FOUND by the_diggler - it's probably MissAnnThopic's sequel to The Shattered One (LJ or AO3). The sequel has currently been taken down.

-

Hi all, I think I'm looking for just one fic, but I may have mashed two together in my memory.

1. Dean, Castiel and Sam are mostly retired and living in the same house and raising a kid, which is part angel - Castiel's child I think. Sam starts a relationship with a female hunter, and Dean and Castiel have a slow burn going on. I think Baltazaar sometimes comes to visit. Castiel and Dean sleep in the same bed, but it takes a while before the relationship turns sexual.

2. I think this scene is from the same fic - the scene is from Castiel's point of view, and he and Dean have sex in the Impala. Castiel is completely overwhelmed by it. I think Dean has been in denial and this was the turning point in their relationship. If I remember correctly, I think Castiel bottoms from the top.

I've checked my bookmarks and Google, and scanned back through the tags here. I'm sure it's a well-known fic, and it's at least a couple of years old, possibly much older, but I just can't find it.

Thank you for your help.