Does liking shemales make you gay?

[vampi]

I've read in some sexologist website (from Spain) a story from a man who was a shemale fan, that slept with a real men. He said could enjoy the anal sex only and felt great repulsion when he kissed and huged with him. So I think many men who like cocks, don't like men and they have the sensation of having sex with a woman when they're with shemale (they have soft skin, tits, or maybe the smell). Just in this case she has a cock to penetrate or be sucked isn't?