UMSO-573 My girlfriend is a perverted masochistic pet

A childhood friend and the girl I had my first crush on suddenly appeared before me. I became aroused by the sight of her sleeping exhausted. Noticing this, she comforted me. From that day, a strange cohabitation began, but she said she wanted to be my pet. To satisfy her fetish, I put a collar on her, and then we got hooked on perverted acts… Five beautiful women who can't be satisfied unless they are masochists appear. Enjoy!