Chapter 10

When I got home, Yuni-san had already returned from her part-time job.

It looked like she was preparing dinner.

I went upstairs to my room, and the sight that met my eyes left me speechless.

The blanket on my bed was bulging suspiciously.

Sighing, I lifted it up.

“What are you doing, Yuina?”

“Ahaha, busted. Just a little prank.”

Yuina, curled up on the bed, stuck out her tongue with a cutesy expression.

Still in her school uniform, she lay back on the bed, lifting her skirt to tempt me.

“Wanna eat?”

“No.”

I chopped her lightly on the head and pulled her off the bed.

Yuina sat back down on the bed with a pout.

“You know, Hotaka, you’re amazing. I mean, normally, if a beautiful girl like me tried to seduce a guy, his eyes would go all wide and he’d jump me.”

“Don’t think every high school boy spends all his time thinking dirty thoughts.”

Sure, I was fully aware I had a strong sex drive, but that didn’t mean I’d lost my reason.

No matter how much Yuina tried to tempt me, I was confident I could repel her with a will of steel.

“Geez, you’re no fun. Oh well, guess I’ll change.”

With that, Yuina stripped off her uniform right in front of me. Seeing her in just her underwear, I felt my composure waver.

“Hey, if you’re gonna change, do it in your own room.”

“It’s service. Even if you can’t do anything, it’s still nice to look, right?”

Indeed, Yuina’s underwear-clad figure was provocative, her cleavage clearly visible, her figure on full display.

Wait, she’d even brought a change of clothes in here?

Moving seductively, she let me watch her change before slipping into loungewear.

“So, onii-chan, since we’re here, let’s play a game.”

“A game?”

“Yeah. I think playing games is the best way for siblings to bond. So let’s do it.”

“I guess I don’t mind.”

“Yay!”

With that, Yuina pulled a small box out from under my bed.

“Twister game? What’s that?”

“You don’t know Twister? Players put their hands or feet on the colored spots they’re told, and the last one standing wins. Simple as that.”

So there was a game like that. I didn’t know since I wasn’t into games.

Also, did she just pull that out from under my bed like it was nothing?

Has she been coming into my room without me knowing?

“I got it at a Christmas party, but never had a chance to use it. So let’s play together.”

“Alright.”

Yuina took the mat from the box and spread it across the floor.

Circles of various colors were printed on it.

I see, so you put your hands and feet on the colors that come up.

Simple, but it looked tricky—you’d have to think about your posture

and be flexible.

“Okay, Hotaka, you go first.”

Yuina flipped the machine’s switch, and it displayed “red.” I placed my foot on a red circle.

Then it was Yuina’s turn—“blue” came up, and she placed her foot on a blue circle.

It seemed this version worked for two players, and the machine gave automatic instructions.

Next, my turn—“green.”

I placed my hand on a green circle.

Hmm… this game actually brought you pretty close to your opponent. It might even be strategic to block their moves with your own placement.

After a while, the positions started getting tough. I was in a pretty strained pose, both hands behind me for balance.

“Blue, huh? Hehe, then…”

Following the instruction, Yuina looked for a blue circle—and instead of taking one near her, she reached for one near me.

“Mmph!”

Her breasts pressed right into my face. A sweet scent tickled my nose and fogged my mind.

With her breasts against me, I reflexively inhaled, but instead of air, it felt like her pheromones were flooding straight into my brain.

Unable to take it, I collapsed onto my butt.

“Okay, Hotaka lost.”

Yuina pumped her fist happily.

True enough, I’d lost.

No doubt she’d suggested this game with ulterior motives—

to tangle herself up with me and seduce me.

But I wasn’t going to let her win that easily.

I’d beat her at this game and prove I wouldn’t give in to temptation.

In the second match, the positions were easy at first, but soon grew tougher again. Yuina’s body brushed mine, and my strength started to fade. This time she ended up with her back to me, her big ass right in front of my face.

I tried to lean away, but when I moved to follow the next instruction, I lost my balance and buried my face right into her ass.

“Kyaah!”

Yuina let out a delighted squeal. Grinding my teeth at having fallen into her trap again, I could still feel the soft shape of her backside on my cheek. And before I knew it, my “little brother” had perked right up.

To hide the tent in my pants, I quickly leaned forward, but Yuina didn’t miss a thing. She grinned and stared at me.

“Did you react?”

“Shut up!”

My face burned under her teasing. Even if we’d already crossed that line before, this kind of thing still got to me. They say men get used to women with experience, but physical temptation still drew a reaction, no matter what.

“Enough. I’m done. Bad for my heart.”

“Ehh, let’s play more. You okay with losing like this?”

“I’m not falling for that.”

It’s not like I was especially competitive.

I wasn’t such a kid that I’d take the bait just because Yuina provoked me.

“Tch, boring.”

Despite her words, she looked satisfied.

Of course, she’d gotten to tempt me plenty.

“Alright, out you go. I’ve got studying to do.”

“Ehh, let’s hang out more.”

“Next time.”

I forcibly pushed her out of my room.

I needed to do it immediately, for reasons currently straining against my pants.

Ever since living with Yuina, the number of times I have to pull out has definitely gone up. I was sure it was because of her constant temptation. Even so, someone should praise me for not laying a hand on her. Tossing the used tissues into the trash, I exhaled quietly. Living under the same roof with a girl was harder than I’d thought. Finding chances for doing it was a struggle. Even alone in my room, I always worried she might barge in without warning.

I’d once knocked on her door while she was in the middle of it and if I’d just opened it without knocking, I didn’t even want to imagine it.

If the guys at school knew Yuina was this lewd, would they be disappointed?

No—probably thrilled. High school boys were that starved for anything sexual.

“Yuina, Hotaka-kun, dinner’s ready!”

Yuni-san’s voice called up from downstairs. I answered and went down. Dad wasn’t home yet, but his place was already set at the table.

“We’re having curry tonight?”

“That’s right. I heard from Shigetaka-san that you like spicy curry, Hotaka-kun.”

“That’s right.”

I sat at the table and pressed my hands together. Yuina arrived late and sat down as well. Her curry looked yellowish, while mine was darker.

“You even made it separately?”

“It wasn’t any trouble. Yuina can’t handle spicy food.”

“Ehh, so you can eat spicy stuff, Hotaka-kun?”

Yuina stuck out her tongue and made a face.

So, she couldn’t handle spicy food. Another new thing I’d learned about her. I scooped up some curry and brought it to my mouth.

“Mm, delicious.”

The spiciness tingled my mouth and shot up my nose, a sensation I loved.

It wasn’t truly fiery, though—more of a mild kick. A bit lacking, honestly.

Watching me eat without flinching, Yuina wondered aloud if it wasn’t that spicy.

“Wanna try?”

I scooped up a bite and held out the spoon to her. At this point, neither of us cared about indirect kisses. Yuina accepted it without hesitation.

“Mmm—!?”

Her face instantly twisted, eyes brimming with tears. Apparently even this level was too much for her. Reaching toward Yuni-san for water, she was quickly handed a glass, which she downed in one go, then leaned back, breathing hard.

“What’s so good about something this spicy?”

“That’s what’s good about it.”

Sweet-tooths and spice-lovers could never truly understand each other, an age-old war. I could handle super-spicy dishes, so our taste buds were fundamentally different.

From then on, Yuina ignored my curry entirely and devoured her own with single-minded focus. Judging by how she reacted, hers was probably sweet curry. That childish palate of hers was… actually kind of cute.

I smiled to myself.

We were still eating when Dad came home. He looked tired, but seeing us seemed to brighten his face.

“Nothing beats the whole family together at the table.”

I was truly grateful to my father, who worked hard for us. When he sat down, Yuni-san served him a plate of curry.

“Hotaka, getting along with Yuina-chan?”

As expected, having a boy and girl of our age live together was something he worried about.

“No worries. Yuina-san and I decided to run for the student council together.”

“That’s great.”

“Hotaka-kun’s always supporting me, so no need to worry.”

“That’s right. You two just get along and don’t mind us.”

“Thanks.”

Seeing Dad and Yuni-san’s relieved faces, I smiled. They must have agonized over this remarriage. They couldn’t have been oblivious to the complications

of making a teenage boy and girl live together. But still, they’d chosen to be with the person they loved. I just hoped Yuni-san wouldn’t betray Dad this time.

I still couldn’t bring myself to trust women.

I hate this part of me.