I don't even know what to say. At first I was like... "is this crack?! Christmas crack?!" and then... "WITH PORN?!?!" and pretty much incoherent after that. Oh gosh, this is so original, with your world-building and LEON (who is hilarious) and Merlin being Father Christmas and awwww Arthur who just wanted to be a Christmas elf!!! I thought I'd read all sorts of fic in this fandom... until this. *g*

And now I need art.