Inside Saint West's Dinosaur-Themed 4th Birthday Party

Kim Kardashian and Kanye West's eldest son Saint West and his siblings, cousins and friends enjoyed pretending to be dinosaurs for a day.

By Corinne Heller 07 Dec, 2019 10:49 PMTags

Welcome to Saint West's Jurassic World!

Kim Kardashian and Kanye West's eldest son and second-eldest of their four kids celebrated his fourth birthday with his family on Saturday at a Jurassic Park-themed party.

Kim and sister Khloe Kardashian posted adorable photos and videos from the bash on her Instagram page, including a clip of the guest of honor wearing a carnivorous dinosaur mask handed to him by big sister North West, 6, and momentarily scaring his 1 and 1/2-year-old little sister Chicago West.

"Don't be scared, Chi-Chi, it's just your brother with a mask," Kim tells her.

"It's just Sainty," Saint says.

The kids and their guests, including cousin True Thompson, Khloe's 1/2-year-old daughter, enjoyed jumping around in a dinosaur claw-printed bounce house. Even baby Psalm West got in on the fun!

The outdoor bash was decorated to look like a jungle, complete with a nest of fake dinosaur eggs, lush greenery and a fog machine, which intrigued little True.

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Saint West's Cutest Pics

There was also a "Jurassic Jewelry" station, and the kids got to pretend to be dinosaurs by wearing colorful claws and tails.

Guests enjoyed a slew of dinosaur-themed desserts, as well as a colorful round birthday cake decorated with M&Ms.

See photos from Saint's birthday party:

It's Party Time

Saint West arrives at his dinosaur-themed fourth birthday party.

Welcome...

True Thompson walks through the fog...

Posing for the Camera

The camera loves Chicago West!

Birthday Boy

Saint poses near a sand box.

Welcome to the Jungle

...we got fun and games...

Smiling Saint

The birthday boy is all smiles in his dinosaur mask!

Fun With the Cousins

Chicago West and True Thompson play in the bounce house.

Sibling Love

Chicago West and baby brother Psalm West cuddle in the bounce house.

Whoa

Yikes!

Always a Good Time

True Thompson relaxes in the dinosaur ball pit.

Thirsty?

Anyone for some Raptor Juice?

More Refreshments

Beigenets, Kim Kardashian's favorite, were also on the menu.

Cake Time

Not dinosaur-themed, but still delicious.

Sweet Treats

Get your dinosaur desserts!

Rawr!

Scary!

Uh Oh...

...looks like more guests will join the party soon...

Watch Keeping Up With the Kardashians on Sundays at 9/8c only on E!