Chapter Index

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    What’s the greatest luxury a man can enjoy in his life?

    Driving around in a car worth billions of won?

    Wearing a wristwatch that costs as much as a few apartments?

    Or maybe a house so extravagant that ordinary people can’t even fathom it?

    No.

    Those things don’t even require being a man in the first place.

    They’re just dreams achievable with enough money.

    Not just by throwing cash around—I’m talking about something only a man can truly enjoy.

    Once you narrow it down to gender and think about it, the answer comes surprisingly quickly.

    “…Fuck… tastes so gross… ugh… and kinda bitter… but kinda sweet too….”

    “I’ll give you a tissue, just spit it out. No need to force yourself to swallow.”

    “…No. …Ugh. If it were Unnie, she’d slurp it all up and even lick for more….”

    Taking a woman—one other men are only allowed to admire from afar—and molding her to my exact tastes.

    Making a woman who always wears a bored, indifferent expression show reactions only for me.

    Crushing her pride, utterly and completely, until she wags her tail eagerly under me.

    Is there any sensation more thrilling than this as a man?

    …Doubt it.

    Probably nothing comes close.

    “You want some water? Should rinse your mouth out.”

    “…Mouthwash. Got any?”

    “Yeah. In the bathroom.”

    “…Mind if I use it?”

    “Knock yourself out.”

    Ji-yoon, eagerly indulging in her own desires under the guise of “Unnie would love this.”

    While she wobbles off to the bathroom, I glance down at my cock, still slick with her spit.

    Probably because it had been buried in a warm place for so long before being pulled out, the cool air feels insignificant compared to…

    …Earlier, when I came deep in Ji-yoon’s mouth, I definitely felt something fucking spurt onto my cock.

    But now, there’s nothing left. Like she licked it all clean.

    Complaining about the taste while secretly scrubbing it diligently.

    Annoyingly endearing—and so unbearably hot I can hardly hold back.

    Right now, I just want to drop the whole “playing dumb and nice” act.

    Fuck Ji-yoon all night and call in sick tomorrow.

    Late in the afternoon,

    whispering into Ji-yoon’s ear as she whines, “What if Unnie finds out?”,

    pounding into her until “I love you” is seared into her brain—

    I want to spend the whole day fucking.

    But doing that would risk losing Ha-yoon.

    Fantasies are just fantasies.

    I chug the cold water straight from the fridge and suppress the urge.

    Ha-yoon.

    Ji-yoon.

    One—a promising hero who shouldn’t even have existed in my original memories.

    The other—a hero who reaches unimaginable heights in my original timeline.

    …And they’re sisters.

    Where else would I find women like this?

    So no reckless gambles. Maintaining this balance is the smarter move.

    Ji-yoon enthusiastically sucking my dick under the pretext of “for Unnie” is cute, after all.

    Watching her is the only way to endure this.

    “…Hey.”

    “Oh, done already?”

    “…Seo Woo-jin, what kind of old-man mouthwash did you buy? …Tastes awful.”

    “What’s with the critique? Out of nowhere.”

    “There are so many fresh ones… this one just— hwaaa— burns and….”

    “…I’ll buy a fresh one next time. Lime-flavored.”

    “…Promise?”

    “Yeah. Sure.”

    Is she planning to come over next time and suck me off again?

    I tuck away the fleeting thought and walk over to her.

    She looks a little ridiculous right now, partly because she just tugged her panties down with her teeth.

    But I have no intention of letting her pull them back up, not when my cock is pressing against the fabric.

    Ji-yoon keeps sneaking glances when she thinks I won’t notice.

    Every time my cock twitches, her shoulders tremble just slightly.

    So fucking hot.

    …From where I’m standing, fixated on her face, I can’t miss a single reaction.

    Seeing her try to act composed when she doesn’t realize I’ve noticed is driving me insane.

    “Then, wanna practice something else now?”

    “…Something… else?”

    “…Teasing. Didn’t you say practicing at least once would be good?”

    “Ah. Yeah.”

    Ji-yoon’s breath carries a faint minty scent every time she speaks.

    I idly stroke her hair before gripping one of her wrists tightly.

    Paler than expected.

    Slimmer than expected.

    Colder than expected.

    And this texture—so impossibly soft.

    …I really wanna rub my cock against her.

    Laden with filthy thoughts, I guide her to the bed

    and carefully pull Ji-yoon, who’s still frozen stiff, toward me.

    “…Come up a little higher. Don’t just sit there on the edge.”

    Onto my thighs,

    where she can straddle me comfortably.

    “…If I go higher… that… it’ll touch me.”

    “What will?”

    “…Your dick, idiot. How do you not get that?”

    “You just had it in your mouth, and now you’re shy about it touching your belly?”

    “I-It’s not shyness…! It’s gross because of the spit….”

    “…”

    “…Never mind. If it were Ha-yoon, that pervert would grind against it happily….”

    “Smirk.”

    I flash a smile, like I’m dealing with a naive kid, and wrap an arm around Ji-yoon’s waist.

    My facial muscles are straining, but it’s worth it—

    judging from her usual reactions, she likes this kind of thing.

    “…Ah, seriously… now your spit’s all over me….”

    “…Want me to put on a condom if it’s that gross?”

    “…It’s already all over me….”

    …Eventually,

    even as the tip of my cock presses firmly against her navel,

    she squeezes

    closer,

    closer,

    close enough that I can hear every gulp of spit she swallows,

    maintaining that same bored expression while

    staring

    straight at me.

    …Definitely affected.

    “…Anyway, what now?”

    “Practice. Like you said—teasing practice.”

    “That’s not what I meant…! I meant what are you gonna do in this position?”

    “…Light kisses on your collarbone and chest? Or just groping your ass like this?”

    “…Even hearing that makes my skin crawl.”

    “Isn’t it teasing? What else is there?”

    “Haah… forget it. Should’ve known better than to expect anything from an amateur virgin….”

    Did she never watch porn?

    Just how much do I have to hand-feed her?

    Like Unnie would be satisfied with that.

    Ji-yoon, mumbling complaints under her breath, wriggles away slightly.

    As she hesitantly turns her back to wipe her spit-smeared lower belly, I take in every inch of her.

    …Snow-white bob-cut hair cascading over her shoulders.

    The redness of her ears, now completely visible.

    The lingering dampness in her slightly messy hair from earlier torment.

    Delicate shoulder blades that, despite just existing, make my cock twitch.

    A waistline that begs to be gripped tightly with both hands for no reason.

    And, despite supposedly doing nothing but gaming all day—

    a flawlessly plump ass that makes me want to pin her against the wall and pound into her.

    Staring at it all, my cock jerks—just as Ji-yoon glances back and slowly bends her knees.

    Even as my fully erect cock prods against her back,

    she ignores it

    and

    pushes

    deeper

    into my lap, as if to say,

    “I don’t care. I don’t care.”

    “How is this any different from before?”

    “Direction, dumbass. …So just… practice already.”

    “…”

    “…Ugh, you’re hopeless….”

    Ji-yoon keeps fidgeting, her ass twitching every time my cock brushes against her.

    When I whisper straight into her ear, the hand that had been resting on her thigh shifts toward me.

    She fumbles awkwardly along the bed, so I subtly stretch out my hand to guide her—

    and the moment her fingers wrap around mine,

    she drags them down,

    past her thighs,

    to somewhere far damper than expected.

    “…Why so wet already?”

    “D-Don’t say it! Why would you even—!?”

    “I haven’t even touched you yet.”

    “U-Unnie would be this wet…! I matched her…!”

    When she was sucking my cock earlier, her elbow kept jerking sporadically—was she touching herself then?

    A plausible assumption. I exhale lightly and slowly guide her own fingers downward.

    Since this is just teasing practice, I’ll only torment her entrance slightly at first.

    If either of us reaches our limit…

    I’ll shove my fingers deep inside, scrape along her walls,

    and naturally escalate into sex practice.

    That’s how it’ll go.

    “…”

    …But then,

    a hilarious idea pops into my head.

    I act on it immediately.

    “…Your fingers are totally perverted.”

    “What do you want me to do about it?”

    “The second I give you an opening, you start groping… nghh….”

    “…”

    “…”

    “…”

    “…H-Hey.”

    “…”

    “…Aren’t you gonna… touch my chest?”

    “Later.”

    “…Oh. Okay.”

    “…”

    Is she trying to cover up the fact that she just screamed in embarrassment five seconds ago?

    Her slightly sulky voice makes me throb, and I spit a few strands of sticky precum onto her back.

    Her thighs slacken just enough for my fingers to slip in easily

    and instantly confirm just how soaked she is.

    But I don’t stop there.

    …Right as my fingertips graze something slick and swollen,

    I force two fingers apart, spreading her tight entrance wide.

    Her complaints about “bad technique” or whatever are drowned out as I press against her—

    slowly, deliberately savoring the soft, dripping heat.

    “…Don’t touch so roughly….”

    “…”

    “If it’s teasing… make it… lighter….”

    I tap lightly against her urethra with my middle finger.

    Just as she starts trembling, I slide further down,

    past her peehole,

    directly onto the entrance where my cock belongs.

    “…Nh… ah, there….”

    …Tight.

    I knew she was tight last time, but this is different—almost too narrow.

    So if I forced my cock in here,

    pounding ruthlessly inside,

    it’d feel so good it’d make my brain go numb.

    And also—

    because of that—

    “…Ngh… hnn….”

    …I’ll settle for just pressing firmly against her entrance for now.

    Teasing practice.

    Y’know, thinking about it, this is only poison for you.

    Me? I’ve got plenty of others to call.

    Ha-yoon’s around.

    There’s Yozora,

    or Han Su-a.

    But you?

    “…Ah, sleepy….”

    “…”

    “Ngh… hyuk….”

    If I sent you home like this without fucking you—who would you go to instead?

    “…Hff… Hh….”

    CZ?

    No way you’d go to him after seeing how wrecked you look now.

    So that leaves… no men for you, right?

    Ah, fingers?

    After staring straight at my cock this whole time—

    fingers?

    …Seriously?

    “…Woo-jin, Seo Woo-jin….”

    “Mm.”

    “Are… are you doing this right…?”

    “…”

    “You should… touch my nipples too… and… my clit… or… ngh….”

    I wrap an arm around her waist,

    and inside that impossibly snug hole,

    I slide one thick finger in—

    but

    only enough to frustrate her.

    “…Nn…? Ah…?”

    Not enough to actually satisfy.

    “…Hey.”

    “What now.”

    “…Just… deeper… please….”

    “Why?”

    “…I’m so… frustrated….”

    “Obviously—because it’s teasing practice.”

    “…”

    “Teasing means you shouldn’t feel satisfied. You should crave more.”

    “…”

    “…The more you crave now, the better it’ll feel later.”

    Besides, I already know exactly how Ji-yoon masturbates—where her sweet spots are.

    I deliberately avoid them, scraping along every other inch of her walls.

    “…Nhh… ngh… ah….”

    “…”

    “…There… just a bit more… ah….”

    “…”

    “Hih… ah, please… just… touch….”

    “…”

    “Tch….”

    “Don’t move your hand. It’s teasing practice. …If you get yourself off, what’s the point?”

    “Then my nipples… ngh…?”

    “No.”

    “…Ah, fuck… you bastard….”

    …Not that it bothers me.

    If anything, it’s kinda satisfying.

    But just unsatisfying enough

    to drive her insane with desperation.

    “Seo… Woo-jin… just end this… Unnie wouldn’t… like this….”

    “Weren’t you the one yelling about how loud she is when she fingers herself?”

    “That was… with fingers buried deep inside….”

    “No way fingers go deeper than my dick.”

    “Unnie probably likes it… shallow… ngh… shallow….”

    “When we fuck, she keeps lifting her hips—like she wants it deep.”

    “…Unnie too….”

    “Unnie too?”

    “Ah, nothing. …Shut up.”

    “…”

    I get what she’s implying,

    but I play dumb—keeping my lips pressed to her shoulder as I continue.

    No, not “continue.”

    This isn’t foreplay anymore.

    It’s torture.

    Trapping her in pleasure that’s almost enough but never quite there.

    Still, kinda hot watching her drip endlessly, nipples stiff—but denied climax.

    …Anyway,

    probably time to bring it up.

    If I torment her any longer, she might freeze to death.

    Better to end things while moderation’s still possible.

    “Ji-yoon.”

    “What… you bastard….”

    “Bastard? You’re the one who suggested ‘teasing practice.’”

    “So what…?! Why call me now—!”

    “A wish. I’ll stop if you grant me one wish.”

    “…Wish?”

    “Yeah. Nothing too big.”

    “Stop talking nonsense and just say it… hurry… hurry… ah?!?”

    Press. Press.

    Finally brushing against her sweet spot while

    holding her trembling hips firmly in place—

    I whisper.

    “Haa-yoon noona. She hated the idea of you helping, right?”

    “……. …. …….”

    “Ji-yoon?”

    “…Y-Yeah… she did… ………hihk….”

    “…I couldn’t say it honestly in front of her, but I don’t mind. No—I like it.”

    “…”

    “If you help, sex with noona would feel even better, right?”

    “…”

    “So, yeah… can you convince her?”

    “…”

    Pressing firmly against Ji-yoon’s sensitive spots—

    rubbing her walls until my fingerprints are etched into her—

    while she’s reduced to ragged breaths,

    my palm soaked in her slick arousal,

    I continue.

    “…Tell her you’ll make sex with her boyfriend even more pleasurable.”

    “…”

    “…Ji-yoon. Answer.”

    “…”

    “Was that a nod just now?”

    “…”

    Drip. Drip.

    Saliva trickling down her chest,

    I watch the faint bob of her head and smirk.

    “Yeah. Gotta make the movements bigger so I can see.”

    “…”

    Her nod is weak, unsteady—

    too busy squeezing her thighs desperately to focus.

    “Then, since you granted my wish….”

    “……?! …, ……?!?”

    “…Hey. You’ll dirty the bed.”

    “……. …….”

    With her back pressed tightly against me,

    the sheets beneath us,

    the blanket trapped under her ass,

    and the transparent arousal dripping onto the floor—

    I murmur.

    “…H

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