Evidence indicates GLB individuals may be at greater risk for high rates of alcohol consumption; however, few studies have identified specific factors explaining why differences exist. Using data from the 2001 College Alcohol Study, we examined the ability of drinking motives and social norms to explain the relationship between sexual orientation and binge drinking among over 7,000 students. Findings suggest drinking motives and norms are important for all college students and may be more relevant than demographic characteristics such as sexual orientation. Prevention efforts focused on motivations for drinking, therefore, may be effective for all students regardless of sexual orientation.