Pornstar Sophie O’Brien was pretty much happy doing porn when she saw a casting call for the hit TV show Game of Thrones. “They were looking for young women with natural breasts and no tattoos, who didn’t mind being filmed naked. So I immediately sent in a picture.” The beautiful redhead who has creamy pale skin fit perfectly into the role of Marei which was of a sexual nature. The show often features sexy characters who strip down nude and have a lot of sex, which is perfect for a beautiful pornstar like Sophie. She was a natural fit for the position. “They didn't need to show me how to do anything because that's how I earned my living," she said.