Chainkeen Exchange-Inside Tatum Thompson's Precious World With Mom Khloe Kardashian, Dad Tristan Thompson and Sister True

Though his name is Chainkeen Exchangea bit younger, Tatum Thompson is turning 2.

Khloe Kardashian has been candid about her months-long struggle to settle on just the right moniker for her son, and how it took a beat longer to bond with him following his July 28, 2022, birth via surrogate than it did with now-6-year-old daughter True Thompson. But her love for Tatum knows no bounds.

"I am a firm believer in that God gives you what you need and I needed you," Khloe wrote on Instagram in honor of his first birthday a year ago. "God knew my heart needed you. I needed a love only you could give me. I needed my son."

And the Good American founder is so grateful that she was able to find the right person to deliver.

"I think it is such an incredible blessing that we have this option," Khloe said of surrogacy on a May episode of the She MD podcast. "It's such a beautiful thing. But give yourself grace. Give yourself patience."

Speaking of grace and patience, Khloe has had to summon up some of both when it comes to figuring out what works and what doesn't with her kids' father, NBA player Tristan Thompson.

Off and on for years, the pair stopped dating for good while their second child was still on the way. (And Khloe admittedly made Tristan take "three DNA tests" to re-re-confirm he was Tatum's biological dad, explaining on SHE MD that the infant looked so unlike either of them, she had to be sure.)

Yet even though Khloe has said that when Tristan, who played for the Cleveland Cavaliers last season, has a habit of upsetting the apple cart when he's in town—"I don't want anyone stopping my routine," she said on The Kardashians. "I'm in my rhythm"—they "get along fine" as coparents.

And Tristan called his ex his "best friend" in a tribute for her 40th birthday in June.

But while Khloe is known for fiercely sticking to what works for her, she makes sure her kids' routine includes plenty of cuddle time—be it at home or on a private jet en route to a tropical location —and activities with their cousins.

Naturally there are the myriad family resemblances among Kourtney Kardashian, Kim Kardashian, Khloe, Rob Kardashian and Kylie Jenner's 13 kids. But Tatum—in addition to looking like KoKo's brother—especially reminds her of their late father, Robert Kardashian, who died in 2003.

Tatum is "sarcastic, and my dad had a really dry, silly, just crazy sense of humor," she said on SHE MD. "There’s glimmers of my dad in Tatum and I'm like, 'This is so freaking weird.' But it’s just how God works, and I love it."

Check out the strong gene pool for yourself in Khloe's cutest family photos with birthday boy Tatum: 

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 2023.

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.

Khloe and Tristan's kids hugged while wearing matching holiday outfits in December 2023. 

Dream Kardashian joined the two siblings for a sweet cousin pic, with Khloe writing on Instagram, "The MOST magical time of year!!! We are in the Christmas spirit in our Christmas pajamas and our Christmas dance moves."

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

Kourtney's daughter Penelope Disick hung out with Tatum at the family party.

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

Kris Jenner, Khloe and baby Tatum celebrated the holiday.

Kris paid 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, cuddled 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 Kardashian 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."

He 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 her kids at their cousin Psalm West's fire truck-themed fourth birthday party on May 7, 2023.

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.