Guess that fic

I am jumping on the bandwagon. As Alisanne challenged -- anyone who can correctly guess which fic is mine from Merry_Smutmas will get a drabble (most likely) or ficlet (somewhat likely) of the hp pairing of their choice. 
I exclude those of you who were able to see my beta post of it over on LJ -- unless you want to promise me up, down, and sideways that you didn't see that post/didn't read it, I'll take your word for it. 
I think it's glaringly obvious, but I'm the author so of course I would....

** almost forgot -- our host is back from the vet and the seems to be banged up but okay. Thank goodness.