017. One Week
017. One Week
PT with Kang Seul-gi felt like alternating between an ice bath and a hot spring.
Over the past two days, while she was with Choi Min-jun, she had found herself thinking about this man.
While she had Choi Min-jun's in her mouth, she had imagined it was Song Jae-pil's. The guilt of spilling her juices while imagining Song Jae-pil under Choi Min-jun had turned into aggression.
"Today, I'm really going to shred your lower body. Be prepared."
The PT session began with an intensity about 1.5 times higher than usual.
It was anger directed not at Song Jae-pil, but at herself, but when expressed outwardly, it transformed into strictness.
Jump squats, walking lunges, side shuffles. Beads of sweat formed on Song Jae-pil's forehead and his breathing grew ragged.
But Song Jae-pil followed the instructions silently, without a single word of complaint.
He didn't grumble during rest periods between sets, nor did he voice dissatisfaction about the high intensity.
And above all, his eyes didn't wander. He focused only on his form in the mirror.
Something creaked inside Kang Seul-gi. The reflection of herself in the mirror seemed to flaunt every curve of her body as if begging to be pounced on right this instant.
In an outfit like this, most men's gazes would inevitably slip at least once, regardless of their willpower. Hadn't the member who came in this morning, working out alone, kept sneaking glances at her constantly?
It was the first time she had ever wanted to attract a male member's gaze as a trainer. No, to be precise, it wasn't a male member's gaze in general—it was this man's gaze.
'Am I not attractive? Or... is he just holding back?'
But, but! Why on earth won't this man lower his gaze even once?
A strange sense of competitiveness rose within her. Why isn't this man looking? Is he really not interested? Or is he holding back incredibly hard?
Whichever it was, it stung Kang Seul-gi's pride. Not her pride as a trainer, but her pride as a woman.
The harsher she was, the more Song Jae-pil's indifferent attitude began to drive her crazy.
'Let's see how long you can hold out.'
She wanted to force this man's gaze downward.
She wanted to see him on his knees, to see those indifferent eyes glisten with desire—she couldn't stand it.
After a brief rest, the workout resumed.
"Your form's gotten a bit sloppy. Let me fix it for you."
It was the perfect pretext. A trainer correcting a member's form. The most natural reason for contact in the world.
And then, she began an unconscious provocation. Approaching from behind Song Jae-pil, she stretched out both hands and firmly wrapped them around his waist.
Using the excuse of fixing his posture, she pressed her body against his back. Her breasts, covered only by the bra top, pressed firmly against the hard muscles of Song Jae-pil's back.
"...Go a little deeper. You need to use your glute muscles."
The heat from Song Jae-pil's warm body spread through her palms and coursed through her entire being.
"Hips a bit more back. Yes, that's it."
The scent of a man heated by exercise, that thick pheromone-laden fragrance, numbed Kang Seul-gi's nostrils. Her heart began beating faster than usual.
"How are the thigh muscles?"
Kang Seul-gi stretched out her hand without hesitation. She swept her entire palm up Song Jae-pil's thigh. Starting from above the knee, going up near the groin.
It was a touch incomparably slower, broader, and deeper than a few days ago.
Contrary to her words, it wasn't a touch meant to feel the texture of the muscle. It was exploring the heavy presence that must lie beneath.
Not with the hand of a trainer, but with the hand of a woman. Kang Seul-gi herself knew it, yet she couldn't stop.
"Looks fine. Let's move to the next set."
The tips of her fingers trembled slightly, and her earlobes were already flushed a burning red.
[This is part 2/3]. You must maintain the narrative flow with the previous chunks while following all system prompt guidelines previously mentioned.
[Min-jun: Want to grab a beer after you're done today? I miss you.]
A message popped up on the watch on her wrist along with a vibration, but Kang Seul-gi ignored it as it was.
'During a PT session, I should focus only on the PT.'
Of course, she wouldn't admit that the mere sight of the name Choi Min-jun entering her field of vision at this important moment was annoying.
Unknowingly, Kang Seul-gi's voice grew louder as she wrapped up the PT session.
The workout was over.
The final cooldown stretching time.
"Please lie down this way, member-nim. I'll release your hamstrings and psoas muscle a bit. Since you really worked your lower body hard today, if you don't stretch, you'll have severe muscle soreness tomorrow."
Song Jae-pil chuckled softly at Kang Seul-gi's action of patting the mat tak tak and lay down on the mat.
His sweat-soaked workout clothes were sticking to his back, and his chest was heaving greatly. Utterly exhausted after properly blasting his lower body.
"Please lift your leg."
Kang Seul-gi lifted one of his legs, placed it over her shoulder, and gave his hamstring a long stretch.
"Ugh... It's a bit tight."
Hearing Song Jae-pil's groan, Kang Seul-gi instead bent her body more boldly.
"It's because they're very knotted. I'll press a little deeper for you."
She deliberately positioned herself so that her chest touched Song Jae-pil's ankle. One hand held his ankle, and the other supported the back of his thigh, adjusting the angle.
Kang Seul-gi's upper body naturally leaned toward Song Jae-pil. The cleavage between her cropped top was exposed directly in his line of sight.
But Song Jae-pil still had his eyes closed. That damnable indifference was wearing down Kang Seul-gi's patience.
"Your body is indeed flexible, so your stretching range of motion is no joke either."
Kang Seul-gi continued making conversation as she moved to the other leg.
She lifted his left leg, placed her hand on the inside of his thigh for support, and in the moment she pushed the leg toward his chest...
It touched. It definitely touched the back of her hand.
Through the workout clothes, something heavy and firm, Song Jae-pil's that, unlike the time it brushed past two days ago, was now perfectly pressed against the back of her hand this time.
Kang Seul-gi wriggled the back of her hand, feeling that heaviness. With just one layer of workout fabric between them, the shape could be discerned.
Length, thickness, density. Because it was the back of her hand and not her fingertips, an even broader area of information flowed into her brain.
'Is it semi-erect? Even so, this much...'
Even in its non-erect state, it easily overwhelmed Choi Min-jun's fully erect state.
It wasn't an illusion. This man was the real deal.
The fact she had a boyfriend, the fact this was a public place, the fact she was a trainer—all of it disappeared.
Normally, she would have been startled and pulled her hand away, but today she did not.
"Can you feel your muscles loosening up a bit?"
Kang Seul-gi was now almost on top of Song Jae-pil's body.
'Please... look at me. Even after I'm going this far.'
Her rationality had long since flown away, and a desire like that of a bitch in heat, a craving to accept this weapon, began to bloom.
It's only hard to cross a line once; the moment you cross it, that line is no longer the line it was before.
And for that one second that Kang Seul-gi did not remove her hand from Song Jae-pil's cock.
She didn't know that that one second was the irreversible line.
"Teacher."
Then, Song Jae-pil sat up. Between Kang Seul-gi's face and chest. A distance not even a handspan wide.
When Kang Seul-gi flusteredly tried to pull her body back, Song Jae-pil's thick arm firmly secured her thigh.
"Is stretching... always this stimulating?"
Song Jae-pil's gaze traveled downward. Kang Seul-gi's chest, waist, and below.
"Th, tha...."
Kang Seul-gi held her breath. The thrill that her sexual appeal had worked and the shame of feeling completely stripped bare before this man rushed over her simultaneously.
Anyway, wasn't it true that she'd been the one to come onto him first?
"That's... because you were too tense, Member-nim...."
"Is that so? But it seems like the most tense part still hasn't been relieved yet."
Song Jae-pil was still pointing to the area where Kang Seul-gi's hand was resting.
Now, more blatantly, his swollen cock was pulsing, as if about to tear through his clothes and burst out.
Kang Seul-gi's pupils shook. She gulped. The memory of holding Choi Min-jun's pathetic thing yesterday surfaced, making her skin crawl.
"...Should I relieve it for you? Me?"
From Kang Seul-gi's mouth, a shameless line that had crossed way beyond any boundary, slipped out without her even realizing it.
Song Jae-pil tilted his head slightly.
"Ah... that is...."
Only after blurting it out did Kang Seul-gi realize what she had just said.
It was a line a trainer who had built her career without a single scandal in years should never have uttered.
But it had come out. And she couldn't stop it.
'Are you insane, Kang Seul-gi? What are you saying to a member right now?'
Her heart was pounding as if it would burst through her throat.
"Here?"
Song Jae-pil wasn't flustered. He wasn't even surprised. Instead, he looked at Kang Seul-gi with relaxed eyes.
"If we do it here, there'll be quite a few eyes watching."
The corner of Song Jae-pil's mouth twisted upward.
"I wouldn't mind, though."
Faster than the warning lights in Kang Seul-gi's head, her lecherous instinct cloaked itself in a shell of self-rationalization.
'It's the hormones. My menstrual cycle is particularly fierce this month, that's all. Yes, this isn't my will—it's my body screaming.'
Even as she deceived herself, Kang Seul-gi's right hand was already aimed between Song Jae-pil's taut thighs.
The line Kang Seul-gi had drawn for herself had long been crossed the very second she hadn't pulled her hand away earlier, and now all that remained was the path forward.
"Well, if a beautiful person like you, Seonsaengnim, helps me, I have no reason to refuse."
Kang Seul-gi thought she had done the seducing. That her revealing crop top and tight shorts had done the trick.
But the truth was different. It was the meticulous plan Song Jae-pil had crafted from the moment her hand brushed his cock during the leg press.
"Inside the staff room... there's a storage room."
Kang Seul-gi confidently stepped forward, thinking she was leading him into the trap she had dug, but in reality, she was walking right into the maw of the predator named Song Jae-pil.
"No one comes in there. The other trainers won't come in for work for another two hours. Right now... it's just now."
Kang Seul-gi's voice sped up. She was out of breath from speaking so urgently.
'Ahh... Prey that kindly prepares the location for its own consumption....'
Suppressing the laugh that threatened to burst out, Song Jae-pil, as always, was only looking at Kang Seul-gi's pupils.
Just like always.
As if in a hurry, Kang Seul-gi grabbed Song Jae-pil's wrist.
Feeling the hot body temperature through his wrist, she pushed Song Jae-pil across the staff room and into the inner storage room.
Clank-
Feeling her madly beating heart, Kang Seul-gi locked the door.
The smell of iron and rubber stabbed at her nostrils, but what she felt most strongly was the scent of sweat and skin.
When only their breathing filled the space.
Click-
Kang Seul-gi turned on the storage room light.
Without waiting to see who would make the first move, they began to devour each other.