My Clingy Yandere Stepsister Turned Out to Be My Ex’s Twin Sister [Dropped] - Chapter 05: My Stepsister Is Seriously Trying to Seduce Me

Chapter 05: My Stepsister Is Seriously Trying to Seduce Me

That day, my stepsister, Yuzuki, transferred into my class.

And now—

It was after school.

I had just finished club activities and was heading home.

“…Haa.”

I felt exhausted.

Practice had completely drained me today.

Alpico Academy was a powerhouse in sports.

I was part of the basketball team, and our training was no joke.

After winning the Inter-High Championship during the summer, our third-years had graduated.

This was our first practice under the new team structure—

And it had been brutal.

“Ugh… I really don’t feel like making dinner right now.”

Dragging my aching body, I finally arrived home.

“Haah…”

“Onii-san~♡ Welcome home~♡”

Waiting at the entrance was—

Not my class’s so-called angel.

“Oh… Yuzuki, huh.”

Right. After Dad remarried, I ended up with a stepsister.

Yuzuki Iida.

My sister.

And—Mishiro’s twin.

Yuzuki was wearing an apron.

She greeted me with a beaming smile.

A smile that looked just like Mishiro’s.

…A dull ache throbbed in my chest.

“Yeah, I’m back.”

“You’re late.”

“Practice ran long. My bad. You haven’t eaten yet, right? Should I order some pizza?”

But Yuzuki shook her head.

“There’s no need for that! I already made dinner for you, Onii-san!”

“Oh, for real?”

“Yup~♡ Now, come inside! Oh, and if you have any dirty laundry, just hand it over~♡”

“Ah, thanks. I appreciate it.”

I pulled out a bag of sweaty clothes from my sports bag.

“♡”

Yuzuki’s eyes glazed over as she stared at it.

“…What’s wrong?”

“Ah! N-Nothing! I’ll get dinner ready right away, so go ahead and take a bath first!”

“O-Oh… thanks.”

I headed toward the bathroom, only to find that the bath was already filled.

When I dipped my hand in—

The temperature was perfect.

…Weird. How did it end up at the exact right temperature at the perfect time?

Maybe she just reheated the water or something.

“Onii-san~ I left your change of clothes here~!”

“Ah… got it.”

Without thinking too much about it, I sank into the warm bath.

By the time I got out and headed into the living room, Yuzuki was standing in the kitchen.

She had tied an apron over her mini-skirt and a tight-cut shirt.

“Dinner will be ready soon~♡”

“…”

For a brief moment, my brain glitched.

Because for a split second—

It felt like Mishiro was the one standing there.

They were identical twins, after all.

Of course they would look the same.

“Mishiro…”

The girl who used to be my girlfriend.

Turns out, she couldn’t handle physical contact with men.

She really should’ve told me that sooner.

Like, seriously—why did she even date me in the first place…?

“Ahh, dammit… this is bad.”

It had only been a few days since we broke up.

I wasn’t ready to move on.

And then there was Yuzuki.

Why did she have to look exactly like Mishiro?

Why did she have the same face, the same voice—and yet, treat me so kindly?

“Onii-san~ It’s ready~♡”

When I looked at the dining table, a feast was waiting for me.

Hamburg steak curry.

A massive plate of rice, smothered in thick, rich curry sauce.

The hamburg steak was perfectly shaped—

And topped with a soft-boiled egg.

“…gulp.“

I swallowed, hard.

“I-Itadakimasu.”

“Go ahead~♡ Enjoy~♡”

I pressed my spoon into the hamburg steak—

And immediately, thick, melty cheese oozed out, blending into the curry.

I scooped up a bite—curry, cheese, and hamburg together—

And took a bite.

“!?”

…It was delicious.

The deep spices of the curry—

The creamy richness of the cheese—

The juicy sweetness of the beef hamburg steak—

It all blended together perfectly.

Before I knew it—

I was devouring the plate, bite after bite.

And just as I paused to catch my breath—

“Here you go~♡”

Yuzuki handed me a glass of ice-cold water.

I took it and drank it all in one go.

The chill spread through my body, washing away the lingering heat from the curry.

“Damn… that was good.”

“I’m glad you liked it~♡”

But seriously.

The meal she made was ten, no—twenty times better than anything I’d ever cooked.

It wasn’t even close.

And before I even noticed—

The empty plate in front of me had vanished.

“Huh?”

“Ah, Onii-san, just sit tight~♡ I’ll take care of the dishes~”

Every time I tried to do something, she was already a step ahead, handling it for me.

It was… too easy.

No—wait, that’s not the point.

“No, I feel kinda bad letting you do everything.”

“Don’t worry about it~! I actually enjoy doing this♡”

If she wanted to do it, then I guess I could just let her…?

But at the same time—

She wasn’t a maid or anything.

She was my stepsister.

And yet—

I let myself get swept up in the convenience of it all.

By the time Yuzuki finished the dishes, she had already cut up some watermelon.

“For dessert~♡ Let’s eat together~♡”

“Ah… thanks.”

We sat down at the living room table.

But then—

“Uh… why are you sitting right next to me?”

Yuzuki had pressed herself up against my side.

Like we were glued together.

“This way, I can feed you easier~♡ Here, say ahhh~♡”

She speared a piece of watermelon with a fork and held it up to my mouth.

And for a moment—

Mishiro’s face overlapped with hers.

“No, seriously. Cut it out with that.”

I rejected Yuzuki.

For just a moment, her expression stiffened.

But then—she quickly smiled again.

“Ryota-kun~♡ Come on, say ahhh~♡”

“Wha—?!”

She called me Ryota. Not Onii-san.

For a split second—

I completely mistook her for Mishiro.

And in that moment of shock, Yuzuki took advantage of the opening—

And shoved the watermelon into my mouth.

“How is it?”

“A-Ah…”

I chewed—

But I couldn’t taste anything.

“Hey… why did you just call me Ryota?”

“Oh? No reason~♡ Which do you prefer? Onii-san or Ryota-kun?”

No reason?

Was she serious? 

She smiled sweetly—

Like an angel. Like Mishiro.

“…”

From last year up until this summer—I loved Mishiro.

Even though she dumped me, I couldn’t just move on in a few days.

But—she did dump me.

I had to let her go.

“…Just call me Onii-san, like always.”

I didn’t want to hear that face call me Ryota.

Because it would just bring everything back.

“Understood~♡ …Ryota-kun~♡”

“!? H-Hey—!”

Yuzuki leaned into me, her body pressing against my side.

She pinched another piece of watermelon—

And shoved it straight into my mouth.

“Ngh—!”

Yuzuki slowly raised her fingers—

The same fingers coated in my saliva—

And seductively placed them in her mouth.

“Slurp…♡”

Her eyes glazed over as she licked and sucked on them—

As if she were tasting something sacred.

“Mmm♡… slurp♡… mmh♡… slurp…♡… nnh… hah♡… So good~♡”

She made a show of it—

Her tongue twirling, her lips sucking, as if she were—

No. NO.

That was Mishiro’s face.

I shouldn’t be thinking this—

“T-The hell was that?!”

“Just cleaning my fingers, that’s all~♡”

“Use a damn tissue for that!”

It was too much.

Too real.

For a second, it almost felt like Mishiro was—

NO.

What the hell was I thinking?!

“I figured you might need the tissues later, Ryota-kun~♡”

Her movements were like a snake—slithering, coiling.

Her fingers slid down my thigh, moving dangerously close to—

“Ahhn~♡ It’s so big~♡”

“YOU IDIOT!”

I jumped back.

Shit—she almost touched it!

She was actually about to grab it!

“Oh, come on~ It was just a joke♡ It’s just some good old sibling skinship♡”

Yuzuki tilted her head cutely—

Smiling like a crescent moon, her tongue flicking out in a slow, teasing motion.

“Or maybe… did this remind you of something someone else did to you~?”

…This girl.

Was she doing this on purpose?

Calling me Ryota-kun, just like Mishiro—

Touching me like that—

Was she deliberately trying to mess with me?

No—maybe I was overthinking it.

Why would she even do something like that?

“A-Anyway! Stop calling me Ryota-kun! And no more ‘skinship’!”

“I’ll do my best~♡”

“…You’ve got a terrible personality, don’t you?”

Yuzuki tilted her head with a playful Oh my~ expression.

“You’re only realizing that now, Ryota-kun~?♡”

★

After Ryota said he was going to bed, he left for his room.

Meanwhile Yuzuki headed to the laundry room.

Before turning on the washing machine—

She pulled out the bag of clothes she had taken from Ryota earlier.

She reached inside—

And pulled out his sweaty sports shirt.

“hahh♡ hahh♡ hahh♡ hahh♡”

Her breathing turned hot and ragged, like a panting dog in heat.

Burying her face into his shirt—

She inhaled deeply.

“Mmphh♡ Mmphh♡ Mmghh♡ Nhh♡ Haah♡ Haah♡”

As she filled her lungs with her beloved Onii-san’s scent,

Her hand slowly wandered downward.

Squelch…♡ Squelch…♡

The wet sounds grew louder—

Becoming even lewder and filthier.

“Mmmgh~!”

Her body tensed, legs trembling—

And then she collapsed onto the floor.

“Onii-san…♡ So amazing…♡ Your sweat…♡ Smells so good…♡”

Yuzuki bit down on her brother’s shirt, muffling her own voice as her hands wandered lower.

Lying on her back, she took in the scent of her beloved Onii-san while touching herself.

“Mmm♡ Hahh♡ Mhm♡ Ahh♡ Nhh~♡”

She imagined him.

Ryota pinning her down, forcing himself on her without mercy.

The thought alone sent shivers down her spine.

“Ahh♡ Ahh♡ Ahhn♡ Aaaahhnn~♡”

A pleasure so intense it nearly broke her mind.

“Ahhhn… Onii-san… you’re amazing…♡”

For an entire hour, she continued pleasuring herself, lost in a world of desire.

Eventually—

She tossed his shirt into the washing machine and turned it on.

“…………”

Her teeth clenched.

Ryota was as wonderful as ever today—

But his attitude was unacceptable.

He was still seeing Mishiro in her.

Even now—

His heart was still caught in her grasp.

“Fufu~ Well… that’s fine. I’ll just use it to my advantage.”

If he wasn’t seeing her as a woman yet—

Then she would make him.

If Mishiro’s shadow was still lingering in his mind—

Then she would turn it into her weapon.

Yuzuki thanked the gods.

For giving her the same face, the same voice, the same body as the woman he once loved.

Surpassing the boundaries of siblings would be difficult.

But—

She wasn’t just his sister.

She was Mishiro’s twin.

With the same voice, the same face, the same body.

She would erode his morals, drown him in pleasure—

Until he couldn’t live without her.

Only then would she rip Mishiro from his heart.

“I’ll teach you everything, Onii-san~♡ I’ll show you just how amazing it feels to completely ruin a girl’s body~♡”