Brooke Shields regrets telling the world she was a virgin. The 57-year-old model revealed in a 1985 book when she was 20 that she had not yet had sexual intercourse and became the “most famous virgin in the world” but wished she hadn’t said anything because the comment “never left her alone.” She said: “In it, there was one part of a chapter where I discuss—not abstinence per se—but owning your choice. I mean, I think it was, in hindsight, a bit of a mistake for me to be so open about my virginity because it never left me alone. I would get a lot of fan mail from kids saying, “Oh, my boyfriend…