I Kissed My Girlfriend's Little Sister

A few days have passed since I got a younger sister who looked exactly like my girlfriend.

Shigure quickly mixed into our class with her outstanding communicative skills. It was obvious that she had an excellent way of getting along with people.

At every recess, she was never alone and always surrounded.

Surprisingly, she doesn’t make herself the center of the group, and chooses an extremely neutral position, not buying into either too much favoritism or animosity among her friend circle, according to Tomoye.

Precisely analyze their strength and control your surroundings.

It must be Shigure’s “way of life”. 

She’s very good at it.

Our relationship as siblings has been going well.

I have my ways to deal with Shigure, who is the twin sister of my girlfriend. That’s because I’m prepared to accept Shigure, or rather, we made a contract.

Now, the shyness has almost disappeared when I interact with her.

I had never actually talked to girls properly before dating Haruka.

I realized that humans inevitably adapt when they are driven by their needs.

However, I’m still not used to living with a girl.

It’s even more troublesome because she looks exactly like my girlfriend.

I know that I shouldn’t think like this, but sometimes I see her as Haruka.

That’s why I keep telling her to stop fooling around, but she won’t listen to me, saying “I can do whatever I like, you know?” 

She just won’t listen. I would like to take back the words which I had given by accident. 

It’s no use… she does as she pleases.

I curse my carelessness.

It’s a curse, but whenever I see Shigure’s cheerful face, I can’t help but endure her mischief. I believe I’m a good kind brother. 

Absolutely.

This was the first week since Shigure came.

That weekend, we went to the electronic shop and bought a new microwave oven that Shigure insisted on using even though we already had a regular microwave oven.

After consulting for home delivery, we went to the supermarket to buy a large number of groceries.

We came back home in the evening. 

“H-E-A-V-Y! Onii-san, you are a demon for making your fragile little sister carry such a big load? Please help me out a bit!”

“I’ve got water, fish, meat, and rice. And you want to give me some more vegetables?”

“Or at least a pumpkin.”

“Please don’t give me the heaviest thing you’ve got. My hands are already full because of your four bottle Cokes from the sale.”

“Huff— Huff—”

I walk up the stairs of my apartment while ignoring her weak cries.

The rotten steel stairs creaked more than usual.

We climbed one step at a time.

Please don’t break…

The two of us arrived home after a scary climb.

“We’re back.”

“I’m back… uff, finally… tired.”

Before I knew it, after I came back home, I started to say, ‘I’m back.’

[TN: Tadaima]

It wasn’t like that when I was living on my own. But rather there was no one there.

As I recalled those useless old memories, I left Shigure and went inside the kitchen to unload the massive amount of supplies.

“Let’s see… I will start with the vegetables and put them in the fridge.”

“No, no, no, wait a minute, Onii-san, what are you trying to do?”

Shigure, who had collapsed in the doorway, jumped up and ran over to me in a hurry.

“What do you mean? I was going to put the things I bought in the fridge…”

“Wash your hands first when you get home! Even a five-year-old knows that!”

“huh? Sheesh… Don’t worry about minor details!”

“…Oh! Really?”

Eh? She just murmured… it’s getting scary.

Did she just make that sound?

“So, respectfully, Onii-san didn’t you touch your dick today, not even once?”

[TN: チンポジ]

“Dick?! You’re saying such words again.”

“Onii-san. We’re having a serious conversation. So tell me.”

“Nope, I didn’t.”

She raises an eyebrow… She’s putting a lot of pressure on me.

Then, she says in a serious tone with a serious expression…

“Really? Didn’t you do it unknowingly? It’s still the end of May and it was quite hot today. On such a day, Onii-san is wearing Denim. Don’t you feel stuffy? 

I think, the moment you felt uncomfortable and I wasn’t looking, maybe then you fixed it… Can you say that didn’t happen?”

“Ugh, that’s…”

I don’t know.

As far as I can remember, I didn’t do it. But maybe I might have fixed it unconsciously.

To every man, it’s like breathing.

(EN: The males, don’t kill me, and the females, Pls ignore it)

“If you had fixed it once, I won’t let you touch the kitchen or the refrigerator with those filthy hands. You’re doing a great form of bioterrorism. As the guardian of the kitchen, I will protect it. 

I’ll ask again. Onii-san, I want the truth, swear to the ‘Goddess of Heaven and Earth’*, in the name of your grandfather and to your eyeballs, swear that today you didn’t reposition your dick.”

”Okay! All right, all right, all right! I’ll go and wash my hands first!”

What are you going to do with my eyeballs anyway?

I stood in the sink to get away from her pressure and washed my hands in the water.

“Just do that honestly from the beginning. Wash it right down to the nails, okay?”

“Are you my mom?”

[TN: Okan (オカン) means “mother” in the Kinki dialect, and is mainly used by sons(puberty) for their own mothers.]

“Did you just feel my maternal love?”

[TN: バブみ (Babumi) is used to express maternal feeling]

“I wonder who’s the real kid?”

“Eii—”

As I was lathering up the hand soap, she pushed me with her ass.

“Gimme some space. It’s too small.”

“Yeah, yeah.”

This house doesn’t even have a changing room, so we don’t have the luxury of a washbasin.

The sink is where I wash my hands and brush my teeth.

I shift to the side and Shigure settles into an empty space.

She exposed her hands to the water and pushed the hand soap bottle.

But then Shigure tilts his head, “Huh?”

Then she pushed the bottle multiple times.

But only a tiny amount of soap fell into her hands.

“There’s nothing.”

“Yes, I think we’re out of soap. Did you have a refill?”

“Hey, you know, I refilled it the other day.

There’s none left.”

“Gununu(*outrage*), what an oversight in dealings with you.”

“I’m tired of hearing that from the kitchen guardian.”

“Mmm. Well, I can’t be helped. Hey, Onii-san, I’m going to borrow this from you.”

“Eh? What are you going to borrow~ow?”

A strange voice slipped from my throat in surprise.

I don’t have any choice.

Even though she’s my sister, when a girl suddenly takes your hand, it’s natural to be surprised.

“What are you doing?”

“What do you mean? You have the last remaining soap in your hand, so we’ll just wash it together like this.”

“It’s dirty…”

“It’s not dirty. I’ll sterilize it right now. Are you embarrassed that I grabbed your hand? You mustn’t do that, Onii-san. You have a wonderful girlfriend, my Nee~san.”

Shigure smirked with a mean face.

I am getting bullied. Yet again.

By looking at her face I can see that she’s getting excited. She’s enjoying seeing me embarrassed.

Don’t underestimate me…

“I told you the other day. Don’t look down on me. It doesn’t matter how much you tease me.”

“Oh, really? Then I’ll do as I like ♥️”

“…!”

Her slippery white hand brushes my hand.

That stimulation sends shivers down my spine, it’s okay I can endure this.

It’s nothing compared to the thrill of that time when I held Haruka’s hand.

“Hee~ You’re pretty much okay with it, right?”

“You’ve underestimated me. A man with a girlfriend won’t be upset by this level of body touch. This kind of hand-to-hand play, we did it a week ago!”

“That’s very recent. …It’s a bit of a shame, though. I thought I’d be able to see a little bit more of your weaknesses.”

Heh, I win.

I don’t want to lose every time.

I have to win once in a while.

“But now that I look at it this way, Onii-san, I can see that you’re a man too, aren’t you?”

“What do you mean?”

“Your Hand. Hand. It’s easier to see when I put it side by side. It’s much larger and thicker than my hands. See.”

“Well, that’s obvious.”

“Eii~”

“HYA—”

Her momentary quick action caught me off guard.

Shigure was sliding her fingers into mine in such a motion that tightly grasps the five fingers. My fingers, slick with soap, tickled when she put a force on it.

Due to this extreme simulation… I suddenly moaned.

“Aha. What is it, Onii-san? Such an innocent and lewd scream, It’s cute and… kind of erotic.”

“~~~~!”

My pathetic reaction pleased Shigure.

Her fingers entwine around my hand like a snake.

Each time that happens, *Slip*. *Slurp*. *Guchuu*. Sounds were made.

The sticky sound echoes in the silence and the scenery turns red at sunset.

“You’re losing your cool, aren’t you? Huh, if you learn to do something this good, won’t this feeling come back every time you hold hands with Nee~san? You are a bad boyfriend, aren’t you? Thinking about her twin sister while holding hands with the girl you love so much.”

“Un…”

This is getting bad…

We are only washing our hands, but It feels like I’m doing something erotic!

She’s forcing this kind of feeling into my sub-consciousness. Would I really remember Shigure every time I hold hands with Haruka? No, I won’t.

If I tell her to stop, I’m afraid a strange voice will leak out again.

If that happens, she would laugh at me.

Shit, why is she okay with it?

Even Shigure is barehanded. I’m sure we’re under the same stimulus.

… No, she can’t be fine.

There shouldn’t be that much difference in the sensitivity of human skin.

And the hands are not exceptional.

It’s my fault for being too passive.

Time to counter-attack.

I’m going to be offensive.

I will distort that pathetic smile.

I squeezed Shigure’s hand back with such enthusiasm.

“Ah—”

Now! Let me show me your pathetic face…!

I looked at Shigure’s face.

My heart skipped a beat.

“~~~~is… that enough!”

“Hey, hey, Onii-san! I haven’t washed your nails yet!”

“I’ll wash them myself! Go away! You’ve got enough foam, right?”
“Ahhhh, wipe those bubbles off.”

“I’ll wipe it down later!”

I rush to the bathroom next to the kitchen to escape.

No, it’s not like that.

I escaped.

Because of the look on Shigure’s face…

It was exactly like Haruka’s happy face when she was with me.

…My heart is beating so loudly.

My body is heating up like it’s on fire.

That moment I saw Shigure and Haruka as one.

How could this happen… They got mixed up again, even though I had completely separated them in my mind.

And once that happens, I’ll never be able to face myself. I had such a feeling.

Haruka’s eyes as she gazed at me, moist and warm, spending time with me.

Shigure’s earlier expression was exactly the same.

Could it be that…

A ridiculously self-conscious fantasy floats in my mind.

But at the same time, as I reach for the bathroom faucet to remove the foam from my hands, the bar soap enters my vision… Huh, that’s…

“Hey. I was just thinking, why didn’t you just use the soap in the bathroom?”

“Oh, it was here. I completely forgot. I’m sorry.”

“……”

Shigure apologized half-heartedly.

She’s making her usual evil face.

This girl definitely knew.

Oh, for goodness sake!

I almost fell into her scheme.

That’s the point.

No,

In the first place, there’s no way this little devil can become pure like Haruka.

Because Haruka’s expression is… it’s because she’s the one who loves me.

Maybe, what I saw just now was a delusion due to sunset.

I’m sure it is.