UMSO-573 - My Girlfriend is a Perverted Masochist Pet

A childhood friend and first love who suddenly appeared before me. I felt lust for the sight of her sleeping and exhausted. Noticing this, she comforted me. From that day on, a strange cohabitation life began, and surprisingly, she said she wanted to be my pet. I put a collar on her to satisfy her sexual preferences, and then I became addicted to perverted acts... Five beautiful women who are not satisfied with anything other than masochism appear. Please enjoy!