Chapter 28
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Translator: penny
Chapter: 28
Chapter Title: Caught by Sis! But It's OK If She Gives Permission! (Part 1)
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Carefully opening the door and slipping inside, I spotted the teacher leaning back against Sis's bed, fiddling with his phone.
The first time I'd seen the teacher's naked body, it was way more stimulating than I'd imagined.
His compact, well-defined muscles were impressive enough, but what really stood out—what was far bigger than I'd pictured—was his cock, fully exposed and uncovered.
I'd never seen it bare before, but damn, it was huge.
'Veins everywhere... Seriously...? That's what's about to go inside me now?'
I snapped my dazed mind back into focus, recalling everything I'd overheard so far, and mimicked Sis's moves.
'This is... so embarrassing... ♥'
I crawled onto the bed like a cat, pressing my lips to the teacher's cock.
"...Mwah ♥"
I sacrificed my precious first kiss—the one I'd guarded so carefully—on the teacher's cock.
'Smells... kinda naughty...'
A faint trace of Sis's sweet scent mixed with the teacher's slightly musky aroma, creating this weird, intoxicating fragrance.
'Kinda... nice, actually... ♥' As I inhaled the teacher's scent filling my nostrils, I felt his cock swelling in my mouth.
The glans pressing against the soft inside of my cheek, its length that could reach my throat, the pulsing veins against my lips...
I etched every detail into my mind, lavishing it with tender, affectionate kisses as I serviced him devotedly.
Even the pressure filling my throat sent shivers of illicit pleasure through me.
Prone like a cat, wearing Sis's face, servicing Daddy.
"Feels good... Teacher...? No, Jin...hyuk?"
I quickly corrected my slip amid the ecstasy, but the teacher eyed me with a subtle, knowing look.
"Why are you staring like that?"
Had he figured something out?
When I asked, he gave an awkward smile.
"Mm, you calling me 'Teacher'—it almost feels like Yujin's the one sucking me off."
His casual words, delivered with a grin, sent an unexpected jolt of pleasure through me.
'What would Sis say in this moment...?'
"You can't do that to me, Jinhyuk... ♥ *Mwah* Yujin... ♥ I wanna... fuck her senseless...?"
Stumbling through my imitation, I asked, and he rubbed his cock against my tongue in response.
Like a brush painting strokes, his slick glans teased my tongue mercilessly.
"Fuck yeah, I wanna pound her brains out... Those tits of hers are insane."
His sweet little bit of sexual harassment made my heart race, but I channeled Sis, reciting lines she might say.
"No... Yujin's still a student—you can't fuck her..."
A fleeting worry crossed my mind—was it okay to say stuff like this?—but my arousal drowned out reason.
"Yujin sees you as her dad, Jinhyuk... You can't get horny for your daughter... ♥"
"Getting hard like this for your little girl... makes you a bad daddy... ♥"
I shook the shaft with my hand, kissing along its length as I spoke.
Like nursing a bottle, I treated it with utmost care, suckling gently.
I was satisfying my unfulfilled oral fixation—not on a nipple, but on this cock.
"...So, let me take care of that big, aching thing for you... ♥"
I flopped onto the bed, presenting my ass to the teacher and wiggling it teasingly.
If he saw my face, he'd spot the blush and know I wasn't Sis.
"Right now, pretend I'm Yujin and fuck me senseless... ♥"
Still prone, I spread my cheeks with both hands. My gown was bunched up around my waist, fully exposing my dripping, begging pussy.
"Treat me like Yujin—use me rough, work out all that twisted lust, Jinhyuk... No, Daddy... ♥"
"Fuck Yujin's pussy... ♥ Pound it... ♥"
I swayed my hips seductively, and the teacher—no, Daddy—grabbed my ass like he couldn't hold back anymore, grinding his shaft against it.
"...Naughty girl. You want Daddy's cock that bad?"
"...Yesss... Yujin wants... ♥ to lose her virginity on Daddy's cock... ♥"
"...Even if your first time's incestuous sex with Daddy's cock— that's okay with Yujin?"
"Please... ♥"
Face buried in the bed, I thrust my ass out like I was begging for his cock and pleaded.
His thick glans teased between my slit and clit, tormenting me.
"Get addicted to sex with a monster like this, and you might end up Daddy's exclusive fucktoy. That cool?"
Even as a first-timer, I could tell that thing was freakishly huge.
Get used to it—to being forcibly stretched by something that massive...
I'd never go back. I'd be ruined for anyone but Daddy.
And that was...
The best thing ever... ♥
"...Yeah, I'll be that... ♥ Daddy's exclusive onahole... ♥ I promise... ♥"
Every immoral word—miles away from societal norms—sent dizzying waves of pleasure twitching through my body.
"Haaaahhh... ♥" The moment I declared myself his onahole, Daddy thrust forward, claiming my virginity.
'What the— I can't even... breathe...'
The sheer size filling me completely short-circuited my brain for a second.
'Sis takes something like this every day...?'
Thinking of her stirred ugly jealousy and filthy excitement in my chest.
'I can do better than Sis... ♥'
I barely managed to circulate my mana, clenching around Daddy's cock.
Every muscle in my pussy wriggled like a living tongue, delivering waves of pleasure to him.
"How's it feel... Daddy? ♥ Yujin's virgin pussy... tasty...? ♥"
In response, he sucked on my nape, leaving marks on my pale skin.
Like claiming ownership, kiss marks bloomed red and angry around my neck.
"Whoa, impressive. Feels different today somehow."
I figured this would have him panting in ecstasy like I was, but he seemed annoyingly composed.
'Well, duh—most of those midnight moans were Sis's...'
As I adjusted to his massive cock, pleasure started building bit by bit.
Each slow drag of his shaft scraping my insides turned my mind white.
"Feels good?"
"Yesss... ♥ Daddy's cock... ♥ feels so good... ♥"
"Yujin's such a slutty daughter," he said, stroking my hair. I fed him lines to please him.
"Yujin... ♥ It's her first time, but Daddy's cock already feels amazing... ♥"
'If Sis feels this good... ♥ why does she complain it's tough...?'
Yeah, this was definitely the right call—easing her burden.
'As long as neither of them finds out, it's not really cheating... ♥'
"Alright, then—let's do this for real."
"Huh? Daddy, wait— Hnngh ♥"
Daddy flipped me over and started pounding me missionary-style.
Unlike before, he angled his thrusts differently, picking up the pace.
'What is this... ♥ So weird... ♥'
He hit spots I didn't even know craved it. Like my body had pleasure buttons inside, and every jab left me helplessly drowning in bliss.
And this accelerating rhythm—I couldn't get used to it at all.
'Ahh.. ♥ Ah... ♥ A... ♥'
I couldn't string thoughts together. It felt like blacking out every few seconds. The earlier pleasure was child's play; now I was just swept away by mounting waves of arousal.
I wanted him to slow down, but there was nothing I could do. Pinned by his grip on my hips, I was just a pleasure hole for him to use.
"Hic... ♥ What... ♥ is this... ♥ No... ♥ Teacher... ♥"
Even as I squirmed to escape, it only made my hips buck to please him more.
"Please... ♥ Hn... ♥ I... ♥ I'm gonna... ♥ lose it... ♥ Haa... ♥ Just... ♥ a sec... ♥"
I barely finished the sentence, but Daddy shoved his index finger in my mouth like he didn't want to hear it, prying it open.
"Huaa... ♥ Aa... ♥ Gah... ♥ Stooop... ♥"
Each thrust drew reflexive moans I couldn't control, and I worried it'd wake Sis.
Wearing Sis's face, role-playing a "beg Daddy to fuck Yujin" scenario with her boyfriend...
If she caught me... ♥
It'd be so immoral, so trashy... ♥
So why does it turn me on this much... ♥
"Pleash... ♥ Gonna... ♥ cum... ♥ Pleash... ♥ Shhtop... ♥"
Daddy grabbed my pillow and pressed it over my face like he wanted me silent.
My ragged breaths filled it up, recycling back into my lungs.
The choking sensation, like being strangled, made me thrash.
"Hnggik... ♥ Really... ♥ Gonna... ♥ die... ♥"
My head spun dizzily, insane pleasure surging from my core, mixing into a haze where I couldn't tell danger from delight.
Through the pillow, I faintly heard Daddy mutter he was cumming inside, and my mind blanked.
'Daddy... inside me... ♥'
He pinned my hips and slammed deep, his cockhead kissing my cervix as hot spurts flooded me.
"Hnggguk ♥ Nooo... ♥ Head... ♥ melting... ♥"
All the pent-up pleasure crashed at once, like a dam bursting at my peak.
My first true orgasm left me collapsed, squirting pathetic streams from my pussy like a cheap toy.
"Heek... ♥ Good... ♥ Daddy... ♥ Love you... ♥"
...Giving my first time to Daddy, creampied, and cumming from it... ♥
"Daddy's the best... ♥"
Finally emerging from blissful afterglow, I lifted the pillow slowly.
"Hmmm, did Daddy's cock feel good?" Sis beamed at me.
"Yeah... felt amazing... Si...sis?"
Why.
Was Sis here?
The shock hit like a hammer; I couldn't keep my composure.
And my transformation...
"Huuut..."
My concentration broke, and the mana-forced disguise melted away, reverting to my true form.
Face-down on the bed, back to myself.
"Si... Sis? Let me explain everything...?"
"You were so loud, you woke me up," Sis said with a grin.
"Wanna chat with Sis for a sec?"
My vision went black.