if girls dont know about getting pissed on than that sucks, he should really tell them about that and he should get introuble if he doesnt. i think every thing is just fine with max as long as the girls know what they are going to be doing in the scene. alot of girls like that kind of kinky shit anyway. the consent is what we should be concerned about not the content.
there are people into different sexual acts and its hard to say what is acceptable in a democracy. some people get off on getting shit on and rolling around in it, but thats their bussines, remember that they enjoy it and it doesnt harm anyone. some people are freaks that regular people wouldnt understand. so its hard to say max is really a criminal. if you want to put max in jail why not put all the gay porn producers behind bars aswell? what about trany videos? thats real filth. you have to remember that people are into different and more hardcore things then what your tastes can handle, so find the porn you like and STFU.