If you haven't had a look at
spnkink_meme then get your ass down there. Be preprared for some kinky shit: far more RPF bestiality than I'm comfortable comtemplating, a lot of sextoy!Dean and an alarming number of people who want John Winchester, fighter of evil, to have turned his four year old son into his dead wife.
Anonymity brings it all out.
My favourite prompts are:
We got plenty of J2, Jeff, Misha requests, but I'd like one where the demons get fed up with Kripke, snatch him up and hand him over to Alastair.
Because you CAN'T EVER HAVE TOO MUCH RPF ABOUT THE WRITERS.
And:
Lucifer/Sarah Palin (consensual)
For the win, my friend. For the win.