Bijou Phillips
Photo: John M. Heller/ Getty Images

In an episode of "The Oprah Winfrey Show" airing on Friday afternoon (September 25), Bijou Phillips responded to her half-sister Mackenzie's allegation that she had a decade-long incestuous relationship with their father, John Phillips of the Mamas and the Papas, according to a report from The Associated Press.

In statement read by Winfrey on the show, Bijou said she was 13 when Mackenzie first told her about the relationship. Bijou, now 29, said she was angered by the revelation.

Mackenzie returned to "Oprah" on Friday, following her Wednesday interview with the talk show host, during which she said her father raped her and gave her drugs when she was 18.

Bijou also gave a statement to Us Weekly. "Mackenzie's history with our father is hers, but also clouded with 30 years of drug abuse. ... I hope she can come to terms with this and find peace," the actress said. "The life I had with my father was very different. He was Mr. Mom, encouraging and loving. The man that raised me would never be capable of doing such things, and if he was, it is heartbreaking to me to think that my family would leave me alone with him.

"I understand Mackenzie's need to come clean with a history she feels will help others, but it's devastating to have the world watch as we try and mend broken fences, especially when the man in question isn't here to defend himself," the statement continued.

Genevieve Waite Phillips, who was married to John when the abuse allegedly occurred, disputed the Mackenzie's account in a statement on Wednesday's episode of "Oprah." "John was a good man, who had the disease of alcoholism and drug addiction," the statement said. "He was incapable, no matter how drunk or drugged he was, of having such a relationship with his own child."