Sophie Turner knows how to rock a bikini. The 23-year-old actress always looks stunning when she steps on the red carpet [1], but she practically makes ice melt when she slips into a swimsuit. Whether she's wearing a two-piece for a movie role or she's relaxing poolside [2] with fiancé Joe Jonas [3], these photos prove she's just as fiery as her Game of Thrones character, Sansa Stark [4].