Kourtney Kardashian flaunts racy image of string bikini bottom

On Friday, Kourtney Kardashian joined up with her former husband Scott Disick to take their two eldest children, Mason and Penelope, to Universal Studios.

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.