Researchers traditionally have assumed that sex reassignment procedures do not change sexual orientation. Of 20 transsexuals of various types that were interviewed, 6 heterosexual male-to-female transsexual respondents reported that their sexual orientation had changed since transitioning from male to female. These respondents stated that before transitioning they had been sexually orientated towards females. After transitioning, these same respondents reported that they were sexually orientated towards males. Five of the six respondents reported having various sexual encounters with males since transitioning. The respondents explained the changes in their sexual orientation as part of their emerging female gender identities. Three of the respondents claimed that the use of female hormones played a role in changing their sexual orientation. It did not appear that the respondents' post-transitional sexual attractions towards males were similar to autogynephilic images and fantasies described by Blanchard (1991).