Celebrity News Kourtney Kardashian’s Sexy Workout By Us Weekly Staff Updated on: October 15, 2017 5 Exclusive! Kourtney Kardashian’s Sexy Workout Shooting a fitness book in Malibu, Calif. March 17. Credit: Exclusive! Kourtney Kardashian's Sexy Workout Shooting a fitness book in Malibu, Calif. March 17. In order to view the gallery, please allow Manage Cookies For access to all our exclusive celebrity videos and interviews – Subscribe on YouTube! In this article Kourtney Kardashian