For what it's worth, while I think shemales are hot, and I mean really hot, there's just something missing no matter how hot but that a genetic girl has. I think it's a pheromone thing. It's a pretty weird effect to be in the presence of a stunningly gorgeous shemale and almost all systems are go and yet...
And it only happens in person, not when looking at porn...
Anyway, just my two cents. Doesn't mean I'd pass up the opportunity to do it with a hot TS, but just that there's something missing under the surface for me and perhaps only me.