I actually wrote a little Buffy/Faith ficlet once... I just dredged it up if you're interested! :D
http://abusing-sarcasm.livejournal.com/1425.html

And as for the bunny? If you say anything that has to do with the words "Harry," "Draco," "Spike," "Xander," and "crossover," I might have to move in with you and have your babies...