And just like everyone else, these ladies want their little bundles of joy to have the absolute best of everything.
As it turns out, both girls visited the same West Hollywood baby boutique (Bel Bambini) to create their registries.
So, what kinds of things were they each checking out?
Jessica, who already has a child, presumably already has all of the bare necessities.
However, there are some new things she's going to need since her first child, Maxwell, is a girl and we know she's expecting a boy.
An onlooker told People magazine that Jessica was checking out the toys as well as boys clothing by Splendid, Jean Bourget and Little Marc Jacobs.
Kim, on the other hand, is starting from scratch being as this is her first child.
People reports that she was looking at items like a Stokke Sleepi crib (like this one, that retails for $800!), some toys and other stuffed animals.
Kim's color scheme unfortunately doesn't give us any hints on baby Kimye's gender as the reality TV star stuck with basic black and white.
Of course, the fashionista did check out some designer duds for her little bundle of joy. Kim was spotted looking at clothes by Baby Dior, Fendi, Chloé and Roberto Cavalli.
Sounds like both of these babies are going to be little style superstars just like their moms!
Gallery | Who's Got Style? Kimye Does!