This is a record of a woman who is extremely well-developed, who is a naked man and seduces her defenselessly, so she has sex with him.

It's been three years since we last visited. As usual, my sister was completely naked at home. The only difference from before is that my sister's body had grown to such a degree that she couldn't find a way to see it. Even my younger brother, I can't help but notice my older sister's body. I was reaching my limit as my sister's body seduces me defenselessly every day...