a while to ground yourselves back to reality, but it was worth the effort.

You both cleaned yourselves up as you gave Changbin an actual massage in the restroom. Fingers in the ass felt good but left him relearning how to stand on his own. Without your assistance, he wouldn’t know how he’d make it out of the bathroom. He also gave you rubs around the skin he squeezed and thrust onto. Giggles and kisses here and there against running water felt calming and domestic. The both of you put your extra clothes on and sat yourselves down on the same bench.

After packing your things, you realized how fucked out he still looked. He looked pretty with his cheeks puffed out, eyes still glossy, and lips parted as they were tinted with your love earlier. Though he’s cute this way, he still seemed so tired, neck hunched as if his previous horny thoughts weighed his head down. You naturally felt bad so you silently patted your shoulder. Your signal urged him to inch closer and collapse his head beside your collarbone.

“Again, thank you,” Changbin said with a shy smile. “Didn’t expect this, but seriously, thank you.”

“No worries. I’m always happy to help you.”

He shook his head at your response. “Uhm…this…this will—this is going to sound—well…” Changbin stuttered as he fidgeted with his flushed hands. “I don’t mean to be rude so I wanted to ask…”

He was a stammering mess. He thought his words over for a second before lifting his head a little higher. “Could we…hang out sometime? I just…I want to spend more time with you, is all.”

Your eyes lit up at his words. “Oh, of course, sure!”

“Oh, hah, okay. Thank you. I just wanted to be sure, I didn’t want to make it seem like…I only see you like this. I-I don’t. I really like you—I really love you. I’d love to know you better outside of this.”

As the words escaped his mouth, the confident and bright Leo man that you admired seemed to reemerge before you. You have to admit: despite everything, Changbin’s one hell of a respectful, wonderful gentleman. Clarifying that he wasn’t objectifying you should be the bare minimum, but you could sense within his intentions that he means it and more.

“No need to sweat it, Binnie,” you responded, making him blush again.

“Really?” Changbin jokingly wiped the sweat off his forehead, making the both of you giggle. The air was warm but the energy you two shared was chill at the same time.

“Really, though. I appreciate it. I’d love to know you better, too.” You pressed a kiss on his temple, reheating his cheeks.

The both of you exited the gym with your hands interlocked. He smelled like sex, shampoo, and you, but who gives a fuck?

You never really expected your client, the one and only Seo Changbin, to be your boyfriend after five sessions alone.

taglist: @toastyseungmo @hobihearteu @biddes-enthusiast @snow-pegasus @subby-kpop @myrandomthoughtsandhobbies @eggielix @turnipfizzle @my-favorite-bangchan @chrisbahng @hanniecheesecake

special mentions to @hyun-bun and @ppiri-bahng for their own gym-themed writing that inspired multiple parts of this fic as well, please check them out! hugest thank you to @meivida for proofreading and sending me endless reassurance and support!!

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#crime #why..... just why #beautiful work #my idol #sub!skz #utterly amazing

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