Jinwoo and Sohee went into the theater and found a spot in the very back corner to sit down.
-Seemed like noona was being considerate of Jinwoo's hard-on-
The movie must not have been very popular, because until the ads started, the number of people coming in was noticeably less than those hanging around outside.
There were sporadic groups that looked like adult clubs and families out for an outing with kids.
Most people crowded into the front seats, and in the middle seats, you could see the heads of people who seemed to have come alone popping up here and there.
Hardly anyone came up to the very back row where Jinwoo and Sohee were sitting.
* * *
After the ads ended and the production and distribution logos flashed by, the movie started with a bang.
The first 30 minutes were filled with flashy action scenes that seemed plastered with light and visual effects.
As the story loosened up past the midpoint and the immersion began to wane, Sohee whispered secretly to Jinwoo.
"This movie is so boring~ It's all because you didn't bring your student ID properly!!"
Noona's tone wasn't resentful.
-Rather, it was a cute tone of feigning annoyance-
Every time Sohee spoke, the breath and vibration of her voice seemed to add a tingling sensation to Jinwoo's cock as it reached his ear.
"Sorry~ Next time, I'll make sure to bring my student ID~"
Jinwoo also whispered into noona's ear as if sharing a secret just between the two of them.
Each time Jinwoo's breath tickled, noona slightly twitched her body while listening to his whispers.
To an outsider, the conversation between Jinwoo and Sohee might seem like an older sister scolding her younger brother, but the sensations they felt were evidently quite different.
"I'm sleepy~~!! And it's a bit cold~!"
Sohee whispered again to Jinwoo, then let go of his hand and lifted the armrest between them.
She then gently leaned her head against Jinwoo's shoulder.
In the dark theater, bursts of colorful light from special effects momentarily filled the space from the large screen in front.
Jinwoo adjusted his position and wrapped his arm around Sohee's shoulder.
Leaning slightly towards Jinwoo, Sohee was now embraced by his arm.
Jinwoo began to gently rub the bare skin of noona's shoulder and arm with his palm.
Her mention of being cold seemed to provide a perfect excuse for Jinwoo's lecherous caresses, emboldening him further.
Just like that, Sohee leaned against Jinwoo, feeling his touch without any particular reaction.
Jinwoo felt his heart race and his breath quicken, just as it had when noona clung to him with her chest pressed against him and arms wrapped around him near the park by their house.
* * *
"Take off your panties after the movie ends," Jinwoo whispered into Sohee's ear as he caressed her shoulders and arms, seemingly reaching his limit amidst the darkness and noise of the theater.
Leaning on Jinwoo and feeling his touch, Sohee glanced at his face, then, blushing, nodded silently without saying a word.
Her face was flushed, her breathing rough and heated.
Jinwoo, seeing her nod, moved his hand from her shoulder down to her waist.
Curling his fingers slightly, he delicately touched her waist with the back of his fingers, cautiously moving his hand up and down as he watched her reactions.
Within Jinwoo's embrace, Sohee trembled lightly under the subtle stimulation of his fingers at her waist.
Jinwoo felt her tremble as he moved his hand, then spread his palm wide to encircle her waist fully.
Sohee shuddered heavily but still remained silent, leaning on Jinwoo.
Jinwoo adjusted the pressure of his palm as he moved his hand across her waist, side, and near her chest.
Deep sighs escaped from Sohee.
Soon she whispered into Jinwoo's ear.
"But Jinwoo, aren't you rubbing too much?
Who asks to rub his sister's side like this with his palm?"
-With a voice mixed as if feigning annoyance rather than resisting-
"This.. this way, it will be really wet later, right? I like it when Sohee's panties are soaked~!!"
Their whispers exchanged in a teasing manner, now with no need to hide their true feelings, Jinwoo spoke blatantly to Sohee.
Sohee sighed deeply again, then stretched out her fingers to lightly hit Jinwoo on the head as if to tease him back.
-The touch that felt like no impact at all-
"We... this isn't supposed to happen... right? Mom would freak out if she knew~!!"
Sohee spoke into Jinwoo's ear with a troubled expression.
But as soon as Jinwoo heard that, he moved his hand from her side to tightly grasp her breast.
Jinwoo saw no reason to hesitate any longer.
If Sohee's only worry was getting scolded by their mom, that was something Jinwoo could now easily handle by talking to their mom separately.
Sohee initially looked startled but soon passively accepted Jinwoo's caresses with a blank expression.
With one hand, Jinwoo couldn't even fully grasp Sohee's large and firm breast, which he alternately squeezed and released, whispering slowly into her ear.
"Don't worry, even if we get caught, I'll make sure you don't get scolded, Sohee!!"
Sohee, having her breast continuously fondled, looked at Jinwoo quizzically and without expectation.
Jinwoo kept talking into her ear.
"You know our mom seems to have a bit of a masochistic side? I think I can now keep noona from getting scolded by mom, so you don't need to worry about that anymore!!"
Sohee, either understanding or not understanding Jinwoo's words, continued to wear a blank expression, then as if it no longer mattered, she deeply nestled into Jinwoo's embrace and leaned on him.
* * *
Jinwoo started to earnestly knead Sohee's breasts.
In the back row of the exposed auditorium, there were neither people to disturb them nor eyes to watch.
Jinwoo, while holding Sohee, lifted one of her full, elastic breasts with his hand.
The weight of Sohee's breast heavily pressed down on his entire palm.
Jinwoo then squeezed her large breast again as if wringing it.
-As if each squeeze of the breast meant to moisten her panties, like squeezing water out of the split below-After repeating the same action a few times, Jinwoo put down Sohee's breast he had been supporting with his hand and then spread his entire palm to follow the voluptuous curve of her breast, moving it in a massaging motion.
Jinwoo alternated between caressing the exposed upper part of Sohee's breast and the clothed lower part, trying to feel the entire shape of her breast.
Jinwoo's fingertips gently touched the bare skin of her breast.
Then, moving his fingers slightly lower, he traced a straight line across the smooth bare skin of her breast and the edge of the dress fabric, going back and forth.
Jinwoo gradually moved that boundary line downward.
Little by little, he was exposing the bare skin of Sohee's breast, which had been covered by her dress.
Sohee's breathing became more rapid, and Jinwoo could feel the rise and fall of her chest.
When Jinwoo's fingers had descended enough along her chest, he slightly felt the top of her bra.
Jinwoo slightly pulled the bra forward with his thumb and index finger, creating space and peeking inside to locate the sensitive tip.
The theater was dark, but every time the screen flashed, the faint color and contour of Sohee's flesh and her erect nipples were momentarily visible.
Jinwoo slid his fingers into the gap between Sohee's breast and her bra, gauging the position of her nipple again.
As Jinwoo's fingers touched her nipple, Sohee jerked her body once more.
Jinwoo continued to rub around Sohee's nipple and the sensitive flesh surrounding it until the movie ended.
Sohee, with her legs crossed, poured out endless juices of lust due to Jinwoo's touches.
She was soaking the panties she had promised to give to Jinwoo.