Gender is commonly thought of as dependent on sex even though there are occasional aberrations. Interviews with female-to-male trans people, however, suggest that sex and sex characteristics can be understood as expressions of gender. The expression of gender relies on both behavior and the appearance of the performer as male or female. When sex characteristics do not align with gender, behavior becomes more important to gender expression and interpretation. When sex characteristics become more congruent with gender, behavior becomes more fluid (...) and less important in asserting gender. Respondents also challenge traditional notions of sexual orientation by focusing less on the sex of the partner and more on the gender organization of the relationship. The relationship’s ability to validate the interviewee’s masculinity or maleness often takes precedence over the sex of the partner, helping to explain changing sexual orientation as female-to-male transsexual and transgendered people transition into men. (shrink)