Hollywood superstar Brad Pitt is desperate to have more children with girlfriend Angelina Jolie. The celebrity couple has two adopted children, MADDOX and ZAHARA, and a biological daughter, SHILOH NOUVEL, who was born in May 2006. But Pitt is keen to extend the family further. Speaking at the Palm Springs International Film Festival on Saturday (06JAN07) he said, "Of course. We'll let you know when we get there." Jolie recently told French magazine Gala that both she and Pitt were carefully planning their careers and incomes so they can afford to have a bigger family.