#1 Mackenzie And John Phillips
Mackenzie Phillips, the daughter of John Phillips, who was part of the singing group The Mama's & The Papa's, has been a spokesperson for consensual incest ever since it was revealed that the father and daughter were having a long standing affair. Apparently, the affair started while she was in her teens and before she began her role on TV's One Day At A Time. She revealed that they often talked about moving to Mexico where they could get married legally and have children. The relationship caused a lot of controversy, and her younger sister had several breakdowns over the anxiety. It also led to Mackenzie becoming a drug addict and alcoholic.
#2 The Colt Family
The Colt family made headlines in 2014 when they were found living in a commune and having incest with all the family members of both sexes. A brother and sister couple started the family and wanted to hide away so they moved into a communal block. The housing block eventually became the home to four generations of incest Colt family members.