Julianne Hough by Gregg DeGuire/ WireImage.com
Hollywood may be rife with hard-partying, serial-dating young stars, but Julianne Hough isn't one of them. I know, it's hard to believe, but the blond Dancing With the Stars bombshell not only abstains from drinking, smoking and drugs - but she's still a virgin.

Us reports that in the new issue of CosmoGIRL!, Hough, 19, opens up about her closed-door policy. She explains that she wants "to be with that special person. I think to have sex before marriage is an individual [decision]." She adds, "[Waiting] will strengthen that relationship."

"I'm not trying to preach consequences here," she continues, "but I think when you say no, down the line, it will be a better decision."

Hough was previously engaged to Zack Wilson, a contestant on Dance War, but broke things off because she was too young for marriage. She was also rumored to be romantically linked to Helio Castroneves, but denied involvement with the dance champ.

Since then, Hough says she hasn't been dating a whole lot, and feels "different" from the people she meets in the biz. "I don't drink, smoke or do drugs, so those things immediately separate me," she says.

Giving a small glimmer of hope to the millions who ogle more than her dance moves, she adds, "It's all very enticing, though." - Anna Dimond

" Julianne and Helio Dancing Around Romance Talk
" Dancing Champ Helio No Longer Paired with Fiancée