Okay, so as much as I love the relationship between the devil and his vessel, I was wondering how many fics there are out there where there isn't really a clear line between Sam and Lucifer? So that it's not obvious whether the character is Sam-as-Lucifer or Lucifer-as-Sam? I know I've read a couple where Sam was Luci without his grace or memories (then got them back), but I didn't bookmark at the time and now I can't seem to find them.

I'm also sort of in love with the idea of Sam being possessed by Lucifer when the other characters don't know/aren't sure what's going on, so anything along those lines would also be very much appreciated.