Brooke Burke, pregnant with her fourth child, is one celeb who never ceases to amaze me with how fast she is back into a bikini postpartum. With Brooke, I think a lot of is it good genes (much like Keri Russell), but she's no couch potato either. Here's more:

"I’ve been doing Pilates for eight years. I actually started with my first pregnancy. I’m a big believer in staying fit during your pregnancy," says Burke, 36. "I know a lot of women are a little afraid to work their abs, or are afraid of core work, but I think it supports your back and I think it helps for an easier delivery and it makes us feel good," says the actress. "The more fit you are during your pregnancy, the quicker you're going to bounce back. I probably started up two weeks after delivery and I felt I could handle that."

She's telling the truth too. Check out old pictures of Brooke when she was about eight months pregnant doing BOSU work!

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