"A Pact Formed And Agreed Upon" "A Pact Formed And Agreed Upon" by martyred-wings PAIRING: Dean/Castiel RATING: NC-17 NOTE: AU, Supernatural/X-Men crossover SUMMARY: Written for the following fusion exchange Prompt: SPN/X-Men: Dean and Cas as mutants. Any sort, but I think it'd be really awesome if Cas had telepathy.