My son's girlfriend's looks and figure are exactly what I like; I can't stop getting an erection. (Mizono Kazuka, SAME-193)

My son rarely mentions introducing his girlfriend to me. He probably wants to get married. I wanted to see if this woman was right for my son. That day, the woman who appeared before me was exactly my type. Her looks and figure perfectly matched my preferences. For the first time in years, a surge of sexual desire overwhelmed me, and I couldn't resist. I suggested to my son's girlfriend, "Why don't we live together before we get married?" For the sake of sex.