6) Never had anal sex / Don’t Know

Most psychology research that deal with gay men dichotomize the sex roles as Top and Bottom (if they differentiate among gay men at all) – preference for insertive anal intercourse and preference for receptive anal intercourse respectively. This paper summarizes a study that tested a more elaborate categorization, and finds that sex role preference is correlated with differences in physical preferences for a sexual partner among gay men, suggesting that the hypothesized categorization is meaningful. The data suggests that sex roles should be thought of as a continuous spectrum that map onto a continuous spectrum of physical preferences. The new categorization tested includes 6 categories