Prevalence and characteristics of sexual hookups among first-semester female college students.

First-semester female college students (N = 118) completed surveys to estimate the prevalence of sexual hookups and event-level assessments to clarify the behavioral characteristics of their most recent hookup. Hookups involving oral, vaginal, or anal sex were reported by 51% before college, 36% during their first semester, and 60% by the end of their first semester. Event-level analyses revealed that hookups were more likely to involve friends (47%) or acquaintances (23%) rather than strangers (14%); alcohol use (median = 3 drinks) preceded 64% of hookups. Condoms were used during 69% of vaginal sex hookups.