Only fags "do not believe" there are straight men in gay porn, actually straight men are most of them because they are handsome, strong, masculine and do anything when they really need money.
Gay man handsome, strong and masculine is one in a million.
Bel Ami, Sean Cody, MEN, Corbin Fisher… stars are most straight. No matter what you say, no matter how you force to deny... they are not in your circle, they only do it for money.
If you have money and know some straight guy who needs/wants money you'll see how easy it is... but I doubt you have any straight friend or the courage to do it... because you are fag.