It looks like True Blood just went from PG to R: cast mainstays Alexander Skarsgard, Anna Paquin and Stephen Moyer appear nude on Rolling Stone’s September cover, accompanied by a story entitled “The Joy of Vampire Sex.” In the article, Moyer describes the appeal of vampire sex, and Paquin sounds off about announcing her bisexuality. “I’m not sure what the reaction was, but I’m glad I did it,” she said. “There’s such an impulse to turn it into a sensational thing, when what I was really hoping to say is that it’s normal and not interesting. I feel so lucky right now. Life is pretty great.” The issue hits newsstands on Wednesday.