Chapter Index

    …Sex.

    We did it.

    With Seo Woojin—the very person I had resolved never to intertwine bodies with again.

    “…”

    And of all places, in the room where I was supposed to sleep.

    …Leaving behind the heavy scent of lust, losing all sense of time, breathlessly.

    “…”

    Sometimes, pinned on my side, the cum that had pooled deep inside me dripped messily down my buttocks and thighs.

    Sometimes, my legs were forced apart, unable to close, as I was pressed into the bed with relentless thrusts.

    Sometimes, I couldn’t even bend my knees, left sprawled low with my face buried in the pillow as I was taken for what felt like forever.

    Sometimes, I obediently straddled him as he instructed, wriggling my hips as best as I could.

    And sometimes, we left the bed entirely, marking every corner of the place I lived— …the scent of a male in heat, and a female in heat, left thick in the air.

    …Even in the shower, where I had gone to wash up, with my hands braced against the wet tiles—

    Thud. Thud.

    Maybe because it was the bathroom, but the lewd sounds echoed even louder than in the bedroom, dulling my eardrums as we kept going—

    Until the sweat from sex outnumbered the water droplets clinging to my skin.

    Until I completely forgot why I had even come here to wash up, my neck gripped tightly by the teacher’s excited arms—

    …And in that state, Master, Master, I panted submissively, and we kept going for what felt like forever.

    And then, this was what I got in return.

    “…”

    The housekeeper, who returned late at night, avoiding my gaze like she’d seen something she shouldn’t have.

    Me, equally unable to meet the housekeeper’s eyes.

    The housekeeper cautiously asking if he was my boyfriend.

    …Since I couldn’t exactly say sex partner, I awkwardly begged her to keep it a secret from my father.

    The housekeeper, even more carefully, asking if I planned to bring him over every day.

    Me, dodging the question with a vague I’m not sure yet.

    The housekeeper offering to prepare more bedding and snacks.

    Me, unable to say anything, just nodding stiffly.

    The damp sheets replaced with fresh, fluffy ones.

    The lingering scent of sex, stubborn even after airing out the room for ages.

    Crawling under the covers to sleep, only for the memories from earlier to keep resurfacing.

    And finally—

    “…Ughhh….”

    The shame that only hit me right before falling asleep.

    “Why… why did I even say that…?!”

    The sound of me kicking the thick blankets in frustration echoed through the bedroom late at night.

    …Huh?

    “I want to stop being sex partners…?”

    You wrapped it up as just masturbation and had sex within 30 minutes, and now you want to quit? What kind of joke is that?

    The no kissing, no sex rule was the same.

    If you’re going to set rules, you should at least follow them yourself. Instead, you just got swept up in the teacher’s pace.

    And then—

    Master…

    Master?

    Who the hell actually says that in real life?

    No matter how turned on you were, that’s just ridiculous.

    That’s the kind of thing you only hear in porn or dirty comics.

    What kind of idiot blurts that out in front of the teacher?

    What must Seo Woojin think of me now?

    He probably sees me as an even bigger pervert than Yozora.

    Last I checked, Yozora only had his contact saved as Master in her phone—she never actually called him that to his face…

    Ugh…

    “Haa… haa….”

    I-I mean, sure, it did make the sex feel better…!

    And now that I’ve done it once, it’ll be easier to admit other kinks later…!

    But still, I’m so embarrassed I can’t sleep.

    Not to mention, that excuse—”You enjoyed my body more than Yozora’s, didn’t you?”—when I think about it now…

    “…”

    Yozora.

    Yozora…

    Mid-struggle with the blankets, I mutter the name I’d completely forgotten during sex and peek my head out.

    No matter how it happened, in the end, things went the way Yozora wanted—she did sleep with the teacher…

    But now, a new problem has emerged.

    “…”

    The teacher enjoys my body—just a sex partner, slightly closer than a friend—

    more than his actual girlfriend, Yozora.

    What if this drives a wedge between them?

    What if rumors start spreading behind my back?

    Instead of making friends to help the group’s image, what if I’m labeled as the slut who stole her friend’s boyfriend?

    What if I just end up causing trouble for Father…?

    What do I do…?

    ### 165

    …I’m not entirely sure, but lately, the atmosphere has definitely shifted…

    “What are you staring at?”

    “…Your face.”

    “Ugh… creepy…”

    “What do you mean ‘creepy’? You’re like the sky to me.”

    “‘Like the sky’ my ass… What am I supposed to say when you’re just watching me eat? Of course it’s creepy.”

    “…I wasn’t staring.”

    “By my standards, you were. …And you’re not even a lesbian.”

    It’s not just her tone.

    Around middle school, I think?

    When she was little, she used to follow me around like she couldn’t live without me, calling me unnie all the time.

    But then puberty hit, and for some reason, she became a bit more blunt.

    Not that it’s any different from usual.

    “You’re not eating the last rolled egg?”

    “You have it… …Unnie, you eat it.”

    “I’ll split it—you take the bigger half.”

    “No. I’m full anyway.”

    “Ugh… Just take it. Come on.”

    “…”

    “You always just eat ramen, so at least have some eggs, okay?”

    “…”

    It’s not her appearance either.

    Her snow-white bob cut, chopped off at shoulder-length because “styling is annoying,” remains unchanged.

    Even though I buy her makeup and beg her to dress up nicely, she just slaps on lotion and calls it a day.

    Her cold, expressionless face—easy to misunderstand for strangers—is the same as ever.

    The coat over her uniform… …has been replaced with one Woojin bought her, but—

    Either way, nothing’s really different.

    “…”

    Except,

    there is something that’s changed, unrelated to the atmosphere.

    “Why have you been waking up so early lately?”

    “…Can’t I wake up early?”

    “No, it’s not that you can’t, just… Ugh…”

    “…”

    In high school, she used to sleep in so much she’d skip breakfast, but now she crawls out of her room right when I’m eating.

    Not just on time, either—she wakes up early enough to shower and finish everything while I’m preparing breakfast.

    Is that related to the atmosphere?

    If I think about it… Well…

    It has changed.

    Anyway,

    if I had to describe the shift in Jiyoon’s vibe—

    “In high school, you’d sleep in until I had to drag you out of bed, but now you wake up on your own.”

    “…I cut back on gaming. I’m an adult now.”

    “…I see. Now that you mention it, I haven’t heard you talking late at night as much lately.”

    “…”

    “I used to wake up sometimes because of it…”

    “…You could hear me? All the way from my room to yours? Even with the door closed?”

    “Not clearly, but if I pressed my ear to the wall near the bed, I could hear faint mumbling?”

    “…”

    Lately, it’s been…

    Almost like Jiyoon is paying more attention to me?

    No, no—attention sounds weird, doesn’t it?

    I can’t think of a better word, so attention will have to do…

    Either way, Jiyoon’s suspicious behavior isn’t limited to just one or two things.

    A few days ago, she suddenly said my tastes were perverted, that Woojin must be pitiful for having to cater to them, and that she should watch us next time—what was that about?

    Then there’s the dolphin-print pants she used to mock (“What’s pretty about this? Don’t say it suits me—you wear it instead!”) before shoving them deep into the closet—only to start wearing them out of nowhere.

    Doing laundry—

    Underwear laundry—

    Learning how to use the washing machine for the first time in 20 years.

    And that one time I came home to find her slipping out of my room, saying “I cleaned up a bit,” only to scold me for making a mess.

    Add to that the unnecessary questions about my room, like just now…

    It’s all suspicious.

    Has she always been this interested in me?

    Even that short conversation earlier—the Jiyoon I know would’ve just shut it down with a “So what?”

    Weird…

    Why has she been acting like this lately…?

    “I’ll clean this up—you go brush your teeth first.”

    “…No. I’ll do it today—you go ahead.”

    “You’ll do what? …The dishes?”

    “…Yeah. What, you don’t trust me?”

    “Of course I don’t, dummy. You’ve never done dishes before. …Wait, have you? A couple times?”

    “I did it a few days ago. It’s just scrubbing with a soapy sponge and rinsing, right?”

    “…Well, yeah, 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 gonna look at me like that, I won’t do it.”

    “O-Okay, I leave it to you…?”

    “…”

    What’s this?

    She’s offering to do the dishes?

    Jiyoon is?

    …Huh.

    Did she do something bad to me?

    I stare at the rubber gloves (so out of place with Jiyoon’s usual image) before slipping into the bathroom to avoid another scolding.

    As I start brushing my teeth, I try piecing together the sudden realization.

    …But.

    “Mmm…”

    —Scrub scrub scrub…

    At first, I thought it was a brilliant idea, but the more I think about it, the less sense it makes.

    Jiyoon’s always acted like she’s the older sister, so her mistakes are usually more blatant.

    It’s not like she’d be this cautious just because she messed up the laundry.

    And when I try to think of any major wrongdoing, our daily lives are exactly the same as always—nothing stands out.

    She’s been working part-time at a café over winter break, so it’s not like she’s desperate for allowance money either.

    What is it?

    —Scrub scrub…

    Then, as I brush my teeth in front of the mirror,

    another ridiculous thought pops into my head, freezing my hand mid-motion.

    Jiyoon, who used to adore me when she was little.

    Jiyoon, who grew colder after puberty.

    Jiyoon, who started changing after I began dating Woojin.

    When I asked, “Want to come clothes shopping with Woojin and me?” she agreed without complaint—even though she must’ve hated the idea.

    Jiyoon, who spends all her free time gaming with Woojin.

    Jiyoon, who’s started waiting for me when I come home.

    Jiyoon, who wakes up early to eat breakfast with me.

    If I apply one possible scenario to all of this,

    it fits way too neatly.

    “…Blegh…”

    —Clink.

    If Jiyoon…

    has feelings for me—her own sister—

    and is jealous of Woojin, my first boyfriend,

    then she’s been monopolizing his time at night to keep us apart,

    while slowly,

    acting sweeter around me…

    It would explain everything.

    A little too well.

    0 Comments

    Heads up! Your comment will be invisible to other guests and subscribers (except for replies), including you after a grace period.
    Note
    // Script to navigate with arrow keys