Barely recovering her senses, my noona wrapped her legs around my waist as if she were trying to be cute.
"Haa... haa..."
Even while panting hard, she stretched a hand up to my chest and lightly teased my nipple with her fingers.
I'd never really been touched there before. The unfamiliar sensation was ticklish yet strangely pleasant, making my body twitch.
"I'll practice harder next time so I don't disappoint you."
Her voice still hadn't fully returned to reason. The way she sounded both exhausted and happy from climax was adorable.
I gave a small smile, watching her assume the sex was already over.
"Noona, we're not done yet."
At my firm words, her body went stiff.
"Huh? Wait, Sihyuk...! I just came twice...!"
She cried out in a flustered voice. Even for someone like me, she must have thought two climaxes in a row meant we were finished.
But my cock mocked that expectation, remaining rock-hard without the slightest hint of softening.
"Twice isn't enough for me."
I unwrapped the legs coiled around my waist and spread them even wider.
There was no resistance. Of course there wasn't-a woman wasn't supposed to resist during sex.
At the sudden change in position, noona could only stare up at me with wide, round eyes, completely at a loss.
"Huh? Wha...?"
Her hips lifted slightly, tilting her pussy upward. Completely exposed, defenseless, open.
Just like before, her juices gleamed under the light.
Settling myself over her ass put me in the perfect position to slam my cock straight down-the mating posture.
"W-wait, this position feels a little weird...?"
"Yeah, it is a bit unusual."
What was this position called again? Mating press?
I answered her innocent question lightly and put strength into my hips.
-Thud!
"Hyaaah!"
The sensation of burying myself deeper and harder than anything before was incomparable.
The wet, heavy sound of my cock punching into her pussy rang out loudly.
That visual and auditory assault hit her all at once. Her face flushed crimson in an instant.
At the same time, the relentless pounding against her cervix left her unable to think straight.
"Ah! Hnngh! Haaang! W-wait, I'm still...!"
Watching her thrash through another orgasm, completely overwhelmed, filled me with pleasure.
The pretty homeroom teacher in the sharp suit I'd run into earlier in the hallway had vanished without a trace.
What lay pinned beneath me now was nothing more than a female, helplessly conquered by cock, writhing in pure pleasure.
For the first time I realized I had a tendency to torment women with my cock and delight in their reactions.
Sex where we moved in sync was good. Sex where I simply took what I wanted was just as good.
"Noona."
"Hauu... y-yes...? What...?"
"This time I'm doing it my way. You just feel it."
I declared it like a statement of fact and began moving my hips in earnest.
-Slap, slap, slap, slap!
The rhythmic sound of my solid thighs smacking against her ass filled the room.
Even as pleasure scrambled her mind, she still struggled to answer me somehow. That expression was unbearably cute.
"Hnnngh, ah, ah! Ahh, it's so deep...! Aaaang!"
Her moans drowned out the creaking of the bed.
I stopped thinking about using my weight to press down and focused on piercing her instead. Her reactions grew even more intense.
Apparently this world had no concept of the mating press. Noona shook her head wildly from side to side.
"I don't know, I don't know this...! Hyaa, hiiit...!"
Her pussy clenched tight around me, but after coming so recently I was still a long way from finishing.
"Noona."
"Haaang...?"
"You're really beautiful."
"A-ah... th-thank... you..."
Being fucked by a younger man while moaning must have embarrassed her; she tried to turn her face away. So I deliberately caught her cheeks, forced her eyes to meet mine, and spoke sweetly.
"You're cute."
"Hnnn..."
-Slap!
I snapped my hips again, slower this time. Every time the head of my cock knocked against her cervix she gasped, spilling hot breath.
"From now on, when it's just the two of us, I'll call you noona instead of Teacher."
I'd already been calling her noona casually when we were alone, but I wanted to make it official.
"Y-yes, yes...! Ah, wait...!"
Her lips pressed tight. Her thighs began to tremble.
Another climax was building.
"You have to answer me, Iseol noona."
"Yeees... I-I like it...! I like it! I like it so much!"
Her pussy clamped down on me hard once more.
"Haaaaaang! I'm, I'm coming...!"
-Spurt!
"Hyaaaaang!"
She screamed as a fresh orgasm crashed over her.
I hadn't even been thrusting that long. She came far too easily.
Was she especially weak to this downward angle?
Her pussy convulsed violently, squeezing my cock in tight pulses.
Fucking her while she was still climaxing and clenched felt completely different.
I licked her breasts, her collarbone, her throat while I kept pounding her, her head thrown back from the intensity of it all.
-Thud, thud, thud!
She was so far gone she could only make choked little "ugh, ugh" sounds, drool trailing from the corner of her mouth.
Even though she'd just squirted, her pussy still gripped me so tightly that every thrust dragged her folds with me, and the constant knocking of my cockhead against her cervix was obscenely erotic.
A few more minutes of that and she came again. These women really were premature, weren't they?
"Hiit, hiik, hick...!"
Maybe her stamina had run out; this time she couldn't even form words, just hiccuping gasps while her arms shook uncontrollably.
The moment she hit the peak of yet another orgasm, my own climax surged up hard and fast.
"Coming!"
I slammed my cock all the way down, pressing the head flush against her cervix, and poured out a thick load of fresh, hot cum.
-Brrrrt...! Brrrrrrt...!
"Hooo..."
The pleasure of ejaculation was, as always, perfect.
Even after I finished, I stayed on top of her for a long time, neither climbing off nor pulling out.
-x-X-x-
And just like that, our fierce bout of sex came to an end.
The air inside the sexual processing room was hot and thick. The scent of my sweat mixed with Iseol noona's, of the cum I'd pumped into her again and again, and of her own juices, clung sticky and heavy.
The bedsheets were already soaked through and stained with fluids no one could tell apart anymore.
"Huu... huu... huu..."
Iseol noona was half out of her mind.
Her body, completely melted by pleasure, lay naked and limp across the bed without a single thread covering her.
Sweat-damp black hair stuck messily to the flushed nape of her neck. Her red lips parted slightly, thin breaths slipping between them.
The body I had made climax so many times still twitched faintly, unable to escape the aftershocks.
Even when I called her name she answered only with faint moans, and when I shifted my hips a little the pussy that had clenched so fiercely earlier had already lost some of its strength.
That lack of reaction cooled my excitement a little. Without her responses it just wasn't as hot.
But while my mind was cooling off, my body was telling an entirely different story.
Even after coming several times, my cock was still swollen hard.
It stood upright, menacing, as if demanding the next woman.
This thing really is a monster.
I clicked my tongue and climbed off the bed.
Dragging my sticky body, I headed into the shower attached to the sexual processing room.
- Shhhhhhhh.
Warm water cascaded down over me.
Iseol noona's scent and every trace of our intense sex rinsed away with the foam.
And strangely enough, the heavy thoughts that had been weighing on my mind seemed to wash away with the water as well.
The note that had been pressing down on me for a while now surfaced in my thoughts, but this time it brought no real anxiety.
Instead, the vivid memory of the fierce pleasure that had ruled my body only moments ago stood out in sharp contrast to that unease.
"Feels good..."
I muttered without thinking.
It felt good. Just this feeling of washing up after sex felt good.
Letting instinct lead me into sex felt far better and more profitable than filling my head with complicated thoughts.
I let out a short laugh.
I'd been overthinking everything.
Test subjects, surveillance, personality swaps-those were all nothing more than uncertain hypotheses.
Sex, on the other hand, was real, immediate pleasure right in front of me.
If one round of sex could empty my head and make me this happy so easily, why had I been clinging so seriously to those headaches?
Yeah. Maybe possession was the right answer after all. Honestly, it felt like possession was correct.
It was the most comfortable conclusion, the one that let me accept the current situation most enjoyably. This way was far happier. I decided to think of it that way.
Hypotheses and all that headache stuff can wait. For now...
For now, I'd just enjoy myself.
Ignore the annoying things and just fuck the women who came my way, right?
After finishing my shower and drying my hair, I established a new principle of action.
Have fun. Fuck women however I want. If I picked up information along the way, fine. If not, also fine.
"Hoo..."
I let out a long breath and shook off the last of the tension inside me.
Sex was magnificent.
It was the best exercise for wiping away complicated worries.
Thinking it over again, possession still seemed more likely than some deliberate personality swap.
How could anyone fabricate memories this vast and detailed?
And it was hard to believe they would go to that trouble for someone as ordinary as me. What would they even gain by brainwashing a nobody?
-x-X-x-
After finishing my shower and opening the door, I found Lee Seol noona already recovered and perched on the edge of the bed, waiting for me.
She was wearing nothing but a loose white dress shirt she must have found in the shower room-probably one of the spare outfits stocked in the sexual relief room.
A few buttons left undone left the full, soft valley of her cleavage on precarious display, still marked by the kiss marks I had left not long ago.
At that sight, the lust I thought I had washed away under the shower came surging right back up.
"Sihyuk..."
When I sat down beside her, noona called my name in a low voice.
"Sorry I couldn't help you with your shower."
The apology came out of nowhere. I couldn't help a short laugh.
How was I supposed to get shower service from someone who'd been half-unconscious? I stretched out my arm naturally.
"Just a second."
At my words her body tensed again. She must have thought I was about to go for another round.
Enjoying that reaction, I eased her down onto the bed and carefully slid my arm under her neck.
A classic arm-pillow position.
*This makes talking easier, doesn't it?"
There wasn't any deep meaning to it. The bed was right there, so lying down to talk just seemed more comfortable.
And after having sex twice already, I wanted to feel a little more like lovers while we lay there.
Her body went stiff under my arm.
Startled by the sudden closeness, her eyes darted around, unable to settle.
When our gazes met she flinched and whipped her head away. The flushed tips of her ears gave her feelings away completely.
Having a man offer his arm as a pillow must have felt pretty good.
"Cute."
I gently cupped her cheek and turned her face back toward me.
Drawn by my hand, noona's face drifted slowly closer.
Moist eyes, slightly parted lips, a completely unguarded expression-I couldn't hold back any longer and pressed my mouth to hers.
Smooch.
At first it was only a light brush of lips. A hot breath slipped out between her startled, parted lips.
Excited by that softness, I couldn't resist slipping my tongue in just a little,
"Mmnh...!"
Her shoulders trembled finely. But she didn't seem to dislike it; soon she closed her eyes and accepted the kiss.
I don't know how long it lasted. When I finally pulled away, her face had gone completely soft and undone.
It was adorable how she could still get shy over a light kiss after the rough sex we'd just had. I pulled her a little closer into my arms.
"If it's uncomfortable, want me to pull my arm out?"
"...No. Keep... doing it."
She burrowed deeper into my chest and whispered. The arm pillow must have felt really nice.
I held her tighter. She let out a happy little sigh and buried her face against my chest.
Just like that we lay there for nearly an hour, talking about this and that.
"Noona, you're this pretty-why haven't you gotten married?"
At my question she laughed softly into my arms.
"Pretty... that's the first time I've ever heard that."
"Liar. With that face, you've never been told that before?"
"Mm. Women only care about being chosen by a man. And to men I was probably just one of the girls who looked decent enough."
A faint resignation colored her voice.
I was starting to understand just how deep a wound it was for the women of this world to go unchosen by a man.
"Those guys were idiots. Not recognizing a treasure like you."
I stroked her hair gently as I spoke. Under my hand her body melted even softer, like a cat.
"Sihyuk."
"Yeah, noona."
"You... really have a strong sex drive. I was taught most men aren't like this."
"Is that so? I thought this was normal."
I lied with a straight face. She rubbed her cheek against my chest and whispered,
"Other men get tired the second sex is over. Holding someone afterward, talking like this... they can't even imagine it."
"I like it, though. Your body is so warm and soft. I want to keep holding you."
Her body gave a little jolt at my words. Then, almost too quiet to hear, she murmured,
"...I like it too."
For some reason, from the moment I'd given her my arm as a pillow, she had started acting spoiled with me.
We kept chatting about trivial things after that.
How she had become a teacher right after graduating from the academy, how she still hadn't found a
man to marry, how she hated smoking and drinking-every little story.
I listened to all of it without a word.
Then, as if by unspoken agreement, we drifted off to sleep in each other's warmth.
-x-X-x-
I don't know how long I slept. A bell rang throughout the entire academy.
It was the signal that major classes had ended. I slowly opened my eyes.
The first thing that filled my vision was Lee Seol noona's face, nestled snugly in my arms, breathing soft and even in sleep.
Her long lashes cast delicate shadows on her cheeks, and steady breaths slipped from her straight nose.
The usual neat, mature teacher was nowhere to be found-only a cute, completely unguarded face with every wall down.
A smile rose on my lips at the peaceful sight.
But it was time to go. Carefully, I woke her and slipped my arm free, then stood from the bed.
"Noona, class is over. You've got to go do closing homeroom."
"Mmnh..."
At my call she stirred in her sleep and opened her eyes.
"Noona, you need to get dressed."
I tossed her the neat skirt suit still lying around and left the room while she was still dawdling on the bed.
"I'll head out first, Teacher."
Walking into class together with my homeroom teacher would have felt weird, so I went ahead.
"...Yes. Take care, Sihyuk."
She looked a little disappointed at having to use formal speech. She must have wanted to keep talking casually.
The hallway, emptied by the end of major classes, was quiet and full of sunlight.
I walked slowly, replaying the lingering heat of the intense sex we'd just had.
That was when it happened. A familiar figure rounded the far corner of the corridor.
Seo Yeji.
She looked like she had just finished working out; her whole body glistened with sweat.
The usual energetic Yeji spotted me too.
"Oh, Class Prez?"
She stopped short for a second, looking surprised.
Her outfit... it was almost more wholesome to just be naked.
First, the sweat-soaked white sports bra.
The clear outline of her huge breasts-easily G-cups-showed through the thin fabric.
Even without being erect, her nipples pressed against the wet cloth with a lewd, unignorable presence.
When I dropped my gaze lower, I found a pair of blue bloomers stretched so tight over her body that the cleft of her ass was practically carved into the fabric.
With every step she took, her firm, athletic hips swayed left and right in a mouthwatering rhythm.
Sweat gleaming on her neck and thighs, her chest rising and falling with each heavy breath, and her wet ponytail fluttering in the breeze.
Yeji's body was health and sexiness incarnate.
"Workout over?"
"Yeah, finished a bit ago."
Yeji grinned as she answered. That smile had a refreshing openness you didn't see in most other girls.
The healthy, salty scent of a woman who'd just finished exercising drifted from her body.
Strangely enough, the smell coming off Yeji felt attractive.
It was an instinct-stirring scent that artificial perfume couldn't come close to matching.
Am I a pervert?
I marveled inwardly-at a body that got turned on by sweat, and at Yeji, whose sweat didn't even bother me.
If other women were like obedient livestock, Yeji gave off the feel of an untamed wild horse.
I wondered what it would feel like to have sex with a girl like her. While that thought ran through my head, my cock swelled heavy again.
Afraid she might notice the erection, I hurriedly changed the subject.
"So what are you doing in front of the infirmary? Did you get hurt?"
"Ah, I wiped out during track practice a few days ago. The bandage came off, so I was gonna get a new one."
Yeji pointed at her knee like it was nothing.
I left her with a couple of worried words and headed back to class.
The classroom was already noisy with the female students who had finished their afternoon major classes.
Their gazes all poured onto me at once, but I was getting pretty used to it by now.
While Chaerin and Soobin chatted beside me, Yeji returned, and before long Lee Seol noona was back
as well.
"Tomorrow we will learn the pillar-blowjob technique and proceed with the advanced course: deepthroat theory and practice."
"Also, on Friday we will have an orientation for club activities instead of major classes, so please keep that in mind. That concludes today's class."
Once she finished the announcements, noona's eyes naturally found mine.
I met her gaze and mouthed words only she could see, speaking them silently with my lips.
"Today's sex... was the best."
Whether she understood the compliment or was simply happy a man was moving his mouth for her, the tips of her ears flushed faintly.
She gave a small smile and nodded. That look seemed to say, Next time we have sex, I'll do even better.
"Sihyuk, want to come over for dinner at my place again today?"
Subin's voice carried more courage than it had the day before, along with an eagerness she couldn't quite hide. Even though Chaerin had interrupted her confession, she seemed genuinely happy about the positive things I'd said regarding HSDD.
I nodded at her invitation without hesitation. Chaerin didn't refuse either. When both of us agreed to go, Subin lit up and casually linked her arm through mine. The soft, full press of her breast against my forearm made the corner of my mouth twitch.
Chaerin saw it and let out a short, incredulous laugh. Then, as if to make a point, she hooked her own arm through my other side-harder than Subin, with a possessive squeeze that said she owned me. That arm got crushed against her chest too, and it felt just as good. I wanted to grab both pairs of breasts and knead them right then and there.
This feels just like being a king.
I walked along in complete satisfaction, the breasts of two women who ranked in the top one percent of Korean beauty pressed against both my arms. Other women we passed stared with a mix of envy and jealousy. It wasn't me they were jealous of it was Chaerin and Subin they envied.
When we arrived at Subin's house, a cozy, warm air welcomed us in. We dropped our bags and gathered around the living-room table to pick up the board game we'd started last time-buying land, selling it, getting stranded on uninhabited islands. I pretended to focus on the game, but my eyes kept drifting to Chaerin and Subin's bodies.
Every time Chaerin leaned forward to check the dice, I caught a glimpse of white underwear and cleavage through the loose neckline of her top. Every time Subin stretched out a hand for a card, her slender wrist and pale nape came into view. Every little movement stirred the male animal inside me. After experiencing the fellatio of countless college girls and sex with the health teacher and Seol-noona, my body had grown far more sensitive to women than before.
"You two both major in economics, right? How were classes?"
I spoke up first, hoping to shift the mood.
"Boring. I thought we'd learn how to make money, but all we do is memorize terms."
Chaerin shook her head as she answered. Subin gave a small nod of agreement.
"Later I'll make tons of money and buy you both lots of delicious food."
At Chaerin's words, Subin and I both burst out laughing. We kept playing, laughing and chatting, and an hour slipped by before we knew it. Just as we were starting to get tired of the game, Subin hesitated a moment, then carefully suggested something.
"Want to look at some old photo albums together? It might help Sihyuk get his memories back."
"Albums?"
When I sounded curious, Subin dashed off to the study as if she'd been waiting for the chance and came back with a thick album lightly dusted with age. We settled side by side on the sofa and opened it. The first page showed the three of us standing together, looking like middle-schoolers.
"Whoa, remember this? Sihyuk, you almost got kidnapped by some random van that showed up out of nowhere."
"Me?"
"Yeah. Subin and I started screaming and blocking the way, and Subin's aunt who happened to be nearby stepped in and helped."
"Ah... I guess that happened."
I had no memory of it at all, but Chaerin's vivid description made the scene flicker vaguely in my mind. And "Subin's aunt" was a name I was hearing for the first time. Looking back, it seemed the old me had a pretty rough time because of women.
We spent a long while laughing and talking over the albums, and before we knew it the sky outside had grown dark. Chaerin, who'd drunk a ton of soda, headed to the bathroom, while Subin and I started putting the albums away. As I was sliding one back onto the shelf, something odd struck me.
"Why aren't there any photos from before middle school?"
We were childhood friends. From the diary, it seemed we'd been close since before kindergarten. So why were there only photos of us together from middle school onward? At my question Subin's body went still. It was only for a second, but I sensed her hesitating over something.
"... The albums with the older photos got lost when we moved. It's a shame-if we still had them I would've shown you today."
Something about the answer felt off and I was about to press further when the front door opened.
"I'm home, Subin.
A languid yet elegant voice. I turned my head and a woman stepped into view. The person who walked into the living room looked so much like Subin... her older sister? For a moment I even thought her sister might be a model or actress. Thick, luxurious blonde hair swayed over her shoulders, and her features were as sharply defined as a sculpture. The form-fitting office look she wore left her unreal body completely unhidden. Sharp blue eyes swept the living room and paused on me. Pretty, but strict and flawless that was my first impression.
"Oh my, we have guests. Sihyuk, is that you? Nice to see you."
She recognized me and the stern look softened into a gentle smile.
"Hello... uh, Subin's older sister...?"
"What?"
At my words she covered her mouth and laughed as if delighted. It was a refined laugh that was hard to describe-just hearing it made you feel good. That single laugh melted the atmosphere in an instant. Even her smile was that elegant. I couldn't help admiring it inwardly.
"Older sister? I'm Subin's mother."
"Ah? Wait, what? Wow, you look incredibly young. I'm sorry I didn't recognize you."
I wasn't joking. Subin's mother looked no older than her early-to-mid twenties no matter how you sliced it. Did women age slowly in this world? Or was this woman just special? I was thoroughly confused.
'Not at all. I'm the one who should thank you for thinking I look young."
Chaerin, who'd finished washing her hands and come out of the bathroom, spotted Subin's mother and greeted her too.
'Auntie, you're back?"
"Chaerin came too. It's been a while."
Even though this was the first time I was seeing her face, she spoke as if she knew both Chaerin and me very well. Hiding behind the shield of amnesia, I gave an awkward smile.
'Ah, right. You have amnesia. I'm sorry."
She walked over and held out her hand.
"Nice to meet you. I'm Subin's mother, Han Danbi."
When I took her hand I was struck by fresh surprise. Up close it was clear she didn't just look young because of makeup-she truly was. Her beautiful face was the spitting image of Subin's, but the mature aura forged by the years gave her an elegant presence. Her body was even more so. Larger breasts than Subin's, a slender waist, and wide hips-she was sex itself, pure arousal for any man. When she gazed at me with those light-blue eyes and smiled, my heart dropped with a heavy thump.
So this is a real MILF...
'Back in the day you siblings used to play at our house all the time. We lived in the same neighborhood and moved here together."
She unpacked, sat on the sofa, and naturally steered the conversation by talking about old memories. Chaerin seemed to know her well too and chatted comfortably.
'It's been so long since we had guests-Auntie will treat you to something delicious. What do you want to eat?"
She pulled out her wallet as she asked. Chaerin and Subin excitedly shouted for jokbal and raw fish, and she cheerfully ordered delivery. A little later the living-room table was covered with glistening jokbal, fresh sashimi, a bit of whiskey, and two bottles of soju.
"Go on, eat plenty."
Danbi-ssi... or should I say Danbi-noona? Danbi-ajumma? She looked so young that every form of address felt awkward. Anyway, Danbi-ssi personally placed a glossy piece of jokbal on my plate. That kind gesture gradually eased the awkwardness I'd been feeling. The four of us sat around the table and enjoyed dinner in a warm, lively atmosphere.
'Food Auntie buys is always the best!"
Chaerin downed a shot of soju and spoke cheerfully. Subin smiled softly beside her and nodded.
"Drink as much as you want. There's more liquor."
Danbi-ssi watched us with a contented smile and refilled our glasses. Caught up in the first family-like atmosphere I'd ever felt, I knocked back several glasses in a row. Once the alcohol hit, my body loosened and my mood lifted. We kept drinking until the soju bottles eventually ran dry.
'Oh, we're out of soju. I'll go buy more!"
Chaerin shot to her feet. Subin said she'd go with her and stood up as well. Just like that, Chaerin and Subin headed for the front door, leaving Danbi-ssi and me alone in the living room. A slightly awkward silence settled between us. She was the one who broke it.
"Sihyuk."
Her voice, already lightly flushed with drink, was even softer and more languid than before.
'Is our Subin doing well at the academy? She's so introverted I always worry."
"Yes. She's doing fine. Since she's in the same class as Chaerin and me, it should be even better."
'That's a relief. Having you by her side really puts my mind at ease."
She looked at me with eyes full of genuine gratitude. Then, after a brief hesitation, she lowered her voice as if confiding a secret.
"You may have forgotten, but... Subin is a child I conceived alone with sperm from a bank and raised by myself. Because of my work I was always busy, so she was lonely from a young age."
Hearing her talk about her own daughter with that young face made it a little hard to relate, but I listened as quietly as I could.
"Then you and Chaerin appeared and became her friends. If you hadn't been there for her back then... just imagining what might have happened to her is terrifying. I'm truly grateful."
The corners of her eyes had grown moist.
'If you're ever sick or going through something hard, tell me anytime. I work at a hospital, so I can help with anything."
At her sincere words I nodded.
"Yes, I will. I'm happy I've gotten close with Subin again too."
At my answer a bright smile bloomed on her face.
"What a good boy. I'm grateful as well. Come on-shall we toast with Auntie?"
She held out her whiskey glass toward me. Our glasses clinked together.
-Clink.
A clear ring hung in the air as our eyes met and tangled in the empty space between us.
In that instant, my breath caught.
Maybe it was the alcohol. Under the soft lighting her face looked impossibly beautiful.
Slightly unfocused eyes, flushed cheeks, moist lips.
She's my friend's mom. My friend's mom...!
I screamed it desperately inside my head, yet my gaze drifted of its own accord straight to her chest.
Danbi had come home and changed into comfortable clothes. The thin gray sweatshirt had a wide neckline that left her dizzying cleavage on full, vivid display.
Every time she took a sip, those soft mounds rose and fell ever so slightly, and heat pooled low in my belly.
Gulp.
I swallowed dryly without meaning to.
The sensation of blood rushing downward was vivid. My cock twitched inside my pants and began to swell.
Damn it. Getting hard looking at my friend's mom. I'm a sick bastard.
I forced my eyes away and downed the soju as if nothing were wrong. But it was already too late.
Danbi knew exactly where my gaze had been.
Fortunately, she didn't seem to understand why I'd been staring at her chest.
Well, in this world men didn't usually look at a woman's breasts with sexual eyes.
"Is there something on Auntie's chest?"
She dipped her head and peered down at herself, but of course nothing was there.
I stammered, not knowing what to say.
What saved me was the sound of the front door opening.
"We're back!"
Chaerin and Subin returned carrying bags of alcohol and snacks. I had never been so glad to hear anything in my life.
Danbi put on her gentle smile again as if nothing had happened and welcomed Subin and Chaerin.
"Oh my, you're back already. Good work."
"Should we get more?"
Chaerin shook the bag. Inside were a couple of soju bottles and a few packs of snacks.
"That's plenty. Sit, sit."
I watched Chaerin and Subin settle back at the table, and my eyes met Subin's.
What if I made Subin give me a blowjob right now, in front of Danbi?
The insane thought flashed through me and my cock jerked.
I shook my head hard, banishing the filthy fantasy. That would be way too much for my conscience.
But... if I asked for sexual relief, would Subin refuse?
Maybe even Danbi would take it as something completely ordinary.
Just imagining it finished the job; I was fully hard. I stayed seated for a long while, pretending nothing was wrong, trying to hide the tent in my pants.
"Alright, let's drink again!"
Chaerin excitedly cracked open a soju bottle. We refilled our glasses and drank while chatting about nothing important.
"What was Subin like when she was little?"
When I asked, Danbi's eyes narrowed as if sinking into memory.
"Subin? She was so quiet it was almost scary. Always reading books. I used to worry she had no friends, and then you showed up, Sihyuk..."
"Mom! Stop with the old stories."
Subin, embarrassed, tried to cut her mother off.
"Why, what's the harm? Sihyuk looked after you so much. Every time the other girls picked on you, he was the one who stepped in."
"Did I?"
I asked with a face that truly didn't remember. Chaerin chimed in from the side.
"Yeah. The three of us hung out together from then on."
"Me?"
"Mm. You must've felt like a little sister who needed looking after."
"Come to think of it, what are you learning at the academy these days? Studying the Male Protection Act right now?"
"We're learning blowjobs lately. Especially Subin and Chaerin-they're both working really hard at the academy."
"W-what are you saying all of a sudden!"
The sudden dirty talk made Chaerin kick my leg under the table. But she couldn't hide the way the corners of her mouth lifted at the praise.
Subin, who had been praised alongside her, flushed so hard her face looked ready to burst and dropped her gaze.
Seeing that, Danbi's eyes sparkled with interest.
"Oh my, really? Our Subin? She never said a word, so I was worried. No wonder the cucumbers in the fridge keep disappearing-you've been practicing?"
"Mom! Why would you say that...!"
Subin's teary cry turned the living room into a sea of laughter.
Danbi couldn't hold back her giggles as she stroked her daughter's hair.
"That's my girl. Work hard so a wonderful man like Sihyuk chooses you."
"Sihyuk's already been our practice model, so we're learning a lot."
At Subin's words that I had volunteered as the practice model, Danbi's eyes went round.
"Really? Most men find that kind of thing bothersome and embarrassing. To make that kind of sacrifice... you're really thoughtful."
The sincere praise made me a little shy.
"Ah, it's nothing."
"Nothing? There just weren't any men like you around, so Auntie has never even properly seen a man's thing in her whole life."
Danbi said it with a laugh, as if it were nothing. But that single sentence detonated like a bomb inside my head.
Never seen one? Well, if she got pregnant with sperm-bank sperm, she might never have seen a cock.
Thinking about it only made me harder.
The cock I had barely managed to calm down reared its head again with a vengeance.
I changed the subject as naturally as I could.
"Y-you said you work at the hospital, right? That must be tough."
"It is. Especially since I handle brain surgery-lots of high-strung people. Today some patient came in yelling that he knew better than me. Why would anyone say that to a doctor?"
She shook her head with a bitter smile.
And so the drinking continued.
Several hours slipped by before it was finally time to leave.
All of us were thoroughly drunk and rose from our seats in high spirits.
"Come play again next time."
Danbi walked us all the way to the front door to see Chaerin off.
On the way home Chaerin was completely wasted and leaned her whole weight against me.
"Hehe, Sihyuk..."
All her usual tsundere prickliness had vanished. Drunk Chaerin was nothing but an adorable twin little sister. A twin little sister with a really big pair of tits.
I supported her as we headed home.
The moment we got inside, Chaerin flopped into a chair. Then she looked up at me with unfocused eyes and grinned.
"Hey... you're hard again?"
Her gaze was locked on the front of my pants.
I couldn't deny it.
Between Danbi's unintentional cleavage temptation, the alcohol, and the warmth of Chaerin pressed against me right now, my cock had been rock-hard for a long time.
"Want me to... take care of it?"
Chaerin whispered in a languid voice and threw herself into my arms.
The soft crush of her breasts against my chest. I couldn't resist that temptation.
If I accepted sexual relief right now, we would end up having sex. That much was certain. I wouldn't be able to hold back. And Chaerin wouldn't refuse either.
Should I do it? Should I? Sibling sex should I just go for it?
I held Chaerin and kept wrestling with the thought.
Even if this was a body I'd possessed, we shared blood. Was it really okay to fuck her?
She seemed to like me, but was it alright to maul those huge tits, slam into her pussy, and dump my cum inside her?
-Throb.
My cock, poking lightly against Chaerin's stomach, answered first.
Do it. Fuck her.
"Take care of me."
The second the words left my mouth, Chaerin let out a soft snore.
She had fallen asleep the moment she nestled into my arms.
"...."
I looked back and forth between Chaerin sleeping peacefully and my cock, still stiff as a board.
Damn it.
-x-X-x-
The next morning I filled up on the kimchi stew Chaerin had made and headed to the academy.
The moment I stepped through the academy gates I could feel the girls staring even harder than yesterday.
Apparently the rumor that I had served as the glans-blowjob practice model for the girls in my class had spread across the entire campus overnight.
Now it wasn't just the female students even the female teachers were sending me blatantly heated looks.
I'm basically a celebrity.
I didn't mind the attention. It even felt natural. In this world, that was simply what a man was.
Enjoying the countless female gazes, I arrived at the classroom with Chaerin and Subin.
When the bell rang, our homeroom teacher, Noona Lee Seol, walked in as well.
Today she wasn't in a suit but a neat navy dress; the modest outfit only made her large chest look even more alluring, giving off a strangely erotic air.
"Alright, everyone take your seats. Yesterday we learned the basics of glans service, so today we'll move on to the next stage-shaft service techniques."
Almost every girl in the class wore an expectant expression. A few of them glanced my way. Their eyes mixed with the anticipation of I might get to put that cock in my mouth later.
"The shaft isn't as sensitive as the glans, but it makes up most of a man's penis and is a vital area. How you handle it completely changes the depth and duration of the pleasure."
"You must perfectly control every space inside your mouth. The ultimate goal is a blowjob-ready oral pussy that can wrap a man's cock gently while still delivering powerful, varied stimulation."
At that blunt phrasing I swallowed without thinking.
The girls in the classroom likewise held their breath, opened their textbooks, and focused on Noona's explanation.
Iseol-noona first brought up a complex anatomical diagram of the human body on the screen.
A theoretical lecture followed on how the muscles of the oral cavity-lips, cheeks, tongue, palate-moved, and how one generated the pressure required for a proper blowjob.
"When performing fellatio, you must not rely on the tongue alone. Fellatio demands that you put everything to use: the pursing strength of the lips, the soft pressure from the flesh inside the cheeks, the firm friction of the palate, and more."
Once the theory was done, she handed out the practice tools. They were silicone dildos a little smaller than my cock-though with pressure sensors packed densely across their surfaces, they were nothing like ordinary toys.
"All right. From this moment, we begin pressure-control training. Match the target pressure that appears on the screen and regulate your force with precision."
Pressure Intensity: 1
The coeds took the dildos into their mouths without a second of hesitation. Roughly twenty pressure graphs sprang up on the screen at once.
"Your first target is a soft kiss. Target pressure intensity is one. Use only a light touch and apply pressure as gently as if you were kissing a baby's cheek."
The graphs thrashed wildly. At first, most of the girls failed to control their strength.
"Chaerin, you're putting in far too much force. Do not use your tongue."
"Mmph... nngh... yes."
Chaerin bit down on the dildo again, face tight with concentration. From beside her, those slightly parted lips looked rather cute as she focused.
Subin, on the other hand, was doing surprisingly well. Her graph trembled faintly yet held a stable reading right near the target.
As time passed, everyone's graphs steadied and closed in on the mark. Nari-with her long tongue and established skill at blowjobs-kept hers locked on the target longer than anyone.
The next goal was strong suction.
"Target pressure intensity is seven. Maximize use of your cheek muscles and suck hard, as if creating a vacuum inside your mouth. This is the foundation of vacuum fellatio."
Slurp and schlick sounds rose from every corner of the classroom as the coeds' cheeks hollowed sharply inward.
This time Yeji of the track team stood out. Her graph shot past the target in an instant and hit the peak. The lung capacity and muscle she had built through training were clearly paying off even here.
Still, the one who reached the target and held her graph the steadiest was Nari. Yeji's pressure ran high, but she seemed less practiced at the finer adjustments.
The final drill was to maintain that vacuum state for as long as possible.
As the minutes dragged on, the girls' faces began to contort. A few even teared up from the strain on their jaw joints.
I leaned back comfortably in my chair and watched the whole spectacle with interest. The sight of beautiful women desperately sucking dildos right in front of me was entertainment enough on its own.
The final three who lasted through the vacuum-hold training were the blonde gyaru Yuna, long-tongued Nari, and track-team Yeji.
When first period ended, the real technical training began. Iseol-noona put a vivid 3D graphic video up on the screen.
"The first technique is spiral fellatio. From the glans down to the root of the cock, then back up from root to glans-you rotate your tongue in a spiral as you move."
On the video, a red tongue coiled up a transparent dildo as sinuously as a snake. The visual alone was lewd enough to make anyone want a blowjob.
"The key to this technique is keeping a constant speed and pressure while you move your tongue. You have to use both the tip and the sides."
Without a dildo, she stuck her tongue out into empty air and demonstrated the motion. Watching that tongue loll and spin in neat circles was, if I was honest, a little funny.
The coeds, though, did not laugh at all. Each of them stuck out her tongue against the silicone teaching aid and threw herself into practice. The way they lapped at the props looked for all the world like a litter of kittens.
Oddly enough, individual feedback began appearing on the screen.
"Subin, relax your jaw a little and focus on extending your tongue."
"Mmph... nngh... y-yes."
"Yeji, your tongue is a bit stiff. You're not properly licking the base."
"Yes!"
After the note, Yeji worked her tongue even harder.
They practiced for a long stretch until girls all over the classroom started complaining that their tongues hurt. Iseol-noona answered them sharply.
"Ladies, this is nothing. Daily Kegel exercises for your pussy and anus are the bare minimum-and you will develop your tongue muscles as well."
Next came the second technique.
"The glans sweep-up uses the broad surface of the entire tongue to stroke gently upward from the root all the way to the tip of the glans."
That one, too, we had to watch on video and then study as she lapped at empty air again.
"Chaerin, think less of licking and more of wiping it clean-move softly."
"Haa... yes."
After the feedback, Chaerin shot me a quick glance and went back to licking her teaching aid with renewed effort.
"The next technique, lip rubbing, alternates the upper and lower lips against the shaft of the cock, delivering a soft friction distinct from anything the tongue can offer."
New technique explanations and drills continued for a full two hours. Beads of sweat had gathered on the coeds' foreheads. Their eyes held nothing but a burning desire to learn how to please a man even better.
And at last, the moment arrived to put that desire into practice.
"All right. Now it is time for hands-on practice with Model Sihyuk."
The instant the words left her mouth, the air in the classroom turned scorching hot.
Just like yesterday, I sat in the chair at the center of the platform and stripped off my pants. After a morning of theory and the girls' heated stares, my cock was already fully hard.
"As with yesterday, I will demonstrate first."
Iseol-noona stepped to the front of the platform. She dropped to the floor at my feet and, without a flicker of hesitation, assumed the dogeza position.
Even on a second viewing, that perfect posture of submission made the girls and me alike nod in approval.
She carefully lifted her head and pressed only her lips to the tip of my cock in a light kiss before pulling away. A soft, warm touch. My cock twitched in reflex.
Her kisses started at the glans, traveled down the shaft, and continued with meticulous care all the way to my heavy balls.
What a fucking arousing kiss routine.
Once she had paid homage to every part, she finally took my cock into her mouth.
Schlick.
A warm, wet sensation wrapped my entire length.
She began the demonstration exactly as taught, starting with spiral fellatio. Her tongue set out from my glans and traced a fluid spiral down toward the root, as if a snake were coiling around a tree and sliding off. Then it licked its way back up from root to glans. A peculiar pleasure lingered wherever her tongue had passed.
"This is spiral fellatio. It stimulates every surface of the cock and gradually preheats the male."
She delivered the commentary even while she sucked. Her voice was soft, yet it carried the professional edge of an academy instructor.
Next was the glans sweep-up. The tongue that carefully climbed from root to glans left me deeply satisfied.
One by one she properly demonstrated every shaft-service technique. And finally, she performed the complete form of fellatio-combining the glans service we had learned yesterday with the shaft service of today.
"Ohh..."
It was artistry, pure and simple. Inside her mouth, my cock might as well have been a musical instrument. She would envelope it softly one moment and suck hard the next; tickle with her tongue, then rub with her lips. Not a single second grew dull.
Holy shit. For real...
I leaned back in the chair, closed my eyes, and sank into that ecstasy. The stimulation was nearly a shock-I almost jerked my hips away without meaning to.
"If the male ejaculates, after drinking the semen you must stick out your tongue like this to show that you have drunk it properly. That concludes the demonstration. Now it is your turn."
She licked my precum from the corner of her mouth and smiled in satisfaction. The classroom stirred with a heat thick with excitement.
But I had no intention of letting the other girls practice just yet.
My gaze locked onto the back of the room-onto the one person standing with her arms folded, watching the entire scene unfold.
"Baek Hayeon."
At my call, every sound in the classroom died. Hayeon's shoulders flinched.
"Aren't you going to practice?"
Panic was plain on her face, but she forced a casual answer.
"I'm a guy, so I don't do that kind of thing."
"That so? Yesterday behind the warehouse, all alone..."
"W-wait-wait! Fine, I'll do it!"
I hadn't really meant it as blackmail, but the thought of having her secret masturbation exposed in front of everyone was apparently too much. Hayeon strode up onto the platform.
Fair enough. If she hadn't been embarrassed, she would have used a masturbation booth in the infirmary instead of some hidden corner.
She dropped to her knees in front of me. Her hands trembled, and her eyes stayed fixed on the floor.
"...."
Hayeon hesitated a long time. At last, with shaking fingers, she gripped my cock and brought it toward her mouth.
"Hold on."
It was Iseol-noona who stopped her
"Baek Hayeon. Why are you skipping the posture of submission and the kiss of worship?"
"...Ah."
At noona's reprimand, Hayeon's face flushed deep red with shame. She looked like she wanted nothing more than to refuse.
She bit her lip and glared up at me, but in the end she had no choice. She sank to her knees at my feet, then bent so low that her forehead nearly touched the floor-a perfect dogeza.
When she slowly lifted her head again, her expression was a complete mess of humiliation and fury.
With trembling lips she pressed a kiss to my fully erect cock, her face twisted in pure revulsion.
Glans, shaft, even my balls-every time her mouth touched me, her lips spasmed as if she were fighting a seizure.
This is actually insanely hot in its own way.
Watching a woman who clearly despised cocks-and a beauty like her, no less-force herself to kiss mine while making no attempt to hide how much she hated it... it was incredible. I felt a brand-new, twisted preference starting to form. Every other girl looked ready to die of pleasure for me; Hayeon alone was different. That difference was fresh, and it turned me on hard.
At the same time I felt a flicker of pity for the girl trapped inside a bizarre delusion that she was a man, suffering because of it.
Once the kisses were done, Hayeon reluctantly began the blowjob. And honestly? She was terrible.
Given how much she hated even touching a cock, it was only natural.
"Ugh...."
Every second of contact screamed her disgust. Her lips never properly sealed, and her tongue stayed stiff as a board. On top of that my cock was so big she couldn't even get halfway down the shaft, let alone the base.
"Baek Hayeon, you clearly haven't practiced expanding the space inside your mouth properly."
Noona's voice cut sharp as a blade.
"As all of you can see, to satisfy a male model with genitals the size of Sihyuk's, deep-throating all the way into the throat is essential."
"But even if you haven't learned deep-throating yet, sucking this passively will never give him any real pleasure."
Hayeon ignored the lecture and just moved her mouth clumsily, desperate to finish as fast as possible. Watching her, a mischievous urge rose in me.
Still seated, I stretched one leg out and casually lifted the tip of my shoe. From behind no one could see as I pressed the toe firmly against the crotch of Hayeon's jeans-right over her pussy.
"Hhk...?!"
Her whole body jerked at the sudden stimulation. She froze mid-suck and stared up at me in shock, but I kept a perfectly blank, innocent face.
"You heard the teacher, right? Start over."
Whether Iseol noona noticed me grinding her pussy or not, she backed me up completely.
"What's wrong? Your concentration slipped. Begin again."
At noona's icy command Hayeon had no choice but to take my cock back into her mouth, tears of pure resentment in her eyes. I immediately resumed rubbing the most sensitive spot between her legs with the tip of my shoe.
She glared daggers at me, but she still had to keep sucking. I pressed harder.
"Haa, nn...!"
The moment her pussy was stimulated, her blowjob sped up-just a little. She was thrashing like she was trying to hold off climax by force.
Too late. That pathetic, hypersensitive pussy of hers was already at the edge after only a few presses of my shoe.
-Pssshht!
"Hyaaaang...!"
A short scream tore out of her as girl-cum sprayed from her pussy like a fountain.
Her jeans and panties soaked through in an instant; thick strands of fluid dripped onto the classroom floor.
All strength left her body. She buried her face against my cock and gasped for air.
"Whoa... Hayeon's already developed a mouth-pussy?"
"She came from just a blowjob....
"My, climaxing from fellatio alone. What an unexpected talent."
"I thought she was just being sloppy, but it was because her mouth-pussy is that sensitive."
"Isn't mouth-pussy training an elective next semester? She's already doing advanced work?"
The coeds behind us murmured in pure admiration. I kept a straight face while laughing on the inside-no one had noticed my footwork.
Next up was Vice President Cha Ayeong. Her outfit was modest and covered a lot of skin, yet it clung so tightly that her flawless figure only stood out more.
Same as Iseol noona-clothes designed for big-breasted women seemed to be the fashion in this world.
Ayeong's blowjob was close to perfect. If I hadn't already received Iseol noona's first, I would have been genuinely impressed. Eighty out of a hundred. Noona was a ninety-five.
"Technically excellent overall, but the transitions between techniques still aren't smooth enough. Once you get more familiar with my cock, you'll be perfect."
Ayeong simply nodded without the slightest change of expression and returned to her seat.
Next was Subin. She had dressed a little more revealingly than usual-probably for me-showing off her navel in a tight tank top.
"I-I'll start...!"
Subin had clearly been practicing her jaw muscles; she took more of my cock than last time. Still nowhere near the base, of course. But unlike Hayeon, every clumsy lick was packed with genuine devotion. Watching her work her tongue so earnestly was adorable.
Fifty points. I graded coldly. Still far better than Hayeon's thirty.
"Still rough, but I can see the effort. Keep practicing and you'll improve fast."
My feedback was short. Honestly everything so far had been lacking; all I could really say was "practice hard."
Next came Chaerin. After the morning practice she looked full of confidence. Her skin-tight pants flaunted the firm curves of her ass and thighs.
"I took yesterday's feedback to heart. Today I'm going to do it perfectly."
With a determined expression she dropped to her knees in front of me. Confidence radiated from every movement.
-Chuuup.
A warm, wet sensation wrapped my entire cock. Definitely better than yesterday. Pressure control was steadier; there was almost no wasted force.
"How is it? Good, right?"
The way she mumbled around my cock was cute as hell. Instead of answering I simply stroked her hair.
Chaerin tried the spiral technique she had been taught-tongue starting at the glans, slowly tracing a helix down toward the base, then climbing back up again.
Clumsy but earnest. The sight of her trying so hard made my hips twitch without meaning to.
One by one she demonstrated every technique she had learned. Especially when she sucked the glans in with her lips, a delicious sense of wrongness shot through my whole body.
"Good job. Way better than yesterday."
When the practice ended and I praised her, Chaerin's face lit up like a lamp.
Even so, after all that hard work she only scored around sixty-five.
"Pressure's still a little weak, and the tongue movement is awkward."
The classic praise-then-cold-feedback combo made her bite her lip in frustration.
Next was Yeji. Short skirt, white blouse-anyone could tell she had dressed to look slutty on purpose.
"I'm in your hands, Class President!"
She greeted me coolly before starting, but the moment she dropped into dogeza her eyes turned dead serious.
"Chuuup, chuuup...!"
Yeji's blowjob was pure power. The suction inside her mouth was enormous.
Her tongue was a bit rough, but she more than made up for the lack of technique with overwhelming physicality.
Sometimes she lost control of the force and it almost hurt-yet that razor-edge danger only made it more exciting. Seventy points.
"Once you get better at controlling the strength, it'll be even better."
A flicker of disappointment crossed Yeji's face, but she quickly flashed a bright grin and returned to her seat.
Then came the gyaru, Yuna. Off-shoulder top, choker, black sheer blouse that let her black bra show through. Today's outfit was pure sex.
With a confident smile she knelt in front of me.
"Class President, time to eat~"
She winked cutely and began. Her blowjob was art. Especially the way she looked up at me with those heavily made-up eyes while smiling-it was maddeningly hot.
I had already noticed when she sucked just the head last time: her tongue was incredibly soft.
Technically she was on the same level as Vice President Cha Ayeong, but the texture of that tongue and the melting eye-smiles she kept giving me were on another plane.
"Chuk, churrp, hehe. Does my tongue feel good? Want me to just keep licking the head? Or the shaft?"
That little bit of playful leisure made Yuna's blowjob even more special.
Eighty-five points. The kind of blowjob I could take every single day.
When I told her she just needed to get a little more familiar with my cock, she nodded, promised me even better next time, and walked away.
Finally the girl with the long tongue stepped forward-Lee Nari.
Tall and slender, yet with unmistakably full breasts and hips; the mini dress she wore today suited her perfectly.
Nari smiled at me, but there was a faint arrogance in her eyes. And from what I knew of her, she had every right to it.
She was the best blowjob artist in our class, after all.
Technique, pressure, temperature control-everything was flawless. The way she constantly watched my face and adjusted her tongue, lips, and suction in real time was genuinely impressive.
She didn't stop there. With her free hand she began gently stroking the inside of my thigh.
"Oh... ho...."
The pleasure was electric. Every muscle around my cock clenched tight and turned hypersensitive.
-x-X-x-
Ninety-five points. The same score as Seol noona. With just a little more practice, she seemed ready to surpass her.
It wasn't that Seol noona couldn't do it. Nari simply had an insane talent for blowjobs.
"I don't really have any feedback to give."
I shook my head with a smile. Even if I tried to find something to improve, my experience with cocks so far wasn't enough to spot any flaws.
The texture of her tongue, the precision of her technique, even her ability to read my reactions-everything was perfect.
"If I had to say something, it's that you're already perfect, but I'm looking forward to seeing how you develop even further from here."
At my praise, Nari smiled faintly. That expression carried the quiet confidence of someone who believed this level of skill was only natural. I found myself wondering just how good her blowjobs would become if she improved even more.
She lightly licked away the traces of the blowjob still clinging to the corner of her mouth.
"But how did you get this good at giving head? Did you practice ahead of time?"
"My mom has a long tongue too, so she was always great at blowjobs. She said Dad doted on her for it, so she taught me how to use my tongue."
Nari answered as if it were nothing. If anything, she almost seemed proud of her mother.
A mother who passed down blowjob techniques to her daughter so she could be loved by her husband.
I marveled once again at how completely insane this world had become.
The lewd thought even crossed my mind that if I ever got the chance to meet Nari's mother later, I might want to experience her tongue skills for myself.
After that I received blowjob practice from the other female students as well, but none of them came close to Nari's level.
Once the blowjob practice session ended, fourth period began.
"Fourth period is deepthroat training."
Seol noona started explaining from the podium.
"The first goal is learning to control your breathing. You have to minimize the foreign-body sensation and the choking feeling in your throat while securing space to take the cock."
She brought up a cross-section diagram of a human throat on the screen. Her laser pointer moved across the sharp illustration.
"The most important thing is controlling the gag reflex. From now on we'll begin systematic desensitization training."
"Use the training tools to gradually stimulate your throat deeper and deeper. This is the process of steadily raising the threshold at which the reflex kicks in."
When Seol noona finished her explanation and everyone started practicing, gagging sounds erupted from all around the classroom.
"Push the teaching aid deep into your mouth. Absolutely do not bite down with your teeth."
"Uwek!"
"Kek, kek... cough!"
The female students each scrunched up their faces and began thrusting the training tools into their own throats.
Watching them desperately fight back the urge to vomit while tears beaded in their eyes left me with a strange feeling.
It was almost touching, seeing them put in this much effort just so they could deepthroat properly.
"However, some men actually want the gag reflex, so after you've completely eliminated it you'll also need to practice triggering it on purpose."
At Seol noona's words, a few of the female students tilted their heads.
So there were men who wanted to watch a woman gag and retch. Interesting.
"Next is breathing technique. Master diaphragmatic breathing so you can relax your body and loosen the muscles in your throat."
The women each began taking deep, slow breaths exactly as Seol noona instructed. A strange calm settled over the classroom.
"Because this practice carries high risk, I'll only demonstrate it myself. If someone bites down on a cock from the gag reflex, it would be a disaster. Everyone, practice thoroughly with the teaching aids at home."
"The goal is to be able to start sucking immediately even if a cock is shoved down your throat while you're asleep. Tomorrow, anyone who has perfected their deepthroat practice will get the chance to practice directly on Model Sihyuk."
When Seol noona finished speaking, I saw Nari give a small smile from the corner.
It was clearly the expression of someone who had already mastered deepthroating.
She must have practiced at home with something like a cucumber after learning from her mother.
"Alright, then I'll begin the demonstration."
Seol noona knelt in front of me once more. A different kind of resolve settled on her face. Even she seemed a little nervous about deepthroating.
After taking a few deep breaths, she took my cock into her mouth.
Then she slowly began to swallow it.
"Uup...."
The moment the head of my cock pushed past her throat, Seol noona's brow furrowed slightly.
I could feel with vivid clarity the sensation of my cock forcing its way into her throat. Completely different from a regular blowjob-her narrow, hot esophagus clamped tightly around the head of my cock.
But she didn't stop. Instead she steadied her breathing and took me even deeper.
Everyone in the classroom watched the scene with bated breath.
The sight of a woman enduring pain to swallow my cock. Those submissive eyes looking up at me with tears faintly welling up.
For a moment I felt a flicker of sadism and a sense of conquest.
Finally, when my cock was almost completely buried, Seol noona showed off a new technique-tightening the muscles of her throat.
"Oh...?!"
The warmth and the clenching of her throat around the head of my cock made a moan slip out of me before I could stop it.
The visual satisfaction was far greater than I had expected.
How should I put it-it was even hotter because it felt like her mouth had become a custom case for my cock.
"Churp, jyuup, chup, heu, heu...."
Seol noona's breath stirred the hair at the base of my cock.
In that position she began moving her head back and forth, deepthroating me, and the urge to cum slowly rose.
The soft flesh deep inside her throat writhed and caressed the head of my cock.
I wanted to finish just like that, but her expression looked too strained, so I held back.
No matter how much she had practiced with dildos, taking my huge living cock had to feel completely different.
And on top of that she was tense because if she accidentally bit down it would be a disaster.
I gently stroked Seol noona's head.
"That's enough. You did well."
At my quiet whisper, she smiled in relief and pulled off my cock.
"Everyone, practice so that you can perform deepthroat practice by tomorrow."
With that, morning classes ended and it became lunchtime.
I ate quickly and chatted with the girls in my class about the blowjob techniques we had learned today. While giving feedback to everyone, I also learned that the other classes weren't covering deepthroating at all.
Probably because ordinary men's cocks weren't big enough to need deepthroating.
I also learned about a new academy rule.
If a man called for her, a female student was allowed to skip her major classes.
Far from any penalty, if she missed class because a man had summoned her, she even received bonus points.
So during afternoon major classes, I called a girl to the sexual processing room.
I was waiting inside the sexual processing room when the door soon opened and someone entered.
It was Lee Nari.
Just being summoned by a man was enough that she couldn't hide the joy on her face.
"You called for me, Sihyuk-nim?"
I sat on the edge of the bed and patted the spot beside me.
Nari approached without hesitation and sat next to me.
The bed dipped slightly under her weight.
Her black mini dress stood out sharply against her white skin.
"Do you know why I called you?"
I asked playfully. Nari looked at me with eyes full of anticipation and answered politely.
"Is it because you want sexual processing with my blowjob?"
"Half right."
I grinned and gently lifted her chin.
"Have you practiced kissing?"
"Yes. I practiced with Mom every day."
I was momentarily flustered by the completely unexpected answer. Kissing practice with her mom?
Mother and daughter kissing and mixing tongues every single day for practice?
"Ahem, is that so? Well, uh. Anyway, then kiss me."
I parted my lips slightly. It was a provocation half-playful and half pure curiosity about her skill.
A bright smile bloomed across Nari's face.
"Yes, Sihyuk-nim. Just leave it to me."
Nari's face slowly drew closer. Maybe because I was looking forward to kissing a girl, her movement felt like slow motion.
Even though I had had sex several times, as a former virgin I still found kissing incredibly thrilling and nerve-wracking.
The first thing that captivated me was the visual. Under the bright lights, the shadows cast by her long eyelashes trembled faintly across her smooth cheeks.
I could see anticipation and a faint nervousness swirling in her pale black eyes.
Her cherry-red, plump lips were slightly parted, offering a glimpse of the moist interior of her mouth. She looked like a pomegranate so ripe its juice was about to burst.
And there was a scent. Not some cheap artificial perfume, of course.
The subtle shampoo fragrance from Nari's hair, the clean scent of her skin, and her own sweet body odor that wrapped around everything else all mingled together and tickled the tip of my nose.
Just before her lips met mine-at a distance of less than a centimeter-she paused for a moment.
Her hot breath brushed against my lips. Mixed faintly into that breath was the fresh scent of orange juice she must have drunk just earlier.
Chup.
At last those lips touched mine.
Soft, plush, and warm. Even though at first they only pressed lightly together, it felt as if her heartbeat was being transmitted through our lips.
I closed my eyes and fully savored that first sensation.
Then, as if she had been waiting for exactly this, Nari gently bit and released my lower lip, signaling the true start of the kiss.
"Mmm...."
A low moan slipped out of me unbidden. Encouraged by my reaction, she began softly sucking my upper and lower lips in turn, the way a newborn suckles.
Small wet sounds-chup, chup-echoed lewdly through the quiet room.
Whether she really had practiced kissing with her mother every day or not, Nari's lips moved with technical skill.
She didn't just suck; she also rubbed the soft inner flesh of her lips against mine as if massaging them,
and sometimes gently tugged to create tension.
Every one of those delicate movements was awakening every nerve in my lips.
After thoroughly teasing my lips, Nari finally began moving her tongue.
The tip of her long tongue carefully parted my firmly closed lips and slipped inside.
That was when it truly began.
Without relying solely on her natural gift of tongue length, the tongue technique Nari had honed through daily practice was incredible.
At first it was incredibly gentle. She wrapped my tongue with her own and soothed and coaxed it as if dancing.
Then suddenly she scraped the roof of my mouth with the tip of her tongue. My body jerked from the unexpected stimulation.
"Ung, chuk, churp, chuk, haup...."
The wet, messy sounds of Nari kissing filled the room.
Her tongue never stopped. It swept every corner of my gums and relentlessly probed even behind my molars.
It was as if she were determined to find every hidden pleasure switch inside my mouth.
At first I was completely swept away by her dazzling lead. But as I gradually grew used to it, I wanted to take the lead myself.
So I wrapped one hand around the back of Nari's neck and pulled her firmly toward me.
Then I shoved my tongue in far more roughly than before. It was clumsier than the kiss she had given me, but today I wanted to kiss her this violently.
"Eup...!"
Startled, she momentarily hesitated over how to move her tongue. Ignoring that, I explored her mouth.
Exactly as she had done to me-no, even more. I pressed her tongue down with mine and licked the soft flesh inside her mouth.
Our kiss grew steadily more intense. We mixed tongues and swallowed each other's saliva, forgetting even to breathe.
Our lips had already grown so hot from how long we had been locked together that if we kept kissing they would probably swell.
While we frantically mixed tongues, I took Nari's hand that was resting on the bed and placed it on my thigh.
I knew it was an obvious perverted move, but I didn't care.
Nari immediately understood my intention, smiled with her eyes, and gently stroked the bulging outline of my cock over my pants.
Paha-at last the long kiss ended. We faced each other, panting hard.
Her eyes were completely unfocused with pleasure, and her lips glistened with my saliva.
"Sihyuk-nim."
Nari called to me as if asking permission for a moment.
"Would it be alright if I licked your body a little?"
"As much as you want."
The moment I gave permission, Nari began licking my ear and neck as if she had been waiting for it.
The ticklish yet scorching sensation of her hot breath against my skin was incredible. For a long while she licked my body and teased me.
Finally I brought up the main subject.
"Continue what we were doing in class earlier."
I pointed at my cock and ordered.
"Start the blowjob."