His lips were soft, frantic, and burning against mine. They moved with a raw, breathless desperation, yet their execution was completely tentative—almost completely amateur. It was the clumsiness of a man who had only ever loved in the quiet, repressed corners of his own mind. Realizing he was suffocating the kiss in his panic, I reached up, placing my palms against his lean shoulders, and gently pushed him back a fraction of an inch to give him air.

Hyun-woo’s eyes fluttered open. They were heavy, dark pools of liquid lust and profound vulnerability, silently questioning my sudden resistance. He looked so devastatingly unsure of himself.

I should stop him right now.

The logical, cold voice of the investigator flared up in my mind. I should end this charade by telling him the truth: that I was an undercover operative hired by a former student, Kim Min-jae, to prove he was a calculated child predator. I should force him to look past the illusion of "Ji-ho" and see the grown man standing right in front of him.

But as I looked at the fragile, beautiful surrender in his expression, a wave of sheer, unadulterated selfishness paralyzed me.

If I spoke those words now, the fragile reality we were standing in would vanish. He would be completely furious. He would despise me for the deception, for systematically dismantling his dignity, and this—the intoxicating warmth of his skin, the raw sincerity of his touch—would stop instantly. I couldn't bear to let it go. Not yet.

Instead, I leaned down, my lips brushing his cheek as I whispered, "Seonsaengnim... you said this was wrong."

"It is," he choked out, his lower lip quivering as a fresh wave of tears escaped his eyes, cutting hot tracks down his flushed cheeks. "It is completely wrong... but I am so tired of fighting what I feel, Ji-ho-ah. Since the very first day you walked into my classroom, I have been dying inside. Questioning my own sanity, trying so hard to be a good person... to be an honorable teacher. But I've failed completely. I... I want you."

God, I was so incredibly cruel. I was the absolute worst kind of monster, but the sheer thrill of his confession overrode my conscience. I scrambled completely onto the low double bed, straddling his lap, my knees anchoring his hips as I cupped both sides of his face with my hands. I leaned down and kissed him deeply, catching the salt of his tears on my tongue.

"Don’t cry," I murmured against his mouth. "Please don’t cry, seonsaengnim. Your fever will flare up again. Just let go. I'll make you feel good. So good."

His hands came up to circle my waist, his touch tentative and trembling, but beneath my thighs, I could already feel the hard, rigid length of his arousal pressing against me through his briefs. He was completely at my mercy.

I kissed him again, more gently than I had ever kissed anyone in my entire life. It was a strange, reverent sort of tenderness born from a profound sense of debt; I had put this man through absolute psychological hell, and right now, I wanted to drown him in pleasure. Breaking the contact of our mouths for just a second, I reached down, grabbed the hem of my school sports jersey, and pulled it over my head, discarding it onto the floor.

Taking his trembling hands from my waist, I guided them upward, pressing his palms flat against my stomach, then sliding them slowly up to my bare chest.

"Touch me," I pleaded, genuinely alarmed by how deeply I needed to feel his bare skin against mine.

Hyun-woo let out a soft, broken moan, his fingers shaking as he fulfilled my request. His touch was hesitant, as if he were handling fragile glass, but when his fingertips brushed across my taut nipples, a sharp shiver ran down my spine, and I pinned his hands right there.

"Pinch them, seonsaengnim," I instructed, my voice dropping to a dark, commanding rasp.

He sucked in a sharp breath, his eyes widening as he stared down at my sculpted chest. Breaking the physical distance, he looked at my aching nipples with a look of pure wonder. He squeezed them carefully—far too carefully.

"Harder," I groaned, tilting my pelvis down so the friction hit his groin. "Pull them."

He obliged, letting out a sharp gasp, his body twitching helplessly beneath mine as the raw sensation shot straight to his core. I grabbed his face, tilting his head back to capture his mouth once more. This time, my tongue sought his with an unyielding, greedy hunger. Hyun-woo's tongue was soft, wet, and submissive, but as I licked and sucked at it, teaching him how to take what he wanted, he began to mirror my intensity. Low, muffled moans escaped his throat, his hands moving from my chest to grip my shoulders as he kissed me back with an agonizingly sweet hunger.

Driven by a sudden spike of heat, I slid off his lap, standing up beside the bed. In one fluid motion, I shed my sports trousers and briefs, letting them pool at my feet.

Hyun-woo sat up against the pillows, trembling as he watched me through the dim light of the brass lamp. His arousal was fully evident, a stark, rigid silhouette beneath his briefs. When I stood entirely bare before him, his eyes dropped, and he let out a literal, audible gasp. I was fully engorged, pink, and throbbing slightly in the warm air of the room. I slowly stroked my own length once, letting out a low moan, keeping my eyes riveted directly to his.

Moving closer, I knelt on the edge of the mattress, reaching out to stroke his bottom lip with my thumb. "Are you going to use this sweet mouth to take care of me, seonsaengnim? You look like you want to."

"Ji-ho-ah..." he cried out, completely helpless against the visual overload.

He leaned forward, dropping off the pillows, and slid his lips over the crown of my length. He took me into his mouth, sucking softly at first, his tongue licking down the sensitive underside. Emboldened by my sigh, he pushed deeper, taking me in until the sheer size made him gag, before he pulled back slightly, carefully licking the wetness back up.

I smiled down at his eager, frantic movements, watching the pure joy on his face at finally being allowed to touch what he had forbidden himself from desiring. How many times had he fantasized about this during late-night grading sessions? How many times had he jerked off in the dark to the terrifying thought of me filling his hands?

His mouth pumped faster, his own arousal escalating as my pleasure became unmistakable. Pre-cum began to seep from my tip, and Hyun-woo let out an appreciative moan, tilting his head to lick the fluid from his lips, completely intoxicated by the taste.

"Ahh, seonsaengnim... you're so good at this," I growled, my hands tangling in his copper curls. "You're going to make me come."

At my encouragement, his rhythm turned frantic. He sucked harder, pulling me deeper into his throat until I was practically bottoming out against his chest. He gagged, his eyes tearing up as drool slicked the base of my shaft, but he refused to let go, his lips locked tight around me.

"Shit... fuck..."

The pleasure collapsed into a white-hot wave. I let out a heated cry, quickly pulling back so I wouldn't choke him. I ejaculated powerfully, the thick, white heat dribbling across his flushed cheek, his jaw, and his neck. Even as I pulled away, his mouth chased my length, his greedy lips parting as he tried to catch the remaining taste on his tongue.

"Fuck," I panted, utterly stunned by his enthusiasm.

Hyun-woo didn't seem to care about the mess. He leaned forward, nuzzling his face against my bare thigh, his nose pressing into my skin as if he were trying to imprint the warmth of my body into his memory forever. I reached past him, grabbing my discarded hoodie from the floor, and gently wiped the stray streaks of my semen from his cheek, neck, and shoulder.

Gently pushing him back down onto the sheets, I lay beside his trembling form, capturing his lips in another deep, slow kiss. At the same time, I slid my hand beneath the waistband of his briefs, exposing his rigid, throbbing length and wrapping my fingers around him.

"Ji-ho-ah!" he cried out, his eyes snapping shut as his hips jerked upward into my palm.

Should I top him or let him top me? I wondered, my analytical mind briefly tracking the mechanics of the act. I had done both in my personal life, though my natural instinct was always to dominate. But right now, looking at his total surrender, I was willing to give him whatever his body required.

I stopped the movement of my hand, keeping him right on the edge. "What do you want, seonsaengnim? Do you want to take me, or do you want me to take you?"

He went entirely still, his eyes wide and liquid with sheer arousal. "I... I don't..."

A fierce, burning crimson flooded his face. He turned his head away, unable to hold my gaze. "I mean... I've never..."

"What?" I blinked, completely thrown. "You've never been with anyone before?"

He gave a small, excruciatingly shy nod, burying his face deeper into the pillow. "I dated a girl back in college... but we never had sex. I've always been more attracted to men, but I... I was always too terrified to explore it. I've never been touched like this."

A wave of intense, dark possessiveness washed over me. He was completely untouched. The realization made me want to totally dominate and ruin him in the best way possible—to show him exactly what he had been missing all these years and brand him as mine.

"Don't worry, I’ll take care of you, seonsaengnim," I whispered against his ear, pulling his briefs completely down his legs and throwing them aside. "I'll make you feel really good. I promise."