@ShadowWind & Orio, The basic premise sounds good but Renderosity has seperated itself into galleries. If the pinups are in the pinup art gallery and the kids are in a different gallery, there is seperation. When I buy images from vendors online, they sometimes have both nude models and kids. However, they are in seperate and distinct sections. If Renderosity makes sure the images are seperate, it should be able to have the same legal protections as image vendors.

Before they made me they broke the mold!
http://home.roadrunner.com/~kflach/