Most research and clinical data dealing with child sexual abuse have focused on adult offenders (usually a parent or relative) and their child victims. More recently, however, the data are beginning to show that a sizeable number of these sexual encounters are being committed by juvenile offenders. Thus, parents and members of the helping professions are beginning to see that what had previously been labeled sexual experimentation may be more serious. Using 37 cases drawn from the files of a local Children and Family Service agency that met the study definition of a juvenile sexual offense, data are reported on the following variables: the age difference between the victim and the offender, the relationship between victim and offender, the act involved, the context in which the act occurred, the pattern of the sexual contact, problems the offender exhibited that may have resulted from the sexual encounter, and general demographic data about the offender's family.