Chapter 72: Siblings (Yuna)
After finishing my shower, I dried off in the changing room and started getting dressed.
I hesitated over what to wear after a bath. The idea of going out in just a towel crossed my mind, but it felt far too unrealistic. In the end, I went with my usual loungewear.
That said, for my underwear, I had picked a matching pink lace set—what you’d call "special occasion" underwear.
“It’s not just for showing off to guys, you know. Sometimes you wear it to boost your confidence—like before a test, or when there’s a chance someone might see during a trip or while changing.”
That’s what Yuna had told me when she picked it out for me.
Never in a million years did I imagine I’d be wearing it for her—and for its intended purpose, no less.
I slipped on a camisole, then pulled a one-piece dress over my head to finish getting dressed.
When I first became like this, I couldn’t relax unless I was wearing pants. But now I’d gotten completely used to it.
I turned to the full-length mirror. The reflection showed me, in my everyday clothes—just the usual version of me living my everyday life in this house.
But the reality was that I now stood on the edge of something far from ordinary: I was about to sleep with my sister.
I called out to Yuna in the living room, telling her I was done with the shower, and returned to my room. The exchange between us had grown noticeably awkward.
Back in my room, I drifted through a strange stretch of time.
All I could think to prepare was to spread a bath towel over the bedsheets, just like always. Beyond that, nothing else came to mind.
There was a toy Hisui had given me hidden in the drawer beneath the bed, but I wasn’t planning to use that with Yuna.
I sat down on the bed and, trying to kill time, picked up my phone. But no matter how much I browsed, none of the words registered in my head. I didn’t feel like playing any games either, so I eventually set it down on the nightstand.
Hugging a pillow in both arms, I sank into thought.
“…Can I really sleep with Yuna?”
I voiced the doubt exactly as it surfaced in my mind—without even bothering to switch to Alice’s speech pattern.
『…Ikuto-san, do you really not want to?』
Alicia had heard me, and her voice came again, uncertain. I must have made her worry.
“That’s not it… It’s just that—I’ve never once had any sexual feelings toward Yuna. You know that, don’t you?”
『Now that you mention it… yes, I think you’re right.』
I’d never been aroused by my sister before.
Sure, when she washed my body, I’d had a physical reaction—but that was a bodily reflex, not the heightened pleasure that comes from emotional arousal.
Even when I tried on her hand-me-down panties, all I felt was a deep discomfort. If it had been a stranger’s, I probably would’ve gotten worked up right away.
“I might not feel anything doing it with Yuna. It might not work out. And if that happens, it’s my issue—not yours—so I don’t want you to feel bad about it, Alicia.”
What mattered most was easing Alicia’s worries.
Still, if I failed with Yuna, it might just make things worse.
If it were just about getting through the act, I could probably fake it—make sounds, pretend to enjoy it. But Alicia would never be fooled by that.
『Understood… But I don’t think there’s anything to worry about.』
“…You think so?”
『Because Yuna is cute. You know that better than anyone, Ikuto-san.』
That much was true—even objectively speaking, Yuna was a classic beauty with long black hair.
But that wasn’t the issue here. Yuna was my sister.
While I was still talking with Alicia, time had slipped by.
At last, there was a knock on my bedroom door.
Feeling a little tense, I called out, “Come in,” and the door slowly opened. Yuna stepped into the room.
The moment I saw her, I gasped.
Yuna had wrapped a single bath towel around her body—wearing nothing else.
Her hands were folded across her chest, as if to hide herself, holding her change of clothes.
I was used to seeing Yuna’s skin. We’d bathed together more times than I could count. I’d even seen her completely naked on numerous occasions.
But the girl standing in front of me now, blushing and bashful, gave a completely different impression from the Yuna I had known until now.
The bare skin extending from her neck, across her collarbone to her shoulders. Her chest, modestly hidden behind folded arms. The elegant curve from her waist to her hips, which the towel couldn’t entirely conceal. Her long, slender legs rubbed together nervously, toes turned inward—and all of it stirred something indescribable in me.
“…Don’t stare so much.”
Yuna turned her face away, gently scolding me for my thoughtless gaze.
Her cheeks were tinged with red, and her eyes glistened faintly.
There was no trace left of the big-sisterly demeanor she always showed as “Yuna” in front of me as Alice.
The girl standing there now was just that—a girl, carrying a mix of anxiety and anticipation about what was about to happen.
Thump—my heart leapt in my chest.
…What is this?
I couldn’t hide my confusion at the sudden swell of emotion rising inside me.
『See? I told you everything would be fine.』
Alicia’s voice echoed in my mind—like a devil’s whisper.
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