He pays the same fee as everyone else. Stop thinking the porn world is some magical, secret enclave. Look, it's a business. You select talent from agencies, pay the agency fee and the model's rate, then shoot. Rather you profit or not from your shoots is a whole other story.
_________________________
"What I do know is that if Karen Carpenter and Mama Cass Elliot had shared that sandwich they'd both be alive today." -Michael K