I am 100% straight, but I like to watch jerk off videos because of penis envy. I don't like watching just any guy jerking off, it has to be a big dick and I prefer if it only shows the dick and nothing else. When I watch it I don't think about wanting to do anything sexual with it, but more like I just find it aesthetically pleasing to see a big dick get stroked, and I try to imagine myself in that position and think stuff like "wow, that must feel great". Can anyone relate?