“She seems like a really good mom,” Deschanel explains. “It's fun to talk about kids once you have them. I think when you don't have kids you're like, 'Why are they talking about their kids so much?' And then when you do have one you're like, 'All I want to do is talk about my kid!'”
Although Fox, 29, who has two children of her own, admits that there’s not much left to teach the 35-year-old Elf actress.
“We've talked a lot about how when you have a new baby that's all you talk about,” she told ET. “We've talked about the birthing process and diapers and things like that. I didn't give her any advice! She's read every book already.”