I guess this is a fine thread to start posting. I saw a shemale for the first time in some magazine when I was a very young teenager. I remember that she had so feminine face and body that I immediately dissmissed the pictures as fake. I was very naive
Later, while I experimented with more and more porn I realized that, in addition to female body, I admired nice cocks. I never found anything attractive in a male form, in real life or in porn, but the cocks really turned me on. I checked out some shemale sites and the love was born
For me, shemales have the best of both worlds, and give me the ultimate pleasure.
Although, it might have started when I was a kid and had a friend who used to put a wig, dress up, and act like a girl, and I sometimes thought that he looks cute dressed as a girl. But that's another story