AU Jessica Lives
I am looking for a fic I remember reading, possibly on AO3. Jessica somehow lives through the attack (I think she spends some time in the hospital?) She is then roped into the road trip. She and Sam are a couple...then Sam dies, I think related to the cage? Then Jessica is pregnant and she and Dean kinda become a thing, both pining after Sam who is dead. Then Sam comes back to life and finds them. And they kinda work out a three-way relationship? And parent the kid? The whole thing occurred in a mostly post-apocalyptic kind of setting, I think?