‘7th Heaven’ Star Mackenzie Rosman Poses in Sexy Lingerie

Little Ruthie is all grown up! The 23-year-old Mackenzie Rosman, who played the youngest Camden on the long-running series “7th Heaven,” stripped to her sexy undies for Maxim's September issue and talked about when co-star Jessica Biel did the same.

Biel -- who played Ruthie's big sister, Mary -- posed topless on the cover of Gear in 2000. At the time, Biel was 17 and Rosman was 9. "I remember that. It was a big deal," Rosman told Maxim. "The magazine was banned on set, I think by orders of Aaron Spelling. I sneaked a peek at it, though. It was racy gossip amongst the women of '7th Heaven.'"

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When it comes to dating, Rosman said she values "manners" above all else. "Like, just be respectful. I don't deal with the whole bad boy who doesn't call you. That doesn't interest me at all, and I just look the other way."

[Photo credit: Carlos Nunez/Maxim]

Are there any “7th Heaven” drinking games? Rosman laughed, “No, but I would like to see one. You could drink whenever Ruthie rolls her eyes or when Lucy squeals.”