In reallity find something like this out is very disappointing. Too many people in this business don't act professionally. If you book a girl for a scene, everything needs to be up front on the table about what the scene is. It is a business, act like a professional.
These guys - the director who performs and produces can obviously be the worst offender, since he controls the entire production chain - act like the girl they're fucking is their girlfriend or something, trying to take every inch because they want to fuck them up the ass or try to get more for their money or whatever.
Sadly the girls like you say, especially with someone with the supposid stature, end up just going along with it - stupid whores like corina taylor. At the end their greedy money grubbing hooker brains just want the money, they don't realize its a free country, if someone is trying to fuck your asshole and you don't want it, just get up and leave.
People need to remember at the end of the day these guys with their cocks in your asshole are just sleezy pornographers. Even "geniuses" like Johnny Darko and Jules jordan when they go to mainstream parties are just worthless porn guys. They are false idols.
EIT