[SDHS-033] There's nothing wrong with a bad old boy who messes with a young man, playing with his anus and making him cum, right? A female student develops a masochistic man through sex with anal licking and finger insertion, a strap-on, a double-heade (Censored)

``This is the diary of how I played pranks on my uncle during summer vacation.'' Ai, a female student from Aomori, secretly had a desire to bully her uncle. But if you're local, you can't do it because there will be rumors about it...If that's the case, then it's okay to play pranks on the bad old man who goes to Tokyo and tries to have a baby with you during the summer vacation, right? Sexual curiosity goes out of control...!! Anal finger insertion, anal licking, double-headed dildo, strap-on, anal plug sex, and double female orgasm as she cums on her uncle's dick and squirts a lot!! At the end, she has memories of a summer where she even had a strap-on orgy with the boys she trained.