huntb00636 , page 7

My sister's friend (big breasts) visited me at night next to my sister who was sleeping next to the river! - And creampie! - When I was living in the apartment of my older sister, a university student living in Tokyo from the countryside to take entrance exams, my older sister often invited her friends over. - Moreover, they all have big breasts and can't study.

I share a room with my little sister, a slutty high school student, in a small house. She brings her friend (who's also a slut, naturally), and they're talking about slutty things that are pretty extreme for me, a high school student. Even though I don't want to listen, I can't help but overhear them, and my heart is beating fast. My sister's friend, who's been watching me behaving suspiciously, takes advantage of the opportunity when my sister isn't around...