Try
www.iniquityclub.com. If you don't mind traveling, try this. It is a good way to begin hooking up with people who are like minded. The Hotel next door is where it all happens, although I hear that it get's pretty crazy at the club.
from the website it says:
Enjoy the hottest, sexiest, most fun-filled nights of your life in the elegant surroundings of Dallas' finest Couples-Only Lifestyle Club.
Dance, Play or Just Watch!