There is a few AVS sites that allow to create your own mini paysite and promote it.
User who will join your site also getting access to the whole network - could be 1000s of mini paysites, so you cab expect him rebilling long time.
And your mini paysite also become available for other network affiliates to promote, and you getting decent share from their sales.
Few AVS network programs:
Adult Empire
Cash Maniacs
Porn Access