21-120

Episode 120: My Son and Daughter... Are Having Incest. What Should I Do?  

I don’t know. 

Even though I knew Mom in the next room might hear, 

I couldn’t stop having sex with Mi-hyun. 

‘She won’t notice if her mouth is gagged, right?’ 

I guess I just had that vague, optimistic thought. 

Or maybe... 

‘So what if we get caught?’ 

I’d already been caught getting aroused by Mom. 

At this point, even if I add the “crime” of incest with my little sister... what’s the difference? 

I’m already human trash. 

And thinking of myself as trash, 

I started to wonder: 

After all, wasn’t it Mom who shamelessly had sex with Dad right next to me when I was a kid? 

And now she’s betrayed Dad and become Gwak Young-cheol’s sex slave. 

She sells her body for money-how could she lecture me about morals when she’s no role model herself? 

Without realizing it, those thoughts started to tempt me. 

Why did I ever think I was the only one who broke the rules? 

Mom’s just as messed up. 

Of course, Mi-hyun, pinned beneath me, was trembling in fear of being caught by Mom. 

“Mmph...! Mmph... mmph!” 

She couldn’t speak with her mouth gagged, but her eyes clearly said, ‘Oppa? Are you crazy?!’ 

But so deep in the master-slave roleplay, I found her fear annoying and just kept pressing down on her. 

“Hey. Don’t be scared. Mom won’t catch us.” 

“...Mmph, mmph...” 

What’s she saying? 

When I took out the gag, 

“Gah, gah...” 

Mi-hyun, drooling from having the gag in so long, snapped at me in a whisper-she wanted to yell, but didn’t want Mom to hear. 

Her face, though, made it clear she was pissed. 

“Oppa, are you crazy?” 

“Knew you’d say that. Why?” 

“I mean... what if Mom finds out...” 

“She can’t come in.” 

Mi-hyun looked at me like she was speechless. 

“And if she does, so what?” 

“...What?” 

“Mom’s not exactly innocent herself.” 

“W-what are you talking about?” 

“Never mind. You don’t need to know yet.” 

“...?” 

After all, Mi-hyun doesn’t know Mom is Gwak Young-cheol’s sex slave. 

Mom betrayed Dad and is sleeping with Gwak Young-cheol. 

Makes me want to ‘be filial’ for Dad’s sake. 

...Not that it’s really for Dad. 

Thinking that, I started moving my hips again. 

“Oppa...?! S-stop...!” 

But I just clamped my hand over her mouth and gagged her again. 

Then I whispered in her ear. 

“It’s fine. Isn’t it even more thrilling this way?” 

“Mmmph! Mmph!” 

Mi-hyun shook her head hard, pretending to resist, 

but her body was honest. 

The tension and thrill of possibly getting caught by Mom made her body even tighter than ever. 

Mi-hyun, you like it too, don’t you? Be honest. 

...Even I think I’m crazy, but now I just want to be honest. 

ニニニニニ 

In the next room, Seo Na-yeon was thinking. 

‘How could he do that to Mi-hyun...’ 

The son she’d always thought of as smart and good, 

not only lusted after his own mother, 

but she’d now realized he was having sex with his little sister. 

Incest. 

Even Seo Na-yeon, as loose as she was, had never seriously considered this. 

Her own son and daughter having sex with each other. 

‘Could it be... was it forced?’ 

And, 

even though Mi-hyun was a healthy girl, 

her older brother Hyun-sung might have overpowered and violated her. 

Just like his father, Kang Tae-gu... 

The repeated sounds of ass-slapping from the next room made her suspicious. 

‘No... Hyun-sung wouldn’t do that...’ 

But, 

Even if the siblings were doing it willingly... 

As a mother, can I just let this happen? 

Let my own children have sex with each other? 

But to scold Hyun-sung and set him straight, 

she would have to catch them in the act, but she’d only overheard it from the next room and was so shocked she just froze-she didn’t even have proof. 

‘Did you have sex with Mi-hyun?’ 

If she asked, he’d just deny it. 

If she pretended not to know, it would just end there. 

If she said she heard something weird, it would just make things awkward at home. 

Those thoughts tangled in her mind, and when she actually saw Hyun-sung, she couldn’t say anything-she just avoided him awkwardly. 

‘What should I do? How...’ 

If I meet my son now, 

what could I possibly say? 

Honestly, right now, I don’t even want to see him. 

The higher your expectations, the greater your disappointment when they’re broken. 

If a celebrity known for being upright makes a small mistake, people tear them apart, 

but if someone with a bad reputation does something good, people praise them more than they should. 

Seo Na-yeon’s expectations for her son were so high that her disappointment over yesterday was just as great. 

She lay down, but couldn’t sleep at all. 

“...” 

Maybe it was just too shocking. 

Her heart wouldn’t stop pounding. 

Above all... 

She kept picturing her son raping Mi-hyun in her mind. 

“Sigh...” 

But gradually, 

her thoughts shifted from disappointment in her son’s immorality and worry about incest, 

to something else entirely. 

Did he get that from his father? 

Does he like rough sex? 

Or maybe, 

at first... 

He seemed interested in me... 

‘Hyun-sung... was interested in my body... not as a mother, but as a woman...’ 

The feeling of his big, hard cock pressing against her through just one layer of panties still lingered, like a brand on her butt. 

That strangely hot sensation... 

His panting, animalistic breath as he mounted her back-not as a son, but as a male. 

If she’d pretended not to notice, how far would Hyun-sung have gone? 

Would he have raped his own mother? 

“Mmm... mm...” 

Maybe, 

instead of Mi-hyun, 

it would be better if I satisfied Hyun-sung’s lust myself? 

Not my young daughter, but me-already defiled by Gwak Young-cheol and countless “investors,” already filthy. 

Me, with this already debased body... 

‘What am I thinking...?!’ 

Half-asleep, her thoughts grew more and more twisted, and Seo Na-yeon snapped her eyes open and shook her head. 

What the hell are you thinking, Seo Na-yeon? 

Why are you even considering having that kind of relationship with your son??? 

But, unconsciously, she realized her hand had slipped into her panties, and her self-loathing only deepened. 

‘Stop these crazy thoughts... I have to somehow talk with Hyun-sung and Mi-hyun...’ 

===== 

The next morning. 

Seo Na-yeon got up and cautiously stepped outside. 

Of course, she woke up early on purpose to avoid running into her son, Hyun-sung. 

After what happened, she couldn’t just pretend nothing had happened. 

She tiptoed to the bathroom like a guilty person, showered, and then... 

“Mom, good morning!” 

“...?!” 

Hyun-sung was eating cereal with milk, looking completely normal. 

Completely normal. 

“Y-you’re up?” 

“Yeah. Mi-hyun’s still sleeping, so I was eating quietly.” 

“...I see...” 

She’d spent all night worrying about what to say to her son, 

but he seemed totally unfazed, which confused her. 

She’d expected him to look ashamed and guilty. 

But he acted as if nothing had happened, talking to her like always. 

It was actually Seo Na-yeon, the one who’d been molested by her son, who felt more nervous and confused... 

‘What is this...?’ 

But, 

since her son was acting like nothing happened, 

Seo Na-yeon found it impossible to bring up “yesterday’s events.” 

“D-don’t worry about the dishes, I’ll do them.” 

“No, I should do them.” 

Was it amnesia? 

Right now, Hyun-sung seemed exactly like the good, smart son he’d always been. 

Not the pervert who’d rubbed his hard cock against his mother’s butt, 

but the model student who got into a top university. 

“...” 

So she couldn’t bring herself to say anything, and just watched blankly as Hyun-sung did the dishes and went to shower. 

Only after he went to the bathroom did her tense body finally move. 

“Mi-hyun...?” 

While her son was in the shower, 

she went to check on her only daughter, 

who she suspected had had incestuous sex with Hyun-sung the night before. 

“...Snooze...” 

As Hyun-sung said, Mi-hyun was still sleeping. 

Her skin was almost transparent, her face perfect, her expression angelic-still the same lovely daughter as always. 

“...” 

But she was sleeping naked. 

And the room was filled with the musky scent of sex...