Riko Hoshino loved her childhood friend's grown boobs so much that she kept playing with her nipples at school for a year.
Riko is my childhood friend who was in the same class as me. One day while we were studying for an entrance exam together, she did as Riko told her to do and touched a girl's breasts for the first time. Since then, I can't help but be curious about Riko's breasts both at school and after school, and whenever I have free time, I secretly let her touch them every day. And especially the two who found out that nipples feel good...
