Before I Knew It, Things Had Gone Too Far While I Was Playing Around With My Big Sister - Chapter 19-20

Chapter 19: I Want Big Sister to Give Up

While chatting casually with my big sister and refusing to hold her hand as we walked, we quickly reached the place where we had to part ways.

“I’m heading out, big sister.”

“Okay, be careful.”

“…Yeah, you too, big sister.”

Saying that to my big sister, I headed to school.

“Good morning!”

As usual, I said that as I entered the classroom, greeted a few people, and sat at my desk.

Then, sitting at my desk, I greeted Natsuki too.

“Mm… good morning.”

As expected, Natsuki replied sleepily.

…It’s almost like this is her default now, and I’d be more worried if Natsuki didn’t reply sleepily.

“Well, Miha, I’m gonna sleep like usual, so wake me up if I don’t get up.”

“Yeah, yeah.”

When I replied casually, Natsuki didn’t seem to care and plopped face-down on her desk.

I figured she’d probably wake up once class started, but just in case, I glanced at Natsuki when the bell rang, and sure enough, she was awake.

Then, classes and homeroom ended.

“Natsuki, what’s the plan for today?”

“…I’m going today.”

Yes! This means I won’t be bored today, and though I feel bad for Natsuki, if I make it look like I’m being all lovey-dovey with her, maybe big sister will finally give up today.

“Then let’s go home together.”

“Mm.”

Saying that, we grabbed our bags and left school to head to my house.

“I’m coming in.”

When we got to my house, I headed to my room, and Natsuki said that while neatly lining up her shoes before following me.

When it’s about time for my big sister to come home, I plan to go to the living room to make it look like I’m being affectionate with Natsuki.

“What do you wanna do?”

Once Natsuki and I were alone in my room, I asked her that.

“…Mm, sleep.”

“No way, you’re kidding, right?”

Even though Natsuki’s always sleepy, she usually hangs out and has fun when she comes to my house.

…Oh, maybe sleeping together could work. If my big sister comes home and sees me and Natsuki sleeping in the same bed, she might think I’m doing something weird with Natsuki.

“Alright, let’s sleep together.”

“Huh… I was just joking.”

“No, you’re probably sleepy anyway, right? So let’s sleep together.”

“Sure, if you ask if I’m sleepy, I am, but if I was just gonna sleep, I wouldn’t have come to your house, Miha. And why sleep together anyway?”

Well, yeah… normally, you don’t just sleep with a friend unless it’s a sleepover or something.

“W-Well, don’t you wanna feel, like, human warmth? It’s cozy and makes sleeping feel even better.”

Even for Natsuki, something like this probably won’t convince her to sleep together.

“What are you doing? Come on, let’s sleep.”

Saying that, Natsuki invited me to the bed.

“Oh, yeah.”

Well, I mean, it’s fine with me.

I got into bed with Natsuki, hugged her, slightly loosened my clothes on purpose, and closed my eyes.

If this makes my big sister give up and end up with someone other than me, that’d be great. …I feel really bad for Natsuki, but, well, it’s true that human warmth feels nice, so please forgive me.

—

Chapter 20: Am I the Bad One?

“Miha, what are you doing?”

My big sister’s voice woke me up. …The first thing I saw when I opened my eyes was Natsuki, whom I was hugging, and my big sister, who was smiling but somehow scary.

“M-Morning, big sister.”

“…Good morning.”

When I said that to my big sister, Natsuki seemed to wake up too, following my lead while looking scared of my big sister.

“…Miha, help me.”

Natsuki whispered that in my ear so my big sister wouldn’t hear, bringing her face close to mine.

And seeing that, it felt like my big sister’s smile got even deeper.

“It’s getting late, so you should go home.”

“Oh, yes. I’ll go.”

“Wait, hold on!”

Before I could stop her, Natsuki quickly said, “Thanks for having me,” and left the house.

Left alone on the bed, I tried to get up, but my big sister hugged me and lay down next to me.

Then, her hand slipped inside the clothes I had purposely loosened.

“B-Big sister!?”

“What, Miha?”

“W-What… What are *you* trying to do, big sister!”

“You did something weird to make me jealous, so I thought I’d try getting jealous like you wanted.”

N-No way, that wasn’t my plan at all!

I didn’t do it to make her jealous; I did it so she’d give up on me, but if I say that honestly, she’ll find out I didn’t do anything with Natsuki…

While I was thinking about that, my big sister started rubbing my still-developing chest.

“Ah, w-wait…? B-Big sister, wait…”

“Should I wait?”

“W-Well…”

“Well, I won’t wait.”

Saying that, my big sister pinched the tips of my chest, which had gotten hard from her rubbing.

I could feel my face turning bright red from embarrassment.

“Ah, n-no… That’s not okay…”

“You’re the bad one, right, Miha? Just give up.”

Normally, she’d stop after some back-and-forth, but today I realized she really wasn’t going to stop.

…Am I the bad one? All I want is for my big sister to give up on me soon and be happy with someone else.

“Miha, you’re cute.”

“B-Big sister, n-no… Stop with my ears…”

While she played with my chest, she nibbled and licked my ear. I tried to escape from her, but I couldn’t muster the strength and was easily held down by her.

“Miha, you shouldn’t try to escape.”

O-Of course I’d try to escape!

Even the old me wouldn’t have gone this far! …Probably.

“Miha, if you try to escape again, I’ll kiss you.”

After I tried to escape several times, my big sister said that like it was no big deal.

It’s got to be a bluff. She’s just saying that because she thinks it’ll stop me from trying to escape.

“Miha, I love you.”

My big sister said that one-sidedly and moved her hand toward my stomach.

After touching my stomach a little, her hand went even lower.

“Big sister… N-No, I said… Not there… Really, not…”

Embarrassed and teary-eyed, I thought this was really bad and tried to escape from her.

But as if she read my actions, my big sister quickly pulled me close and pressed her lips against mine.