The thing is Tom a lot of these lads did it for the experience as well as the laugh and it not just the money that became the more important aspect. That changed rapidly with the rise of social media and OF/JFF and the Shabazz's and his entourage et al. But its the fact that other blokes are seeing them tossing off and cracking out loads on video, that draws them to perform in gay porn, but at the same time they have to pretend not too much into it lol.
Its like Nick Baker who is not my fav person from English Lads said to one of his models. 'You enjoy knowing that these men are looking at playing with your cock, talking and wanking off over you dont you?
The lad said honestly yeah I do!
and i will get some more pics up soon 
