True Thompson loves bouncing on trampolines! The adorable one-year-old daughter of Good American designer Khloe Kardashian, 35, recently bounced around with her pink-haired Trolls dolls, however this time she invited her cousins to join her! Kim Kardashian‘s adorable daughter North West, 6, and older sis Kourtney Kardashian‘s daughter Penelope Disick, 7, were snapped together as they jumped around on a trampoline. Proud mom Khloe posted the Boomerang clip to her Instagram stories on Feb.