Sibling incest is an understudied field despite its high prevalence rates. The current study was designed to characterize the way children describe their experiences and perceptions following alleged sibling incest. The sample consisted of 20 forensic investigations with children who were referred to forensic investigation following suspected sibling incest. The age range of the children was between 6 and 12 years old, including 17 girls and three boys. Thematic analysis was conducted on all the interviews and the children’s perceptions greatly echoed the ecological framework while they elaborated on three levels: family level, in which children discussed the context of the abuse and the disclosure; sibling level, in which children discussed their siblings’ behaviors and the grooming process; and the child level, in which the children discussed their own behavior during the abuse. The discussion highlights the relevance of the ecological framework to the study’s results and stresses the complexity of this phenomenon and the challenges it raises for practitioners in various contexts—child protective, forensic, and clinical.