The two families caught up with each other at Nobu restaurant in Malibu on Sunday, reports aceshowbiz.com.
Kim and Kanye also brought their children, daughter North and son Saint West.
Teigen shared on Snapchat a video showing her daughter being cradled and held by Kim and Kanye during their daytime outing.
She also shared a photograph of Kim holding Luna. It is captioned “Auntie”.
Teigen and Legend welcomed Luna on April 14.