Kourtney Kardashian tweets a cheeky little selfie

Kourtney Kardashian posted a cheeky little selfie on Instagram yesterday, showing off the results of her grueling workouts.

Usually the shy sister, Kourtney proved she’s more than a match for her younger sis as she flashed her bum in a peach of a selfie.

Mum-of-three Kourtney grabbed a quick snap of her pert bottom as she sunbathed in a leopard print bikini.

The reality star flaunted her impressive curves including a serious amount of side-boob as she lounged around the pool.