As I was looking at the picture below, and it made me think of one of the reasons I love S.F.. More than any other city I've lived in, S.F. celibrates sex, regardless of gender or sexuality. Most of the rest of the country is clinging to it's puritan roots, where they believe if it's fun, it must be a sin. S.F. is all about the fun, even if it's hedonistic fun. Be a freak, and be sure to invite a few friends to be a freak with you.
Picture shamelessly stolen from a comment in jameth's journal.