I read an interesting story awhile back that analyzed some research and concluded that women may lubricate during rape or even torture to avoid internal injury--an autonomic response that has nothing to do with consent or desire. I also heard newscaster Connie Chung describe a doctor deliberately causing her to orgasm without her consent or even understanding what an orgasm was when she was a teen. It was an experience that still horrifies and haunts her. If your partner isn't consciously and enthusiastically saying yes to your invitation to have sex, it's rape.