This role-play is performed by adults. Riko is my childhood friend who was in the same class as me. One day when we were studying for an entrance exam together, I did as Riko told me 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 of them who found out that nipples feel good...