Though Mackenzie Phillips has claimed that she had a decade-long sexual affair with her father, her relationship with her own son Shane is uncomplicated and loving. The former 'One Day at a Time' child star appeared on 'Today' to discuss the affect her shocking allegations have had on the Phillips family, and told Meredith Vieira, "I sat down with him about a month ago, and I said you need to prepare. As a family we need to prepare for some of the hard truths that are going to come out of this book. I sat down and took him through it and he looked at me and put his head on my shoulder and said, 'Poor mama. You better tell dad!' He's an amazing kid and nothing but supportive of me."