Quoting Chroma Hex [+1]:" I'm going to take that as a must-read now, then. Hahaha. I'm not really into BDSM personally, but I know a lot of people that participate in it. I think I could at least appreciate it."
I have to warn you, it is very hardcore. Also, there is some threesomes, man-on-man, woman-on-woman, man-on-woman, woman-on-man BDSM, just as a heads up. But they are wonderfully written, there is no stupid plot, and Anne Rice kicks E.L. James' ass any day of the week.