pThe Kardashian-Jenners are soaking up the sun in Costa Rica and both Kourtney and Kylie have already posted stunning bikini pics.pbr bWatch the video above and don’t forget to subscribe to our ba href=" Channelbab!bpbr pThe post Kylie Jenner And Kourtney Kardashian Battle It Out For Hottest Sister In Costa Ricaa appeared first on Star Magazinea.