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1. By their late teenage years, at least 3/4 of all men and women have had intercourse, and more than 2/3 of all sexually experienced teens have had 2 or more partners.
2. While both men and women can experience similar fantasies, women more often fantasize about taking a passive role or being dominated while men more often fantasize about taking a dominant role, doing something sexual to their partner, or having multiple partners.
3. Over half of all spending on the Internet is estimated to be related to sex.
4. US porn revenues have been estimated to exceed the combined revenues of companies like ABC, CBS, and NBC.
5. Most men (63.46 percent) and approximately half of women (46.73 percent) aged 50 and higher report masturbating in the last year. Overall rates for oral sex, penile-vaginal intercourse, and anal intercourse within the last year were similar.
6. Five percent of men and 11 percent of women have never masturbated.
7. About 85 percent of men report that their partner had an orgasm at the most recent sexual event; this compares to the 64 percent of women who report having had an orgasm at their most recent sexual event. (A difference that is too large to be accounted for by some of the men having had male partners at their most recent event.)
8. Men whose most recent sexual encounter was with a relationship partner reported greater arousal, greater pleasure, fewer problems with erectile function, orgasm, and less pain during the event than men whose last sexual encounter was with a non-relationship partner.
9. There is enormous variability in the sexual repertoires of U.S. adults, with more than 40 combinations of sexual activity described at adults’ most recent sexual event.
10. The average vagina measures 62.7 mm with a relatively large range (40.8–95 mm) and the width of the vagina varies along its length. The average erect penis of males in the U.S. is 5-7 inches and the average circumference is 4-6 inches. More recent data (not yet published) indicates an average erect penis length is between 5 to 6 inches, and average flaccid penis length ranges between 1 and 4 inches.
Source: The Kinsey Institute for Research in Sex, Gender, and Reproduction
