Mackenzie Phillips Speaks Out About Alleged Abusive & Incestuous Relationship with Her Dad

One Day at a Time actress Mackenzie Phillips is speaking out about her father, with whom she says she had an abusive and incestuous affair with for a decade.

The 64-year-old actress first spoke out about the alleged affair in her memoir, 2009′s “High on Arrival.”

In the memoir, she says her father, the Mamas & the Papas musician John Phillips, reportedly raped her the night before her wedding to Jeff Sessler when she was 19. After that, she alleged that they began consensual incestuous affair that lasted about 10 years.