jessica-swimsuit-1.jpgW Magazine

jessica-biel-cover-230.jpgJessica Biel covers the April issue of W Magazine, and the 30-year-old actress chats about her rebellious years and how she's more of an outdoorsy type than a Hollywood beauty queen.

Of course, after looking at these pictures, it seems like Jessica doesn't have too much of a problem glamming it up -- no wonder JT put a ring on it!

It's no secret that Jess is in killer shape, so what does she think about her health nut image? "I think I need to destroy my reputation," she jokes. "This whole I’m outdoorsy, I’m really healthy—it’s too squeaky-clean. That’s going to be my new thing: Go dark and unhealthy. It’s time to be very, very bad."

On her early role on 7th Heaven, Jess reveals that she wasn't always on the best terms with producers due to her rebellious ways. "I cut my hair supershort and dyed it blonde," she says. "I had to apologize to Aaron Spelling for doing that. He wasn’t happy. When I turned 17 or 18, a really obnoxious friend sent a stripper to the set. I had to apologize for that too. The show was all about family values, and they took that position seriously. I was always apologizing."

Of course, her parents seemed to embrace her mischievous side when she was a child. When asked if she had dolls growing up, Jess tells the mag, "I did, but it was always, “Let’s play sex with Barbies!” My Barbies were usually naked. Once, I took their heads off, cut their hair, drew on their short, spiky hair with some markers, then stuck the heads on Christmas lights. Every year, we’d string our tree with those Barbie heads. It looked demonic. My parents were so cool—they saw it as a form of self-expression."