Insta-rec (fanfic): "Do It" Sam/Dean, NC-17(sorta) -- SPOILERS for S10!
So JJ1564 wrote a short n' sweet, neat little Sam/demon!Dean fic based on a certain event from the SDCC spoiler clip -- Do It.
Yes. DO IT. GO READ THIS RIGHT NOW.
Summary: Sam has a blade at demon!Dean's throat and what happens next is perhaps inevitable...
"Inevitable," they're not kidding. Considering Sam's prior history with demon blood and certain things Jensen has said about demon!Dean, S10 could become VERY interesting. That is, if Show dares go there. ;)
eta1: . . . which probably won't happen, because I doubt the current crop of writers even remembers as far back as S4/5.
eta2: JJ1564 is considering writing a Dean POV of this scene. O_O YES, PLEASE!