The purpose of this study was to develop a laboratory analogue for the study of peer sexual harassment, and to examine person and situational factors associated with male on female peer sexual harassment. One hundred twenty-two male participants were given the opportunity to tell jokes to a female confederate from a joke list that included sexually offensive jokes, as well as other types of jokes. Participants were exposed to either a sexist laboratory environment or a neutral laboratory environment during the study. Eighty percent of participants told at least one sexually offensive joke to a female confederate. Higher scores on a measure of adversarial sexual beliefs were associated with telling a greater number of sexually offensive jokes. The results suggest that the joke-telling analogue may be a useful means for laboratory explorations of person and situational factors associated with peer sexual harassment.