I've just recently re-read Good Omens and decided to look for some A/C slash now that I'm old enough to think the pairing is obvious. I found this on some randomly googled rec list and I liked it so much I had to comment.

I always like slashfic with lots of unresolved sexual tension, but it's rare (for me at least) to find a fic where this is true despite the fact that the couple has already had a lot of pretty good sex. I love the premise you came up with; it managed to fit the above-mentioned criteria and it added so much depth and interest and plot to the story.