Kim Richards Adorably Cradles Pregnant Daughter Brooke Wiederhorn's Baby Bump

Getty Images

Kim Richards can't wait to be a grandma!

The Real Housewives of Beverly Hills star attended a baby shower for her niece, Nicky Hilton, on Friday, and following the event, she took to Instagram to share an adorable photo of her posing with another mom-to-be -- her 30-year-old daughter, Brooke Wiederhorn.

WATCH: Kim Richards' Daughter Brooke is Pregnant!

In the snap, Kim, who looked lovely in a white dress, adorably placed her hand on Brooke's baby bump as the two flashed big smiles.

"A mothers joy begins when new life is moving around inside..." the 51-year-old reality star captioned the sweet pic, adding, "and those playful kicks that remind her she's never alone... NANA waits for those moments too."

Kim shared another photo from the lavish shower, which showed Nicky and Brooke bump-to-bump. Kathy Hilton got in on the action, too, standing behind her glowing, pregnant daughter.

"How surreal ... Both our little girls are expecting...making my sister and I GRANDMA's ...!!" Kim captioned it.

WATCH: Blake Lively Finally Shows Off Her Baby Bump at Cannes

Nicky and Brooke weren't the only ones to give fans a peek at their burgeoning bellies this weekend, however. On Saturday, Blake Lively stepped out in Cannes, Frances, showing off her baby bump in a baby blue Atelier Versace chiffon gown. The Gossip Girl alum, who is pregnant with her second child with husband Ryan Reynolds, looked stunning in diamond jewels and strappy Christian Louboutin heels, which perfectly completed her red carpet ensemble.

To hear more on all the fabulous outfits she's rocked during the 2016 Cannes Film Festival, watch the video below.