Page 1 While 75 percent of men always reach orgasm during sex, only 29 percent of women report the same. In addition, most women are unable to climax through vaginal intercourse, instead needing clitoral stimulation.
Source: National Health and Social Life Survey
Page 2 According to a survey of adults aged 20 to 59, women have an average of four sex partners during their lifetime; men have an average of seven.
Source: National Center for Health Statistics
Page 3 The average male loses his virginity at age 16.9; females average slightly older, at 17.4. And a new study shows that genetics may be a factor: inherited traits, such as impulsivity, can make a person more or less willing to have sex at an earlier age.
Sources: Kinsey Institute; California State University