The Secret Life of Sisters
…Sex. We did it. And with Seo Woojin, no less—the very person I’d sworn to myself I’d never sleep with again.
“…”
Of all places, it had to be in the room where I was supposed to be sleeping. We left behind such a thick, erotic scent, losing track of time, suffocatingly intense.
“…”
Sometimes, because I was lying on my side, the fluids pooled deep inside me would leak out, smearing across my hips and thighs. Sometimes, he’d pin me down so I couldn't close my legs, pounding into me as if he were trying to imprint me onto the mattress. Sometimes, I was forced to crawl low, unable to even bend my knees, face buried in the pillow while he took me for what felt like an eternity. Sometimes, I’d straddle him just as he commanded, wiggling and moving my hips with everything I had. And sometimes, we’d leave the bed and wander, leaving the scent of a rutting male and a rutting female all over the places… where I lived my daily life.
In the end, even in the shower where we went to wash off, I was pressed against the water-slicked walls. Slap, slap. Perhaps because it was a bathroom, the lewd sounds echoed even more than in the bedroom, loud enough to make my eardrums throb. For a long time. Until the sweat oozing from our sex became more than the water clinging to our skin. For a long time. I completely forgot the purpose of being there to wash, and as he choked me with his thick, aroused arms… I kept gasping, “Master, Master,” obediently, for such a long, long time. We had sex.
And these were the things I gained from it.
“…”
The housekeeper, who returned late at night, seemed busy avoiding my gaze. I, in turn, couldn't meet her eyes either. She asked me cautiously if he was my boyfriend. Since I couldn't exactly tell her he was my sex partner, I gave a bitter, awkward request for her to keep it a secret from my father. When she asked even more carefully if I planned to bring him over every day, I dodged the question with a vague, non-committal answer. She said she’d prepare more bedding and snacks. I could only nod, unable to say a word.
The fresh, fluffy bedding that replaced the damp, ruined sheets. The lingering scent of sex that hadn't fully vanished despite the long ventilation. I crawled into the blankets to sleep, but the memories of just a moment ago kept flooding my mind. And finally.
“…Kyaaah….”
The shame that only began to hit me right before I fell asleep.
“Why, why did I say things like that!”
Because of that, the sound of me kicking the thick duvet echoed through the bedroom in the middle of the night. What? I want to stop being sex partners…? We had sex less than thirty minutes later, even if I tried to dress it up as masturbation, so what do you mean you want to stop? The same goes for saying “no kissing, no sex.” If I was going to make rules, I should have been the first one to follow them. Why did I let myself get swept up in his pace instead of even trying to keep them? Besides, Mas… Master…? Who actually says that in real life? No matter how aroused I was, does that even make sense? That’s something you only hear in porn or read in erotic comics. How could I say that in front of him, you idiot? What must Seo Woojin think of me? He’s going to think I’m an even bigger pervert than Yozora. Last time I checked, Yozora only saved his name as “Master” in her phone; she’d never actually called him that in person… Ugh….
“Hoo… Hoo….”
O-of course, thanks to that, the sex felt amazing…! And since I’d already crossed that line, it would be easier to reveal other tastes little by little next time…! Anyway, I’m so embarrassed I can’t sleep. And that excuse, “You enjoyed my body more than Yozora’s, didn’t you?”—thinking about it now….
“…”
Yozora. Yozora…. While fighting with my blanket, I muttered the name I’d completely forgotten while having sex, poking my head out from under the covers. Regardless of how we got here, I ended up having sex with him just as Yozora wanted, but… there was one problem I had to solve.
“…”
He enjoyed my body—a mere sex partner, someone barely closer than a friend—more than his girlfriend, Yozora. What if things get awkward between them because of this? What if bad rumors start spreading before I even know it? Instead of helping the group’s image by making friends, if rumors start going around that I’m a “slut who stole her friend’s boyfriend,” and I end up becoming a hindrance to my father… what should I do?
165
…I’m not sure, but the atmosphere has definitely changed recently….
“What are you looking at?”
“Your face.”
“Ah, damn… that’s creepy….”
“What’s with ‘creepy’ to your heaven-like older sister? Heaven-like.”
“Heaven-like, my foot…. Then what am I supposed to say when you stare at me while I’m eating? Of course it’s creepy.”
“I wasn’t staring.”
“In my book, that’s staring. …It’s not like you’re a lesbian.”
It’s not because of Jiyoon’s tone. Was it since she was in middle school? When she was really little, she followed me around like she couldn't live without me, calling me “Unnie, Unnie,” but after puberty, something happened, and she’d become a bit more rude than before. It’s not much different from usual.
“Aren’t you going to eat the last egg roll?”
“You eat it…. …No, you eat it, Unnie.”
“I’ll split it in half, so you take the bigger piece.”
“Forget it. I’m just full.”
“Ugh…. If I give it to you, just eat it. Come on.”
“…”
“You’re always eating nothing but ramen, huh? You should at least eat an egg.”
“…”
It’s not because of Jiyoon’s appearance, either. Her pure white bob cut, chopped off at the shoulders because she said it was a hassle to style, is the same. Even when I buy her cosmetics and tell her to please look nice, she just uses lotion because it’s a hassle, and that face is the same. Her cold, expressionless face that’s easy for strangers to misunderstand is the same. The coat she wears over her school uniform… well, that changed to one Woojin bought her. Either way, it’s not much different from usual.
“…”
However, aside from the atmosphere, there is one thing that has changed.
“But why are you waking up so early these days?”
“Am I not allowed to wake up early?”
“No, it’s not that you’re not allowed to, but… ugh….”
“…”
Until high school, she used to wake up so late that she’d often skip breakfast, but these days, she crawls out of her room every time I eat. She doesn’t even come out right on time; she wakes up early enough to finish things like showering while I’m preparing breakfast. Does that have anything to do with the atmosphere? If I think about it, I’m like, “Well….” but it has definitely changed.
Anyway, if you ask what Jiyoon’s changed atmosphere is like.
“You used to sleep until this time in high school and ask me to wake you up, but these days you wake up fine without me, so I’m just asking.”
“I cut down on gaming. I’m an adult now, too.”
“I see…. Come to think of it, I haven’t heard you talking about this and that until dawn lately.”
“…”
“I used to wake up sometimes because of that….”
“Can you hear it that well? From your room to mine? Even with the door closed?”
“It’s not that I can hear it perfectly, but if I’m against the wall by the bed, I can hear a faint mumbling? Just about that much?”
“…”
Lately, it’s strangely…. Should I say it’s like Jiyoon is interested in me? No, no, is it weird to call it interest? I can’t think of any other way to put it, so I have to call it “interest,” but anyway, it’s because Jiyoon’s suspicious behavior isn’t just one or two things.
A few days ago, she said my tastes were like a pervert’s, and that since Woojin, who has to cater to my tastes, is pitiful, she should watch from the side when we have relations—that was one thing. Then there’s the fact that she started wearing the dolphin shorts she used to bury deep in her closet, saying they weren’t pretty and telling me to wear them myself instead of saying they looked good on her. There’s the fact that she learned how to use the washing machine for the first time in 20 years, for things like blanket laundry or underwear laundry. When was it? I came home and she slipped out of my room, saying “I cleaned up a bit” and nagging me about why I’d made such a mess. Adding to that, her asking useless questions about my room like she is now… it’s suspicious. It’s suspicious. Is she really this interested in me?
Even the conversation we just had—if it were the Jiyoon I know, she would have cut me off with a “So what?” feeling. It’s suspicious…. Why is she acting like this lately….
“I’ll clean this up, so you go brush your teeth first.”
“Forget it. I’ll do it today, so you go in first.”
“Do what? …The dishes?”
“Yeah. Why? Are you anxious about leaving it to me?”
“Of course I’m anxious, you idiot. You’ve never done the dishes? …Or have you? Maybe once or twice?”
“I did it a few days ago. You just squeeze the sponge, scrub, and rinse with water, right?”
“That’s… true, but… if you don’t rinse properly….”
“I’ll rinse properly, so go brush your teeth. Before I change my mind.”
“Hmm….”
“If you’re going to look at me like that, I’m just not going to do it.”
“W-well, I’m counting on you…?”
“…”
What is this? She’s going to do the dishes for me? Jiyoon, of all people? …Ah. Does she have something to feel guilty about? I stared at the rubber gloves that didn’t suit Jiyoon’s usual image at all. I slipped into the bathroom before I could hear another word, and I started to deduce things, focusing on the idea that had just popped into my head.
…But.
“Hmm….”
Brush, brush, brush…….
At first, I thought it was a pretty sharp idea, but once I started guessing, it wasn’t like that at all. In the first place, it’s routine for her to treat me like she’s the older sister, so the intensity of her guilt naturally escalates. It’s not like Jiyoon is the type to be this self-conscious just because she messed up the laundry. And when I try to think of what big mistake she could have made, my daily life is the same as usual, so I have no idea. Since she saved money working part-time at a cafe during winter break, she wouldn’t be doing this to ask me for pocket money. What on earth could it be?
Brush, brush…….
While I was brushing my teeth looking in the mirror, another absurd idea popped into my head following the one I’d just had, and I paused for a moment.
Jiyoon, who followed me around incredibly well when we were little. Jiyoon, who became a bit colder after puberty. Jiyoon, who started to change after I started dating Woojin. Jiyoon, who joined us without any trouble even though she probably didn’t feel like it when I asked if she wanted to go clothes shopping with Woojin. …Jiyoon, who spends all her time playing games with Woojin. Jiyoon, who started coming out to greet me every time I returned home, and Jiyoon, who started waking up early in the morning to eat with me. If I applied just one possibility to all of this, it could be explained as cleanly as goosebumps.
“…Blegh….”
Clatter…….
If it meant that Jiyoon… likes me, her own sister…. And if it meant she was jealous of Woojin, my first boyfriend. So, to reduce the time I spend with Woojin, she keeps him occupied with games until late at night, and in front of me, she’s doing “good deeds” little by little. It was… well, it was possible to explain it that way.