FSDSS-400 Ami Tokita, who has little knowledge of sex, got horny when she saw her younger sister's defenseless panty shots, so I taught her how to cum for the first time with an adult dick.

On the day I went to visit my girlfriend's house, her younger sister Ami was relaxing in the living room... Her panties were showing because she was defenseless... I got horny with her panty shots and started touching her younger sister. ...I taught a girl who knew nothing about orgasm for the first time...From that day on, I secretly fucked Ami-chan, whose desire for climax became stronger, and satisfied her sexual desire...