An exploratory study was conducted with a convenience sample of 41 adult survivors of sibling incest using a retrospective survey design. Participants were interviewed about their childhood sexual experiences with a sibling. Most participants reported vaginal or oral intercourse and coercive experiences. Half of the sample reported sexual experiences with family members, as well as other child abuse. Half of the participants showed evidence of distorted beliefs about child sexual abuse. Disclosure of the incest during childhood was rare. (Contains 2 tables and 3 notes.)