Oh no, my fifty-year-old wife! I can't believe my father-in-law is still getting an erection! A father-in-law who begs me to straddle his face, a son who uses his mother as a substitute for a sex toy, and a husband who doesn't touch his wife. She is a wife, a mother, and even an aunt. Infidelity in 4 families: deviant sexual acts in a distorted household.