Baby Thompson is having a great time.

Khloé Kardashian hasn’t said what she and Tristan Thompson’s son’s name is yet, but yesterday she posted a Boomerang on Instagram Stories of her 4-year-old daughter True pushing her new brother in a $4,900 Dior stroller.

The little girl, who was wearing a gray sweater dress with a neon green Balmain logo ($289, now $202), proudly pushed the baby back and forth on a patio in the video, but baby Thompson couldn’t be seen because the blue Dior-print hood of the stroller covered him.

The baby isn’t the only Kardashian child to be rolling around in Dior these days. Kylie Jenner got the same stroller at her baby shower, along with a matching diaper bag, before she had her son in February.

Cardi B also has designer wheels. In a January Instagram photo, she posed in head-to-toe Dior next to the bassinet and stroller combo that costs $7,700.

True didn’t want to be left out of the Dior fun, so for her 4th birthday party in April, she wore a look by the French fashion house. Her dad also gave her a $25,000 diamond necklace.

The new Thompson baby was born in July through a surrogate. His birth was shown on the first episode of Season 2 of “The Kardashians.”

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Kardashian, who is 38 years old, waited until Halloween to post a picture of her new baby on social media. In an Instagram post on Halloween, she showed a glimpse of her kids’ cute Halloween costumes.

“Owlette and Tigger aka True and Baby Brother,” she posted, adding, “Shhhhh…. But I can’t wait for Halloween to be over.”

After Thompson’s cheating scandal with Maralee Nichols, Khloé is not back with Thompson. However, the two are still co-parenting their two children, and if this sassy stroller is any indication, they’re doing it in style.