Star magazine claims they've uncovered the identity of the surrogate mother, and she has a "checkered" past.
The magazine reports that Michelle Ross, 26, is the surrogate mother carrying SJP's twin girls. According to her ex husband, Joe Erker, Michelle is a little bit of a wild girl.
Joe Erker claims his ex is bisexual, and even has a tattoo on her wrist proclaiming it to the world.
Michelle herself admits, "I have had pink hair and tattoos and spiked collars. My favorite shoes are five-inch black spike heels which lace up the front."
SJP and Broderick are expecting their twins in just a few months, so we're hoping Michelle adopted to a healthier lifestyle before she became pregnant.