Sentence:  The idea of something, or someone, being unusual and sexual is intoxicating. I concluded that if I ever met a very <WSD>passable</WSD> transsexual and we were attracted to one another, I'd go bisexual and pursue the relationship. 
Meaning of the word marked with <WSD> tags:  able to "pass", or be accepted as a member of a race, sex or other group to which society would not otherwise regard one as belonging.