Have you tried clip-selling sites yet?
Yoogirls.com offers clips in 70 fetish and bdsm categories and converts better than any paysite in this niche. You get the 20% commission FOR LIFE - once the customer orders once under your affiliate code he'll be assigned to you forever and you'll get commission on all orders he ever does. Check out the affiliate program here:
Yoogirls Affiliate Program
If you've any questions hit me up at
[email protected] or ICQ #464114379