Julia Roberts, hubby trying to 'expand their brood'

Washington, Aug 8 : Hollywood actress Julia Roberts is trying hard to expand her brood with cameraman hubby Danny Moder, say her pals.

Just a year after welcoming their third child, the 'Erin Brockovich' star and husband Moder are desperate to have another child.

"Roberts and Moder are currently trying for a baby while the actress promotes her new movie Duplicity - and hope to conceive by the end of the summer (08)," Contactmusic quoted a pal of the couple, as telling the National Enquirer.

It has been said that both Robert is desperate to add a second daughter to their sweet family.

Meanwhile, Roberts has also lent some parenting advice to colleague Brad Pitt for his newly born twins.

ANI