Keeping up with the Kardashian cast club?

Khloé Kardashian took to Instagram on Tuesday to share snaps of daughter True, 5, and nephew Psalm, 4, both proudly showing off their arm casts while holding hands.

“Summer 2023,” she captioned the pics. “Cousin cast club Trampoline and monkey bars They had a ball this summer.”

Fans were quick to chime in with support.

“OTT summer fun, is my guess!! But those smiles tell me it was worth it ❤️❤️❤️❤️,” one person wrote.

Another noted, “Now that’s how you KNOW they had an amazing/memorable time!”

“You did not have loads of fun if you didn’t end up in a cast ???????????? Risk = The most fun ever!!! ❤️❤️❤️ Hope they feel better soooon!!” a third added.

But the two youngsters aren’t the only members of the Kardashian clan to break bones this summer.

On Monday, Kim revealed on her Instagram Story that she had been “out of the gym [for] a few weeks” after breaking her shoulder and tearing a tendon.

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“So we are starting our rehabbing today and our workouts because I gotta get back in the gym,” the Skims mogul said, while pointing the camera at her trainer, Melissa Alcantara, who had the “same thing happen to her.”

“Nothing is going to keep me down,” Kim added.

The “Kardashians” star, 42, hid her injury well as just last month she shared a series of photos of herself executing a cartwheel in a white T-shirt and black thong on a beach.

Khloé, 39, shares daughter True with ex Tristan Thompson. They’re also parents to son Tatum.

Earlier this month, the Good American co-founder threw an over-the-top party to celebrate the toddler’s first birthday.

The lavish, space-themed extravaganza featured a life-size moon and star made out of blue and white roses, a slime-making table and a playdough station.

Meanwhile, Psalm is the youngest child of Kim Kardashian and ex-husband Kanye West. The former couple also shares North, 10, Saint, 7, and Chicago, 5.