Young people between the ages of 13 to 24 are at persistent risk for HIV infection in the United States (Centers for Disease Control and Prevention [CDC], 2006). Young adulthood is a period characterized by experimentation, including engagement in risky behaviors (e.g., substance use and sexual behavior) (Moore & Parsons, 2000). Most young adults are sexually active, with the highest rates of sexual activity reported among youth of color (Park, Mulye, Adams, Brindis, & Irwin, 2006). The prevalence of sexually transmitted infections (STIs), especially chlamydia and gonorrhea, peak in young adulthood and are highest among youth of color (CDC, 2003).