Chapter 123: Side Story - Younger Sibling (6)
Chapter 123: Side Story - Younger Sibling (6)
It wasn't as if this had never happened before.
Kang Yu-jin and Kang Yu-ri often hung out as if there were no tomorrow, and movie theater dates were a part of that.
The movie was always secondary. They would pay for tickets just to enjoy the thrill of being in a dark, semi-private space where they risked being caught.
Of course, it was a nuisance to others. They had never been caught, but they figured that was only because anyone who noticed chose to stay quiet or mind their own business.
So, all of it was essentially a "thrill play"—paying for excitement where the outcome was already known.
Unlike right now.
Kang Yu-jin pretended to watch the movie, his body tense. He could hear the dialogue and see the scenes on the screen.
In reality, however, the plot wasn't registering at all. It couldn't.
In the surrounding darkness, his sense of touch became hypersensitive. His eyes were fixed forward, staring blankly, and even his hearing was wide open, indiscriminately absorbing every sound.
In the middle of the noisy theater, Kang Yu-jin swallowed hard, focusing so intensely that he felt as if he and his younger sister were the only two people left in the universe.
He felt his sister’s thigh twitching beneath his hand. Heat radiated from every spot he touched, and her breathing grew slightly ragged.
A vivid heat and moisture gathered over her underwear, and the pussy juice flowing along the fabric of her panties made everything slick.
Engaged in an act that was familiar yet somehow never felt routine, Kang Yu-jin instinctively rolled his eyes to look at his sister.
To be precise, he tried to look, but he couldn't see her.
The darkness of the theater, the brilliant light of the screen.
The contrast blurred his vision, the light playing tricks on his eyes. He couldn't see her clearly even though she was right next to him.
With her face hidden in the shadows, his ways of checking her reaction were limited.
The amount of pussy juice felt through her panties, the twitching of her pussy hole, the movement of her thighs.
The last one was the most important. Whether her legs opened or closed. Tense with the vague fear that he might be rejected, Kang Yu-jin let his hand slide further.
And his younger sister did not refuse his touch. She spread her legs subtly, her thighs convulsing slightly as she felt her brother rubbing and pressing against her crotch.
She didn't let out a heavy breath. She barely swallowed it down; there was only the time spent enduring, trying not to show any sign of what was happening.
Without knowing her expression or the look in her eyes, Kang Yu-jin rubbed his sister’s pussy, driven by the single fact that she had allowed it.
He tried not to rub too hard or move too fast.
It was closer to a form of pressure masturbation. Under his touch, Kang Yu-ri was becoming as flushed as she could possibly be, racing toward a climax.
But she couldn't come. If she did, she didn't trust herself to hold back her voice. That had always been the case, and it was no different now.
Even so, it was getting harder to endure. It felt like a sound was about to leak out. Conscious of her friend watching the movie right next to her, Kang Yu-ri moved her hand as if to eat popcorn and covered her mouth.
‘I’m going.’
The climax spread from her lower abdomen and crawled up her body. It felt like a ticklish sensation, like insects crawling, but then it transformed into a fierce heat, like a flame.
As her body heated up, sweat broke out, and her eyes threatened to roll back, she opened her mouth to chase the pleasure surging all the way to her brain.
“…Ngh.”
She almost let out a lewd sound, but stopped when her brother’s finger pressed firmly against her vaginal walls from inside.
“…Yu-ri?”
She had reached a climax because her erogenous zone was pressed so suddenly, but she couldn't let it show. She barely rolled her trembling eyes and felt relieved that her friend couldn't see her face.
“I bit my tongue… it hurts.”
The excuse she managed to squeeze out was pathetic. If the screen had been dimmer or the darkness less absolute, she would have been caught long ago.
Fortunately, the theater had good facilities; the screen was bright enough and the theater dark enough that the person right next to her couldn't see clearly.
Thanks to that, her friend sitting right beside her just let out a small, "Ah," and chuckled.
“Be careful.”
With that, her friend focused back on the movie. For a moment, she saw her friend’s boyfriend, sitting on the other side, wearing a suspicious expression, but she didn't care.
She looked straight ahead, pretending to focus on the film.
She reached out and guided her brother’s hand with her own.
The blanket bulged for a moment and then settled. His fingers touched her pussy, which was now fully exposed because she had pushed her underwear to the side.
Exhaling a ragged breath, terrified of being caught yet craving it, Kang Yu-ri guided her brother’s hand inside her.
The wet, squelching sound was buried by the movie’s audio.
*
The movie’s runtime was quite long.
Perhaps because it was a biographical chronicle of a certain figure. Throughout the entire film, Kang Yu-ri and Kang Yu-jin repeatedly engaged in secret foreplay and stimulation.
But even that had its limits. Her bright red, swollen clit was exposed defenselessly to her biological brother’s stimulation.
She was producing so much pussy juice that the blanket felt damp and heavy.
Her friend was right there, her friend’s boyfriend was watching with suspicious eyes.
Perhaps due to the sense of crisis—that her life could end the moment they were caught—Kang Yu-ri was receiving every sensation more sensitively than usual.
She was dominated by ambivalent emotions: a desire for stimulation so intense she could never escape it, and a wish to enjoy this subtle, dangerous thrill of nearly being caught.
Finally, realizing she couldn't hold out any longer, she pushed her brother’s hand away.
She closed her legs and tried to push his hand back to fix her underwear.
‘Ah, Oppa.’
Kang Yu-jin’s hand did not retreat. He persistently stimulated her clit. Her waist jerked at the touch of his rubbing thumb, and she barely managed to suppress a moan by biting her lip.
‘Oppa is excited too.’
The persistent stimulation was followed by fingers digging into her pussy. At the sensation of his index and middle fingers—wet with saliva from who knows when—digging inside, she let out a "Heeut" and blocked the escaping breath with the hand she had raised as if to eat popcorn.
‘Ah, I’m going. I’m going again. Again….’
Her vision blurred. As she stifled her gasps with the hand covering her mouth, she even had to stop her entire body from trembling.
The movie was no longer in her mind. At the intense stimulation shaking her entire body, she curled her toes inside her shoes. As his hand scraped against her vaginal walls and pulled out, she repeatedly opened and closed her eyes wide, tears streaming down.
‘I can’t, I can’t take it anymore.’
Her body was exhausted from the climax, her legs trembling. But Kang Yu-ri couldn't wait any longer.
She wanted her brother. Right now, this instant.
However, they couldn't do it here. She had that much rationality left, and more than anything, a vague, unrealistic thought dominated her: that being even a little more secretive would allow her to monopolize her brother’s love.
It was a judgment driven purely by sexual desire. Kang Yu-ri stopped her brother’s hand with a pinch and caught her breath as she looked at his bulging crotch right next to her.
She leaned her body toward him. As she leaned in, his face gradually came into view.
Eyes glistening, drenched in lust; a mouth twitching with possessiveness.
He leaned in as if to kiss her as their faces drew close, but Kang Yu-ri gave a small shake of her head and whispered.
“I’m going to the restroom.”
Only then did the lust in Kang Yu-jin’s eyes recede slightly. He realized exactly what she meant and why she had told him.
So, Kang Yu-jin nodded, and the siblings quietly stood up.
“…Yu-ri?”
“Just going to the restroom.”
“Oh, okay… but….”
“Oppa is going too.”
“Ah, I see. Go ahead.”
The whispered words reminded her of something they had done back at her graduation ceremony. Something they had done secretly in the school restroom.
Unprotected sex to celebrate graduation. An act that had stained Kang Yu-ri’s mind and made her lose consciousness.
Just thinking about it made Kang Yu-ri unable to bear it any longer, so she quietly left the theater while holding her brother’s hand.
The hallways stretching in both directions were quiet, with not a soul in sight. It seemed no other movies had finished yet.
The restroom would be quiet right now. There would be CCTV, but Kang Yu-ri no longer had the luxury to care about such things.
She just wanted her brother endlessly. She wanted his cock to hollow out her insides and fill her with cum.
She wanted to put her underwear back on and feel the cum slowly leaking out of her while they watched the rest of the movie. She wanted to feel the sensation of cum flowing along her vaginal walls, which would be swollen and hot to the point of pain from the friction.
If she could have that, then surely.
“Ngh, haah.”
Kang Yu-ri reached another climax just from the imagination. Seeing his sister hanging her head and shivering, the brother led her as a brother should.
They crossed the now-familiar hallway, found the restroom they knew, and entered the men’s room.
Heading for the innermost stall, he closed the door that normally separated the men’s room from the hallway and entered the stall to stand face-to-face with his sister.
With a face dazed by the afterglow of her climax, Kang Yu-ri looked at her brother’s approaching face.
His handsome face, which shared features with her own face she had seen countless times in the mirror.
The brother who was lovely, who deserved to be loved, and whom she had liked continuously from childhood until now.
Kang Yu-ri pressed her lips against his as if it were their very first kiss.
She felt her brother’s hand wrap around her shoulder, then slowly move down her arm, stroking her forearm, while his erect crotch pressed firmly against her abdomen.
With that, all preparations were complete. She let the honey-thick pussy juice flow between her legs, and trembling at every touch from her brother, she closed her eyes and tangled her tongue with his.
Amidst the wet sounds of their interlocking tongues, Kang Yu-ri ended the kiss first. Struggling to steady her trembling legs and jaw, she turned around.
“Oppa.”
She wiggled her hips and pushed her underwear aside. Viscous pussy juice fell toward the floor with a splatting sound, and Kang Yu-ri urged her brother on even as her legs shook.
“Haa, I’m a bad sister. A bad sister who came while her brother was poking her pussy right next to her friend… punish me. Punish me with pregnancy.”
At those squeezed-out words, Kang Yu-jin let out a ragged breath as if he couldn't hold back any longer and slammed his throbbing, vein-covered erection into his sister’s pussy in one go.
Kang Yu-ri’s consciousness flickered out for a moment before returning. A shock greater than anything that had ever made her lose her senses raced through her entire body from her pussy.
Her vaginal walls, rubbed to the point of soreness, cheered at the familiar cock. It was a wet, squelching cheer.
At that, Kang Yu-ri gripped the back of the toilet and laughed as if she were crying.
‘I love you.’
The words she didn't speak aloud filled her head.