Katie Holmes has Victoria Beckham, J. Lo, and Leah Remini, and Nicole Kidman has Naomi Watts as her best Hollywood mama pal. And as designated best friend, Naomi, who had her son Alexander last July, has been on hand to help Nicole during her pregnancy.

“Whenever you’re pregnant, you always call on your pregnant friends and compare notes,” Naomi told People magazine. “It’s what happens in friendship.” Though Naomi notes that even without her, Nicole would be just fine. When asked if she thought her fellow Aussie will be a good mother, Naomi exclaimed, “Of course!”, adding that, “She’s already a great mum.”

Naomi also gushed about her own son to People. “He’s turning pages in the book,” she said proudly. “He’s crawling and standing up. He can wave. I read Goodnight Moon to him every night.”