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U.S. study of human sexual behavior
Large probability surveys and academic reviews show consistent patterns: the most commonly reported partnered sexual acts among men are vaginal intercourse, oral sex, and masturbation as a frequent so...
Large, event-level probability surveys in the U.S. typically find that roughly 60–65% of women report having an orgasm at their most recent sexual encounter, a proportion that falls well below men’s r...
Large, nationally representative sex surveys such as the National Survey of Sexual Health and Behavior (NSSHB) routinely measure a wide range of partnered and solo sexual behaviors and changes in sexu...
Most major U.S. nationally representative sexual‑behavior surveys ask about whether respondents have had anal intercourse, but explicit questions that distinguish directionality — who was insertive ve...