Chapter 154: Side Story - Bunker (12) ♥
Chapter 154: Side Story - Bunker (12) ♥
I worried things might get awkward.
To be honest, I hadn't even given it a thought until the moment I actually did it.
Not even right after I’d blasted my semen toward her lower abdomen, where her uterus would be, and certainly not when I was using my glans to rub it in, treating her skin like a living tissue to wipe myself dry.
Not even when Kang Yu-min was clutching my forearm, leaking vaginal fluids and letting out a messy moan as she reached her climax.
In those moments, all I could think was how fucking hot it was. I didn't have a single shred of worry about the aftermath, the potential awkwardness, or what we were supposed to do from then on.
I treated her like a piece of toilet paper used after a jerk-off session, and I knew she viewed me in much the same way.
I actually liked that. It felt... like something uniquely "us," in a sibling sort of way.
If I were to perform some mental gymnastics and try to justify it, I could put it like this:
Kang Yu-min and I didn't harbor romantic feelings or even traditional sexual desire for one another.
We were simply using each other's bodies as convenient tools for sexual release. Therefore, this wasn't even a "quasi-sexual act"—it was closer to masturbation.
It was a pretty ridiculous argument, but at least that’s how I chose to see it, and Yu-min seemed to feel the same.
Actually, she went one step further.
Yu-min acted as if this were no big deal at all.
It felt like a game of chicken—the first one to care, loses.
Even though she was clearly embarrassed, her face flushed red, and she was still breathing heavily from the lingering excitement...
She went out of her way not to mention it.
She acted as if it were just a natural part of our routine.
For me, this was a good thing. Honestly, I was reaching my limit with just fantasizing and masturbating alone in the bunker.
Even though the lingering guilt of her being my sister—my family—remained, if I ignored those minor details, Kang Yu-min had a body that was perfectly made for jerking off to.
That fact was proven by my own body soon enough.
After we washed, dried off, and headed to the bedroom to lie down side-by-side...
I faced her, and my cock stood tall once again.
Maybe it was because I hadn't masturbated in nearly a month, or because I hadn't seen a woman's naked body in any form of media for a year and a half.
My cock stood firm and refused to go down, as if demanding I release all the suppressed urges I’d been holding back.
It was driving me crazy. Fortunately...
"...W-what? Again?"
Yu-min blushed at the sight of it. She stuttered slightly, clearly embarrassed, but she didn't try to stop me, condemn me, or say anything negative.
Had her mindset changed after what happened in the shower? Yu-min narrowed her eyes slightly and looked back at me.
"You pervert."
The way she teased me had a strange way of stoking my fire. So, I spoke up with feigned confidence.
"Look who's talking. You're the one who got off on getting blasted with cum while fingering your own pussy."
"You think it was because it was your cum? It's just... I've been celibate for a year and a half. I was just horny."
That was a blunt way to put it. I was a bit surprised. I didn't know she had it in her to say things like that.
But I tried not to show my surprise. That would just give her more ammunition to tease me.
"Same here, okay? I haven't even seen a porn video in a year and a half. That's why I'm like this."
"Hmph, is that so?"
"What's with that look?"
"Isn't it because my body is just too... hot?"
"...If you're embarrassed, don't say things like that."
"I'm not embarrassed. Not even a little bit."
Yu-min's stubborn insistence was exactly like her usual self.
She was naked, her face was slightly flushed from excitement, and she kept stealing glances at my cock...
But the way she acted like nothing was wrong...
It was strangely erotic. It felt like common sense was crumbling, and the sense of depravity was no joke.
"So? You're saying it's not because of my body, it just happened to stand up on its own?"
She was persistent. I frowned slightly, about to deny it, but then...
"If you tell the truth... I might even show you."
"Yes, I'm hard because I'm looking at you."
"Dumbass."
I had no choice but to surrender to her persuasion.
After all, Yu-min's body was incredibly sexy.
Her breasts weren't monstrously large like Mom's, but they were a solid handful.
And her skin was smooth from good care, with subtle muscle definition—a body that was lean yet voluptuous.
From her perky, uplifted butt to her thick, alluring thighs... it wasn't empty praise. If I hadn't seen her face and just came across a photo of that naked body, I definitely would have saved it in my private folder and used it often.
So, wasn't this just an irresistible force of nature?
It wasn't that I was turned on because she was my sister; it was just that Yu-min happened to have a fucking hot body that she took great care of.
So, it was only natural that I’d get hard and want to look, right?
After reaching that logical conclusion, I could even tolerate her giggling and calling me a dumbass.
"I mean, honestly. With a body like that, it'd be weirder not to get hard."
"Hey, hey. This is your sister's body."
"So? If you weren't my sister, I would've used you as jerk-off material all the time."
"Ugh, seriously. You really are a pervert."
Yu-min giggled, seemingly enjoying herself. I glanced at my cock, which was throbbing so hard it almost hurt, and slowly reached down to grip it.
I began to stroke it up and down. As I started to jerk off with slow, deliberate movements, Yu-min watched me with a reddened face.
"...But, in the end, it is your sister's body, isn't it?"
Her hesitant question hit the nail on the head. We were, undeniably, family.
"I guess so."
"Th-then... shouldn't we not be doing this?"
"Maybe. But... if we're family, do we really need to care about that stuff?"
"Huh?"
"If we're always worried about seeing each other naked, it'll feel like we're not even family anymore. It's not like we're 'dating' or anything. If we just... use each other to help with masturbation, isn't that fine?"
Yu-min seemed to have belatedly learned the unspoken rule: the one who brings it up first, the one who acknowledges it, the one who breaks the silence—loses. She let out a small gasp of realization at my words.
"Aha."
She added the sound as if trying to take back her previous hesitation. She glanced down at my cock, and seeing my eyes roaming over her body, she shifted her weight slightly.
"So, show me your pussy. You said you'd show me if I told the truth. Or... does it bother you if I jerk off while looking at you? Are you going to get all self-conscious?"
Yu-min hesitated visibly. She wavered, her desire not to lose battling with her modesty.
As a mix of contempt, annoyance, excitement, and something akin to familial affection flashed through her eyes, she put on a determined, awkward smirk.
"Who says I'm bothered? Look if you want to."
And just like that, an unspoken rule was established between us. Yu-min tossed and turned a bit before coming to a stop.
"...But how should I show you?"
"I don't know."
"Hey, you're the one who asked. Then you should..."
"What if you climb on top of my face?"
"I want to stay lying down."
"Well, I want to lie down and jerk off comfortably, too."
Our opinions clashed. Sensing the mood, Yu-min glanced at my cock again, using it as eye candy.
"And what about when you blow? I saw earlier, you produce a lot. If it gets on my body, I'll have to wash again."
"Ah."
"Don't 'Ah' me."
But it seemed Yu-min didn't have a better solution either. Of course, I had an idea in mind.
But it felt a bit too soon to ask for that.
So I was debating whether I’d have to run to the bathroom at the last second—and wondering if I could even maintain the mood until then—or if I should ask her to come with me, or if I could just blast it on her again. My mind was racing when...
"Hey."
"Yeah?"
"...There is a way to look at my pussy and... take care of the semen at the same time."
"...No way."
"I'm only doing this once, so you'd better hope the next set of instructions includes toilet paper or something. Or we only do this in the bathtub..."
She was grumbling, but it was obvious what she was getting at.
"You're going to use your mouth?"
"No! Are you crazy? I'll just... catch it in my mouth when you're about to finish. I was a little curious about what it tastes like anyway..."
"You're the pervert."
"Look who's talking. The guy who gets hard looking at his sister's body is the real pervert."
"Oh? Are you getting self-conscious again?"
"No, I'm not!"
Despite the bickering, we brought our bodies together, fueled by vivid arousal.
"I'm lying on the bottom."
"Aw, I wanted to lie down."
"I'm showing you my pussy and eating your cum, and you can't even do that much?"
"Tsk, fine."
Yu-min lay on the bed, and I positioned myself over her in the opposite direction, bracing myself like I was doing a plank.
It wasn't a full plank since my legs were resting on the bed, making it relatively comfortable.
Relatively being the keyword. Thinking I should finish quickly, I kept my hand moving while bringing my face close to Yu-min's crotch.
And there, I saw Yu-min's pussy from a distance I had never experienced before.
Not a single hair in sight; looking closely, there was just a hint of fine peach fuzz on her slick, wet pussy.
The pink flesh was vivid, and the juices she’d just leaked were soaking her thighs and buttocks. My sister's pussy.
Even with the thought of us being family, it was insanely hot. For a moment, I even imagined putting it in.
But that had to remain a fantasy. I unconsciously sped up my hand and spoke.
"Oh..."
"H-how is it?"
"It's fucking hot."
"Looking at your sister's pussy and saying 'fucking hot'... you pervert..."
"Look at you, you're leaking like a faucet just watching me jerk off."
"Hey, hey! Watch your mouth...!"
"Oh? Are you self-conscious?"
"No! It's just... ugh, whatever."
I could feel her breath on my cock. Her hot exhales hit me, providing intense stimulation.
"I shouldn't touch it, right?"
"No. Seriously. No. Absolutely not."
"Tsk, shame. Then, spread your legs a bit more. I can't see well."
"...L-like this?"
Yu-min spread her legs. Because she was flexible, they opened wide, and her pussy seemed to pucker. Even that was incredibly stimulating.
The angle wasn't perfect for seeing everything, and I started to think it would have been better to have her lie on the bed while I rested my chin on the edge to watch.
No, wait.
"Hey, next time I'll watch from below the bed. That'll be more comfortable and hotter."
"N-next time?"
"Yeah, next time. Is that a no?"
"It's not a 'no'... do you really like it that much?"
"It's fucking hot. Seriously."
She didn't respond, but I could hear a hint of a smile through her heavy breathing, as if she was pleased.
Typical loser, getting happy over something like this. I almost smirked, but then I realized my hand was moving faster and faster.
I was close. Because the visual and auditory stimulation was so vivid, the urge to ejaculate was rising rapidly.
"I'm almost..."
"Oh, really? That was fast."
"Yeah..."
"Oh, then... what should I do? My legs, or my mouth..."
"Stay like that... and open your mouth..."
Huff, huff. Breathing heavily, I frantically stroked the shaft, gripping the base and stimulating it with rapid movements.
Feeling the semen starting to surge up the urethra, I felt Yu-min's breath through her open mouth.
She opened wide. I could blow right now.
Like a latrine, I would ejaculate directly into Yu-min's mouth. The thought made my cock go rigid, and my brain felt like it was turning white.
I curled and uncurled my toes, tensing my waist and glutes as I held my breath, pushing the semen out.
It's coming. A big one. Today's volume was already record-breaking, but I felt like this was going to be the biggest yet.
For a split second, I wondered if it was okay to blast this into the mouth of an inexperienced virgin, but that thought vanished instantly.
"I'm coming...!"
I gritted my teeth, my waist trembling as I ejaculated.
Yu-min's body flinched, and the spurting semen landed in her mouth.
The globs of cum poured out faster with every stroke of the shaft, and the sheer volume proved my premonition right as the ejaculation lasted for what felt like dozens of seconds.
Wow, I really produced a lot. This is definitely a record.
As I panted, my mind blank, I saw Yu-min's pussy squirt a bit of fluid as she reached her own climax.
What a pervert. As I let out a faint smile, I suddenly felt a surge of pleasure.
"Ugh...?!"
A soft, warm sensation enveloped my glans. A powerful, sucking pleasure. As I gasped, feeling a jolt of electricity travel from my brain down my entire spine, the sensation peaked and then vanished. What the hell was that?
I lay dazed on the bed and looked back at Yu-min. She had her eyes wide open, looking just as startled as I was.
She had taken my glans into her mouth and then let go. She used her thumb to wipe the remaining cum from her lips, put it in her mouth, and swallowed.
Yu-min looked at me with a dazed expression, as if she had just eaten something delicious.
What? It should be bitter. And fishy.
As I looked at her with a bewildered expression, Yu-min spoke as if she couldn't believe it herself.
"...It's delicious?"
"Huh?"
What the hell was she talking about?
I was so stunned I forgot to even ask for clarification.