Straight or shemale/ladyboy only for me, though i dont watch half as much straight porn as i used to, it doesn't seem as exciting or sexy since i found shemale porn.
I have watched a couple of gay scenes out of curiosity for a few minutes but it really turns me off, just dont like it at all especially it two guys start kissing yuk!
A bit strange as i love to see a guy kissing a shemale or in a good mutual cock sucking session, now that's really hot.
I think its probbly because i see tgirls as girls with cocks.