Mackenzie Phillips "Shocking" Family Secret

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In her new tell-all book, former child star Mackensie Phillips ("One Day at a Time"), daughter of "Poppa John" Phillips of the 60's folk/rock group, The Mammas and the Poppas, spills all sorts of dark family secrets.

(From D-Listed)

"On Oprah tomorrow (Wednesday), Mackenzie Phillips is supposed to drop an OMGWTFIDIEWHYWHY family secret. Well, the secret is out and it is definitely all sorts of fucked up. You might want to clear your throat and wash your eyes out with holy water before, after and during.

In her new tell-all book High on Arrival, Mackenzie says that she had sex with her father, John Phillips of the Mamas and the Papas. California Nightmarin'!!!!!!!!!!!

49-year-old Mackenzie said that she would do the bad shit with her father all the time. In fact, John, who died in 2001, shot Mackenzie up with heroin for the first time. And on the night before her wedding to Jeff Sessler in 1979, her dad tried to stop her from marrying his ass. Mackenzie writes, "I had tons of pills, and Dad had tons of everything too. Eventually I passed out on Dad's bed. 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. Had this happened before? I didn't know. All I can say is it was the first time I was aware of it. For a moment I was in my body, in that horrible truth, and then I slid back into a blackout."

The following year continued to be a fucked up time for Mackenzie. She was fired from One Day at a Time for being addicted to the bad shit and she went to rehab with her father. Mackenzie says their sexual relationship became "consensual." She went on to write, "I was a fragment of a person, and my secret isolated me. One night Dad said, 'We could just run away to a country where no one would look down on us. There are countries where this is an accepted practice. Maybe Fiji.' He was completely delusional. No, I thought, we're going to hell for this."

If this isn't an anti-drug ad, I don't know what is. But Mackenzie said that we shouldn't "hate" her father for this. Too late. According to Mackenzie, the dude introduced her to heroin and forced/manipulated her into a sexual relationship with him. So not only is this an anti-drug ad, but it's an anti-John Phillips ad too."