Buffy is kidnapped and turned by Dracula and Faith. I think that it was a turned Faith that brought Buffy to Dracula to turn. Spike finds out and through vampire ritual, converts sire ship to himself rather than Dracula. I don't remember the name or the author but hopefully someone does. Thanks. It was very well written but I can't for the life of me remember who the author was.

katamaphone
Did you ever find this fic? It sounds good and I wanna read it : )

If it wasn't for the mention of Faith I'd say it might be Dark Gift by Schehrezade incomplete over on EF http://dark-solace.org/elysian/viewuser.php?uid=5

or possibly Needlework by Holly http://dark-solace.org/elysian/viewstory.php?sid=43&warning=NC-17