01/22/2011 AT 1:20 PM ET
“It’s fun having babies once again,” Russell, 59, the longtime partner of Hudson’s mother, Goldie Hawn, tells PEOPLE. “We just really like that. And it’s fun to watch them grow. It’s fun to see what they’re grasping.”
But the actor has a confession to make.
“I think secretly we’re all hoping for a girl,” he says with a laugh.