Treatment by Mouth
Sweat-slicked and pale, her breasts were scattered with crimson dots that glowed with startling clarity. Baek Donghyuk buried his face against the nape of her neck and caught his breath. He had no intention of stopping. Not yet.
His eyes drifted back to Choi Yunjin's chest. Her breasts rose in a generous swell, and at their peaks her nipples had stiffened into tight buds, as if begging for more. He cupped them both, his palms closing around flesh that was warm and yielding, and rolled a hardened nipple beneath his thumb in a slow, circling stroke.
"Nnh...! Ah, Oppa! Stop... I can't take any more...!"
It wasn't refusal. She was simply lost, drowning in a pleasure she had never felt before and had no idea how to weather. The proof came the instant he squeezed — her legs clamped tight around his waist, and her breathing evened out against him.
Her reactions are incredible...
He marveled at it privately, even as his other hand began to knead her breast in earnest. He spread his fingers wide and traced slow circles over the full curve of it, then squeezed and released, squeezed and released, drinking in every variation of that soft, living heat. Bare skin against bare skin was a stimulus no fabric could have prepared him for. Each time he pinched the nipple caught between his fingers, a fine tremor ran through her white flesh.
"Oppa... this feels so strange... nnh!"
"It's alright, Yunjin. This is just treatment. Those knots are loosening up, aren't they?"
"I... I think so... I can't really tell right now... haaahn!"
Choi Yunjin pressed her face into his shoulder and panted, her whole body gone slack, as if she had simply decided to surrender it to him. The sight made him bolder. He flattened his palm over her breast and pressed down, concentrating his Qi until the crimson dots blazed even brighter.
Energy flooded into the clustered crimson marks, forcing them to swell and fuse, burning brighter with every pulse.
Her body lurched hard, a shudder running through her that was nearly a convulsion.
The dots are gathering, clumping together, growing larger.
It meant the unbroken stimulation was winding her tighter, making her more sensitive by the second. Over her shoulder, he could see it clearly now: the faint scatter of crimson around her nipples had spread into a far wider, far hungrier bloom.
"Yunjin. Turn around and sit facing me. I need a better look at your shoulders."
"Huh...? H-how should I... sit...?"
"Look at me. Keep your back straight."
His voice was low and even, but there was something in it that left no room to refuse. She hesitated for a heartbeat, then obeyed. The soft curves of her bare body shifted through the air as she turned, settling slowly into place.
Now he had her from the front. Her breasts were utterly exposed, nothing left to hide them, sweat beading along the pale slopes in fine, trembling drops. Baek Donghyuk swallowed. The shoulder examination had already become a pretext and nothing more.
His gaze locked on the swell of her chest, on nipples flushed a deep, feverish red. The earlier teasing had left them exquisitely raw. The crimson dots shining across her skin seemed to shimmer with want, aching for his hands.
He reached out without hesitation and took her breasts in both palms. The fullness of them, the heat, the faint tremor running under the skin — all of it poured into him, unfiltered.
"Haaah...!"
The moan that broke from her was thicker, wetter, than anything that had come before. Her body tipped forward on instinct, offering itself to his touch. Drawn by the vivid sensation at his fingertips, he caught a nipple between thumb and forefinger and twisted.
"Nnh...! Ah, Oppa...! I-if you do it like that...!"
Her back arched like a drawn bow. Both hands fisted in the bedsheets until her knuckles went white. He did not stop. With his free hand he kneaded the whole of her other breast in slow, rolling circles, and through his palm he felt every minute quiver of that soft flesh, every bright shiver radiating out between her ribs.
The energy... it's flowing so much more smoothly.
The Qi spilling from his fingertips was stronger than before, and far more precise. He could feel himself shaping it, guiding it, as if the current had finally learned his hand.
The crimson marks answered his will, swelling at every point of contact, winding her sensitivity higher and higher. Pleasure and power rose together — his ability had stepped forward another stage.
Choi Yunjin was barely managing anything now but broken, tear-thick sounds.
"Haa... ahhng...! My body... won't do what I tell it to..."
"It's alright. Every bit of this is what your body wants. Feel it, Yunjin. All that tightness in your shoulders is coming undone, just like this."
She didn't have the strength left to argue. She only moaned, her hot breath soaking the side of his neck. His eyes were already hunting the other crimson marks that had bloomed around her breasts — and then, on impulse, he flicked the tip of his tongue against one rigid nipple.
"O-Oppa!"
The cry burst out of her, sharp and startled. To him, the tremor in it sounded less like protest than an invitation. He had barely grazed her, and already the texture of her burned vivid against his tongue.
There was no reason to hesitate.
He opened his mouth and took her in the way a man bites into ripe fruit, drawing her entire left nipple deep into the heat of his mouth. Soft, scalding flesh filled him. He worked his tongue around the stiff bud, pressed it to the roof of his mouth, then sucked hard.
Wet, lewd little sounds — suck, suck — broke the hush of the private room.
"W-wait. What are you— haahk!"
Her body twisted. The hands clenched in the sheets had gone bloodless. Whatever pleading she had left had already collapsed into something closer to a scream. He only grew more relentless, sucking at her nipple as if he meant to draw it into himself. He would lick it in long, slow strokes, then suddenly set his teeth and worry at it, never forgetting to lavish the same thorough attention on the sensitive areola around it.
The way she feels against my tongue, my lips... so soft...
Her violent trembling, the moans tearing out of her — it all fed the hunger in him. When he had sucked that nipple thoroughly enough, he pulled his mouth away. It shone, swollen and flushed a deeper red, glazed with his saliva. He looked at it for a moment, almost admiring, then turned his head to the other side.
"Haa... nnhk... i-is that... is that all...?"
"Yunjin. Treatment doesn't wrap up that easily. Your body's still full of tension that needs to come out. Especially... this side looks worse, doesn't it?"
"J-just let me rest a little— kyaah!"
She barely managed to drag in a breath before he answered her not with words but with his mouth, closing around her right nipple and imprisoning it there. He sucked and licked and bit with a ferocity that outstripped even the left. Her hands flew to his hair and clutched at it, desperate, and the urgency in that grip only excited him more.
He lifted his head long enough to look at her face. Streaked with tears and sweat, panting as if she had run for miles, she looked nothing like the sweet, innocent girl he thought he knew. Her cheeks were burning. Her eyes had gone faintly unfocused. He lowered his mouth to her right nipple again.
This time he took more than the bud — he drew the whole plush areola into his mouth and sucked. His tongue never stopped. He circled the nipple, then caught the tip between his teeth and tugged it out in a long, slow pull. Her body swayed, barely holding itself upright.
"Nnh...! Ah, that hurts, Oppa...! Wait, I need to breathe...!"
"Just relax. You'll be fine."
He savored the flesh filling his mouth as if he were drinking the sweetest juice in the world. Drunk on a taste he had never known, he crushed her breast in his grip and sucked at the nipple in greedy, rhythmic pulls.
"Nngh, aahh, hhiik!"
Her voice had gone hoarse, cracking apart. She locked her legs around his waist and squirmed, fighting to keep from collapsing, every movement soaked in pleasure.
The nipple swelling against his tongue, fat and tight as if it might burst, sent a fierce rush of triumph through him. Her moans. The frantic rise and fall of her chest. The fine trembling he could feel through his entire body. All of it was exquisite.
"I'm going crazy... Oppa, nnhk! I'm really... getting so weird...!"
"There's nothing weird about it. It just means the treatment is working that well."
He licked along her breast without caring that sweat and saliva had mixed there, a taste that was faintly salty and, somewhere underneath, almost sweet. After tormenting the right nipple for a long time, he moved back to the left. It was already swollen from everything he had done to it, and it jumped the instant his lips touched it. Choi Yunjin's eyes were half-lidded; her body hung limp in his arms.
"Haa... haa, Oppa... I'm so tired..."
"Yunjin. Your nipples are standing up so hard."
"Th-that's... ahh!"
He flicked the tip of one nipple with a finger, and she shrieked, clapping her hands over herself. It seemed her mind had finally caught up. The way her face went scarlet with shame was almost painfully cute.
Maybe stopping halfway had been a mistake. They fumbled back into their clothes, and the look they exchanged afterward was unbearably awkward.
Two hours have elapsed. Please vacate the room.
The sudden alarm shattered the silence. Two hours were up — time to leave. Choi Yunjin stuffed her books into her bag like a thief caught in the act and fled the room.