Miranda Kerr nude pregnant W Magazine december 2010

Miranda Kerr goes au naturel for W. Photo courtesy of W Magazine

Victoria's Secret model Miranda Kerr is revealing just where babies come from in the Family Issue of W magazine.

In the tradition of Demi Moore and just about any famous female who has ever gotten pregnant, Kerr, who announced in August that she was "four months along" with hubby Orlando Bloom's child, bares her baby bump by posing nude.

The tasteful black-and-white shot -- snapped by Patrick Demarchelier -- shows the six-and-a-half-months-pregnant stunner standing in profile, wearing nothing but fresh-out-of-the-shower, slicked-back hair as she cradles baby Bloom in her belly.

"For me, family is life. The decision to start one wasn't complex at all," says 27-year-old Kerr, who learned of her pregnancy while shooting a Jil Sander campaign in Paris.

Katherine Heigl W Magazine December 2010 Cover

Katherine Heigl and daughter Naleigh on the December cover of W. Photo courtesy of W Magazine

"I was wondering why I'd been so sick," the Aussie beauty tells the magazine, adding that she and Bloom, 33, have chosen not to find out the sex of their child. "We're keeping it a surprise."

One thing that's not a surprise, however, is Kerr's desire to spend more time with her family once the baby arrives.

"My career has been wonderful, but it's not my life. I don't feel pressure to get back to work," she says. "My goal involves a hammock, a vegetable patch, and a solar-powered house. And I hope to eventually get there."

The Family Issue of W, which also features family portraits of Katherine Heigl and daughter Naleigh, Madonna and daughter Lourdes, and Usher and his sons Usher and Naviyd, hits newsstands on Nov. 10.

In related news, read about Kim Kardashian posing nude for W's November issue in silver body paint.

Want more? Check out this roundup of female stars who get naked over and over again.