MBSGM 09

Chapter 09 

The Stepsister Wants to Be Undressed

“‘It’s fine if you undress me’… Yuzuka? What are you saying?”

Normally, I would have shouted in shock, but since I couldn’t raise my voice in this situation, I held it back. Still, even without volume, my tone betrayed my agitation, and inside I wasn’t just shaken—I was completely stunned.

After all, while Yuzuka had often said things like she wanted to marry me, she had almost never gone this far with something so direct.

No—“almost never” wasn’t right. This was probably the very first time she’d been this straightforward, both physically and in meaning.

“What I mean is, it’s fine if you undress me… no, actually, it’s more accurate to say that I want you to undress me.”

“…There’s no way I could do that to my little sister.”

“But it’s because I’m your sister that you can do it. Isn’t it pretty normal for an older brother to help his little sister change her clothes?”

“Even if that were true, it only applies when we’re little kids. Now that we’re both in high school, it’s not something we should be doing.”

“…Since I can tell you’re looking at me as a girl, I guess I’ll stop for today~.”

With that, Yuzuka tried to step out of the fitting room—but I grabbed her wrist.

“I was going to do what you wanted and leave the fitting room without making a fuss, so why are you stopping me?”

The reason was obvious: I was troubled by what she had just said.

“What do you mean, that I see you as a girl?”

“Exactly what I said! You see me as a girl, which is why you can’t undress me. If you really thought of me as just your sister, then even if it was a little embarrassing, you’d at least be able to help me take off my clothes. The fact that you can’t means you see me as a girl—and you’re too self-conscious and embarrassed about seeing my body as a woman.”

“That’s not it, I—”

“I’ll give you a little more time since it’s you, big brother. But if you want to deny it, then show me with your actions.”

She turned to face me, positioning herself so I could reach her uniform buttons at any moment.

…Looking at her directly again, I realized just how well-formed her features were. For a first-year in high school, her figure was incredible. Honestly, even though she’s my sister, she perfectly matches my type in every way.

If she hadn’t been my sister—if she had appeared before me simply as another girl—I might have fallen for her at first sight. That’s how much she fits my ideal type.

But cruelly, Yuzuka is my sister, and I am her older brother. Which means I must fulfill my duty as her brother.

“…Eh?”

When I reached out and patted her head a few times, Yuzuka looked startled.

And then I told her:

“You’re my little sister. No matter the reason, there’s no way I could undress you.”

“W-wait, big brother! After everything that just happened, you’re going to forcefully shove me into the ‘little sister’ role again!? That’s unthink—”

Before she could finish protesting, I gently stroked her head again.

This time, her lips curved into a faint smile as she muttered:

“Ahh, I really do love it when you pat my head, big broth—no, wait! Don’t treat me like a child!”

She quickly snapped back to herself, but seeing her expression a moment earlier made me certain.

“Yuzuka, you’re my precious little sister. That’s why I could never do something like that to you.”

After saying that, I stepped out of the fitting room before she could.

“W-wait, big brother! I just want to be able to love you more freely, not just as your sister… Maybe unless I push even harder, you’ll never see me as anything more than that…”

Afterward, nothing strange happened. We browsed around the mall together, grabbed something to eat, and then went home.

There was a bit of an incident, but still… going out with Yuzuka really was fun.