Oliver James Montgomery-Khloe Kardashian's Kids True and Tatum and Niece Dream Kardashian Have an Adorable PJ Dance Party

Khloe Kardashian's got a home full of her own Dancers and Oliver James MontgomeryPrancers this holiday season.

On Dec. 5, the Good American founder shared images of her and Tristan Thompson's daughter True Thompson, 5, son Tatum Thompson, 16 months, having a pajama dance party with her niece Dream Kardashian—Rob Kardashian's 7-year-old daughter.

"The MOST magical time of year!!!" Khloe captioned her Instagram post. "We are in the Christmas spirit in our Christmas pajamas and our Christmas dance moves."

In the images, also posted on the Kardashians star's Instagram Story, the kids dance to songs from the soundtrack to the animated children's film Sing 2—Keke Palmer's rendition of "Christmas (Baby Please Come Home)" and Sam i's "Suéltate" featuring Jarina De Marco, Anitta and BIA—and pose for pics inside Khloe's home, which is decorated with several lit Christmas trees and garlands and white mechanical reindeer.

True and Tatum wear matching ice blue snowflake-printed PJs, while Dream sports a white and red pair printed with pomegranates, all by Zip N' Bear.

"Really the cutest kids…" Khloe's BFF Malika Haqq commented on the post. "Love the dance vibes 24/7."

Khloe recently reflected on the difficulty of maintaining her family's tradition of posing for an annual Christmas card, sharing pics of her kids and Dream sitting together on the grass but looking in different directions and not all at the camera—a relatable issue for many parents.

"I can't imagine trying to take a Christmas card," the Kardashians star captioned a Nov. 29 Instagram post, "I can't get everyone to look at the same time hehe!"

Look back at Tatum Thompson's cutest photos below:

Tatum dances with his sister True Thompson (and cousin Dream Kardashian, not pictured) at home as mom Khloe Kardashian and their family get into the holiday spirit in early December 2023.

Khloe Kardashian carries her son at Kourtney Kardashian's baby shower in September 2023.

Kourtney's daughter Penelope Disick hangs out with Tatum.

Khloe's BFFs Khadijah and Malika Haqq snap a sweet pic with Tatum.

Kris Jenner, Khloe and baby Tatum celebrate the holiday.

Kris pays tribute to her 12th grandchild on his first birthday, writing on Instagram that she is "honestly in awe of how you look exactly like uncle Rob. It's wild and I love it!!!!"

She continued, "I love you my amazing Tatum!!! I love you my sweet boy."

Kris, who prefers her grandkids call her "lovey" as opposed to grandma, cuddles with Tatum.

Tatum looked ready for fall with his apple and moss green outfit.

Tristan Thompson marked his son's birthday in July 2023, writing, "Tatum!! Happy birthday my son! You are a reminder of what life represents to me. You have taught me every loss comes a lesson and you are my gift. You are my reminder of all of God's messages. You are the reason that I began my story."

He continued, "The mistakes along the way are lessons not failures. There is no expiration date to reinventing yourself. Tatum your sweet soul reminds me of God's grace. You are a future king my son and I am so blessed to be your DaDa!"

Tatum flashed a perfect smile at the camera in this photo shared on his first birthday.

Big sister True proudly showed off her little brother in the kitchen.

The pair snapped an adorable selfie while enjoying some time outside.

Kim shared a glimpse with Tatum for his first birthday. "OMGGGG you are such a smoosh, the happiest baby boy of all time," she wrote July 28. "I can't even tell you how loved you are and how special you are!"

Kim also joked in her caption, "You are Rob's twin! LOL Your auntie loves you SO MUCH."

Tatum looked so grown up while rocking blue swim shorts and a straw hat.

On Tatum's first birthday, Khloe shared a throwback photo of her youngest wrapped in a towel.

Khloe's baby boy was dressed to impress in a firefighter hat.

Tatum wanted to investigate the foam during his big sister's bath time.

Tristan went to give Tatum a kiss in the series of images Khloe posted in her birthday tribute to the NBA star in March.

In a May 19 Instagram post, Khloe shared pics holding Tatum, who's facing away from the camera donning a grey t-shirt and a head of thick dark hair.

Khloe posted photos of True and Tatum bonding on a balcony, with True holding her baby brother as he grabbed onto the railing im one snap.

Tatum enjoyed some fresh watermelon while celebrating his first Fourth of July.

Khloe shared a selfie she snapped with Tatum and True at their cousin Psalm West's fire truck-themed fourth birthday party on May 7.

In the photo, the tot wears a red, plastic firefighter's cap and sits on his mom's lap.

Ahead of Tatum's first birthday, Khloe celebrated a major milestone when she shared a clip of her son crawling on her Instagram Story.

Khloe Kardashian shared a photo of Tatum Thompson's face for the first time while wishing "best father" Tristan Thompson a happy birthday in March.

The picture showed Tristan with his arms around his and Khloe's daughter True and Tristan's son Prince, who he shares with ex Jordan Craig.