How Long Have You Known...?! (3)
"How long have you known...?!"
My sister looked utterly flustered. She twisted her body and twirled her hair awkwardly as she stared at me. I wasn't sure why the fact that she knew made my blood rush like that, but I started shaking my legs where she couldn't see.
"It... hasn't been that long. About two weeks ago...."
"So before our trip?"
"Well... I guess so...."
The memory of her grinding her ass against my cock during the trip flashed through my mind. I had almost come right then. Knowing that she had been aware I ran the Incest Gallery and had done it on purpose made my fingers twitch with the urge to do something about it.
"Then when we slept together... you saw...?"
"Saw what...?"
"Me... no... I mean... how much do you actually know?!"
"Just... besides the grinding, not much...."
"......"
My sister's face turned beet red. Or should I say radish red these days?
"Then, um... you didn't hear anything while we were sleeping, right...?"
"...What did you do?"
"N-nothing?! I didn't do anything...?"
Her expression screamed that she was one hundred percent guilty of something. Was this what they meant by a thief's guilty feet? I wanted to press her more, but it felt like I shouldn't peer any deeper into that abyss, so I let it go.
"When did you find out, sis?"
"...A few months ago."
"A few months...?"
"So you've known way longer than me...."
"...Yeah."
"...When you found out, you didn't feel disgusted or anything?"
"......Not really."
"Why...?"
"I just... thought we... have similar tastes...."
"......"
Her voice grew quieter and more slurred toward the end. She was trying to maintain the dignity of a Ju-ttak, but her trembling expression betrayed her completely. Even I, thinking these things, couldn't look at her properly right now.
"We're... the same."
"...The same?"
"Yeah... our tastes."
"......"
"......"
If the girl in question was someone as pretty as my sister, it was definitely possible. From the moment I started the Incest Gallery and looked at the posts, she was the first person who came to mind. It wasn't just once or twice that I'd had all kinds of fantasies about her.
"...Is that... a relief?"
"I don't know...."
Siblings sharing the same tastes. In a blood-related relationship where such things must never happen, enjoying those kinds of acts and feeling something through words. Of course, my stance was closer to "any woman is fine," and having it be my sister didn't particularly bother me.
Actually, it's a good thing.
The hurdle between me and my sister had dropped sharply. Maybe if I said, "Want to try it for real?" she might actually agree. I was still too nervous to say it out loud, but the possibility was definitely there.
"Then... sis...."
"Yeah...."
"Why did you pick me?"
"Why did you apply...?"
"......"
Because I didn't want her meeting other guys. There was nothing more unpleasant than the person I had already marked in my heart going on a date with some random man.
"...Because I hated it."
"Hated what?"
"You meeting other guys...."
I scratched my head without thinking. At the point where we were already taking turns spitting out embarrassing things, saying something this cringey made me want to die from shame. She wasn't even my girl, so why was I deluding myself into thinking she was...?
"H-hmm... I see...."
My sister lowered her head, staring at her phone.
"Are you feeling sick...? You're not suddenly grossed out by me, are you...?"
"N-no...? It's just...."
She started to scratch her head like me, then switched to twisting her hands instead.
"I just thought... you have good... sense or something——"
"Your order is ready. Palm Burger, Forest Burger, vanilla shake, and parmesan fries."
"......"
"Thank you...."
Right before the atmosphere could explode somewhere, the hamburgers saved us. The delicious smell helped calm our nerves a little. I drank some water before the meal and put a napkin around my neck.
"...Here."
I put a napkin around her neck too. I could have just handed it to her. I did something I didn't need to do.
"W-what...?"
"...What do you mean?"
"Are you telling me not to ask right now?"
"You're wearing white too."
Specifically, a white t-shirt with a sky-blue bra. If food splattered, her eyes would go there and she'd definitely see the bra, so I gave it to her. That's all it was. Even though I'd already seen it.
"...It's good."
"Yeah... it is."
To be honest, it tasted good. But I had no idea what I was even eating. I was too conscious of my sister. Especially her chest.
"Huh...?"
"What?"
"That's the one I already drank from...."
"...?"
I had just wolfed down the burger and rinsed my mouth with cola. I didn't realize it was the one she had used. Don't girls usually pick the red straw if there's a red and black one...?
"Ah... I didn't know."
"I-it's fine! It doesn't matter!"
"Yeah...."
The thought that I had indirectly kissed my sister made my heart pound. The only kiss I'd ever had was during military training when I kissed the ground.
"Jiyun."
"Yeah."
"I'm going to... go fix my makeup real quick...?"
"Oh, sure... go ahead...."
Finally left alone at the table, I let out a sigh of relief.
I almost died back there.
Just thinking about touching her even a little made my cock harden completely. I somehow managed to adjust myself, but it was sticking out so much I had no choice but to cover it with my clothes.
If sis were under this table right now....
While my sister was in the bathroom, I instantly cooked up an entire short story in my head. Not with a secretary under the desk, but with the title Our Sister.
"...I'm full."
"Whew...."
Once the tension eased, I got hungry and devoured every last bite of the remaining hamburger. It was so good it made me glad I came. She didn't secretly do something in the bathroom, right...? No way, even she wouldn't go that far.
"Thanks for the meal."
"I got to eat something delicious thanks to you too, Jiyun."
"...Yeah."
When I saw her slightly protruding belly, the erection I had barely managed to tame started swelling again. It seemed the perverted demon possessing me had only grown stronger.
"...Where do you want to go now?"
"...Want to take a walk? To help with digestion."
"S-sure!"
The lakeside park nearby was crowded even though it was a weekday. Well, there weren't many other places to eat and have a date. I was naturally thinking of it as a date now.
"......"
"......"
We couldn't talk about the gallery in a place with this many people. If anyone overheard, the fact that the Ju-ttak and Pa-ttak were siblings would spread across the entire internet. Especially if the armband-wearing admins of the Incest Gallery were doing it.
"The w-weather... is so nice...."
"It's already night...."
"Oh, right...."
I said the kind of thing people say when they have nothing else to talk about. The weather this, the weather that. Still, at least this kind of conversation seemed like it could clear away the strange atmosphere that went beyond mere awkwardness. We kept a distance that felt both close and far.
"Ah."
"Ah."
As we walked, our arms inevitably brushed. The softness I felt for that brief moment. I wanted to be bold and push forward, but doing that in front of people was still too much.
"Um... sis. I have a question."
"Yeah...? What is it...?"
"Asking to meet today... was that on purpose?"
"......You knew about that too?"
"It just... felt like we could've met yesterday too."
We had time yesterday. I could've slept in the morning and come out in the evening. But she had specifically suggested today.
"I just... thought you'd be tired, Jiyun...."
"You came straight after work. You seem more tired...."
"I'm... fine. Because you're here, Jiyun."
"Me...?"
"I-I mean...? Just because I get to eat delicious food with my little brother?"
"......"
Eating delicious food with my sister gave me strength too. It was a good thing I had energy to spare in other areas.
"What should I even say now...?"
"About what...?"
"I can't exactly tell her I was actually the younger brother of the Ju-ttak."
"O-of course not! Never say that!"
"Right...?"
This had to stay a secret for life. Not that anyone around us knew we were the admins of the Incest Gallery or that we were siblings anyway.
...Then did other people see us as a couple right now...?
Now that I think about it, that Pa-ttak....
I wasn't the only Pa-ttak. There was another admin with the unforgettable nickname IncestLoner running wild in the gallery my sister created. If that person ever crossed the line with her, I'd have no choice but to eliminate them.
"Oh, right. Sis."
"Yeah."
"What happened to the old Pa-ttak?"
"Huh? What Pa-ttak?"
"The previous one. IncestLoner. I haven't seen them around lately."
"Ah...? Ohhh...! They said it was too much trouble so they left! I told them I understood."
No wonder they never even greeted me despite being fellow Pa-ttaks. Well, it was better not to get involved with a potential criminal. I hope their little sister is okay. Please, just don't let any incidents happen.
"But why are you asking about that Pa-ttak...?"
"That person was a total psycho. Saying they wanted to do it with their sister and then posting those kinds of things... Wait, we're outside so I can't say it, but they were always uploading those blatant posts."
"......"
"You know. The potential criminal. Just from the way they talked, it seemed like they might actually do it. It was scary. I'd rather it all be fabricated. I almost reported them once."
"......"
"When that person talked to their sister, what kind of things did they... Sis?"
When I looked to the side, my sister had whipped her head away. Then she went completely silent.
"What's wrong...? You're even sweating."
"......I'm sorry."
"For what?"
"For always... saying I want to do it with my brother... that I want to push him down... that I can't hold back anymore...."
"What are you talking about...."
My sister suddenly started apologizing. She listed all the things the Pa-ttak had done while watching my reaction. Her voice grew smaller and smaller.
"S-so basically...."
She clutched her t-shirt. The collar dipped slightly, almost revealing her collarbone.
"That Pa-ttak... was me...."
"...What?"
"Yeah...."
My mind went blank. The person I had thought was a criminal... was actually my sister...? The quiet and diligent Ju-ttak had been acting out as the insane Pa-ttak all by herself...?
So sis was that kind of insane pervert....
That explained why posts only got deleted at night. Because during the day she was active as the Pa-ttak. It was like Jekyll and Hyde....
"...Then sis."
"...Y-yeah?"
"All those posts... about wanting to fuck my brother... about not being able to hold back... you wrote every single one yourself...?"
"W-well...."
Even after we walked two more full laps around the park, neither of us could say another word.