The Stamp's Power
"Ugh…."
Between her spread inner thighs lay the hole.
The space meant to take a man's reproductive organ.
The precious female space where the white, turbid fluid pouring from the cock would enter the body and conceive life.
As I stared at that secret place as if entranced, Se-ah, sensing my gaze, smiled even wider.
She slowly withdrew the hand she had extended toward me and, as if inviting me to look more closely, pressed her fingers against her labia and pulled them apart to either side.
The naturally parted vulva wrinkled, exposing the clitoris and the hole that had been hidden inside in explicit detail.
"You want to fuck it, don't you? Inside my pussy…."
Se-ah was seducing me with a gaze full of lust.
Recognizing me, whom she had been brainwashed into seeing as her boyfriend, as someone allowed to enter her body, her true nature was surfacing.
"I want you to fuck me… but you don't want to fuck me?"
Se-ah, tilting her head slightly downward and looking up at me with upturned eyes, was coaxing the man with a plaintive voice.
Had her previous boyfriends been tempted in this same way?
Whatever the case, I could no longer hold back.
Releasing the thread of reason I had been clinging to, I pushed her down onto the bed in one motion, climbed on top of her, and slid between her legs.
"You seduced me first."
When I spoke while looking down at Se-ah pinned beneath me, she gave a gentle smile.
"That's right… I seduced you. It's only natural since you're my boyfriend. So I— Urgh!?"
Se-ah's face suddenly contorted and she clutched her head mid-sentence.
Startled by the abrupt reaction, I watched as focus slowly returned to her wavering pupils.
"—Ah."
Se-ah's original self, trapped beneath the brainwashing, rose to the surface of her eyes.
Confusion and shock spread across her face as the true Se-ah I had seen on the street began to reclaim her place.
"Wh… where is this? Y-you… who are you— Kyaaaaah—!!"
Se-ah's eyes, which had been moving to understand the situation, discovered her own naked body and let out a scream.
[Haah… Those bastards in the tech department. They made the intern stamp so sloppily. We were right in the middle of something good… They added a safety feature so she can't move if the brainwashing wears off. So hurry up and stamp that bitch's head again while she's barking like a puppy.]
Following the Guide's cold instruction, I quickly grabbed the stamp I had placed on the desk.
"Kyaa! What are you trying to— Urgh!? M-my body won't move…!? You… don't! I said don't!! I don't know what you're trying to do, but put that down right now—."
When I tried to stamp Se-ah's head again, her voice—filled with anger and defiance—echoed loudly through the room.
Thud.
Before a bigger problem could occur, I swiftly stamped the seal onto Se-ah's head.
Then—.
"Ugh…?"
The viciously distorted face gradually relaxed and began to go blank.
The returned focus scattered back into the fog, leaving only pitch-black pupils.
The pupils, devoid of will, wandered vacantly in the air for a few seconds before turning toward me.
"…Why are you making that face? Did something happen?"
Se-ah, looking at me with a puzzled expression, soon smiled softly as if nothing had happened.
While feeling a chill at the sight of her becoming a completely different person, I also felt a wave of exhaustion.
"Huu—."
Thank goodness….
Letting out a deep sigh of relief, I asked the Guide.
'Can this wear off again?'
[It won't.]
The Guide spoke in a displeased voice.
It seemed the emotion was directed not at me, but at the company employee who had made the stamp.
While I was briefly conversing with the Guide in my head, Se-ah, who had been blankly watching me, shifted her gaze to my crotch.
"Your cock's gotten big…."
Swish.
The hand stroking my cock was bold.
Her narrowed eyes emitted an even stronger aura of lust than before.
Something.
Had changed.
"I can't hold back… Let's do it quickly. Or are you tired? Then—."
Suddenly, Se-ah raised her body, pushed me down onto the bed, and climbed on top of me.
Then she leaned forward and pressed both hands down on my shoulders.
"Stay still. I'll take care of everything…♥"
Se-ah, looking down at me with eyes wet with desire, clearly showed a different atmosphere.
She was still under my control, but it seemed she had gained a dangerous sense of agency in the process.
Desire could be felt in the way she looked at me.
She began lifting her hips, searching for the place where the hole should come down.
Understanding what this action was for, I hurriedly opened my mouth.
"Wait—."
Squelch—.
"Haaht—♥"
Before I could stop her, Se-ah had already taken my cock into her hole.
"Kuh…!"
Skipping the plan to put on a condom, a pleasant sensation rose through Se-ah's vagina as she took me raw.
The heated vaginal walls gripped the cock that had pushed its way in, and I reflexively grabbed her ass tightly to endure the pleasure.
The soft skin and pliant texture, different from a man's.
The massive breasts hanging down as she leaned forward brushed against my chest, creating a ticklish sensation.
All of it vividly conveyed that I had become one with her, pressed tightly together.
"Seung-woo, you can just stay still… Leave everything to me and shoot plenty of your sperm inside♥"
I just need to tell her to stop.
If I do that, Se-ah will stop all actions like a computer with its power cut, and lose even the slightest will.
But.
"I like you, Seung-woo♥"
Se-ah, believing in the false relationship I had created through brainwashing, actively clung to me.
I couldn't push her away.
The face that had glared at me with fierce eyes and shouted was now overlaid with the face looking at me full of affection.
The sense of dissonance from her personality being reversed by brainwashing brought an eerie pleasure.
The situation of changing her very existence with just one stamp gave me an indescribable thrill.
[Looks like stamping twice caused some unnecessary side effects. Don't worry, once this is over I'll go to the tech department myself and adjust it. Since it's come to this, enjoy it. This is experience too.]
The Guide spoke with an interested tone at the situation unfolding differently from expectations.
"I'll take care of everything…♥"
Thwack!
"……!!"
Her raised hips slammed down.
The vaginal walls gripped the cock and stretched upward before swallowing it all the way to the root, sending waves of pleasure.
"Jyeuhaa♥ Huee♥ Seung-woo♥ My boyfrienduu♥ Heek! Heek!!"
Squelch! Squelch! Squelch!….
Se-ah's pussy hole, swallowing my cock while her hips moved up and down repeatedly.
Separate from her lascivious posture, her face was panting like a dog with her tongue out, staring into the air.
She poured out her love for me while drowning in the pleasure of sex with me.
Squelch—.
"Kuh…."
The lewd, thoroughly wet love juices created friction with the cock, allowing it to slide smoothly deep into her vagina.
As her ass flesh repeatedly struck my lower abdomen, I could feel the cock digging deeper and deeper inside her.
Meanwhile, the tip began to press against something.
I realized it was the uterus, descended in excitement.
The cock was knocking on her womb, the baby room.
"Seung-woo is tired, soo♥ So you just need to cum your spermm♥"
Swish, swish—.
The pattern changed.
Stopping the pounding, Se-ah began vulgarly wiggling her hips left and right.
The vaginal walls devoured the cock even deeper, and the tightness around the shaft increased.
Naturally, the pleasure deepened and heightened, and the prostate began to throb.
It's coming.
Intuiting the prelude to ejaculation, my remaining consciousness warned of danger.
Creampie.
My sperm would enter her vagina and make a baby.
No matter how much pleasure dominated my brain, my instincts told me this was something I must not do.
"S-stop…."
Holding onto my fading consciousness, I barely managed to speak, and Se-ah immediately stopped moving according to the command.
But even though her movements had stopped, the excitement still lingered on her face as she looked down at me.
"Really?"
She asked again.
Was this command appropriate?
Was this truly my true intention?
The active self that remained as a side effect even after brainwashing asked me with narrowed eyes, inquiring about my inner thoughts.
Silently.
Wordlessly.
Like a dog waiting for its master's words.
Like an android waiting for its creator's command.
Gulp—.
I swallowed while meeting those eyes.
As countless thoughts swirled, the Guide spoke.
[Heh… You're worrying about something so trivial? Your sperm won't impregnate anyone unless you want it to. Even if it does impregnate her, do you really need to care about a doll like that?]
'What do you mean?'
[I, the parasite residing in your body, can control your bodily functions. That includes changing the contents of your sperm. So focus on what you're doing now.]
Squeeze—.
The vaginal walls tightened as if telling me not to hesitate anymore.
The indifferent gaze looking at me with a smile was waiting only for orders.
The trembling cock told me it was barely holding on at the edge of climax.
There was no time.
I decided to trust the Guide's words.
"I want to… cum."
At the command, Se-ah, who had been still, broke into a wide smile.
Swish—.
Leaning forward, she embraced me and pressed her lips to my ear.
"Then… relax♥"
A low, sigh-like voice and hot breath tickled my ear.
The sweet voice dug into my ear, numbing my reason.
The warmth embracing me grew even hotter, and her paused movements resumed.
Thwack!!
Her ass flesh slammed down even more powerfully.
Thwack! Squelch! Squelch! Squelch!….
As the movement of her hips became more rapid, the intervals between the wet sounds also narrowed.
'It's coming—.'
The lewd hip movements inducing climax sent waves of pleasure surging through my lower body.
It was an irresistible force that every man knew could not be stopped by will alone.
"Kuhh…."
Spurt—.
Whoosh!!
The gushing flood poured into the vagina that was swallowing my cock.
Filled with the sensation of ejaculation, my hips lifted on their own and my breath caught in my throat.
"Cum more…♥ Cum more… cum a lot more inside me♥"
Se-ah embraced me even tighter as if refusing to let go and pressed her hips down firmly.
At that blatant intention to squeeze out every last drop of semen, I had no choice but to be milked helplessly.
Whispering in my ear, she welcomed my ejaculation and craved even more love.
Gluck… Spurt—.
"Huu…."
Releasing the breath I had been holding, I felt exhaustion wash over me.
Even though it was only my second ejaculation, I could tell that far more than expected had filled Se-ah's insides.
Thump, thump….
Along with the refreshing feeling after ejaculation, the sound of my heartbeat fading in my ears resonated together with Se-ah's heartbeat pressed against my chest.
"Did it feel good? My boyfriend♥"
As the excitement in her body gradually subsided, Se-ah raised her upper body from embracing me and cupped my cheeks with her palms.
"I love you…♥"
Contrary to the voice filled with affection, her eyes remained the same achromatic color.
Having fallen into a slave who would obey my commands for the rest of her life, she had become my perfect brainwashed doll.