Shauna Sand: I Took Chace Crawford's Virginity!

Not that Shauna Sand has an ounce of credibility, but you won't believe the latest headline-grabbing statement the nasty former Playboy model is making.

In an interview with Star, she says she nailed Chace Crawford.

It all happened in 2003, years before Gossip Girl brought him stardom. Then an 18-year-old freshman at Pepperdine, Chace met actress/model Shauna.

Shuana Sand, then 32, soon took the Texas native's virginity.

"He was so incredibly beautiful. I immediately fell in love with him!" Shauna recalls of meeting the future Gossip Girl cast member at a college party in Malibu.

The couple began dating "and I gave him a key to my apartment."

Shauna Sand says she had sex with Chace Crawford.

They quickly "wore out a path to the bedroom," says she.

A friend tells Star that even though Crawford dated a girl in high school: "Chace told me, 'Shauna was the first girl that I ever had sex with! She blew my mind!'"

Although the friend says Chace and Shauna had a "secret relationship," the couple dated off and on for a year before they drifted apart. But, in 2007, after Shauna's brief second marriage ended, Shauna said the spark was reignited!

Sure. And the Shauna Sand sex tape wasn't at all staged. It says a lot about Shauna that she's trying to sponge off the fame of someone that much younger.

Interestingly, the last time that Sand was accused of banging a teenager - in that case her own stepson A.J. Lamas, her ex-husband's kid - she denied it.

She likes 'em young, but maybe the family thing made it taboo.