03/03/2009 05:12 am ET Updated Dec 06, 2017

Gwen Stefani Shows Off Baby Zuma

it's no surprise that Gwen Stefani would be kickin' it at the park with Tobey Maguire's wife (and the daughter of Universal Studios' CEO), Jennifer.

And, of course, it's only natural that their kids would become playmates, right? How cute do little Zuma and Ruby look together?

See more pictures

Read more on X17