Roxy Olin, wearing a bikini with green bottoms and purple top, frolicked in the Atlantic Ocean at the Fountainbleau Hotel in Miami Beach. She walked back to her hotel wearing a tank top that reads “Brunettes Are the Best.” Roxy recently twittered that Going back to la next week to film Brothers and Sisters which is directed by her father Ken Olin and also stars her mother Patricia Wettig! Now that’s keeping it all in the family…