Chapter Index

    .

    Once before, I found myself thinking this:

    Am I secretly cheating on Baek Jiho right now?

    If I were to list all the ill-fated encounters I’ve had with Seo Woojin, there’d be no end to it. But in the beginning, wasn’t it just me pitying Hayun, who knew nothing, and meddling here and there?

    Then everything changed drastically after I saw Seo Woojin naked at the pension late at night.

    I couldn’t stop comparing him to Baek Jiho in my head… and it all ended with me running into him at an adult shop.

    Back then, I still thought of him as nothing more than a trashy playboy.

    Even when he forced a relationship with me through what was practically blackmail, the most I felt was that I’d been violated.

    The thought that I was cheating with this trash never crossed my mind.

    But as time passed, my body gradually grew accustomed to Seo Woojin.

    By the time I started feeling like I’d been… tamed, for lack of a better word—

    “…Are you really not going to film?”

    “Well, it’s not like we haven’t done this before, right?”

    “…?! Wait, where are you putting your hand—!”

    This time, it was me who used that ridiculous term—sex partner—to roughly package our already-crossed-the-line relationship.

    I told myself it was just about satisfying sexual urges with Seo Woojin,

    that there was no love involved, so it definitely wasn’t cheating.

    I even masturbated to the thought.

    “You’re already pretty wet. And all we’ve done so far is kiss and some foreplay, right?”

    “And yet you’re touching me however you want, then backing out like a coward….”

    “Ah, I did play with your nipples.”

    “Y-yeah. So of course I’d be a little wet….”

    “And just that alone got you this wet?”

    “…….”

    This time,

    for real.

    …Am I cheating?

    Or not?

    “That’s not the only thing…! The kissing and fore…play, ngh, why are you suddenly pulling back…? You were fine saying it earlier….”

    “Foreplay is you servicing me to make me feel good. Kissing… well, yeah. Even though it’s with me, you must’ve liked it, huh?”

    “That’s… ngh, wait….”

    “You’re always saying I piss you off.”

    “Hah, ngh…?!”

    Was he being more blunt than usual because he was turned on by the idea of having sex behind Baek Jiho’s back?

    Sitting meekly at the edge of the bed in front of him, I gripped his stiffened arms with both hands, trying to stop him.

    Of course, that did nothing to halt the fingers pressing insistently into my soaked entrance.

    If anything, my half-hearted resistance only stoked his already-overheated lust.

    Because of that, every spot I usually touched when pleasuring myself—

    and even the unexpectedly sensitive spots deeper inside that I hadn’t known about—

    were pressed over and over by Seo Woojin’s long fingers.

    No wonder my shoulders and thighs were already trembling.

    And it was only natural that I, who had been looking up at Seo Woojin’s face just moments ago, was now panting against his arm.

    “…You sound obscenely filthy.”

    “Ngh…, ………. …, …….”

    “Ah, are you trying to hold back your moans? Sorry, but I was talking about this sound. Your pussy.”

    “…Ah, shit… Hah…, wait, just… Ngh, kuh….”

    “I get that you’re embarrassed because I hit the right spot, but could you stop digging your nails into my arm?”

    “Hah…, hng…! It’s not because I’m embarrassed…! …Damn it….”

    But staying still while he did this would just invite weird assumptions.

    …Still, I wanted to at least stop the squelching sounds that had been going on for a while now.

    Grabbing his arm—which showed no sign of stopping, probably because he found my reactions amusing—I managed to stammer out,

    “Are you really… really not going to film…?”

    “Nope. Your phone’s right here, isn’t it? Besides, you never answered me earlier.”

    “I didn’t answer because… I was thinking… Then what about the promise you made with him… ngh….”

    “Promise… Oh, the one about filming something misleading?”

    “Yeah… That….”

    “Honestly, I think not filming anything at all is the most misleading thing you could do. Don’t you agree?”

    “W-what kind of….”

    …Wait, instead of dismissing it as ridiculous—

    why did it kind of make sense when I thought about it?

    While I was lost in thought, Seo Woojin climbed onto the bed, pressing his fingers deeper inside me.

    Then, as if wrapping himself around me, he settled behind me.

    Just moments ago, he’d been lazily sitting on the edge of the bed, fucking me, but now he seemed intent on embracing me from behind.

    My mind was already hazy from pleasure, but I tried to think through it.

    It wasn’t working.

    Especially since my body had been starved for days.

    So of course, to Seo Woojin—who knew my body inside out—

    it was like this.

    “Then you want to film this?”

    “…Filming would… avoid complications later….”

    “Your childhood friend seeing you getting pleasured by another man, dripping like a bitch in heat.”

    “…….”

    “Or later, a video of us fucking raw, sticky and messy without a condom?”

    “…….”

    Held tightly against him.

    My already-soaked pussy was being fucked, squelch squelch,

    until it was a complete mess.

    I had no choice but to listen.

    “And if I were you, Seol Dabin, I’d have been deeply disappointed in my childhood friend by now.”

    “Disappointed…? Why would I…?”

    “How long are you going to keep filming and handing over videos? Even though you’re supposedly dating.”

    “We’re not, okay…? It’s not like I’m just filming and handing them over… Hng….”

    “Yeah, you are.”

    “…….”

    I denied it, but I had been thinking that.

    That Baek Jiho and I had a weird relationship.

    It was obvious if you compared me to Hayun, who I’d often seen with him.

    Hayun always got flustered talking about her boyfriend.

    But me, who’d been with Baek Jiho for years? I just sounded bored.

    Not that things were any better when we’d just started dating.

    “You two aren’t dating. You’re just keeping each other around because you don’t want to let go.”

    “…….”

    Even back then,

    he was just.

    The boy next door.

    That was all.

    “I could help you sort things out. Want me to?”

    “I’ll take… ngh… the thought….”

    “Yeah? Too bad.”

    “Telling a perfectly fine couple to break up… what kind of….”

    “Pfft. You don’t look perfectly fine to me.”

    The boy next door, who was a little dense, so I ended up worrying about everything for him.

    The boy next door, who’d probably be a mess if I didn’t take care of him.

    The boy next door, who had no sense at all, so even after years, he still couldn’t remember what food I liked.

    …And recently, the boy next door who’d revealed he had some disgusting kinks.

    If we hadn’t grown up next to each other—if we’d just met at the academy—

    we’d have been strangers passing by without a second glance.

    “Well, for now…”

    “…W-wait. Why are you lifting me all of a sudden…?”

    “Just felt like it. Maybe because I’ve been holding you from behind this whole time, but I want to see your face while we fuck.”

    “…….”

    One by one, I thought about my childhood friend of twenty years.

    Then I met the eyes of Seo Woojin, who I’d only known for a little over half a year.

    Even if we hadn’t met at the academy—

    no matter where we’d met—

    he’d have schemed every which way to fuck me.

    …This irredeemable pervert.

    “Last time, I fucked you however I wanted. This time, you control it.”

    “…….”

    Last time must’ve meant our first night at the motel.

    Remembering how good it felt—so good I could’ve dripped straight from my womb—I bit my lower lip and lifted my hips.

    “Don’t do it half-heartedly. You’ll feel better if you lean into me a little more.”

    “…Give me a second. It’s been so long since I’ve done this myself, of course I’m awkward….”

    …I think this is called cowgirl?

    I’ve never done it, but I can kind of guess how it works.

    Like this. Sitting astride Seo Woojin’s thighs.

    The glans already glistening with transparent pre-cum—

    I guide it in—

    “Hah… ngh…!”

    myself.

    “Now lower your hips.”

    “…….”

    “…Yeah. Like that.”

    “…….”

    As he said, I only took the tip in before pulling back,

    giving myself time to adjust.

    …To put it bluntly, like waking a girl from deep sleep for questioning.

    If it were Seo Woojin fucking me all the way like usual, he’d have teased me mercilessly.

    Shallow.

    Slow.

    Weak.

    “Just teasing the tip is already too much?”

    “…Ah, shut… up… Later, when you cum outside… I’ll do better….”

    But Seo Woojin didn’t scold me.

    At most, he just threw out these kinds of teasing questions.

    I’d worried that the pleasure might be too faint, that he’d go soft—

    but his cock stayed painfully hard, waiting for me.

    …Even though he wasn’t my boyfriend, just a sex partner at best.

    “Hah, ngh…! …Ah, no…!”

    …Does that pervert really like me that much?

    No matter how much I think about it, I don’t see how I’m better than Hayun or Seoyeon.

    That time he called me cute…

    Or when he randomly compliments me, saying I’m pretty…

    Is it just that my looks are his type?

    Lost in these thoughts, my thighs trembled uncontrollably.

    “Why don’t you wrap your arms around my neck? Holding onto my shoulders like that just makes your posture awkward.”

    “…….”

    That’s just a roundabout way of telling me to hug you.

    The words rolled on my tongue before I swallowed them down with a gulp.

    Even though his intentions were obvious, I couldn’t snap at him.

    …Honestly, I’m 70% responsible for things escalating to this point.

    If I hadn’t used Baek Jiho’s request as an excuse from the start—

    If I hadn’t doubted my relationship with Baek Jiho—

    If I hadn’t been curious about Seoyeon’s no-condom sex stories—

    If I hadn’t enjoyed raw sex so much—

    I wouldn’t be.

    “…….”

    “Yeah. Now slowly…”

    Ignoring the promised recording.

    In a place my childhood friend couldn’t see.

    Following Seo Woojin’s words,

    wrapping my arms tightly around his neck.

    Doing something as couple-like as this.

    Even having raw sex.

    None of it.

    “…Go deeper. More.”

    “…H-how much… is left…?”

    “A lot.”

    “…Fuck, seriously….”

    My thighs—no, my entire lower body trembling as I tried to take his cock deeper.

    “…No. I can’t. I can’t do this….”

    “Hah… Then relax for a second, okay?”

    “…….”

    His large hands gripping my hips tightly.

    Forcing me.

    Down.

    “Seol Dabin. Don’t bow your head. Look at me like before.”

    “…….”

    …Chocolate, coffee.

    Forget the scents from earlier.

    Only mint remained.

    Doing things I’d never do with my childhood friend.

    Kissing for pleasure.

    “……, …. ……. …Hah…”

    Taking his cock all the way in, pressing deep below my navel.

    “Didn’t you just say not to tell a perfectly fine couple to break up?”

    “…….”

    “…Do you like cheating sex?”

    …Wanting to feel even better, I lifted my hips without his help,

    grinding down against his thighs.

    I didn’t answer Seo Woojin’s question.

    Just kept repeating the same motions.

    Because this—

    this never should’ve happened.

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