Chapter Index

    .

    “She’s late.”

    “Unnie.”

    “…”

    As I hung the headset around my neck and checked the time, it was already 10 p.m.

    Staring at the now double-digit number, I turned off Discord—where notification sounds occasionally chimed—and picked up my phone from under the monitor.

    Normally, she’d be home by 9, let alone 10.

    But there’s been no word from Unnie.

    Just like when she came back all giddy after hanging out with Seo Woojin a few days ago.

    …That “meeting a friend” excuse was, in my opinion, a blatant lie.

    She definitely left out one word in front of “friend.”

    Boyfriend.

    She must’ve sneaked out to see Woojin, which is why she isn’t back yet.

    And since Woojin isn’t on Discord either…

    100%.

    “Pfft…”

    Earlier, she suddenly asked me out of nowhere if I wanted to grab a beer…

    After I brushed her off, she must’ve gone to Woojin all sulky.

    Probably to say something like, “See? Jiyeon isn’t a lesbian~”

    …Or maybe.

    Like any normal couple,

    her goal was just to do something dirty.

    “…Because of Woojin, I’m the only one…, …sshi…”

    I was dying of embarrassment explaining myself to Unnie,

    and you’re out there having fun with her without even a word to me.

    You bastard. You fucking bastard. You perverted bastard. You sex-crazed bastard.

    After muttering a few curses under my breath, I finally let out a sigh.

    I don’t like that Lee Hayoon got the wrong idea, but whatever.

    She’s always been a little loose in the head anyway…

    At least she seemed to understand in the end, right?

    I just hope she doesn’t make any more ridiculous assumptions.

    Otherwise, the headache Woojin just fixed might come right back.

    “…”

    …Anyway.

    Woojin, are you having sex with Hayoon right about now?

    Or… something else?

    With zero dating experience, the only thing I can think of for couples to do is sex.

    Rustle. Leaning back in the chair in the worst possible posture for my spine, I unlock my phone.

    Since it’s come to this…

    A little revenge.

    On Woojin, who annoyed me,

    and on Hayoon, who’s too busy flirting with her boyfriend.

    …And while I’m at it,

    maybe record something too.

    “…”

    With that thought, I call Unnie. As expected, she doesn’t pick up even after 10 seconds.

    The ringing suggests her phone isn’t off, though.

    Is she ignoring it because she’s in the middle of sex?

    If it were on silent or vibrate, fine, but if the sound’s on, the mood would’ve been ruined.

    At least I disrupted them a little. After a minute, I call Woojin.

    “…?”

    But,

    Woojin’s the same.

    He doesn’t pick up.

    I hear the ringing,

    and the voicemail prompt,

    but he just won’t answer.

    “…”

    …I get it if it’s Unnie, but you should pick up.

    You know exactly why I’m calling.

    Just answer like last time.

    Pretend it’s a wrong number and leave it somewhere.

    …Hayoon,

    it’s your cue to get railed.

    Because next time, I’ll do even more than that.

    You idiot.

    “…”

    …Why.

    Aren’t you answering?

    174

    The smell of alcohol.

    I don’t particularly like it.

    “…Hic, sniff…”

    But right now…

    It’s not so bad.

    Maybe because I’m a little drunk?

    Or because it’s fruity beer?

    …Or maybe,

    because the scent lingering on my lips

    came from you.

    “…Hayoon-ah.”

    “…”

    “Your phone’s vibrating. It’s Jiyeon calling.”

    “…”

    “…Aren’t you going to answer?”

    “…”

    “…Okay.”

    “…”

    Thud. The sound of her phone being tossed onto the bedside table.

    Buzz, buzz. The persistent vibration of an incoming call.

    I almost giggle but hold it back, arms stretching toward Woojin despite pretending to sleep.

    …Kiss me more, like earlier.

    Forget about Jiyeon, kiss me more.

    She can just play games alone,

    focus on me, lying here in front of you.

    Pretending to sleep, I pull Woojin closer.

    Pretending to sleep, I meet his gaze.

    Pretending to sleep, I eagerly lick my wet lips.

    Pretending to sleep, I lift my hips to make it easier for him to undress me.

    “……. ….”

    The vibrations from the pillow eventually stop.

    Then, after a moment, another buzz.

    Woojin, who had been tearing at my clothes, reaches out,

    lets out a small sigh, and speaks.

    …Jiyeon again.

    Asking what he wants to do.

    “…Don’t answer.”

    “What if it’s urgent…?”

    “If it were, she’d have called me again… not you.”

    “…”

    “…Ignore it and keep…, …ah…”

    What I really want is

    to make sure you never see her again.

    I don’t even want you gaming together.

    But,

    I get why Jiyeon feels the way she does.

    …Like how you saved me when I was almost assaulted at my part-time job.

    Because you’re the one who fixed the headaches she suffered from for over a decade.

    Because you were the first to befriend Jiyeon, who had no friends.

    I can understand her feelings, even knowing you and I are together.

    I just

    don’t like it.

    To her, you’re still just a male friend.

    To me, you’re already my boyfriend.

    There’s a line that shouldn’t be crossed.

    …If you’re jealous, Jiyeon, you should’ve dated him first.

    Or at least not gotten caught.

    You should’ve done one or the other.

    Idiot.

    So just stay home…

    …and masturbate to old memories.

    Meanwhile, I’ll go back reeking of sex with Woojin.

    “…Why, why aren’t you taking it all off…?”

    “Leaving it hooked around your legs feels sexier.”

    “…You’re such a pervert.”

    “I am.”

    “…Honestly, calling someone a year older than you ‘little sister’ was perverted enough. …Total freak.”

    “…”

    “Where else would you find a woman as mature as me… …Ah, ah, ah…!”

    “…”

    The dolphin shorts I wore here.

    The pure-white panties, slightly damp, pretending to be innocent.

    Hooked around one knee, one thigh, as I’m taken.

    …Not quite wet enough yet for that cock to plunge deep,

    so instead,

    something shorter than his cock.

    Thinner than his cock.

    …A little longer than my fingers.

    A little thicker than my fingers.

    Woojin’s fingers.

    “…Ah, there… D-don’t scratch like that…”

    “…You like it here, don’t you?”

    “I do, but… you can’t just—ah!—scratch like that…”

    Squelch,

    squelch.

    Until the obscenely wet sounds fill the room.

    Until the moans—too shameful to pair with the word “unnie”—join them.

    I’m ruined.

    Completely.

    “I’m soaked… Soaked, so stop… please… ngh…”

    “…”

    “Stop, please… I’ll call you oppa if you stop…”

    …Shouldn’t masturbation feel better when someone else does it?

    Since they know exactly where your sensitive spots are,

    it should feel at least a little better, right?

    But while I usually use two fingers to rub my own walls,

    now, just one hooked finger is ruthlessly working me over.

    Compared to when I do it myself,

    …there’s no contest.

    My arms, wrapped around Woojin’s neck, slide down,

    gripping his tensed biceps as I—

    Squelch.

    Squelch.

    Staring at his hand, glistening with my shame.

    Please stop.

    I’m sorry.

    Begging like I’ve done something wrong.

    “Hayoon-ah.”

    “Huh? N-no, yes, yes…?”

    “…Want to put the condom on for me?”

    “…”

    Wiping his wet hand on my thigh,

    he tosses a vitamin-like wrapper at me,

    then rests his monstrous cock—the kind that makes fingers seem pathetic—on my lower stomach.

    No.

    That thing can’t go inside.

    …It’ll crush not just my cervix,

    but my insides.

    But instead of those thoughts,

    all I recall is the pleasure from seconds ago,

    and the mind-blanking ecstasy of being pounded by that cock.

    So in the end,

    with clumsy hands,

    I roll the condom on.

    “…….”

    Unsatisfied, he adjusts it himself,

    spits on it for extra slickness,

    then presses the tip against my entrance.

    …Covering my mouth, afraid the neighbors might hear.

    No, that won’t be enough—grabbing the pillow, I bury my face in it,

    desperately muffling my moans.

    “…Fucking slut.”

    “…Hah…, nngh……”

    The tip,

    halfway.

    Gripping my thighs,

    halfway.

    …B-because of the alcohol.

    Because I’m drunk.

    Trembling uncontrollably,

    I cling to Woojin’s body…

    ….

    …Doing,

    …something shameful,

    until—

    halfway.

    “…Hayoon-ah.”

    “……. …. …….”

    “Answer me. Lee Hayoon.”

    “…Y-yes…”

    Drip.

    Not just leaking embarrassing fluids,

    …but with a faint shadow on my lower stomach,

    Hic, hic—moans too girly for my usual voice muffled into the pillow,

    hips jerking uncontrollably—

    the other half.

    “…Remember what we talked about earlier?”

    “Wh-what…?”

    “…That if you came untouched, I could call you ‘little sister’ and fuck you however I want.”

    “…”

    “…Hayoon-ah.”

    “…”

    “Lee Hayoon.”

    “…”

    The sound of ragged breathing, face hidden in the pillow.

    Creak—the bedsprings shifting as Woojin adjusts his position, drowning out—

    the oblivious buzzing of the phone.

    With—

    “……. …. ……♡….”

    Thrust.

    Thrust.

    Slam.

    …Pound, pound.

    The cock I could barely take past the tip with my mouth

    is now buried to the hilt,

    his lower stomach and pelvis slamming against my thighs with every thrust.

    …Even my delayed moans

    are completely drowned out.

    “…Ah, fuck… Lee Hayoon…”

    “……, ….”

    Once. Twice. Thrice.

    The head teases my walls, gently at first.

    Once. Twice. Thrice.

    Then, without regard for my state, deeper—

    Ten. Twenty. Thirty times.

    Literally “to the hilt,” slamming into me.

    He’ll cum inside.

    After emptying everything, he’ll plug me with his tip so not a drop escapes.

    Like animals mating.

    Like a beast raping.

    Insanely.

    Messily.

    Hot.

    Violent.

    “Ngh…, nngh………. …….”

    …I bet

    Jiyeon did the same in this bed.

    With her white hair left here of all places,

    they must’ve

    had sex.

    Imagining ever-indifferent Jiyeon pinned under Woojin, I let out a stupid, smug laugh.

    I love it when Woojin buries himself deep like this, but…

    Obviously.

    She’s such a drama queen, isn’t she?

    She’d struggle to take even half.

    Probably came just from the tip brushing against her.

    “……Ngh…, …. ……ah…♡…….”

    Unlike me,

    who can take him to the deepest spot.

    Splurt.

    Splurt.

    Gush.

    If not for the condom, his cum would’ve painted my cervix.

    Only possible because I can take all of him.

    …Just because we’re sisters

    doesn’t mean our sensitive spots…

    are the same.

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