A group-randomized controlled design to test the efficacy of the Project ÒRÉ intervention, a community-based adolescent social network HIV/STI intervention tailored to African American culture. Four community based organization sites (CBOs) will be randomly assigned to an experimental or attention control condition. In both conditions, sexually experienced African American adolescent females will recruit members of their friendship group for the five-hour program. In the experimental condition, the intervention group will receive the half-day Project ÒRÉ intervention. The attention control group will receive a standard health promotion control program which has been used previously with similar populations. All participants will complete pre-, post- and 3-month follow-up self-administered questionnaires. In the experimental condition, a subset of groups will participate in a process evaluation focus group immediately following the program.