http://www.straightdope.com/columns/read/2845/why-arent-porn-actors-charged-with-prostitution

I wonder if there is a legally feasible for someone with a knowledgeable lawyer to try and see what they can get overturned in other jurisdictions.

I never really understood the double standards until I got to see what was up. So much of it has to do with the religious nutters imposing their agenda on the rest of us.