Calling in a Favor: The Malevolent Masterpiece

"Dean Winchester? This is Neal Caffrey. I don't know if you remember me, we met a couple of years back in a bar in Spring, Texas. I gave you a few pointers on how to properly forge a credible FBI badge and you gave me your number, telling me to call if anything weird ever happened. Well, I think I finally found your definition of 'weird'." [SPN season 1; WC pre-series; gen; whump]