It's not an OC, even though I thought of her that way in the story. Agreed! I had absolutely no idea who they were taking about until I got to the author's notes. And, the type of gory violence you'd expect in SPN - unfortunately, it's not so much SPN gory violence as what actually happened, there, and in some/many places continues to happen.

I like it, though. Do you know if anyone's written any Uriel!vessel fic?

On further examination, it appears that the episode is about gluttony of all types - sexual, but also food, drink, and other addictions - so maybe it won't be quite as bad as we fear.