Humans `` have an instinct for avoiding incest or inbreeding , '' said Debra Lieberman , an assistant professor of psychology at the University of Miami ( Florida ) who researches incest . Actress said she had sexual relationship with her father for years . Experts : AIDS is one of the most under - reported and least discussed diseases . Real life after incest is possible , actress says .
Actress said she had sexual relationship with her father for years . Experts : AIDS is one of the most under - reported and least discussed diseases . Real life after incest is possible , actress says .