This was done by the great  crovan!

Well, here I am again, now this one is interesting. Thank you for doing this Crovan!

Artist says:
"This is this year's Halloween doodle of Crovamp who's about to feed.
wolfganghm is supposed to be this year's victim. All glamoured up and ready.
(I know the anatomy's not really good, but I hope it doesn't blow chunks)"

Original here: http://www.furaffinity.net/view/11838094/