I'm usually done with a scene way BEFORE the actual dude in the scene is.
Wanting for the dude to splooge is totally gay.
Posted By: playwithkeisha
From a psychological perspective, there are things in our brain called mirror neurons. When a man watches another man having sex in a movie, his mirror neurons are firing and he is putting himself in place of the man in the scene. If a man in the scene is not wearing a condom, this signals the mirror neurons in the brain to make him feel in his fantasies that he is having sex without a condom.
This is not a conscious process. This happens on a subconscious level. Most men that I have asked about whether they like scenes with our without condoms, the ones that do, can't really tell me why they like them better. Or they make up some sort of answer like, it just looks better.
The movie companies know that movies without condoms sell better than movies with condoms. Otherwise this wouldn't be such an issue.
It the same reason why men like to see the cum shots in movies. I have questioned so many men about whether or not they like to see the cum shot in a movie, or if the scene would have the same effect on their arousal. Most men say they like to see the cum shot, but they can't exactly explain why. They'll try to give a reason like, "because then you know it's real." But that is not the true scientific reason.
The real reason is the mirror neurons. When a man sees another man cum, his mirror neurons fire and he can more vividly feel his arousal. Dopamine gets shot into the nucleus accumbens which is the award center of the brain.
I hope you don't mind this techy psychological bable answer, but I am studying to be a research psychologist and one of my favorite things to do is to study the brain and how it affects our behavior, especially our sexual behavior.