Reality star, Kim Kardashian who is currently on a joint family vacation to Costa Rica with her sister Kourtney Kardashian and their kids, put her banging body on display during a boat day.

The 38-year-old mother of four flaunted her famous backside in a very tiny and risque one-piece while spending time with her kids before going for a ride on a jet-ski on Friday.

Kourtney Kardashian and Scott Disick’s kids; Mason, nine, Penelope, six, and Reign, four, were also spotted on the boat trip.