QUICK TAKES - Sept. 26, 2009

Actress Bijou Phillips said she knew her half-sister Mackenzie Phillips had consensual sex with their father, Mamas and the Papas leader John Phillips.

In a statement read by Oprah Winfrey on her talk show Friday, Bijou Phillips said she was 13 years old when Mackenzie Phillips told her about the sexual relationship. Bijou Phillips, now 29, said the news was confusing and scary.

Mackenzie Phillips was a guest on the show for the second time this week to promote her new book, “High on Arrival,” in which she details the relationship with her father. Two of her stepmothers, including Mamas and Papas singer Michelle Phillips, said she is lying and just trying to cash in with the book.