Administering the Semen Vaccination to Daughter Song Yeeun
The dazzling light faded away.
Beside the medical bed, a girl wearing a khaki pilot jumper crouched on the floor.
Her mint-colored hair was tied into twin tails. This was Song Yeeun.
But her aura felt distinctly different from all the other characters who had been born before her.
The moment Yeeun saw me, she dropped her head low, fidgeting with the sleeve of her jumper and avoiding my eyes entirely.
She seemed incredibly shy and strangely low on energy.
“Um… Mom? And… is that person… Dad…?”
Yeeun’s voice was barely louder than a mosquito’s buzz.
Minji, her body still slick with sweat from the intense anal sex we had just finished, steadied herself and smiled warmly at her daughter.
“That’s right, Yeeun. Nice to meet you. This is your dad.”
“Why… are you both naked?”
“Hehe. Why do you think? We had anal sex so we could give birth to you in the healthiest way possible. See how Daddy’s semen is still dripping from Mommy’s ass? That’s why you were born with SR (Super Rare) rank.”
Even after Minji’s blunt explanation, Yeeun didn’t answer. She simply lowered her head even further. All I could do was guess at the emotions she must be feeling from the bright red tips of her ears.
“Anyway, Taehun, you need to give our Yeeun her semen injection now.”
“Semen injection? With a syringe?”
“No, the syringe is your cock, Taehun. Yeeun, are you ready to suck Daddy’s cock?”
At Minji’s command, Yeeun’s shoulders visibly shrank inward.
She gave me a quick glance, then immediately looked away again, mumbling in an almost inaudible voice.
“Do I… really have to?”
“Of course you do. If you miss it, you won’t get the permanent buff that can only be received right after birth.”
Under Minji’s stern pressure, Yeeun finally approached me with a look of resignation.
She carefully crouched down in front of my cock.
The instant she saw my massive length, she drew in a sharp breath. Then, with hesitant fingers, she wrapped her small hand around my shaft.
Still keeping her lips pressed tightly together and clearly conscious of her mother’s gaze, she gently rubbed the tip of my glans with her fingertips.
Inside her soft palm, my cock swelled even harder, throbbing with need.
“Yeeun, start sucking within thirty seconds.”
At her mother’s urging, Yeeun pressed her nose against my cock with an expressionless face.
The thick, masculine scent flooded her nostrils, and her small mouth finally parted slightly.
“Wait, Yeeun. You can’t give a blowjob with your clothes on. Take off the cyber suit first.”
Yeeun’s shoulders twitched at Minji’s words.
“Ah… understood…”
She answered in a tiny, crawling voice and pressed the Take Off Button on the suit beneath her jumper.
With a soft shush, the cyber suit dissolved into particles and vanished, leaving only the khaki pilot jumper. Her delicate, unprotected skin was now completely exposed.
Embarrassed by the sudden nudity, Yeeun pressed her knees even tighter together.
Then, with trembling hands, she grasped my cock again.
“Is… is this… how I’m supposed to do it…?”
Mumbling in her low-energy voice, Yeeun began stroking me back and forth.
She refused to look at my face, staring only at my cock, completely focused on the unfamiliar texture against her fingertips.
Every time her delicate breath brushed across the burning tip of my glans, my lower body jerked wildly.
Even though I had just pumped an enormous load into Minji’s ass, the combination of Yeeun’s fresh, youthful scent and her shy little hands drove my urge to cum through the roof.
“Yeeun, you’re supposed to put Daddy’s cock in your mouth. Using only your hands like that is bad manners.”
When Minji’s scolding came from behind her, the back of Yeeun’s neck flushed bright red.
She squeezed her eyes shut and opened her mouth carefully, like a child trying to swallow a too-large pill.
The moment the huge glans pressed between her small lips, I could no longer hold back.
“Ugh! Yeeun, I’m sorry!”
A massive torrent of semen erupted across her face and chest.
Startled by the sudden hot shower, Yeeun’s eyes flew wide open.
Her mint-colored pupils trembled with pure bewilderment.
She carefully wiped the semen dripping down her face with her fingers, then stared at me in a daze.
With her entire face and chest covered in thick white cum, she looked down at the sticky fluid on her fingertips with a blank expression.
“……”
Yeeun kept her mouth firmly closed and tried to wipe her face with the sleeve of her jumper, but froze at Minji’s sharp command.
“Don’t wipe it off, Song Yeeun. How dare you try to throw away Daddy’s precious semen? Use your fingers to scoop up every drop from your face and chest and swallow it.”
Following her mother’s orders, Yeeun used her fingers to gather the semen around her mouth and pushed it between her lips.
The moment the salty, sticky fluid touched her tongue, her shoulders shrank inward again.
“This is… Daddy’s semen… munch… munch…”
Yeeun rolled the salty cum around her tongue.
Her face remained mostly expressionless, but the tiny furrow between her brows made her discomfort at the unfamiliar taste obvious.
Still, her throat bobbed as she swallowed it all down.
“Good girl, Yeeun. You have to eat every last drop. It’s the cum Daddy gave you, so be grateful.”
Minji nodded in satisfaction, then turned her gaze toward me.
“Taehun, you’re not going to stop after just the mouth injection, are you? That was only the basic immunity. You need to inject it directly into her pussy too so the core data gets perfectly imprinted. Yeeun, get on the bed and spread your pussy wide. Open your legs completely so Daddy can give you the shot easily.”
“Okay… Mom…”
Yeeun answered in that same tiny voice and climbed onto the medical bed.
Her naked body, covered only by the open khaki jumper, gleamed under the lights.
Her face burned with embarrassment, yet she obediently spread her legs into a wide M-shape as instructed.
Because of her extreme shyness, she couldn’t meet my eyes and turned her head to the side. But the sight of her shyly exposing her delicate little pussy created an intensely lewd contrast.
I pressed my painfully hard cock against her narrow, virgin entrance and thrust forward without warning, burying myself to the hilt in one powerful stroke.
“Ah, ahh…! Haa… ugh…!”
Instead of screaming, Yeeun bit down hard on her lip and endured the unfamiliar pain.
Her fresh vaginal walls were hotter and tighter than any of the others. The intense squeezing pressure sent waves of pleasure so strong it felt like my neurons were melting.
I had expected a low-energy girl like her to show no reaction, but her body was more honest than any character I had ever met.
With each thrust, her breathing grew heavier.
She gripped the bedsheet tightly, panting, and began subtly rocking her hips to match my rhythm.
The feeling of this shy girl’s pussy desperately clinging to her daddy’s cock brought an indescribable sense of catharsis.
Minji moved right beside the bed, gently kneading Yeeun’s soft little breasts while continuing her coaching.
Every time her mother’s hands touched her, Yeeun’s pussy convulsed violently around my shaft, milking me harder.
“Yeeun, keeping your mouth shut during sex is unacceptable. You need to say dirty things to Daddy so he can enjoy it enough to cum.”
Under her mother’s pressure, Yeeun shyly lifted her gaze to me.
Her expression screamed that she wanted to die from embarrassment, yet her inner walls were greedily pulling my glans toward her cervix, twitching with raw hunger.
“Daddy… does Yeeun’s pussy… feel good…?”
The way she asked while shyly turning her head away completely shattered my sanity.
I couldn’t believe such erotic words had come from such a timid girl. Each syllable slammed into my prostate like a hammer.
“Yes, it feels incredible, Yeeun. You really are the best daughter.”
At my answer, her lips twitched shyly. Then she let out a tiny, dry little sound.
“…yare.”
Despite that low-energy utterance, her insides went wild. Her walls convulsed madly, sucking my cock deeper as if begging for my cum.
Her vaginal muscles clung relentlessly to my glans while her delicate cervix kept tapping against my tip.
I lost every ounce of restraint and drove one final, deep thrust into her most sacred place.
“Uuuugh! Yeeun, Daddy’s cumming!!”
Hot semen flooded her womb like a cascading waterfall.
Yeeun’s back arched as she clung tightly to my neck. Her narrow entrance trembled violently, squeezing my cock as if determined not to waste a single drop.
Song Yeeun's immunity has greatly increased!
Permanently grants +2 Attack, +2 Defense, and +2 Agility!
Minji nodded in satisfaction and picked up the film camera sitting beside the bed.
“Alright, Yeeun. Look over here and make a peace sign. Taehun, you look this way too!”
She thrust the lens toward us—both of us drenched in sweat and semen.
Yeeun, her face and chest still marked with the evidence of my climax, stared at the camera with dazed eyes.
Still visibly embarrassed, she shyly formed a small V with her fingers. The shutter clicked, capturing that obscene yet strangely pure moment forever.
The next morning, I woke up, sat at my desk, and noticed a digital frame glowing in my field of view.
It was the photo Minji had taken yesterday, displayed as a slideshow.
In the image, Yeeun was averting her gaze in embarrassment while making a V sign. Yet beyond that low-energy expression, her slightly unfocused eyes proved just how hard she had cum the day before.
I smiled with deep satisfaction as I admired the sight.
Then I felt a heavy presence under the desk. My zipper slowly slid down.
Instead of the cool morning air, a hot, wet warmth enveloped my cock.
Someone had begun sucking me off.
I looked down. The one responsible was none other than Yeeun.
“Yeeun… what are you doing so early in the morning?”
She only gave me a quick glance before silently continuing to suck with devotion.
“Yeah, you don’t have to say anything. If you want to suck Daddy’s cock, go ahead and suck as much as you like.”
I leaned back in my chair and gently stroked her hair.
And just like that, Yeeun was reborn as a magnificent female.