Yuri is a married woman who is married to a man with a child. She is confused but happy when she starts living with her stepson, but her stepson's love for her gets out of control and she is attacked. Yuri awakens as a woman through the young man's insatiable sexual desire and loving French kissing. The once faithful wife becomes obsessed with adultery, and becomes addicted to creampie sex, regardless of her risk days...