Found this in one of the medical blogs i read - thought it was pretty good:

Remember that movie where, after a couple of hours it is finally revealed that the chick is a dude? That’s kind of like President Obama. All of his breathless supporters thought he was a beautiful, sensitive, caring girl but now 200 days into his presidency he has shown everybody his penis and, although they still want to like him, it’s hard now because the chick’s a dude, man. Sort of changes everything. I mean, she still sounds the same, looks the same, is wearing the same clothes but she’s a guy…and all but his most ardent followers must be squirming in their seats to think they were ever attracted.