Some male sex workers (MSWs) are also engaging in a significant amount of illicit drug use and other high risk behavior. The purpose of this study was to examine demographic characteristics, HIV risk behaviors, and sex partner characteristics in a sample of MSW. Data were collected from 179 men who were trading sex for money in Houston, TX. In the past 30 days they reported an average of 56 male partners and 5 female partners. Of the 179 men, 152 had been tested for HIV and knew their status. Twenty-six percent of those tested had tested positive.