Lips Aren't Just for Kissing
Min-gyu sensed something was wrong.
Song Jiwon stood facing him with her arms crossed, but her hands trembled ever so slightly.
It felt like he had been caught red-handed.
Just moments ago, he had simply been dragged out of the office by Kim Aran, yet the current situation made his chest sink like a criminal being arrested at the scene of the crime.
Song Jiwon kept her gaze fixed on Min-gyu, her lips pressed tightly together. Then, in a low, steady voice, she spoke.
“Shall we talk for a moment on the rooftop, Min-gyu?”
At those words, a chill ran down Min-gyu’s spine.
Rooftop…? Why there, of all places…?
Don’t tell me… she actually found something out? What is she going to say?
He felt wronged. He had only been pulled along by Kim Aran. Yet the emotion that overtook his indignation was fear.
Her tone, her eyes, and the destination—all of it felt ominous.
Shit, why am I even thinking like this…?
We’re not even dating… In reality, I’m the one being treated like her personal plaything…
The days when her fingertips had stroked him and her toes had coaxed out his release. Though she had acted playful, her gaze and touch had always carried one-sided control.
But now… why did it feel like he was the one being jealous?
Min-gyu found the irony absurd. In reality he was her toy, yet here he was, being led by that very toy while hiding the fact that he was her “Master,” climbing toward the rooftop. Everything felt like a mismatched puzzle.
Song Jiwon began climbing the stairs in silence. Min-gyu could only follow, watching her back.
And then his vision was completely filled with her body.
She was still wearing the same outfit from class: a tight dress with deep slits on both sides. The hem was long enough to cover her thighs, but the slits boldly revealed her skin with every step.
As Min-gyu climbed behind her, he couldn’t help but stare at the flashes of bare flesh through the gaps. The slit ran well past the middle of her thighs, and with each stair, the fabric parted enough to expose the curve near her hips. When she lifted one leg, the boundary where skin met the underside of her buttocks flashed into view, and the warmth radiating from within felt scorching to his eyes.
She wore no stockings, no socks—nothing but bare skin. Her legs were firm, honey-toned, and glistening under the light. Every movement sent ripples of reflected sunlight along their curves, slowly tightening around Min-gyu’s breath.
…Did she wear this on purpose…?
Beneath the short, fitted upper half, the line from her waist to her hips and down to her thighs was sculpted with precision. With every step up the stairs, the underside of her buttocks and the inner thighs peeked out teasingly.
Min-gyu couldn’t tear his eyes away. He swallowed hard, caught between the fear of being discovered and the shameful anticipation that the dress might reveal even more.
That gap in the fabric… the very center of the body that had masturbated and even wet itself under his orders… was now ascending toward the rooftop, one step at a time, right before his eyes.
Ah… that body… right here, on that day… it followed my command… even peed…
The thought made his heart pound wildly with shame, excitement, and the guilt of his hidden identity.
At that moment, Song Jiwon stopped. The rooftop door stood before them. Without a word, she reached out and turned the handle.
Click.
The sound of the metal door closing made Min-gyu instinctively tense. Song Jiwon walked onto the rooftop first. Still silent, she slowly turned her head left and right, scanning the empty space. There was no one else around—just the two of them.
She paused, then walked past Min-gyu and returned to the door.
Clack.
The metallic sound of the lock engaging made Min-gyu swallow nervously.
She locked it…? Why…?
When she turned back, her expression was clearly different from usual. Deep furrows between her brows, her gaze lowered for a moment—then she suddenly grabbed his wrist.
“Sit.”
She led him to a bench on one side of the rooftop. Her fingertips were cold, and her steps were unmistakably angry. Once they sat side by side, Song Jiwon leaned back against the bench and drew in a slow, deep breath. She held it for a long moment before exhaling. Again she inhaled, and gradually her breathing steadied.
Finally, she looked at Min-gyu and spoke.
“Min-gyu. Why were you coming out of Teacher Kim Aran’s office?”
Her voice was low, but tension clearly laced it. She was holding her emotions in check. Min-gyu took a short breath and answered honestly.
“…I was just sitting on the stairs looking at my phone.”
“Teacher Kim Aran suddenly showed up and dragged me to her office…”
Min-gyu lowered his eyes.
“She talked about the swimming club. She said I should rejoin since I quit before.”
At that moment, Song Jiwon quietly crossed her legs. The motion looked casual, yet the bare thigh revealed through the dress’s slit was even more exposed than it had been on the stairs. She leaned slightly toward him. Her thigh brushed against his, and the warmth of her skin transferred directly through the fabric. A soft shampoo scent drifted over, and a few strands of her hair fell across his arm.
She tilted her head, seemingly unaware of the contact, and quietly gazed at his face. Her expression still held an awkward unease, but beneath it lay far more emotion than words could convey.
Min-gyu sensed she was waiting for something. Not certainty, not suspicion—just a gentle, anxious look, like a puppy seeking reassurance.
“…You’re not lying to me, are you?”
Her voice was soft, but her eyes carried a desperate, almost pitiful plea.
“I really hope it’s true,” they seemed to say.
Min-gyu nodded and replied, “It’s true. That’s all that happened…”
“…Teacher, why are you asking me this?”
His tone was timid and cautious. Song Jiwon stared at him for a moment, then curved her lips into an awkward smile.
“Ah… I’m glad.”
She smiled brightly, the face of someone whose anxiety had just melted away—partly embarrassed, partly relieved. Seeing that smile, Min-gyu felt confused all over again. The Song Jiwon in front of him now wore such an awkward yet warm expression that it was hard to believe she had been glaring sharply just moments earlier.
She let out a small sigh-like laugh and tilted her head.
“Teacher Aran has always been like that. She’s friendly, talks well, and the students love her.”
She hesitated, then slowly moved the hand resting on her knee onto Min-gyu’s thigh. Her fingertips settled lightly on his pants, as if testing the waters before revealing something sincere.
“It’s just… when a teacher like that suddenly shows interest in a student like you, it makes me worry.”
Her voice trailed off as she gently stroked his thigh once. The touch wasn’t enough to make him flinch, yet it conveyed everything she was feeling.
“How should I put it… It’s like watching another professor try to steal my favorite student to their department. It makes me jealous for no reason.”
She smiled faintly and tucked a strand of hair behind her ear.
“You’re really perceptive, Min-gyu.”
“I genuinely think you have talent. But the thought of someone else taking that away… it bothers me.”
She looked at him again, leaning closer this time.
“For example, I have a graduate student I supervise for their master’s. They’re really good—too good to lose. But when another lab asks them to join, I get anxious. It feels like my best student is being stolen.”
As she spoke, she pressed her hand lightly against his thigh.
“Did I overreact? But now that I’ve explained it… do you understand, Min-gyu?”
Her voice was low and careful, yet her eyes were warm and her hand remained quietly on him. Min-gyu swallowed at the warmth of her touch and the subtle emotions behind it.
Song Jiwon’s fingertips began tracing slow circles on his thigh. At first it seemed unconscious, but after several rotations the motion carried clear intent. She bit her lip lightly, hesitated, then finally spoke.
“…Um, Min-gyu. About what happened before… Can I apologize for that?”
Her words trailed off. Her expression was clearly hesitant, yet her fingers continued their slow circles on his thigh.
“Honestly… I shouldn’t have done that. I think I crossed a line back then. I’m sorry. It was a mistake… really.”
Even as she said it, her fingertips crept closer to the inner side of his thigh. Min-gyu pressed his lips together, exhaled softly, and replied.
“Ah… no, it’s fine!! I… actually, it was… I liked it… so I just stayed quiet…”
His words stumbled, but his eyes trembled with an emotion he couldn’t hide. The moment she heard his answer, Song Jiwon’s eyes curved slightly.
Got it.
This kid really is going to keep the secret.
She cheered inwardly at the confirmation.
Then… I can act even more lewdly, right?
He really is a good kid. Kind, cute, and he’ll never tell a soul.
Suppressing her joy, she looked at Min-gyu and said, “Really…? Hmm~ Min-gyu, you’re full of surprises. Such a man~”
“Your drawings are the same. Bold lines, strong… and other places too… haha, exactly like a guy’s style~!!”
Her voice trailed off, and suddenly she grabbed both of his cheeks with her hands.
“Uup!?”
Then she pressed her lips to his.
“Uuuup!!!!”
Min-gyu’s eyes widened in shock. His cheeks were squished between her fingers, his lips puckered out comically like a goldfish. It was a short, quick kiss. Song Jiwon blinked, looking flustered, then pulled back and turned her head as if hiding her embarrassment behind a laugh.
“Ahem… Teacher will show you even more fun things from now on. Um… I haven’t received any specific instructions yet… no, no,”
She shook her head and chuckled softly.
“So for now… the details are still a secret. But if you keep our secret well, like you have been… you’ll find out soon enough, right?”
She met his gaze, the corner of her mouth lifting in a playful tone.
“…And lips aren’t just for kissing, right?❤️”
With those words, she brought her index finger and thumb together to form a small circle. She raised it to her lips, parted them slightly, and let the tip of her tongue peek out. The small tongue approached the circle, then withdrew, repeating the motion in a short, suggestive rhythm. The air between her mouth and fingers felt indecently charged as the movement continued, slow and deliberate.
Min-gyu’s eyes were instinctively drawn to the motion. Song Jiwon lifted the corners of her eyes and looked at him with a deep, knowing gaze.
That look said everything: “You know exactly what this means, don’t you?”
A brief silence. A mischievous smile played on her lips. She withdrew her hand and whispered, “…We have to keep the secret safe, okay?”
At those words, Min-gyu blinked. But inside, he was trembling with excitement.
The fact that she hasn’t received any specific instructions yet… means that as long as I give the order, this woman can do anything, right? Heh heh heh.
Outwardly, he nodded like a clueless puppy.
“Ah… yes… I understand…”
But inwardly, he was bursting with elation.