I'm looking for a fic I read on AO3 a while back that I've been wanting to reread and can't find in my bookmarks. I don't really remember the premise, but I think in one scene Cas has written a book that has a Dean-inspired main character (I think) and he's doing a talk show or something with an audience, and he's saying that 'Dean' will never forgive him or something and then Dean stands up in the audience. I'm pretty sure Cas is human and it's post-apocalypse, and that Sam and Dean read the book beforehand, and Bobby's somehow involved... Sorry, that's not much to go on. 

Thanks for any help in advance!

FOUND by the wonderful violue, here.