Roar! Kim Kardashian Celebrates Son Saint's Fourth Birthday with Elaborate Dinosaur-Themed Bash

Claudia Harmata

A prehistoric bash!

On Dec. 7, Kim Kardashian West and her family celebrated son Saint‘s fourth birthday with an epic dinosaur-themed bash. Saint (who is the oldest son and second-oldest child of the Keeping Up with the Kardashians star, 39, and Kanye West) turned 4 two days earlier.

In addition to the rest of the reality star’s children — daughters Chicago, 23 months, and North, 6½, as well as son Psalm, 7 months — the party was attended by Khloé Kardashian and her 20-month-old daughter True, who was filmed jumping along with her cousins inside a large bounce house in a sweet Instagram Story video shared by the Revenge Body host.

Kardashian West also shared several snaps of her children playing together at the party — including one video that showed the birthday boy wearing a festive dinosaur mask.

“Look at Saint as the dinosaur,” the proud mama called out, before telling Chicago, who began to move away, “Don’t be scared. It’s just your brother with a mask.”

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Kim Kardashian West and son Saint | Kim Kardashian/Instagram
Saint West | Kim Kardashian/Instagram
Saint West's birthday party | Kim Kardashian/Instagram
Saint West's birthday cake | Kim Kardashian/Instagram
Saint West's birthday party | Kim Kardashian/Instagram

RELATED: Saint Is 4! Kim Kardashian Wishes Son Happy Birthday with Touching Instagram: “So Much Joy”

Prior to the big party, Kardashian West gave her followers a peak into the extravagant affair on her Instagram Story, documenting the set-up, as well as the bright, candy-colored birthday cake, in a series of videos.

“Look guys! Saint’s dinosaur party is today,” the KKW Beauty mogul and mother of four said. “How cute is everything? We are still setting up.”

All the party treats were decorated with little dinosaur claws or eggs, and guests could stop to get “Raptor Juice” after walking through the “dinosaur cave.” There was also a dinosaur ball pit for children to play in as well as multiple DIY craft stations, including a “Jurassic Jewelry” stop, as well as “Dino Domes,” where children could make their own dinosaur habitats.

Saint West's birthday party | Kim Kardashian/Instagram
Saint West's birthday party | Kim Kardashian/Instagram
Saint West's birthday party | Kim Kardashian/Instagram
North West | Kim Kardashian/Instagram
Chicago (L) and Saint West | Kim Kardashian/Instagram

RELATED GALLERY: From Fairies and Unicorns to Fortnite and Tarzan: The Kardashian Kids’ Best Birthday Party Themes

The party also had a large dig site “where we are all going to hunt for fossils, and you have to put on all your gear,” Kardashian West explained.

“I bet we’re gonna have fun,” she said to Saint, who pointed out a fossil he had found.

The reality star shared another collection of images from her son’s big day to Instagram on Tuesday, which gave a closer look at some of the details and featured an appearance from West, 42, and Kardashian West’s grandmother, Mary Jo “M.J.” Houghton.

“Kanye and I threw Saint the coolest 🦖🦕 dinosaur 🦕 🦖 party for his 4th birthday!!! He had so much fun!” she captioned the post, shouting out the mastermind behind the designs: “Thank you @mindyweiss.”

Saint West's birthday party | Kim Kardashian/Instagram
Kanye West and daughter Chicago | Kim Kardashian/Instagram
Saint West's birthday party | Kim Kardashian/Instagram
Saint West | Kim Kardashian/Instagram
Kim Kardashian West (L) and Mary Jo

RELATED: Kim, Kanye, North, Saint, Chicago and Psalm West’s Cutest Pics

On Thursday, the proud mother shared a sweet tribute to her oldest son on Instagram in honor of his birthday.

“I have no words to describe how much I love your smile and those curls of yours Saint!” she raved in the heartfelt post.

“You bring so much joy into my soul. You are so kind, loving and just so thoughtful and sweet!” she praised her second-oldest child. “I am so happy today if your 4th birthday and We get to celebrate how much you’ve grown!”

“Happy birthday my sweet sweet Sainty,” Kardashian West added, concluding with an adorable anecdote: “(When I say to him my sweet sweet Sainty, he says back to me my sweet sweet sweet sweet Momma, the best momma in the world and the only momma I ever want! HOW CAN YOU NOT MELT AT HIS SWEETNESS).”