Using Semen as Body Wash Substitute is Common Sense
"...Huh?"
Did I hear that wrong? My brain just froze for a second.
My stepsister, fresh out of the shower with water dripping everywhere, barely covered by a single towel, was telling me to drop my pants.
"What are you doing? Hurry up and drop 'em."
Kim Dayeon's expression was dead serious. No, more like completely matter-of-fact, like she was asking for something totally obvious.
"Dayeon, what the hell...?"
"Ugh, come on. The water's gonna dry."
At her words, my eyes instinctively flicked to her bare skin. Her flawless white flesh glistened, soaked with moisture. Dayeon let out an annoyed sigh and stepped closer. A wave of hot, steamy air hit me, carrying the faint scent of shampoo. Up close, it was even more maddening. I had nowhere to look but had to turn my head away.
"You sick or something? Got a fever?"
"What're you talking about all of a sudden? If I wanna fill up the body wash, I need yours, right?"
"...What?"
"It's urgent, so just give it in my hand. Quick, before the water dries."
The words coming out of Kim Dayeon's mouth were light-years beyond my common sense. So, what she was saying was...
"...What do you want?"
"God, seriously... What kind of hunter is this dense? I want your semen! No body wash, so just cum quick!"
I was the frustrated one. Out of body wash, so she'd use my semen instead?
What kind of fucked-up situation is this?
But unlike my head, my body was reacting on instinct. The subtle curve of her collarbone peeking above the damp towel, the steep swell of her breasts below. Her thighs gleaming with moisture. And above all, that fresh shampoo scent from her just-washed hair.
Damn.
Has she always had a body like this? She'd been pretty since we were kids, but...
I swallowed hard without realizing it.
I knew I shouldn't be reacting to my stepsister like this, but my body was moving faster than my hesitation.
"Ugh, so frustrating... Just stay still."
Finally tired of waiting for me, Dayeon took matters into her own hands.
Smooth—
"H-Hey! W-Wait a sec!"
Her hand grabbed my belt and yanked it open roughly. Zipper down, pants off—it was over in seconds. Cool air hit my suddenly exposed underwear-clad lower half.
"Whoa, you're already all ready."
Dayeon's gaze locked onto my crotch. She smirked at the massive tent straining against my underwear, on the verge of bursting.
"...No, that's not—"
"No excuses. Hurry up, it's cold."
Without hesitation, she shoved her hand into my underwear.
"Ngh!"
Cold, damp fingers gripped my sensitive spot in one go. The stimulation you shouldn't feel from family made me reflexively jerk my hips back.
"H-Hold on. Dayeon. Even so, between siblings... this is... "
"What're you on about? You must've eaten something bad. And you're not even my real brother."
Hm, true. Blended family. But still, this felt wrong...
"Just stay still. Don't waste it."
With that, Dayeon started pumping my dick like she was dispensing body wash—mechanical, restrained motions.
Stroke, stroke...
I desperately resisted the pleasure creeping up from the base, but she just got more annoyed and sped up.
"...H-Ha, wait! Hey, Kim Dayeon!"
I swallowed the moan threatening to escape and grabbed her wrist. She winced at my grip and glared up at me.
"Ugh, why stop now when it's almost out? You're wasting it."
"...You, you're serious."
I was speechless. My body was responding, but my reason was screaming warnings like mad.
Dayeon's eyes dropped to her captured wrist, then back to my face.
"—Let go."
Her voice was quiet. Not angry, just frustrated—let go already.
I released her. She pulled her hand out of my underwear, wiping the sticky precum roughly on her thigh.
"You impotent or something, bro?"
"What?"
"Or you holding a grudge against me?"
"No, it's not that."
"Then what?"
"... "
I shut my mouth. I couldn't explain it logically to a stepsister demanding my semen.
—'No, it's just... you're sweating so much. Aren't you hot in all those layers?'
Suddenly, I thought of that woman I'd seen on the way home.
"Haa..."
Dayeon let out a long sigh. Then she looked at me like I was ridiculous.
"Fine. Go to the mart, whatever."
She turned and slammed the bathroom door shut.
Bang.
I stood there for a while. The cooling dampness and the sensation of her hand still lingered on my skin. Her eyes had seemed oddly disappointed.
I'm not the weird one... right?
Of course not. My head got it. The problem was, even knowing that, I hadn't refused her touch outright—and when I finally pushed her away... my dick was already throbbing.
I ignored that fact as I headed out the door.
Fuck.
Descending the stairwell—no elevator—I thought for the first time that this skill might truly be a curse on me.
By the time I reached the bottom, I realized my fly was still open. I'd rushed out without fixing it. I zipped up hurriedly and picked up the pace.
The early evening alley was normal. Grill exhaust fans humming, latest ballad drifting from somewhere, the heavy air of rush hour. But after what happened, I couldn't help scanning my surroundings even on this familiar path.
"... "
My eyes met a woman's drinking canned coffee in front of the convenience store. Sleeveless top. Nothing weird about that in this weather. The issue was she wore nothing underneath. Her clear outline asserted itself through the thin fabric. And neither she nor anyone passing by gave it a second glance.
I fixed my gaze ahead and kept walking.
The mart wasn't far. The auto-door whooshed open, blasting cold air. I'd been coming here for three years since moving in, but the vibe felt off. I scanned around.
A few customers. One guy pushing a cart in just his underwear, browsing shelves. The woman picking veggies next to him didn't bat an eye. So I ignored it too and headed to the body care aisle.
Scanning for the product Dayeon had sent a pic of before, my eyes naturally drifted forward.
——And now, the next news.
A TV mounted on the inner wall blared the news.
——The Red Gate that appeared in Gangbuk-gu on the 16th has been successfully cleared and dissipated as of 4 PM today. The key player in this raid was Hunter Yoo Yeon-hwa, defying industry predictions that terrain breakthroughs would take much longer—
The young anchor, in a bunny girl outfit with her chest fully exposed, read the news calmly.
Nationwide.
I grabbed the body wash and thought. It was definitely connected to that wave I'd felt earlier. I'd already sensed it wasn't limited to Seoul.
News broadcasting normally. This phenomenon had spread far beyond Seoul's outskirts—nationwide at minimum. Maybe even global.
Yet no one noticed the change.
I checked out and stepped through the auto-door, opening my skill window.
Cognitive Protection Barrier (Lv.1)
B Rank
Grants immunity to all mental attacks, perception interference, and reality alteration skills. Slightly increases willpower.
[Skill currently active!]
"... "
I'd never used this skill before. Low-rank gates didn't have mental-attack monsters. But today the world changed, and this long-dormant skill suddenly kicked into gear.
Mind control, or... common sense alteration.
The skill being active means...
On the way back, I paused under a streetlamp.
Not natural. A skill, or something I didn't know. Either way, someone was twisting the world's common sense into something grotesque.
This was man-made.
A chill ran down my neck. My hand gripping the plastic bag was sweaty. I wiped it roughly on my pants and kept walking.
Climbing the stairs, I sorted my thoughts.
...What if.
Unidentified nationwide mind control. I didn't know the details, but the skill was clearly protecting me from it. Maybe I was the only one unaffected.
If they find out... what happens?
A foreboding chill shivered down my spine.
...Maybe visit the Hunter Association tomorrow.
I was already exhausted from gate raids, and today had been too much. I was beat. But sleep felt far off.
As my hand reached the door lock, I heard noise from inside.
Bang— a drawer slamming. Then Dayeon's voice. She was on the phone, her tone lower than usual.
"—So bro wouldn't give it. I seriously don't get it."
Couldn't hear who it was. Friend or college buddy, probably.
"No, not exactly. He's just acting weird today."
Weird. Yeah, that's how I must look to her. By this world's 'common sense,' my reaction wasn't normal.
My head understood, but accepting it was hard.
I stood there without punching in the door code.
"...What? Smelled good? Ugh, you perv. Come over and shower here or what?"