In an analysis of a study from the National Survey of Sexual Health and Behavior, Five Thirty Eight’s Mona Chalabi found that different sexual acts resulted in varying orgasmic success (or failure) for men and women. Men had orgasms around 90 percent of the time regardless of the sexual acts they engaged in. By comparison, only 64 percent of women got off from mutual masturbation, 66 percent had orgasms from vaginal penetration, and 81 percent got there from receiving oral sex.

But anal sex got the highest marks for both men and women. “Anal sex appears to be the hands-down winner for both sexes,” Chalabi wrote. “100 percent of men and 94 percent of women say they orgasmed during encounters in which they received anal sex.”