This study investigated the characteristics of the sexual abuse perpetrated by 16 juvenile (JSO) and 19 adult sexual offenders (ASO). Data were collected from a randomly selected group of males who received psychotherapy services at a community agency. The results revealed significant differences between the JSOs and the ASOs on the number of committed offenses, length of sexual relationships maintained with victims, quality of these relationships, nature of the sexual acts committed, and presence of force during abuse incidents. The results show similarities and differences in the sexual abuse characteristics perpetrated by juveniles and adults.