I love Femdom and facesitting... Not the fake ones... I hate fake facesitting videos which most of the porn companies make... If a women decides to facesit a slave then she won't stop until she gets couple of orgasms.... and real facesitting would end with juice on slaves face which is missing on all these fake facesitting/femdom videos.... Below are few reasons for fake and unrealistic pron productions:
1) Cheap Actors who are not into FEMDOM and just do their job for money.
2) Male partner might be Gay.
3) Female star may hesitate to complete the session as she might feel embarrassed.
4) Thoughtless and senseless producers who's goal might simply be the money.

I love Japanese Porn as they do it on the right way... the only thing I don't like about Japanese porn is that all of their releases are censored which pisses me off... but atleast they do their work passionately.