I'll Fuck All of You in Turn
And so, for the entire third period, Iseol noona taught every one of them every pose imaginable, just like a yoga instructor.
It wasn’t only stretching. She demonstrated bodyweight exercises for flexibility and core strength with absolute perfection. If they kept these up, their pussies would clamp down harder and their flexibility would become extraordinary. At last I understood the secret behind why academy graduates, even as virgins, adapted so quickly to sex and displayed such outstanding technique. When they trained their pussy-clenching muscles and practiced their skills every single day, how could a college girl just starting out possibly compare? If the graduates kept training, their sex skills would never decline no matter how old they got.
The bell signaling the start of fourth period rang. Noona’s face was lightly sheened with sweat as she smiled brightly and announced,
“Fourth period will be the sexual intercourse practice you’ve all been waiting for.”
The moment the words left her mouth, the entire class quietly squealed with joy. Every pair of college-girl eyes burned with excitement and anticipation as they stole glances at me. In an instant twenty pairs of searing gazes locked onto my body—those lust-soaked looks. No matter how many I received, I never grew tired of them; instead they only stoked my own desire like sweet stimulation.
“For this practice, so that everyone can observe from every angle, we’ll do it in the center of the classroom rather than at the podium. Please clear the space.”
The second she finished speaking, Chaerin, Subin, and every other girl scrambled out of the way. In no time a wide stage for me and Iseol noona’s sex had formed in the middle of the room. Surrounded by her watching disciples, noona carefully laid out a sex yoga mat. She even placed a second mat sideways where my knees would rest so they wouldn’t hurt—such thoughtful care.
Truthfully, she had already tipped me off in advance. We could have held the practice in the Infirmary or the Sex Treatment Room, places that had beds and weren’t so wide open. I had refused flatly. What man would give up the electrifying thrill of fucking this beautiful homeroom teacher right in front of every last one of her students?
Noona immediately reached for the stretch wear clinging to her body. She peeled it off and revealed her lewdly ripe naked form in front of everyone. Aside from me they were all women, yet she still couldn’t help feeling shy; her small nipples slowly began to swell and stand. Every woman’s gaze snapped to me at once. Those eyes carried every emotion imaginable, plus an intense expectation that whispered, Your turn to strip. They wanted me to take my clothes off, to show them my masculine body.
Of course I was confident in my muscular physique, and the air in the classroom was already hot enough that I wasn’t cold, so there was no reason not to. I undressed slowly, giving the girls every chance to eye-fuck my body. When the shirt came off, soft gasps erupted here and there. When I unbuckled my pants and lowered the zipper, a few even swallowed hard.
“Wow…”
“So men really have that many muscles…”
“Hey, didn’t you watch the porn I sent yesterday? The guy’s body was nothing but soft fat.”
“Sihyuk must work out a lot. I heard he went to the pool with Yeji last time—was that true?”
“I want to go to the pool with Sihyuk too…”
Whispers of desire for my naked body rose from every direction. Some girls half-covered their eyes as if embarrassed to look at a naked man. Of course, moments later they spread their fingers and drank their fill of my body and the cock that was already hardening through the gaps.
“Missionary-position intercourse practice… begins now.”
Iseol noona spoke with almost reverent gravity, then knelt before me and assumed the dogeza position. She pressed a moist kiss to the head of my cock as if worshipping it, bringing the already swollen shaft to perfect full hardness. The instant her hot breath touched the glans, my cock twitched in response.
Normally I would have teased her longer with more foreplay, but this was not the time. Countless females were staring at me, swallowing saliva. Besides, noona’s pussy was already soaked enough that it needed no more caressing. Thinking back, since coming to this world I had almost never seen a pussy that wasn’t wet. Except for special cases like Subin, everyone’s lust ran so high that simply stripping their panties in front of a man made their juices pour out.
Noona lay back on the yoga mat and spread her legs. Then, so her students could see clearly, she used both hands to gently pull her pussy lips apart.
Puhk.
“As you all know, this is my pussy. And very soon, Sihyuk’s cock is going to enter this pussy.”
Her voice trembled slightly. Excitement and tension were plain. Looking closer, noona was shaking quite a bit herself. We had fucked plenty of times, but never with this many people watching—that must have been it. And honestly, I was just as nervous. Having to keep a cock hard and even cum in front of so many people made me newly respect porn actors.
The classroom had gone so quiet that no one spoke, so I broke the silence with a short line.
“Everyone can see my cock clearly, right?”
“Yeah.”
“Yes.”
“Cock… I can see it well.”
“Y-yes…”
Some answered calmly, some as if entranced by my cock, others in a daze. My cock had become some kind of hypnotic prop.
“I’m putting it in now, so watch carefully. You’ll all be doing this soon enough.”
I knelt and pressed the head against the entrance of noona’s pussy. The slick, wet opening twitched as if welcoming the glans. The girls’ stares only grew stronger; the tension refused to ease. But a far greater excitement ruled my entire body. Surrounded by women, fully erect and on the verge of penetration, my lust boiled hotter than usual for some reason. Savoring that strange thrill, I locked eyes with noona. Her pupils swayed with desire.
“The cock is going in, n-now—ahh, haaang…!”
Squelch.
Before she could even finish the sentence, under every watching eye my glans vanished inside her pussy. Once the head was swallowed, the shaft followed, sliding in without resistance until it was nearly root-deep.

With an utterly blissful face, noona explained the pleasure she was feeling to her disciples as if broadcasting it live.
“Inside… it’s so full, ahh…! And that thick head… is scraping the good spot, ah, ahhng…!”
Schlick…
I slowly drew my hips back; the cock slid out and the pussy flesh clung and followed. The lewd wet sounds of sex spilled from both her spread pussy and her mouth at the same time.
“Haa, haa, spreading my insides wide open, coming deeper and deeper… that pleasure is, nnngh, so good, fwaaah♡”
Noona’s voice grew sweeter and hotter by the second. Her moans turned more and more obscene as time passed. Everyone must have noticed: she wouldn’t last long before climaxing.
I grabbed one of her big soft breasts with a free hand and flicked the stiffened nipple with my fingers.
“I love how sensitive these nipples get. Touch them and you all lose it.”
I flicked once; her pussy clenched, so I deliberately flicked several more times. Still unsatisfied, I gently stroked the pale-pink areola with a fingertip. The more I did it, the sharper a woman’s nipples became. Later, when she was completely worked up, she would cry out happily even if I bit them.
“All of you will, nngh, learn nipple training for men just like me…! Ahn!”
No one interrupted our conversation. Everyone simply stared with eyes that looked ready to fall out, riveted on the scene of our mating.
Squelch… squelch…
Before long, wet sounds began rising from all around—the sound of fingers working pussies. The girls were so aroused by the sex that they had started masturbating. Masturbating in a classroom was absurd, but then again, me fucking Iseol noona right here was even more absurd. So I didn’t stop them. The wet background music only made me enjoy the situation more.
“Once intercourse begins, your heart races, fuhh, and the man in front of you becomes infinitely lovable…”
I watched noona still diligently explaining, then finally couldn’t hold back and slammed my hips hard.
Thud!
My cock drove all the way to the end of her passage and knocked against her womb. In that instant noona forgot her disciples were watching and screamed in pure pleasure.
“Hgyiiii♡”
The neat, teacherly face from earlier was gone without a trace. Only one heat-crazed female remained—face lost in ecstasy, taking my cock while countless other females watched.