Kylie Jenner Grinds Butt on Tyga as they get cozy on the beach [PICS]

Reality star, Kylie, her sister Kendall, Tyga and their friends are celebrating her 19th birthday with a vacation in the Bahamas ...Kylie showed off her hot body and was even pictured grinding on her man's 'Timothy' at a beach in Turks.. Spot Wizzy's bae, Justine Skye in one of the photos below ..