episode_0136

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8.5 / 10

If I had to give him a score, he’d easily deserve that much.

But that doesn’t mean he’s without flaws.

“You don’t really need to practice that kind of thing.”

“…Fingers… Just take your fingers out first…”

One.

He’s clueless.

A normal person would’ve at least vaguely figured out why I’m doing this by now,

but that idiot still thinks this is just practice.

For fuck’s sake, use that thing on top of your neck and think for a second.

What kind of angelic little sister in this world would practice sex for her unnie? Does that even make sense?

…I’m just doing this because I want to cheat on you behind unnie’s back.

The whole “practice” thing is just a flimsy excuse.

You moron.

“Hey, fuck, don’t wipe it on my thigh…! There’s a towel right there!”

“It’s gonna get dirty with sweat soon anyway, so who cares?”

“That’s obviously gross—… …Eek…?!”

“Stop squirming and stay still. You’ll fall.”

“W-wait, are you saying we should just go to the bed like this…?”

“Yeah.”

Two.

When I first met him, I thought he was just a nice guy…

But outside of normal situations, he’s a complete horn-dog.

Thinking back, he’s been like this since the first time we “practiced.”

Calling unnie while she was working at the convenience store and saying shit like, “Let’s have sex,”

then when she refused, calling some guy he played games with yesterday and saying, “Let’s have sex,” instead.

He’s got some lowkey perverted tastes, huh? Almost as much as me…?

If even the slightest sound leaked through the mic, he’d get caught immediately—so why the hell does he do that?

What, does he just want to see me struggling to keep quiet?

Or does he want to watch me finally give up and moan into the mic, gasping as I come?

…Ugh.

Fucking pervert.

Disgusting. Blegh.

“P-put me down…! I can walk on my own!”

“…You were squirming like crazy earlier. You sure?”

“It’s right in front of us, what’s so hard about—… Ugh…”

“…Fine, I’ll put you down. But we’re going to the bed.”

But,

since he’s a guy I gave a solid 8.5,

he’s got a few redeeming qualities that make up for those flaws.

“…Hey. Seo Woojin.”

“What.”

“…Y’know, that thing… teasing?”

“Yeah.”

“…We should probably practice that at least once…”

“…Really?”

“I told you. Just pounding like an animal from start to finish is fucking boring.”

“You heard unnie’s moans when I called her yesterday, didn’t—”

“I did. I heard them.”

“…Oh.”

“…You. You don’t know what kind of sounds unnie makes when she masturbates in her room, do you?”

“…”

One.

He’s clueless.

“She closes the door tight, but you can hear it all the way in the living room. …Way louder than what you heard over the phone?”

“…”

“So what do you think that means? It means she got more pleasure from fingering herself than from that rough sex with you. Got it?”

“…Ugh.”

So clueless it’s almost stupid.

Of course, I’ve never actually heard unnie masturbate.

Unless she’s insane, she wouldn’t jerk off loud enough to be heard in the living room while I’m home, right?

So anyone could tell I just made that up on the spot, but.

Seo Woojin.

“…Yeah. Sure.”

Is so clueless.

That he’s ridiculously easy to manipulate.

…Teasing isn’t something only guys can do, you know?

Girls can tease guys like this too.

And if Seo Woojin gets teased enough,

by the time we start real sex practice…

…he’ll wreck me.

Thud, thud,

Groan…

…

…Hehe.

“Oh, right, uh… …Stay here for a sec.”

“Why. Again.”

“Just stay still for a second…!”

“…Tch. …Annoying.”

“…”

“…”

“…Hey.”

“…”

And Seo Woojin’s second redeeming quality.

“…Don’t. It’s dirty.”

“…It’s fine. I just washed, so it’s not… And I’m playing unnie’s role, remember?”

“…”

“Lee Hayoon would love this kind of thing. Right? …She’d probably like it even more if you forced her.”

“…”

“Then of course we should practice this too. Whether it’s Hayoon’s lower lips or upper lips… If you wanna fuck her like an animal.”

Turns out,

he’s really horny.

“…Pfft. Look how hard you got… I’m not your girlfriend, I’m your girlfriend’s little sister. Hehe…”

“…”

“Ah, no. Hmm~ …What would unnie say in this situation…?”

“…”

“…She wouldn’t say anything. She’d just get wet the second she saw it and start sucking like crazy.”

As I kneel obediently and nuzzle my face against Woojin’s underwear,

his cock twitches instantly.

As I start pressing light kisses against the bulge,

his hand naturally finds its way to my head.

…And then,

without even asking,

he grips my hair and pulls me closer.

So horny.

“…Hey, you’re weirdly good with your hands…”

“…”

“Don’t tell me you did this to unnie yesterday too? Like… forcing her head down to suck you off.”

“Not forced. …A little.”

“…You two are such a perverted couple. First-time sex and you’re already into that kind of play…”

“…”

“Anyway, good job. Hayoon would love that.”

“…Yeah. She did.”

“Unnie would love stuff like collars too, y’know? Like getting fucked from behind while a guy yanks her leash… Or… Oh! Getting choked while getting pounded is also—”

“I’ll keep that in mind. So Jiyoon-ah… …uh…”

“……Ahh. Yeah.”

“…”

“I get it, so stop pulling the back of my head. Idiot.”

“…”

“Fucking pervert… Hmph…”

My momentary excitement at spilling all of unnie’s kinks fades.

Kneeling with my hands braced against the floor, I sniff at the scent of unnie’s boyfriend’s cock through his underwear, my eyes half-lidded.

…Ah, fuck. Seriously.

I shouldn’t be into this.

But at least Woojin will think I’m just pretending to like it.

After all, the one kneeling here is Lee Hayoon, not me, right?

I’m just the angelic little sister supporting their relationship.

Mmm.

“…Hff…”

I bite down on the dampened fabric of his underwear and tug it down with my lips.

It’s a little tough because what’s hidden underneath is so damn big…

But if I use my teeth, I can manage.

The waistband catches on the head, stubbornly refusing to slide down. I clamp my teeth on the edge and yank it forcefully.

…And then,

“…”

Exactly like the last thing left in my memory.

…No, maybe even bigger than that.

A throbbing, veiny cock.

Balls swollen with cum.

Twitching right above my face.

Dripping with pre-cum,

reeking of lust.

“…”

“…”

I should probably say something, but the words won’t come.

Something cheerful, like unnie would say—

“Wow, look how hard you are. Pfft. You that desperate to get your dick sucked? Pervert.”

…Or something clinical—

“I’ll stay still, so pretend I’m unnie and force me to suck you off. If I feel like puking, I’ll tap your thigh.”

It’s not like I don’t have ideas.

But somehow,

I feel… overwhelmed.

By just this one cock.

“…Bleh…”

“…”

I give up on words.

Instead, I stick my tongue out in a way even an idiot would understand, right in front of the head.

Ah. No.

For a cock this big, I’d need to open wider—

…Wait.

Hey,

what if he just shoves it in—

“…Ghk, mmph… ……Hff…”

The pre-cum smeared all over the head smears onto my tongue.

Then it coats the roof of my mouth,

and as if that wasn’t enough,

Thud, thud,

it rams into the tight entrance of my throat,

marking me with his scent.

Like I’m his property.

My mouth fills with the smell of Seo Woojin.

“Mmph… Gk, hk… …Mph… Hff…”

I want to suck him off properly, to make him feel good… but… no way.

Maybe I could carefully lick the tip like in those porn comics,

but right now, all I can do is stay still and take it.

All I manage is drooling spit down my chin, dirtying the floor.

My hands rest on Woojin’s knees as I’m used like a toy.

…Not even fully sheathed—

not even halfway in—

Gag. Gag.

I retch pathetically.

Becoming unnie’s replacement toy.

Well,

compared to unnie, I am the newer model.

Woojin must prefer this over something worn out.

Hehehe…

“Slrp, hff… …Mmmph……”

Ah. So when my throat gets pounded like this, tears come out whether I like it or not.

Blinking through my blurred vision, I glare up at Woojin, who’s looking down at me.

I heard this somewhere before.

Guys love it when a girl looks up at them with attitude during a blowjob.

Especially with reddened eyes, tear-streaked cheeks, and a “I’ll kill you.” kind of stare.

I mean, it’s a guy’s kink, but as a girl, I kinda get it.

…That feeling of conquest.

Western porn’s all about that.

So predictable.

“…”

Maybe my guess was right.

As Woojin, busy gripping the back of my head, meets my gaze, he smirks—just barely.

The smile I usually see is just sweet and kind.

…But the one he’s wearing now?

Anyone could tell he’s itching to wreck me.

That smile makes my thighs twitch like an idiot,

and I start licking the base of his cock with the same tongue that was just drooling everywhere.

Guess I’m getting used to it.

I mean, in porn, they shove it all the way down their throats.

It’d be weird if I didn’t get used to it.

“Slrp, hk… Hah… …W-why’d you pull out? All of a sudden…”

“…Thought you couldn’t breathe. Giving you a break.”

“Then I’ll tap your thigh, so stop worrying and just fuck my mouth. …Pussy.”

“…”

“Hayoon’s a masochist who likes it rough, you know… …Mmph, gk……”

The dry cock from earlier is now slick with my spit, a milky ring forming around the middle.

I grip the base tightly, …licking the swollen tip, desperate to cum,

when my ragged breaths are cut off—

…as the thick, unrelenting cock rams back into my mouth.

“Hff, slrp…… …Bleh… Mmmph……”

I can’t breathe.

Every time the head pounds against my throat, I gag.

Tears keep spilling down my cheeks embarrassingly.

But I don’t even move my hands from Woojin’s knees, afraid he’ll misunderstand.

…Instead, I shove my fingers into my own dripping cunt,

making a sticky mess on the floor.

My heart pounds so hard my ears ring.

Unlike unnie, I’m not into pain.

But this situation—

cheating on unnie with her boyfriend under the guise of “practice”—

“… …… …Mmph. ……Hff…”

—taking her place while she’s out having fun with friends,

having her boyfriend’s cock shoved down my throat,

gulping down his cum—

is exactly

my kind of thing.