The Kardashians—and Jenners—are reaching new heights!
Turning the camera on herself, the pregnant E! star (who, understandably, refrained from jumping) introduced Kendall. "We're at a place called Sky High, and we're gonna see Kendall jump!"
The 17-year-old model gleefully bounced from one trampoline to the next, joking after one particular move, "I almost broke my back!" (Thankfully, she did not.)
Khloé also had some fun bouncing for videographer Kim, plunging herself into a foam pit, then quipping, "I'm stuck!"
Kim captioned her youngest sister's jumping, "Kylie flips out." The 15-year-old jumped—almost headfirst!—into the foam bit, eliciting a minor giggle fit from Kim.
Hanging out or bouncing around, these girls always have a good time.
For more on Kardashian-Jenner sister fun, tune in to Ryan Seacrest With the Kardashians: An E! News Presentation, premiering April 21 at 9 p.m.