5 Surprising Sex Facts You've Never Heard

The results of a large-scale survey on sexual behavior were just released...and the findings will probably surprise you.

By Zoë Ruderman

The study, conducted by the Centers for Disease Control and Prevention, looked at everything from anal sex to virginity, girl-on-girl behavior to number of partners.

We pored over the info and pulled out the most fascinating facts for you...

People are waiting longer to have sex. Twenty-nine percent of females and 27 percent of males between the ages of 15 and 24 have never had sex. (That's up seven percent for both guys and girls from 2002).

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About a third of ladies are having back-door sex. Thirty-six percent of women surveyed said they'd tried anal sex, compared to 44 percent of guys.

Women are more likely to get bicurious-and act on it. Twelve percent of females between 25 and 44 have hooked up with another chick. That's about double the number of dudes who have done guy-on-guy. This is is up among women and down among men since 2002.

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Living together doesn't equal regular sex. Or even sex at all. A little less than one percent of females cohabiting with their boyfriends haven't done the dirty in the past 12 months. Yikes.

In general, men have more notches in the bed post than we do. Here's the breakdown of how many sexual partners women, aged 15 to 44, have had: 11.3 percent are virgins. 22.2 percent have slept with just one guy. 10.7 percent, with two guys. 31.6 percent, with three to six guys, 16 percent with seven to 14 guys, and 8.3 percent have had 15 or more partners. And the stats for men - 0 partners: 11.4 percent; 1 partner: 15 percent; 2 partners: 7.6 percent; 3-6 partners: 26.5 percent; 7-14 partners 18.1 percent; 15 or more partners: 21.4 percent.

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Do any of these numbers seem surprising or off to you? Do you think it's true that more and more women are trying out girl-on-girl action?

Read more at Cosmopolitan.com!