Dating should convert well on softcore traffic ... we have lots of softcore creatives/landing pages for SexSearch.com or XXXMatch.com, and we also have PassionSearch.com (more mainstream/non-nude).
The affiliate program for all three is here just in case you are interested:
http://affiliate.sexsearch.com/?ref=3401
Marina or I or anyone else from the company would be glad to answer any questions!