Onii-chan Ecchi Shiyo -Imouto no Seiyoku ga Tsuyo Sugite | お兄ちゃん、エッチしよ？ ～妹の性欲が強すぎて…～

One night. As I was about to go to the bathroom before taking a bath, I opened the toilet door—

“…Ah…”

Sumire was in the toilet. Normally, she would just wait for me to close the door without any anger or embarrassment, with a blank expression…

But this time… it was different. She had abandoned her usual blank expression and unresponsiveness, and was blushing with embarrassment, on top of that, an unusual situation was occurring. I couldn't take my eyes off her because of that.

Because Sumire was holding my trunks and sniffing them while pleasuring herself.