My girlfriend's sister Ria Yoshizawa came to my house and I trained her with fingering and toys and had raw sex with her.

While I was living with my girlfriend, her younger sister (Ria Yoshizawa) came over to our house. She was weak to pressure, and she was also super sensitive and had premature ejaculation, so I played with her by fingering her and using toys, but things escalated and we ended up having raw sex!