"Mmph...!"
Her heart swelled as if it would burst from the sudden touch.
'Wasn't it just an argument?!'
I-yeon struggled to ignore the strange sensation making her waist tremble as she pushed him hard. But her reversed body only isolated her further.
Kwon Chae-woo held her waist tight and immediately lifted his upper body that had been drooping. Before she knew it, her position had changed and she was lying on the opposite side of the bathtub.
Splash, water overflowed.
"Kwon Chae-woo, th-this is..."
His body, climbing atop her like an attack, blocked every light like an annular eclipse. The man who had completely confined I-yeon's small body murmured with reddened eyes.
"If you're going to sell me off, you should try me first."
"...!"
"I-yeon needs to use me properly before attaching an instruction manual."
He seemed to be deeply hurt.
"Kwon Chae-woo, that's, that's not it."
But I-yeon couldn't bring herself to say the truth—that she had needed the judgment to properly identify his symptoms.
However he interpreted her hesitation, Kwon Chae-woo's reaction was miserable.
"You said you were conservative, so how did you know about swapping? I didn't know the responsible I-yeon would backstab me like this."
"...What?!"
"Were you always thinking like that inside? Can't throw me away because of responsibility, so better mix with other people instead?"
I-yeon learned for the first time that when she was too dumbfounded, she even forgot her native language. Like someone who couldn't speak, she just repeated ah, uh, ah.
"Of course I said I'd do whatever I-yeon wants. So I'll confirm one last time."
His light pupils went cold in an instant.
"Really with another woman... fuck, you want me to go fuck around?"
"...!"
"Is that what you want?"
No, who said... to come after doing that? I-yeon nodded gloomily, thinking the doctor was right about his extremely jumping logic.
"You want that?"
"No!"
She shook her head back and forth. Every time she struggled, the water rippled.
"Explain it properly. Otherwise I'll mistake that I-yeon is passing me off first because she's curious about some other bastard's dick taste."
"...!"
"I'm a bit empty-headed, I have an inferiority complex, you know."
With a face that showed none of that, he shot back coldly.
I-yeon, having grown accustomed to the gentle Kwon Chae-woo, could only stare blankly at his sudden transformation.
He spoke in a pleasant voice, but the emotions congealed inside were like lava compressed into a ball.
At his delicate but intense pleading, I-yeon's chest grew tight. Having always received only garbage-like attention, it was a bit overwhelming for her to handle.
Kwon Chae-woo looked at her barely opening her eyelids with her mouth firmly shut and laughed savagely.
"Is that I-yeon's answer?"
"...N-no-"
"Good. I understood well."
He lowered his head and strongly sucked in I-yeon's lips. His tongue pushed through her lips and penetrated mercilessly inside. The quiet water roughened violently.
"――!"
Her moisture-laden lips opened easily to an absurd degree. The man wrapped I-yeon's tongue to the root and hungrily swallowed her saliva.
His thick eyelashes hung quietly like someone receiving a kiss, but his strongly moving jaw and hot breath were the complete opposite.
Her whole body became bound. From her waist to her tongue to her face, there was no part Kwon Chae-woo didn't grip tightly and rub.
Every time he moved, the water rippled. Every time he breathed roughly, his swelling chest pressed against her soft breasts.
The mucous membranes stuck together and separated, her smooth tongue stirred her mouth lightly, and the sound of helplessly taking her saliva hit the bathroom wall and returned amplified louder than reality. Her earlobes burned hot.
"Mmh..."
Between her thighs, the man's knee suddenly pushed in. Their legs tangled in the water and their upper bodies pressed together.
The man's clearly erect member poked her lower belly. Even just briefly brushing through wet clothes, its hardness was beyond words.
He grabbed I-yeon's breast with his rough hand and gradually lowered his lips to her cheek, ear, and neck.
Every time he sucked in her skin and his tongue licked that spot thickly, her spine shivered. The increasingly hot water crashed against her thin body and broke apart.
Like a beast seeking milk, he pushed up the clothes clinging to her body, forced his arm through, and grabbed her white, perky breast from bottom to top, then pressed his tongue against it without hesitation like drinking from an overflowing wine glass.
"Haa...!"
Finally a moan burst out. If not for her legs tangled with Kwon Chae-woo's, she would have slipped right into the water. I-yeon gripped the bathtub tightly.
"Ha..., haa..."
Just then, her waist lifted without warning and her pants were pulled down. While I-yeon floundered in surprise, his thick hand came in. It happened in an instant.
"Wait...!"
I-yeon pushed his shoulder with strength, but Kwon Chae-woo didn't budge. Instead, he met her eyes as if showing off and sought her lips again.
Every time she turned her head to avoid him, the man persistently followed. His high nose kept pressing her cheek as they joined deeply.
"Mmh..."
His hot palm rubbed over her panties. Strength drained again from her hands that had been trying to push him away. It was a stimulation she was experiencing for the first time in her life.
He slowly rubbed her protruding clitoris, scratched gently, and even shook it side to side. Her curled feet were dyeing bright red.
Ha-eut, the sound of biting her lips and enduring finally popped out of her throat.
His forearm, glimpsed briefly, had veins bulging prominently. Even though the force applied to I-yeon was weak, Kwon Chae-woo distorted one eye and breathed out huskily.
She received that breath.
Every time his tongue wrapped stickily, moans leaked from her throat. The man, noticing I-yeon's excitement, grabbed the back of her head even more firmly. The stronger he pulled her tongue root, the more saliva leaked like water. It all became Kwon Chae-woo's share.
While continuously rubbing her clitoris, he also simultaneously rubbed and pressed both sides of her fleshy vulva.
He scratched following the shape of her genitals with his nails and drew a vivid picture on her wet underwear. Her chest heaved and her lower belly bubbled. Unconsciously, she tensed her buttocks.
When the subtle curves of her vulva were revealed as is, Kwon Chae-woo cursed lowly and licked his lips hungrily.
The moment his fingers spread her panty edges like tearing, heavy water rushed to her bare genitals.
I-yeon exhaled at once like someone who had finished diving and cried out.
"Kwon Chae-woo, you're sick right now—!"
He stopped, all movements ceasing.
I-yeon heaved her chest, haah, haah, hurriedly gathering her breath she hadn't yet composed.
With glossy red lips and languidly relaxed eyes, Kwon Chae-woo readily agreed.
"Yes, it hurts. My dick."
"That's not what I meant...!"
I-yeon bit her lower lip. Even during that, Kwon Chae-woo kept touching her, eyeing only the narrow hole.
The man had eyes like a ghost possessed by a faint film. I-yeon pushed his collarbone with all her might.
"Kwon Chae-woo, don't misunderstand! The hospital said so. Sleeping syndrome has various symptoms appearing together—"
I-yeon hurriedly continued speaking, fearing the man's patience might wear thin.
"Aggression, behavioral abnormalities, excessive libido accompany it. That's exactly what you look like right now!"
"..."
Kwon Chae-woo erased his expression. Then his original gaze, which he had hidden while acting gentle, only chasing after I-yeon, was revealed.
"J-just calm down for a moment and be objective."
Her mouth still tingled from having received his tongue so I-yeon lowered her gaze for no reason.
"...Kwon Chae-woo might actually be sick. The obsession or excitement you show me, all of that could be part of the symptoms. So please stop for a moment."
He let out a hollow laugh.
"Hearing such nutrition-less words."
Kwon Chae-woo tucked her hair behind her ear. His touch was endlessly gentle but his eyes were dark.
"Doing this again."
He lifted his body and leaned his back on the opposite side again. Just separating their bodies that had been stuck together made the heat cool quickly.
"I-yeon must want to believe that."
"...!"
"The doctor's words aren't absolute. Didn't I-yeon subconsciously want that, so you easily accepted it?"
Her chest suddenly ached as if a stake had been driven in.
Just then, he scooped up water with one hand and washed his face. The man who swept his bangs up from there cracked his neck irritably.
"...Fine. Let's say something in my brain is broken so I get hard whenever I see I-yeon."
Light blood flowing from his head dripped drop by drop on his nose bridge.
"Then since I'm not normal—"
Kwon Chae-woo simply undid his buckle as his fully erect member was uncomfortable.
"Does that mean I can treat you roughly?"