Incest is sexual activity between closely related persons (often within the immediate family) that's illegal or socially taboo. The type of sexual activity and the nature of the relationship between persons that constitutes a breach of law or social taboo vary with culture and jurisdiction. The most frequently reported type of incest is father-daughter incest. Incest between adults and prepubescent or adolescent children is a form of child sexual abuse Approximately twenty percent of all women h… (More on Incest)