Sexy Hollywood star Jessica Alba has reportedly just learned she's set to join Jennifer Lopez and is to become a mother to twins. The actress is the latest celebrity set to join the current twins trend, which was started by Julia Roberts and Marcia Cross and now reportedly includes Angelina Jolie as well. Alba reportedly is so excited about the baby news, she has been letting all her friends know, and one source has blurted the baby exclusive out to the National Enquirer, along with the due date, June 8. One friend tells the publication, "Knowing that she's going to have twins has turned Jessica's life upside down. She and boyfriend Cash Warren have had to scrap plans for a one baby nursery and start all over again." Although the couple know they're set to become parents to twins, they have no idea about the sex of their babies. The source adds, "They're not sure whether they want to know the sex of the babies now or wait to be surprised."