As a gay man who consumes a lot of straight porn, yet is frustrated by some aspects of it, I have recently learned something from posters here that helps me frame a theory to share. Have read at least four and I think more guys here say basically that they are very aroused by dicks but indifferent to the male body and face. I get so pissed off at straight porn where the director constantly cuts off the heads of the male performers-- but if you like the sight of a big dick fucking and don't care about the body and face, this works for you just fine. You want to see the female body and face getting the attention. Although I first had a WTF? reaction to seeing several guys report the same pattern, I then had an Aha! moment, that I'm the same way about pussies and women. Can watch pussies getting fucked for hours, but female faces and bodies just don't do much for me. So here's the theory: being hot for primary sexual characteristics is hardwired and bisexual. It's normal for men and women to be aroused at the sight of dicks and pussies. But being hot for secondary sexual characteristics, like relative size and shape of bodies, is a much more learned process and tends to be so focused on one gender or the other that it can drown out the deeper bisexual bias for arousal by all genitalia. Which however has ways of breaking through into consciousness! Now of course I'm generalizing from four or five guys here to the whole human race, and in a site where hot-for-dick-even-if-straight is a self-selected trait. But I also have spent vast amounts of time in the 80s/90s in naturist resorts in the US, Europe, and Canada, which provided abundant evidence that straight guys can't help staring at dick! My half-assed theory has the virtue of explaining the relatively huge market share occupied by shemale porn, in contrast to the very small transgendered population. Giant dicks, big titties, no beards or muscles, soft female bodies. A conscious bias for female secondary sexual characteristics tells you that watching a shemale ass get fucked is OK whereas standard gay porn is eeeww gay. But that basic hardwired bisexual hotness for genitalia of all varieties gets satisfied by the trannie's big dick. Any truth in this?