The Hangover star Heather Graham has detailed her past sex hang-ups in a revealing new movie screenplay. The actress admits she was scarred by religious teachings, which suggested that kids who had sex before marriage were on the fast track to hell. She says, "When you grow up Catholic and you're told that you're going to go to hell for having pre-marital sex, then how do you go on and have a normal sex life after that?" In her screenplay, Graham opens up about the extremes she went to to conquer her sexual hang-ups after losing her virginity. She adds, "One thing that's in my script is that I went to some funny different kinds of female-empowerment classes... I went to one where they do little exercises like, 'Let's honour your breasts'. So you talk to another woman and you go, 'I honour your beautiful breasts. They honour me and they honour you.' "There was this book that we read, it was called, Extended Massive Orgasm, and it basically teaches women how to have an orgasm for, like, an hour... It's about relaxing." Asked if she has ever experienced an hour-long orgasm during an appearance on U.S. TV chat show Conan on Thursday (16May13), the Boogie Nights star said, "You can have it longer than an hour, according to this book... It's true, it can happen."