Well the world isn't that simple. I've seen some female erotica that I've found very hot but I've never in my life fancied a women. Also your sexuality doesn't define your appreciation for certain "aesthetics". Many guys have specific male body type preferences that they think is most attractive and aspire to have. That is an interest.
Anyhow I presume most of these guys were just curious, bored & exploring and I'm sure many are on the kingsey scale above 0 but below a 3.
21% of men watch gay sex videos? thats a large percentage within the straight community. Imo I believe that straight men who aren't necessarily gay watch these videos for self knowledge. Curiosity can lead you into a windy shady ally.
