Hi I'm looking for a story that takes place in a season 2
Buffy has a Victorian costume. Spike catches her and they have sex. Spike turns her into a vampire. Then he sends it over to Angel lost his soul, and he was again Angelus. Thank you for your help

This may be the abandoned WIP 18th Century Girl by BEN-Beyond the Elusive Nomads.

This writer is now under Mythal Rising on fanfiction.net and has this story listed as discontinued. The previous entry for it on that site under BEN doesn't work any longer from my link so I don't know if you'll find it elsewhere easily. You may need to put a fic exchange request up or contact the author.