Trade it for an xbox like Mike Rowe
http://www.cnn.com/2004/TECH/interne...oft.settle.ap/
Seriously though here are a couple ideas...
1.) Let all your bookmarkers know you are moving your free porn to another domain, then in a week or two, signup with the affiliate program of blockbuster.com and push their program with your leftover traffic. This way you are not profiting off of their name recognition in any competitive manner.
2.) Sell your porn site and let the next owner deal with it.
3.) Sell the domain name on ebay.
No matter what you need to be looking at capitalizing monetarily off of your time invested in the domain. Don't hand it over, if worse comes to worse, offer it to them for like $50k or something... after all that is like maybe 1 minute of their daily sales revenue.