Episode 15: "I Was So Absorbed in Making My Game That I Didn't Notice the Beautiful Girl Approaching from Behind"
The creaking sound of the bed echoed through the room.
How much time had passed since I started having sex with Seo-san? I was still on top of her in the missionary position, continuing my piston-like movements without having ejaculated even once.
"Ah♡ ...Nnn♡ Y-Yuki-kun, you still haven't come? You can come whenever you want, you know?"
Illustration (By Mitemin)
Seo-san asked with a slightly flustered expression.
Her vagina had been repeatedly tightening around my member with a *kyuuuu* sound. It was a sign she was about to climax soon.
It had already been five months since Seo-san and I were locked in this room. I already knew that, contrary to her appearance, she had a very proud and competitive personality.
She probably couldn't stand the thought of being made to come first by a wimpy, gloomy loser like me, while she was the class idol.
But her vagina was honest. It twitched and spasmed every time the vaginal walls were rubbed, squeezing my member. From those movements, I could tell her limit was approaching.
"W-wait, Yuki-kun! S-stop! Stop! Hold on for a second!"
"..."
Ignoring her strained voice asking me to stop, I continued thrusting my hips. A large amount of her love juices clung to my penis, overflowing from where we were joined.
An intense pleasure was being sent from my lower body to my brain, but I still didn't stop my hip movements.
"Ah, ah, aah♡ W-why aren't you coming?! You should have come by now if it were normal!!"
Seo-san cried out in a voice on the verge of tears, desperately resisting. But it was in vain; my member still showed no signs of ejaculation.
The reason was simple and clear. It was because I had just masturbated in the bath until my dick hurt, completely emptying the contents of my testicles.
Ever since we started having sex, Seo-san had stopped masturbating. Perhaps thinking I was the same, she had also stopped watching me intently or barging in when I was in the bath.
So, I had become able to masturbate secretly like before.
From Seo-san's perspective, she probably thought there was no way a stupid guy would masturbate when he could creampie a beautiful girl like her anytime.
In fact, normally, that would be true.
(Yes, except for me!!)
Honestly, I didn't want to waste a single drop either, but I had been constantly mocked as a premature ejaculator until now. So today, in order to make her come first, I had emptied all the sperm from my testicles in advance.
But Seo-san had no way of knowing that. She must have thought she was about to be made to come first under equal conditions. It was no wonder the competitive her was getting flustered.
"...!! H-hey! Stop! Hey! Ah♡ Nnn♡ I'll get angry! I really will! Ah♡ Ahn♡"
Seo-san's lower body was shaking violently. Her cheeks were also starting to flush red; it was now obvious she was on the verge of climax.
(I'm scared of the aftermath, but now that we've come this far, I'll definitely make her come first...!)
To give it a final push, I repeated the piston movements even more intensely than before. Grabbing Seo-san's thighs with both hands, I moved my hips back and forth like crazy.
――Squelch! Squish! Schlick!
Along with the lewd, wet sounds, foamy love juices splattered, staining the sheets. Looking at Seo-san's face, her eyes were wide open and she was gritting her teeth.
But that didn't last long either.
The next moment, Seo-san arched her back dramatically and finally reached that moment.
"Ah♡ H-hey! Nooooo!! Aaaaaah～～～～～～♡♡♡♡♡"
――Splooooosh!!!
A spectacular squirt erupted from Seo-san's pussy, soaking my member. At the same time, her vagina contracted violently, trying to squeeze out my semen.
I could feel sperm being produced at an incredible rate from my emptied testicles, but I clenched my back teeth and endured, not letting it out.
Seo-san's body convulsed *gakun gakun* as she was swallowed by waves of pleasure. Her face was completely melted, and saliva was dripping from the corner of her mouth.
"Haah...! Haah...! Seo-san, did you come?! Did you come first on my dick!?"
Until now, I had always come first and been left in a daze, so I never had a chance to carefully observe Seo-san in such a lewd state. Therefore, Seo-san's current appearance was incredibly arousing.
Overwhelmed by excitement, I continued violating her climaxing vagina without thinking about the consequences.
"Ah, aheeeeh! Y-Yuki-kun, wha-! H-hey, sto-he! Stop! Nnhiiiiii!!"
Seo-san writhed, her words slurred and her tongue hanging out. Seeing her like that made my member grow even larger.
I spread her vaginal walls, knocking against her cervix over and over. Each time, a high-pitched scream escaped her mouth. Her vaginal walls writhed and squirmed, stimulating my member.
I lifted and spread her legs, then put my weight on her as if crushing her from above, thrusting my penis in.
"Stahhhhp♡♡ I'm cumming! I'm cumming again even though I just came♡♡ Ah♡ Ah♡ Ah♡"
"Come! Come as many times as you want on my dick! Seo-san!"
Saying that, I sped up my hip movements.
Seo-san's eyes widened, and she shook her head wildly from side to side. Her vagina was in constant spasm. Even I was starting to find the urge to ejaculate unbearable.
"Ah! Ah! Nn! Ooooh～～♡♡ I'm cumming! I'm cummiinngg!!!"
As Seo-san let out an especially loud moan and reached her peak, I slammed my hips down with all my might and released my desire deep inside her.
――Splurt! Throb throb!!
"Ugh! Uuugh! Cumming inside Seo-san's pussy while she's cumming feels too good...!!"
The inside of Seo-san's vagina while she was climaxing squeezed my member as if it were a different living creature. Even while ejaculating, I instinctively moved my hips as if rubbing it inside that fleshy pot.
It was meaningless in this room where I couldn't impregnate her, but I still desperately continued spilling my seed, as if trying to mix my genes with Seo-san's.
――Glug... Gulp... Gurgle...
Finally, as Seo-san's climax subsided, the movements inside her vagina also calmed down. I pulled my still-ejaculating penis out of her pussy and rubbed it vigorously with my right hand.
――Splurt!! Gurgle!!
Illustration (By Mitemin)
I splattered the semen that shot out with force all over Seo-san's thighs and chest, as if to mark her as mine.
"Haah...! Haah...! Seo-san, are you okay?"
Seo-san lay limp on the bed, turning unfocused eyes towards me.
Her face was a mess with sweat, tears, and snot, her hair was disheveled, and the area around her mouth was covered in saliva. It was a sight unimaginable from her usual self.
"..."
Seo-san glared at me, then slowly sat up, grabbed a tissue, turned her back to me, and began wiping off the semen I had splattered on her.
A silent time passed.
(O-oh no... Maybe I got too carried away...)
It was the proud Seo-san. Having shown such an unsightly state, I didn't know what kind of retaliation was coming. I cautiously called out to her.
"U-um... Seo-san? You're angry... right...?"
Then she turned around and faced me. But her expression showed no sign of anger. If anything, she even seemed somewhat happy.
"Nope, I'm fine. But still, Yuki-kun, you got over your premature ejaculation, huh. That's great."
(...Huh?)
Taken aback by the unexpected words, I was left speechless. It seemed she really wasn't angry.
"What's wrong? Let's go eat soon."
Saying that, she put on her clothes and walked towards the touch panel with a smile on her face.
I followed her, staring at her suspiciously.
"Hmm, the human characters are mostly done, so maybe I'll have some special monsters appear too."
While working on my daily game development, I came up with a new idea and started typing on the keyboard.
(That's it! How about three unique monsters for land, sea, and air?)
If I set them as beings stronger than the final boss, impossible to defeat under normal play, they might be enjoyed as endgame content.
Even if you don't defeat them, you can still clear the game, but if you add elements like getting super rare items if you do defeat them, it would help boost motivation.
I decided to start thinking about the monster settings right away.
"Hmm, maybe a giant flying white dolphin or something? Mystical and gentle in appearance. But actually... something like that. Okay, let's go with this!"
I thought it was a pretty good idea myself. I had to start production right away.
And I started typing on the keyboard again. Humming a tune, I faced the computer and continued my work.
——But, absorbed in game development, I didn't notice the beautiful girl approaching from behind.
"Here, if I do this... Hmm, not bad, right? Mmph——"
Suddenly, something soft is pressed against my mouth. Startled, I turn around to find Seo-san standing there.
Her softness is pressed against my lips.
——Chupa♡ Lero♡ Reru♡
She entangles her tongue with mine, giving me a deep, passionate kiss. Then, something begins to flow down my throat.
——Gululp
Having swallowed whatever flowed from her mouth, I frantically push her body away.
"Pwah! Wh-what are you doing all of a sudden, Seo-san! You scared me!"
Seo-san smiles mischievously. At that moment, my vision sways unsteadily.
(Wh-what's this! My body feels hot!)
Smoke rises from my body with a sizzling sound, and simultaneously, my strength drains away.
Seeing me like that, Seo-san grins.
(N-no good... My consciousness... is fading... away...)
Just like that, I collapse and lose consciousness.
◇◇◇
When I open my eyes, I'm lying on the floor. My whole body aches. What on earth happened?
"Oh? Looks like you're awake, Yuuki-kun♪"
Seo-san speaks to me with a grin.
I can't grasp the situation. I'm sure Seo-san forcibly kissed me and made me swallow something, but...
I try to question her, but upon seeing her, I involuntarily gasp.
"Huh? Seo-san, aren't you... bigger?"
Yes, her figure looks one size larger than usual. So much so that I feel the illusion she's become a giant.
"I'm the same as always, you know? Isn't it you who's strange, Yuuki-kun? Here, look in the mirror."
She points to a full-length mirror nearby.
Then, what's reflected there is——
"Wh-what the hell is this——!"
Illustration (By Mitemin)
My body has become like that of an elementary school student. My height has decreased, and my limbs are thin and short. On top of that, the clothes I was wearing have become baggy, barely staying on my arms.
My mind is thrown into chaos by this unbelievable event.
"Se-Se-Seo-san, what on earth did you make me drink?!"
Looking down at me, Seo-san grins and says.
"AHOTOXIN4869."
"A-Ahotoxin Four-Eight-Six-Nine?!"
Is that naming really okay?
"It's a drug that temporarily turns the target into a child, apparently. Well, it seems you'll return to normal when the time comes, so don't worry. More importantly..."
She walks over to me with small steps, grabs my hand, and guides it toward her own chest.
——Munyuuuuuuuu~♡
My hand is enveloped in a soft sensation.
Even though I'm in a child's form, my penis twitches in response. Noticing this keenly, she strokes my crotch over my pants.
Then, she whispers in my ear. Her voice contains a sweet, melting resonance.
"You really did it the other day, didn't you? Today, I'm going to pamper you thoroughly, so be prepared, okay?"
Seo-san's expression looks very pleased. I shudder.
(This is bad... She's really angry...)
Instinctively sensing danger if things continue like this, I desperately try to explain myself.
But Seo-san wouldn't allow it. She grabs me by the scruff of my neck, carries me to the bed, and tosses me down.
Then, she straddles me and pins down both my hands. No matter how much I resist, she doesn't budge an inch.
It seems my escape route has been completely blocked.
"Calm down, Seo-san! If we talk, you'll understand! First of all, that was an act of God, I didn't do it on purpose... Mmph!?"
My mouth is sealed with a kiss mid-sentence. Her tongue enters, ravaging the inside of my mouth.
As she licks behind my gums and the roof of my mouth, a shivering pleasure runs down my spine.
Seo-san torments me persistently, as if enjoying my reactions. She entangles her tongue, sucks on it, and gives gentle bites.
I can only submit. Seo-san pulls her lips away for a moment, then says with a bewitching smile.
"Well then—let's get undressed. Big sis will take them off for you."
She removes my shirt, then moves her hands to my pants. Pulling them down along with my underwear in one go, my lower half is exposed.
Poyokon♡ My little dick pops out. It's covered by foreskin and is a very cute size.
Seo-san stares intently at it, chuckles, and pokes it with her fingertip—tsun♡.
Bikun♡ Just that stimulus alone makes my body tremble.
(Wh-what is this! Is it because my body has become a child's? I feel like I've become incredibly sensitive!)
While I'm thinking that, Seo-san gently grabs my little thing. Then she slowly begins moving it up and down.
——Shu♡ Shu♡ Shu♡
Each time it's handled, enveloped in her soft hand, a sweet numbness runs through my entire body.
Soon, my thing begins to harden, and the foreskin starts to peel back. While mostly still covered by skin, only the pink tip peeks out.
"Looks like you're almost ready♡"
Saying that, Seo-san removes all the clothes she's wearing and becomes completely naked. Her white, beautiful limbs are revealed.
Her large breasts look even bigger than usual. No, since I've shrunk by more than one size, they probably are actually larger.
Seo-san straddles me and aligns my small penis with her secret place.
(Guh! My body may have become a child's, but I'm no longer a virgin premature ejaculator! I won't let you have your way, Seo-san!)
She must definitely be planning to turn me into a child and do as she pleases. But it won't be that easy.
The other day, I grew enough to make Seo-san climax first. Even if it enters a real vagina now, the current me shouldn't climax easily.
(I'll endure Seo-san's temptations and counterattack instead!!)
I resolved myself, but...
——Chupu♡
The tip of my thing is swallowed into Seo-san's slit. Just that brings an extraordinary amount of pleasure.
"Huh? What is this? W-wait a second, Seo-san! Stop! St——op!!"
"Fufufu, even if your mind is the same, your body is still the inexperienced little dick of a child who hasn't even had his first wet dream yet, right~? The stimulation was already too strong from just a light touch with my hand, so I wonder what will happen if I suddenly insert it into a real pussy? I'm looking forward to it♡"
Illustration (By Mitemin)
Ignoring my words, Seo-san begins to lower her hips.
"Ah, wai! Wait! Seriously, stop——"
————Semenarche. It's something every boy experiences, a precious event that only comes once in a lifetime.
Excluding wet dreams, most boys experience it with their own hands.
There might be rare cases where it happens from the shock of rubbing against clothes or other reasons, but most people probably experience it with their own hands.
However, it seems there are exceptions in this world... There are apparently winning boys who experience their first ejaculation thanks to a woman.
Even then, it's usually by hand or mouth; it's safe to say there are almost no men who experience their first ejaculation inside a vagina, let alone the real vagina of a super beautiful girl.
But, while that makes one a super winner, it could also be said that they are doomed to walk a life infinitely close to losing.
Why? Because they experience the best ejaculation of their life, one that can never be surpassed, on their very first time.
A boy who experiences that will likely carry an unquenchable thirst for the rest of his life, no matter how much he masturbates, or even when he embraces the woman he loves, he will never feel satisfied.
——Zububu♡ Nyurun♡
My small thing is completely inside Seo-san. The sensation of being enveloped by warm, soft flesh walls.
A pleasure that feels like it's piercing through the crown of my head washes over me.
(Wh-what is this sensation? This is strange! I should have already inserted into Seo-san's vagina many times... Was it always this incredible!? It's just like that time when I first handled my dick...)
Was it when I was an elementary school student, about to become a middle schooler? Using the knowledge I nervously gleaned from listening to my more advanced classmates' conversations, I timidly touched and handled my own thing.
That first life-changing pleasure I felt then. A pleasure several... no, dozens of times greater than that time, runs through my entire body, centered on my crotch.
Sparks scatter across my vision. Overwhelmed by such intense pleasure, I can't even make a sound, and for a moment, I lose consciousness.
"Mmm~? Are you okay~? You look like you're struggling? But you overcame premature ejaculation, right? It should be fine if I move now♡"
"W-wait! If you move now——"
——I have a feeling something irreversible is about to happen!
——Nuchu♡ Gucho♡ Nicha♡
Ignoring my words, Seo-san begins to move.
That time as an elementary school student when I first handled my penis and became obsessed with its pleasure. I'm now reliving that experience, not with my own hand, but with a beautiful girl's real pussy.
My foreskin is peeled back inside Seo-san's pussy, and the sensitive parts are directly stimulated. Licked by her folds, sucked, and handled.
The stimulation was more than my brain could process. My body convulsed violently, and sweat poured from every pore.
"Ah, aheeeeeeeeeeeeeeeeee!!!"
――Splurt! Pyoosh! Pyururururururuuuuuuuuuuuu!
Illustration (By Mitemin)
The boy's penis released his first-ever semen. And it was inside a beautiful girl's vagina. It was as hot as magma, thick and viscous, a cloudy white color.
"Kya! Wooooow! Amazing! It's coming out so muuuuch♡ Wowww! So this is the first squeeze♡"
Seo-san was saying something, but it barely registered in my ears. All I could comprehend was that something hot and slippery was tightly squeezing my dick.
My eyes felt like they were about to roll back into my head. My mind went completely blank, unable to think of anything.
But Seo-san showed no concern for my state and simply continued to move her hips.
"Huh! Aheh!? W-why!?"
I tried to stop Seo-san's movements by grabbing her slender waist. However, her hips didn't budge an inch.
"Why, you ask? You did the same thing to me the other day, didn't you? P-a-y-b-a-c-k♡"
This person! Not only is she proud and hates to lose, but she's also the type who holds a serious grudge!
By the time I learned this new side of her, it was already too late. My dick was completely captured by her pussy, with no escape.
――Jup♡ Nuchu♡ Gucho♡
Seo-san's vaginal interior, freshly creampied, was slimy, and my semen was bubbling and overflowing. In sync with Seo-san's hip movements, my small thing was violently thrusting in and out.
"Aheeeeeh! Stohp! I'm gonna go crazy! This is gonna give me traumaaaaa!"
"No way♡ Can't have you getting carried away again~♡ I have to discipline you prooooperly today♡"
Illustration (By Mitemin)
"U, waaaaaaaaaaaaaaaaaaaaaaaah!!!"
For a while after that, I was subjected to Seo-san's relentless pounding... and then...
――Dopyu! Byurururuuuuu!! Byu byu byuuuuuu!!!
"St, stohhhhhhhhp!!"
"You're still cumming? Amazing! But it's still not over, okay~?"
And so, in my child form, I was ultimately not allowed to pull out even once until morning, and was violated until I lost consciousness.
The next day, my body had returned to normal... but due to the trauma from this experience, for a while afterward, I would ejaculate just from inserting into Seo-san's vagina...