We're talking about men who I will most likely never meet in real life, and will only see their pictures here! So for me, it doesn't matter whether they're straight or gay, I just like to look.
Now of course, if it was a guy in real life, I'd want someone who would possibly be interested in me sexually, so of course I'd prefer a straight guy in that way. Although I'm often more attracted to gay guys in real life, too! That was really apparent in my teens and twenties, when I'd say that about 90% of the guys I was attracted to were gay.