I think we are afraid of each other when it comes to sex, because we read so much about sex, we talk so openly about sex, we see movies and we read books; but when we are face to face with someone else, we forget our individual patterns; that we are unique. So we try to repeat other people's patterns, according to what we seen and what we heard. So most of us are very frustrated, because we don't accept our individuality as far as sex is concerned.