ROYD-372 My much older sister, who still treats me like a child, insists that I need to wash properly and tries to gently and carefully clean me. Kitano Mina

I have an older sister who is very beautiful, but she is also quite overprotective and still treats me like a child even though I’m in high school. She meddles not only in my studies and private life, but even in how I take a bath. The moment she saw that I was still uncircumcised, she said, You need to wash properly! You won’t be popular with girls! and tried to pull back the skin and clean it for me.

Even though she is already so beautiful, when she touched me like that, I quickly became aroused. My body reacted strongly, and my sister was startled at first. But before long, she seemed increasingly flustered and excited, and I ended up losing control. Seeing my reaction, my sister became strangely turned on and said, Hey… maybe we should do something more grown-up together, with a face I had never seen from her before.