I'm addicted to sex with my son who's not related to me by blood. Miu Shiramine ADN-622

Overview： When I was a child,my mother passed away due to illness. I vaguely remember her face,but it's a vague memory. My father ran a company and we lived a luxurious life,but he was never home and I felt lonely. Then,six months ago,my father brought home Kumi. I felt that she looked somewhat like my mother,but she is not my real mother. Kumi treats me like her real son,but for some reason,I didn't like her kindness. I didn't know why,but I finally realized. I was aware of Kumi as a member of the opposite sex.