Anne Stuart's "Ruthless" - #1 in the House of Rohan series

Ruthless - Anne Stuart

This one turned into a very enjoyable read, with 2 well-matched and interesting main characters and a really sweet secondary romance. The "Heavenly Host" stuff was mostly hype, though, and the orgies were a lot more talk than action.

Not sure about the cover - the "I'm too sexy for my dress" babe on the cover has absolutely no connection to the story.