Mackenzie Phillips tells a story about incest in her new book "High On Arrival" with her father John Phillips that led to a long term consensual sexual relationship. In the book Mackenzie Phillips talks about the drugs that consumed both her and her father John Phillips the legendary singer for The Mamas & The Papas. Mackenzie will be on the Oprah Winfrey Show on Wednesday September 22 2009. Check out the teaser video for the program here
