Megan Fox can count the number of guys she's slept with on one hand. "I've only been with two men my entire life," the actress, 23, tells the April issue of Harper's Bazaar (via Huffington Post). "My childhood sweetheart and Brian." Fox has been dating (and engaged to) former 90210 star Brian Austin Green on and off since 2004. She continues, "I can never have sex with someone that I don't love, ever. The idea makes me sick. I've never even come close to having a one-night stand."

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The Armani underwear spokeswoman has been downplaying her sexuality. In her most recent interviews, she's expressed her desire to have children and lamented that she doesn't look "classy" in lingerie. Months earlier, she bragged about being "pretty sexy" in her horror movie, Jennifer's Body, and admitted she was "more comfortable" making out with women.

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She explains, "My biggest regret is that I've assisted the media in making me into a cartoon character. I don't regret what has happened to me, but I regret the way I have dealt with it."

Fox says she didn't strip down completely while filming a sex scene for the DC comics adaptation of Jonah Hex (out in June).

"I had on underwear and silicone covers that you wear over your breasts," she says. "My body parts are all I have left now that are only mine -- the world owns everything else." usmagazine