Suggestion:
Add "Hidden Camera" to porn channel categories, so you can make an actual subscriber based website out of these films. Special rule for this type is that customers do not expect high quality (naturally), so the quality rating doesn't affect happiness. However, what fans of this genre really want to see is just how many people the MC can have sex with, so the number of videos expected per month should be much higher - starting at around seven and then maxing out around twenty-five. So customer priority would read like:
Number of people seduced: High (which is another way of saying "model variety" and so would just use that preexisting code)
Location variety: Medium
Model/Film quality: Low
The usual sub-categories can be used too, of course, if desired. Teen, MILF, Asian, Creampie, etc.
And again, there would have to be an upper limit/max on how many videos they can expect per month, because you are just one man or woman, after all. I think 25 is ideal - one per day with just a few days off each month.