she's one of my fave authors and I read everything she comes up with.
this amazing story is not an exception.

When I am with you I feel flames again by fleshflutter.
(Sam/Dean, r-rated, 11800 words, non-con situations)
Following a failed apocalypse, Dean nurses Sam through his addiction to demon's blood, which has driven Sam to horrific things. Title from Vast.

Link to fic.