Mackenzie Phillips and Incest

Mackenzie Phillips's long abuse with drugs and alcohol is not the only battle she fought throughout her life. Phillips dishes in a new book, which is to be released tomorrow, that she and her father had a sexual relationship.

The relationship, according to Phillips, started as something that would happen when both she and her father, who also had a drug addiction, would get high together and then have sex. However, what started as a high activity, which was only consensual through the midst of the drugs, soon became just consensual.

Phillips tells all in her book, stating that she and her father both went to rehab together and toured as a father/daughter duo, by that time their sexual relationship had become completely consensual. Phillips and her father even participated in sexual activity the night before her marriage to the Rolling Stones' Jeff Sessler.

Phillips's father even went so far as to proposition her to run away with him. Phillips told People, "He was completely delusional. No, I thought, we're going to hell for this."