The cousins hung out together at home in the sweet clip posted on April 23 The Kardashian kids are having a pajama party! On April 23, Khloé Kardashian posted a cute video of her daughter True, 6, and 20-month-old son Tatum dancing in their pajamas at home with their cousin Dream, 7. “Nightly dance party craziness,” Kardashian, 39, captioned the …