Supernatural/Dr. Who crossover fic rec

[cuda]

This is such a fantastic little piece. I seem to be on an unrequited/unconsummated love angst kick, and this one hit my button repeatedly.

Men Are From Mars by big_banggang
fandom: SuperWho
summary: Castiel and Jack have more in common than they first thought.
characters: Jack & Castiel.
pairings: Jack/Ten & Dean/Castiel — both unrequited.
rating: T