My wife departs for a hot spring trip of 2 nights and 3 days with a friend. My wife's mother is 44 years old and she is a woman. She is a woman who is youthful and charming and has an attractive femininity. My mother-in-law has a slim figure but moderate flesh, and I have always felt sexual desire. My wife's family treats me like a real son. However, I have an evil feeling toward my mother-in-law, and I want to make her feel that way ...