Jessica Simpson & Kim Kardashian's Daughters Are Best Friends

Inside Kim Kardashian's daughter North's friendships with A-list kids including Jessica Simpson's daughter Maxwell

Jessica Simpson and Kim Kardashian's daughters are best friends

Jessica Simpson and Kim Kardashian's daughters are best friends

Jessica Simpson's Daughter Maxwell and Kim Kardashian's Daughter North Are BFFs

Kim Kardashian And Jessica Simpson's Kids Are BFFs, But Are The Celebrity Neighbors Close?

Jessica and Ashlee Simpson's daughters match at wedding

Jessica Simpson says her daughter Maxwell is 'best friends' with Kim Kardashian's daughter North

Kim Kardashian's daughter North, 8, & niece Penelope, 9, help Jessica Simpson's kid Maxwell open gifts at 10th birthday

North West caught 'slapping' Jessica Simpson's daughter Maxwell, 10, on party bus for her 10th birthday bash

Jessica Simpson's Daughter Flew Private with North West to See Katy Perry

Jessica Simpson models SKIMS from friend Kim Kardashian whose daughters are best pals