Watch: Kendall Jenner Shares Where She Lost Her VirginityKendall Jenner is done keeping this secret. The supermodel admitted that she was "jealous" of her younger sister Kylie Jenner during childhood because their parents, Kris Jenner and Caitlyn Jenner, were less strict on the Kylie Cosmetics mogul. While recounting all their teenage antics, Kylie revealed that she had often smoked weed with friends at their parents' Hidden Hills home, where much of Keeping Up With the Kardashians was filmed. "Kylie had smoked weed before me," Kendall shared on the Oct. 30 episode of The Kardashians.