VIDEO : Kourtney Kardashian and Kylie Jenner Strip Down in Sexy Snapchats -- See the Pics!

Two of the Kardashian and Jenner sisters took to Snapchat on Friday to work what their mama gave them. Kourtney Kardashian was first to share a sexy snap on the app, posting an aerial pic of her neckline. She captioned the racy pic "Makeup view," before climbing into a helicopter. Meanwhile younger sister Kylie Jenner, sported nude undies as she showed off her toned tummy on Snapchat. Kourtney and Kylie are leaving very little to the imagination on Snapchat.