Sexual Behaviors across 9 National Cohorts of Young Males and Females Ages 15-19 • Jacinda K. Dariotis, Johns Hopkins Bloomberg School of Public Health ; Kara Joyner, Bowling Green State University ; Sally C. Curtin, University of Maryland ; Freya Sonenstein, Johns Hopkins Bloomberg School of Public Health ; Kristin Moore, Child Trends ; Elizabeth Peters, Cornell University

Life Course Specific Motivators and Implications of Early Young Adult Casual Sex Behavior • Heidi Lyons, Oakland University ; Wendy D. Manning, Bowling Green State University ; Peggy C. Giordano, Bowling Green State University

Sexual Practices, Learning, and Love: Accounting for Women’s Orgasm and Sexual Enjoyment in College Hookups and Relationships • Paula S. England, Stanford University ; Elizabeth Armstrong, University of Michigan ; Alison Fogarty, Stanford University

Prevalence and Correlates of Sexuality-Related Distress among Older Adults in the United States • Adena M. Galinsky, University of Chicago