Sarah Jessica Parker and Matthew Broderick are expecting twin girls through a surrogate this July, but the woman they have chosen has an interesting past.

Michelle Ross, 26, is the woman chosen by Sarah Jessica Parker and husband Matthew Broderick to carry their twins, it has been claimed. Michelle has previously acted as a surrogate mother for a New York gay couple and refers to herself as bisexual. Michelle’s ex-husband, Joseph Erker, told Star magazine she has children for other families but  neglects her own son, Brayden. Erker said the couple divorced in 2006 and Joseph was granted custody of the child.

According to Michelle’s MySpace page, she has a dark side that the famous couple might not be aware of. ‘I have had pink hair and tattoos and spiked collars,’ she wrote. Also, Michelle has a tattoo on one of her wrists of an overlapped pink and blue triangle, a symbol for bisexuality. On MySpace Ross identifies herself as ‘bi’, according to Star.

Michelle has refused to confirm if she is acting as a surrogate for Parker and Broderick. Her ex-husband did say Michelle wanted to become a surrogate to help people who couldn’t have children of their own.