Gossip: Bristol Palin, Levi Johnston

Bristol Palin uses her new memoir to unload on former boyfriend Levi Johnston, said TMZ.com. In the book, Palin says she lost her virginity to Johnston and became pregnant with Tripp when she blacked out on wine coolers. Johnston, she says, was cold when he received the news. “Better be a f---ing boy,” she quotes him as saying. Bristol refers to Johnston as a “gnat’’ who cheated on her constantly. Johnston is writing his own memoir, due in the fall.