We buy/license porn music for our videos, usually techno/trance rhythms without a lot of melody. Some rock rhythms, too. Producers are always looking for this material, as it's difficult to find. Every single composer we've talked to over the years was a flake, tho... no one could even come up with a sample track. But we'd certainly be interested if you can work up some samples. Right now there are two composers I know of who actually do music just for porn:

www.adultindustrymusic.com

www.barreparts.com

AIM might even be interested in re-selling your stuff.