S. Bear Bergman said this quote

I don't switch much, don't really want many people to fuck me, because there's a whole code, unwritten but no less rigid than if it were chiseled in stone, about how Tops Must be, how Butches Must Be, and it does not include taking off one's pants. It does not include admitting to one's own desires, only quietly serving the desires of others. It certainly does not include taking a break once in a while to inhabit some other gender, role, or sensibility, even for half a delightful, sweaty hour, in the company of someone who feels like a mirror of me rather than a complementary piece I can fit myself against.