Kylie Jenner hosted a Halloween dinner party to celebrate her latest cosmetics collection, inspired by Nightmare on Elm Street. Kim Kardashian, Kourtney Kardashian and Khloe Kardashian all attended the spooky bash with their kids, including North West, Saint West and Mason Disick. Their mom, Kris Jenner, and her boyfriend, Corey Gamble, also were there. The family shared glimpses of the festivities inside, featuring opulent decor and even an actor who posed as Jason from Friday the 13th. The 24-year-old beauty mogul and her beau, Travis Scott, also took their daughter, Stormi, to the Nights of the Jack Halloween event to continue the fun.