episode_0052

.

I know.

What I’m doing right now—

It’s not just smearing spit or whatever.

It has a proper name: fellatio.

“Mmm… Slurp…”

When my sister isn’t around,

I lie on her bed,

wear her dolphin shorts,

tie my hair up with her scrunchie,

pretend to be her,

and slather spit all over

her boyfriend’s cock—

that vile, monstrous thing shoved right in front of my face?

…Haha.

Pathetic.

No—

Hard-working…

fellatio.

That’s what I’m doing, right?

Perverted things.

That’s exactly what I’m doing.

“Slurp… Mmh, mmph…!”

Honestly…

Being alone with my sister’s boyfriend from the start—

I knew something was off.

That’s why I tried to keep my distance from you.

In fact, I did keep my distance until we played games together.

But then, you kept creeping into my sight.

You played games with me for the first time, listened to me despite being a newbie,

and kept holding me close because of my “treatment.”

Even if I desperately tried to think of you just as a “guy friend,”

the thought of you being my sister’s boyfriend kept stabbing at my brain relentlessly.

When I found my sister’s secret browsing history,

why did I end up clicking “Clear internet history” at that exact moment?

Why did I carefully erase things behind her back?

That embarrassing reason—it’s because you kept tempting me.

One slip-up, and I’ll cross a line there’s no coming back from.

“…….”

…Ah, not that I’ve crossed it yet.

Sex.

We haven’t done that.

At least not yet.

Still barely safe.

…Probably?

“Hahh… Hah…”

I spit out the cock I’d been sucking in my mouth and collapse onto the bed with ragged breaths.

Panting, panting—above my labored breathing,

the cock, drenched in my spit, twitches obscenely, throbbing in pleasure right in my vision.

Not my boyfriend’s cock.

Not even my older brother’s like some incest couple,

nor some random dude’s I just met.

My sister’s boyfriend’s.

The more I dwell on it, the more humiliating it becomes.

“Hah… Slurp…”

Holding the base carefully,

I lick and lavish attention on the frenulum beneath the glans.

Even deeper into shame.

Even farther

from being able to tell my sister.

Into a secret I’ll take to my grave.

“…Hey. Ji-yoon.”

“…What?”

“Looks like you’re done coating it. No?”

“…A little left. Wait.”

“Where?”

“From where you’re sitting, you can’t see… but up close, there’s still some spots.”

Where my sister’s spit should be,

my spit clings thickly, drooling down.

I swipe it up lazily with my tongue, swallowing it down over and over.

Then—I turn my head sideways,

gulp the thick glans between my lips,

slurp, slurp, sloppy, disgusting sounds—

and drown Seo Woo-jin’s cock in fresh spit pooling in my mouth.

…It’s my first time actually doing fellatio, but seems like I’m doing well.

Woo-jin’s hand has been petting my head without permission since earlier.

Do that with your girlfriend, not me.

I’m just her little sister.

“Ghh—! Kgh…! Hahhh…!”

Annoyed, I shove his cock deep down my throat, plunging it in repeatedly before pulling away—

Strings of spit cling between his glistening cock and my lips.

Not just one or two, but several.

If a picture were taken and sent to my sister right now, our sisterhood would shatter instantly.

That mental image makes my lower belly twitch.

…Ah, whatever.

I’ll just bite these strings with my tongue—

…….

…No, no.

I can just wipe them off with my fingers. Right?

Dumbly retracting my tongue, I stare at the thick cock before me while flicking away the spit threads.

“…….”

Even after all that, the base still looks bone-dry, sparking countless thoughts in my head.

If I really shoved it all the way in, I’d probably ruin my insides.

That kind of thought.

Or—

What if Woo-jin got so excited

he disregarded my protests,

and like an animal—thrust, slam—

rammed that grotesque thing all the way inside me…?

That kind of dangerous curiosity.

Stuff like that.

“…Woo-jin. Stop kneeling there, come a little closer.”

“This is enough. The base is the only dry part left.”

“Since we’re doing it, might as well finish it properly, stupid.”

“…….”

“It’s not even fellatio. Just coating it with spit…”

Gulp. Swallowing the leftover spit, I bury my face against his lower stomach and start lapping eagerly at his cock.

…My hands feel idle, so half-jokingly, I grab hold of it,

pumping it up and down with slick shlick-shlick sounds,

or rubbing the glans in circles like the sexting lines I heard in games.

Woo-jin asks—voice strained with pleasure—if I’m out of my mind.

Playing dumb,

playing innocent,

I stroke the shaft even harder, scraping it up and down.

All while sucking at the base, imprinting his masculine scent deep into my brain.

But then, I realize something.

“…….”

Mixed in with my spit on Woo-jin’s cock—

sticky pre-cum—

drips onto my sister’s pure white bedsheet, leaving dull gray stains.

“…….”

Staring for a bit, I quickly wipe the mess away with my spit-drenched hand,

then stuff his cock back into my mouth, swirling my tongue.

52

“…Why fingering if this was just spit-coating?”

“Hm.”

“Then why’d you jerk me off?”

“…To spread it evenly.”

“…….”

“Wh-what’s so funny? That’s not wrong! Did I say something stupid, idiot…”

Logically, wouldn’t touching it just transfer the spit from his cock to my palm?

Does Yoon Ji-yoon really think that’s a convincing excuse?

Or is she betting that I—too blood-drunk in my cock—would just let such a dumb excuse slide?

Too lazy to even hide my smirk, I grip her slender ankle and hoist her legs over my shoulders.

“Fine. Even if that were true… Do it like you’re fucking your sister.”

“…Would prefer if you did.” Since this is just ‘practice’ anyway.”

“I know, but… you calling me affectionately feels way too awkward.”

“…Shut up.”

Flustered, Ji-yoon covers her eyes with her wrists the moment the fellatio ends.

…Weird.

That “shut up”—

She never says it to me, only to her sister.

Yet today, it feels like I hear it every minute.

And her randomly messaging me when bored—

Am I becoming as comfortable to her as her sister?

Squeezing her soft thighs together, I thrust my spit-slick cock between them.

“I love you… Sis.”

“…….”

Like earlier—

whispering.

“Not gonna answer? That’s just cruel.”

“…You said my acting was cringe earlier.”

“You’ll improve. Keep going. Isn’t this what practice is for?”

“…….”

“I won’t tease you anymore, so just try. Or stay silent.”

“…W-wait. Need to mentally prepare…”

“…….”

“…I-I love… Woo-jin…”

“I love you. Sis.”

“M-me too… …love you.”

With Ji-yoon’s reddened ears and stuttering voice as seasoning,

thrust,

thrust,

thrust.

Lightly.

Piston my sticky cock between her snow-white thighs.

…Not going all the way,

just as much as she said.

Careful not to slip out,

gentle—

but just rough enough.

“…But didn’t you say she’s into rape play?”

“…Why…?”

“Hearing ‘I love you’ mid-act feels kinda off suddenly.”

“…It’s just roleplay.”

“And rape play done this timidly—”

“Ngh?! W-wait—”

Thrust, thrust, thrust.

Instead of sticky squelches,

the sound of Ji-yoon’s thighs clapping against my hips

now fills her sister’s bedroom.

Under my lingering gaze,

my spit-slick glans peeks out obscenely between her legs.

Her spread thighs—

twisted grotesquely under the pounding.

Flustered by sudden shakes, Ji-yoon peeks between her legs beneath her covered eyes.

I hammer into her hard.

“This feels better, right?”

“I—I dunno…! That’s not my kink…!”

“Think of me as your sister. We’re practicing, remember?”

“…….”

“For her preferences, not yours.”

“…….”

Covering her eyes, Ji-yoon pants weakly.

After a silent gulp, she squeezes her thighs and speaks.

“Th-that works… Forcing it all the way in…”

As if she has no interest in it.

As if she’s only doing this to help her friend.

“Use my thighs… … For practice.”

Even though just earlier,

she was drooling at the sight of my cock slipping out.

Such a damn liar.

…That sight alone—

pisses me off so much—it’s hot.

“Then like earlier.”

“Mmm…”

Me too.

“I love you… Ji-yoon… No, Lee Ha-yoon.”

“…….”

Purposely slipping her name,

I thrust into her spit-slicked thighs—

cock throbbing obscenely hard.

“…Answer me. It’s embarrassing alone.”

“Y-you… That name…”

“Mistake. You two are one letter apart.”

“…If you ever do that with my sister—”

“I’ll try.”

As if saying—

I want you, not her.

As if I want to stuff this cock into you—

I let her name slip.

Hugging her thighs pinned over my shoulders,

I thrust until sticky squelches fill the room.

While resisting the mounting pressure in my balls—

“Hah…”

“Nh…! Ngh…!”

Ji-yoon twitches each time our skin slaps.

Following the curves down—

her cock, fully erect, juts out almost to her navel.

Looking up further—

her half-lidded eyes peek beneath covered wrists, glued to her leaking tip.

…She must be nervous.

Pre-cum’s been dripping non-stop.

Who knows when full cum might burst?

“…….”

Not that it matters—there’s tissues right by the bed.

So it’s fine.

Holding back waves of pleasure simmering since the fellatio,

I grind my hips against her sweat-slick thighs and exhale.

“Huh?! W-wait, Woo-jin—!”

Onto Ji-yoon’s pale stomach.

Onto her rolled-up shirt.

Onto the black dolphin shorts she stole from her sister.

“—Let me cum here.”

“Y-you can’t—! No, stop, don’t cum—! The bedsheets—?!”

Throb.

Spurt.

Splat.

Splurt…

Ji-yoon’s outstretched palm catches thick ropes of cum mid-air.

Shocked by the heat—

feeling semen’s warmth for the first time—she flinches, pulling her hand back.

…With nothing left to block it,

the next violent spurts

paint streaks across her stomach.

“…….”

“…….”

From her soft underboob to her navel.

Down to her sister’s borrowed shorts.

Sticky cum lumps splatter everywhere.

Staring dumbly at her own body—

now treated as her sister’s living tissue—

Ji-yoon stays frozen until I finish.

Utterly wrecked.

Covered in cum.