I was born into a broken family and grew up with my grandmother, so I always wanted to live with my mother. That's why I'm always jealous of Yuta. Even though Yuta's parents are divorced, he still lives with his mother. His mother is an extremely beautiful woman with an attractive figure. The closer I am to her, the more I want her. Accidentally I saw Hikari-san masturbating in the bathtub, her big round breasts, white skin and happy face as she was about to climax made my penis erect immediately. I immediately masturbated outside but unfortunately she found out. Unable to control myself, I asked her to help me finish the rest. From that time on, I felt very embarrassed to see her again, I only dared to follow her from afar. One time she had a fever, and because Yuta was studying at university in Tokyo, I went to check on her. Standing so close to her makes the beast inside me awaken. I couldn't control myself and had sex with my best friend's mother. And after that, we continued to make love to each other over and over again. At first she also rejected me but gradually she started to accept me, allowing me to become her other half...