The Royal Court Series by Fiona Tulle

Welcome to the Isles of Concordia... Callum is known as the playboy Prince with a heart of gold. He is no stranger to being caught in compromising positions but there is a curiosity burning inside him. One that will require the utmost discreetness. What starts out as an exploration of desires quickly heats up when the mysterious Cleopatra submits to his power. They can only keep their relationship hidden for so long. Will she be able to handle being Royally Bound?