Action girl Rihanna takes to the waves on a jetski... wearing a string bikini

By DAILY MAIL REPORTER Action girl: Rihanna confidently whizzes around on a jet ski as she holidays in BarbadosGrowing up in Barbados, Rihanna is certainly no stranger to life on the beach.And the singer showed off her prowess at the handles of a jet ski today, masterfully charging around on the water.The 22-year-old wore a tiny string bikini for her adventure, sensibly belting on a lifejacket ...