In her new book, "High on Arrival," Mackenzie Phillips claims that she had a sexual relationship with her father, John Phillips, who was a member of the 1960s band, the Mamas and the Papas. Phillips, who starred on the TV show "One Day at a Time," writes that she had sex with her father on the night before she was to get married in 1979. "My father was not a man with boundaries. He was full of love, and he was sick with drugs. I woke up that night from a blackout to find myself having sex with my own father," she writes in the book.