Tristan Thompson is focusing on his MVPs.
After all, the basketball player and ex Khloe Kardashian celebrated their 3-year-old son Tatum Thompson's birthday with their daughter True Thompson, 7, as well as his and ex Jordan Craig's 8-year-old son Prince Thompson.
Tatum and Prince, matching in beige T-shirts, were all smiles alongside True and their cousin Dream Kardashian, 8—who Khloe's brother Rob Kardashian shares with ex Blac Chyna—donning baby pink. The 34-year-old also shared a snap of the birthday boy digging into his cake with his older brother by his side.
"Big hugs and kisses for my little Tatum's Bday," Tristan—also dad to Theo, 3, with Maralee Nichols—gushed in the July 30 Instagram post. "I Love you forever young king."
Although he gave a glimpse into his toddler's Mickey Mouse-themed celebration, he teased, "This just the beginning more pics to come."
Meanwhile, Khloe documented more of Tatum's birthday soiree, where guests were welcomed with a colorful balloon arch that read "Tatum's Clubhouse," before making their way inside.
The Good American founder kept the theme going as she laid out a festive food station, complete with Mickey Mouse-shaped waffles, a Mickey and friends-themed Charcuterie board and several trays of desserts.
The festivities also included a craft station, Stoney Clover goodies and surprise appearances from Mickey, Goofy, Pluto, Donald Duck and more.
As Khloe and Tristan celebrated their son's sweet milestone, his grandma Kris Jenner couldn't help but honor Tatum.
"You are such a light in all of our lives and bring so much joy, laughter, and love to our family," she wrote on Instagram July 28. "From the moment you were born, you've had the sweetest spirit and the most beautiful little soul, and I see so much of Rob and your grandpa Robert in you!"
"You are surrounded by so much love, especially from your mommy and big sister, who adore you beyond words," she continued. "I thank God every day for you, sweet boy, and I can't wait to see all the incredible things you'll do and become. I love you with all my heart. Happy birthday Tatum!"
To keep up with Tristan and Khloe's kids, read on.
Hot Diggity Dog
Tristan shared the sweetest photo at Tatum's 3rd birthday part in July 2025, with the birthday boy posing alongside True, Prince and their cousin Dream.
Let Them Eat Cake
Prince and Tatum were all smiles as they shared a slice of cake during the toddler's 3rd birthday celebration.
"Swaggy T"
In April 2025, Khloe shared an adorable snapshot of her and "Swaggy T."
Hearts Full of Love
So much love in this precious pic from Valentine's Day 2025
Cousin Time
True and Tatum were all smiles as they hung out with cousin Dream Kardashian in January 2025.
Brother-Sister Bond
Just look at this precious siblings pic from December 2024.
#BabyRob
"Fun fact," Khloe wrote on Instagram in November 2024 alongside this photo of Tatum, "this is my brothers Boy Scouts hat #BabyRob #twins."
Purr-fect Pals
Tatum bonded with the family cat, Grey Kitty, in this sweet video Khloe shared on Instagram in January 2024.
Christmas Spirit
Khloe shared a look at her kids in matching holiday PJs in December 2023, writing, "The MOST magical time of year!!! We are in the Christmas spirit in our Christmas pajamas and our Christmas dance moves."
Selfie With Mom
Khloe Kardashian shared this pic of herself with daughter True Thompson and son Tatum Thompson in August 2023.
"Tristan Jr" & "Rob Jr"
"I just can't handle it!!!!! You with Tristan Jr & Rob Jr," Kim Kardashian commented, to which Khloe responded, "@kimkardashian facts!!! Lol"
Father-Son Moment
Dad Tristan Thompson shared his first photos of Tatum for the little one's first birthday in July 2023.
Birthday Love
Khloe wished Tristan a happy 33rd birthday in March 2023, sharing this photo of the NBA star with their two kids on Instagram Story.
Sibling Hugs
True hugged her brother on the trampoline.
Family Forever
Tristan's oldest child Prince, who he shares with ex Jordan Craig, spent some time with True and the baby.
Sibling Love
Khloe and Tristan's daughter True carried her little brother in her arms.
Sweet Kicks
Khloe snapped a photo of her son's adorable sneakers.
Mini Milestone
Khloe shared a video of Tatum crawling in July 2023 ahead of his first birthday.
Happy 4th!
Khloe's baby boy Tatum was in full summer mode for the Fourth of July 2023.
Welcome to the World
Khloe and Tristan's baby boy made his TV debut on the season two premiere of The Kardashians.
Mother-Son Moment
Khloe cuddled her baby boy—rocking a blue hooded onesie—during The Kardashians season three finale.
Doting Mom
Khloe brushed Tatum's hair during a sweet moment on The Kardashians alongside Tristan.
Mini-Me
According to grandma Kris Jenner, Tatum looks just like uncle Rob Kardashian.
Meeting Grandma
On the show, the baby boy also spent some quality time with Kris, who prefers to be called "Lovey" by her grandchildren.
Baby Boy
He made a brief appearance on a July 2023 episode of The Kardashians.
Playtime
True shared a laugh with her parents on the trampoline.
Like Father, Like Son
The basketball player snuggled with his son.
Little Rider
True joined Khloe and Tristan on a car ride.
All Smiles
Tristan flashed a smile as he held True and the newborn in his arms.
Girl Dad
Khloe and Tristan celebrated Thanksgiving 2018 with their daughter True.