Kourtney Kardashian flaunts racy image of derriere

Los Angeles: Reality TV star Kourtney Kardashian shared a racy photo of her derriere in a string bikini bottom online. "Sunday funday," Kardashian, 36, captioned the photograph, reports people.com On Friday, the mother-of-three joined up with her former husband Scott Disick to take their two eldest children, Mason and Penelope, to Universal Studios.  On Saturday, she joined up with Disick again for a belated birthday celebration for younger brother Rob Kardashian, who turned 29 on Thursday.  The former couple were joined by the Kardashian-Jenner family later for a family get together.