The sound of pages turning filled my ears.
It was reading and problem-solving time. The classroom was silent as all the other students read their books and answered the questions.
I was one of the first to finish. Soon, my thoughts drifted to anything but studying.
Studying... What a drag.
The teacher always said my future depended on studying. That studying was important for my future.
But even with all that, I always felt it was irrelevant.
Seriously, schools don't teach anything interesting or important.
Why the hell do I need to learn about atom structures or the composition of the human body? Not to mention the complex physics or math equations.
For God's sake. Some equations look like a damn essay. I've seen so many numbers in my life I feel traumatized.
"Kurokawa Ren, lost in thought again?"
A mature, slightly velvety voice cut through my thoughts. I slowly turned my head to the owner of the voice.
There she was.
Professor Hoshino Satsuki. At some point, she had entered the room, making me wonder if math class had started early or if I was just too distracted to notice the change in teachers. Either way, it didn't matter.
What mattered now was the view in front of me.
It wasn't her face that caught my attention, but her body — impossible to ignore, even under formal clothes.
Her full breasts pressed subtly against her black blouse, revealing the faint lines of her bra. The black pencil skirt hugged her slim waist before sliding down over her wide hips, outlining every curve with perfection.
"Mr. Kurokawa, my eyes are up here."
Her voice was neutral, with a hint of irony. But it didn't sound like she was angry.
"Oh? Right." I lifted my eyes to meet her face, which happened to be beautiful too.
Her green eyes, narrowed behind thin-framed glasses, stared at me with curiosity — and something unnamed.
Her face was slim and well-shaped. Lightly flushed cheeks and a small nose. Her golden hair fell to her shoulders, complementing her already enchanting face.
But what really caught my attention were her lips: full, naturally pink, curled into a faintly provocative smile.
This woman is teasing me. And the worst part is, she's succeeding.
After smiling once more, savoring the effect she had on me, her expression turned serious as she clapped her hands and addressed the class:
"Students, history class is over. Let's focus on math now."
All the students stopped at the sound of her firm voice, though some still complained:
"Teacher, just a few more minutes."
"Yeah, we're almost done."
Satsuki sighed dramatically before saying:
"Alright, but just ten more minutes."
The unsatisfied students thanked her right away, while those who had already packed up their notebooks took them out again:
"Thanks, teacher!"
"Thanks, Miss Hoshino!"
Great, ten more minutes to do nothing. That's what I thought — but Professor Satsuki had other plans.
"Mr. Kurokawa, since you're finished, would you come with me?" Her green eyes turned to me with a smile that didn't reach her eyes. "I forgot something in the staff room. Could you help me grab it?"
That firm tone of voice... To others, it might have sounded like a request. But I knew — it wasn't a request. It was an invitation.
Without waiting for a reply, she turned and left the room. Her hips swayed with confidence, like she knew I'd follow her.
I got up, pushing my chair back slowly. A few students glanced at me, but quickly returned to their books. Given my not-so-great reputation, no one dared stare or question me directly.
I walked to the door and found her waiting there, leaning slightly toward the hallway. Her floral scent filled the space between us.
"Let's go." That was all she said before she began walking down the long, empty corridor.
We didn't talk during the walk. She walked with confident steps, posture straight and proud, and I followed her silently, watching the subtle movements of her hips with every step.
After a few minutes, we arrived at the empty staff room.
As soon as I entered, she shut the door and locked it.
She turned slowly, leaning her back against the door, crossing her arms and staring at me for long seconds. Beyond the usual desire, there was something different in her eyes.
Anger?
No. It was worse. Jealousy.
"So that's what it was?" Her voice broke the silence.
"What?" I asked, staring at her curiously — though I already knew the answer.
She gave a sarcastic smile.
"Gym. Tuesday. Late afternoon." Her voice was low but full of emotion. "I thought you were studying. But it seems you preferred... other types of lessons."
I sighed. She had seen it.
Satsuki stepped closer, each step echoing. When she was just inches away, her hand rose to fix my tie — an excuse to touch me, since her left hand rested on my chest.
"How could you do that to me?" she asked, not looking me in the eyes. "Don't you have a heart?"
I wanted to answer, but the words stuck in my throat. Nothing I said would matter. I was wrong, and nothing could change that.
She seemed to understand my silence. Her fingers tightened around the tie, slowly pulling me closer until our faces were touching. She whispered with a hot, husky voice:
"You made me feel special... Made me forget my problems..." Her voice grew weaker, softer. "You already had me... So why did you fuck that track team bitch?"
Her eyes were glazed, as if tears were about to fall. Her hands trembled, but her grip on my tie only got stronger.
"Satsuki—"
She silenced me with a kiss. Her lips crashed into mine fiercely, like she wanted to reassert herself — to make me memorize the taste of her mouth.
Her hands let go of the tie and slid down my shirt, pressing the fabric against my chest, tracing the outline of my muscles with her finger.
Her tongue invaded my mouth without hesitation, curling around mine. It felt like she didn't want to give me time to think.
She pulled back for a second, just enough to press her forehead to mine and whisper, her breath shaky:
"I didn't come here to fight, Ren." Her eyes burned, and her body still trembled. "I came to remind you who came first."
She grabbed my hand tightly and guided it to her hip. Her trembling fingers slid up the side of her skirt and, without ceremony, pulled the zipper down. The skirt fell slowly, revealing delicate black lace lingerie — far too elegant for someone claiming to be "professional."
"You think I didn't notice the way you looked at her?" she continued, her voice wavering between pain and lust. "That fake smile... the same one you gave me in the beginning."
She grabbed my hand and pressed it against her hot thigh, guiding it to the wet spot between her legs, over her panties.
"But I'm not like those silly schoolgirls, Ren. I'm your teacher... The only one who really understands you."
With every word, her grip on my hand tightened, as if she wanted me carved into her — as if she wanted to be marked by me. Her legs rubbed together, and her eyes never left mine.
"Make me forget what I saw..." she whispered, now in a tone that was both a plea and a command. "Use me, Ren."
My other hand went to her waist, pulling her firmly toward me. The heat of her body was intense, and the sweet floral perfume she wore blended with the raw scent of desire that now filled the room.
She bit her lower lip, pulling her blouse up until her bra-clad breasts were exposed. Her breathing was already unsteady as she reached behind herself and, with practiced ease, unhooked the clasp and let the fabric fall.
She didn't say anything. And she didn't need to — words didn't matter now.
I pushed her against the door, the sound echoing off the wood. Her eyes widened, but she didn't resist. On the contrary — she spread her legs wider, almost begging in silence.
"This what you want, Satsuki?" I asked in a low voice, my face close to hers.
She nodded, biting her lip, not looking away for even a second.
"I want you to fuck me until I forget her face. Remind me why you chose me first."
And at that moment, she was no longer my teacher. She was just a woman — blinded by jealousy, hungry for affirmation, and ready to be taken.
A wicked smile formed on my face. My hand pushed her panties aside, and two fingers easily slipped inside her soaked pussy.
"Nnnh...!"
A loud moan escaped her lips before she covered her mouth with her hand, trying to muffle the sounds.
She tried to hold back, but the heat between her legs betrayed her. Her knees wobbled, and her forehead rested on my shoulder. Her fingers gripped my arm like she was clinging to me to keep from falling.
"Nngh... Ren..." she whispered, panting against my neck. Her voice was choked, desperate, begging for more.
Her hips were already moving against my fingers, as if searching for a rhythm on their own. I could feel the gentle spasms of her inner flesh squeezing my fingers, soaking my hand with her ever-growing arousal.
"Still jealous?" I whispered in her ear, pushing my fingers a little deeper.
She shuddered violently. Her eyes shut tightly and her breathing turned erratic.
"Yes... but now I just want you to prove I'm still the only one..." Her confession came out in between moans and restrained sobs.
I lowered my head, kissing her neck, savoring the taste of her warm skin. She shivered at the feel of my tongue tracing her collarbone, her breasts pressing against my bare chest as I held her pinned to the door.
"Then don't hide anything from me." I murmured. "I want to see everything, hear everything, Satsuki."
She looked into my eyes, breathless, lips parted. Then she nodded with a slight movement.
My hands slid down her waist, pulling her panties down slowly, until they dropped to the floor with a soft sound.
Satsuki lifted one leg and wrapped it around my waist, pulling me closer, pressing our bodies together with need. Her eyes glowed with lust, her face already flushed, her hair slightly tousled with anticipation.
"Do it right here..." she whispered. "Before I start crying again..."
Without waiting any longer, I undid my belt with one hand, pulling out my erect member and pressing the warm tip against her already slick entrance. She gasped at the touch, her inner muscles tightening in anticipation.
"Ah... R-Ren..." She bit her lip, eyes glassy, and her hands pulled me by the nape, sealing our lips once again.
With one thrust, I entered her fully.
She stifled a cry against my mouth.
Her arms wrapped around me tightly, her whole body trembling from the impact. Her pussy was tight, wet, pulsing — like it was trying to trap me inside.
I held her by the waist and began to move, slowly at first, feeling every contraction, every sigh. But it didn't take long for her to beg for more:
"Harder... more... please..."
I gave her what she asked for. Each thrust made her body slam against the door. The sound of the wood, the heat of our bodies, her muffled moans — it all filled the quiet room like an indecent symphony.
"You're mine, Satsuki. Always have been."
"I am... I-I'm yours..." she answered between moans, her body trembling more and more.
Her orgasms came in waves, uncontrolled, breaking her rhythm. Her legs buckled, and I held her tight, still thrusting even as she screamed my name in a raw voice.
When I came, I buried myself to the hilt, feeling her muscles clench hard as she fell apart in my arms.
We stayed there for a few seconds. Sweaty. Breathless. Until I pulled out, and a thin line of semen began to drip from her pussy down her legs — but she didn't seem to care.
Satsuki rested her head on my shoulder and said softly:
"...don't leave me for someone else..."
"I never promised anyone that." I replied honestly. And even frustrated, she smiled faintly.