Some people would say the same thing about us men who like to dress up and pretend we are women.
Who are we to judge what someone else likes. There is nothing wrong with watching a little porn, some of it is actually funny and some of it can actually be educational, when I was younger I used to watch porn to learn new techniques to better satisfy my wife. Sex if we really want to be honest, is just an act unless you are trying to reproduce but that's just MHO