Buffy and Drusilla switch bodies.

Are there any stories that feature Buffy and Drusilla switching bodies?

i.e. A spell causes Buffy and Drusilla to switch bodies which results in Buffy and Spike growing close.

I'd prefer stories that include the following:

Completed.

Not AH.

Not post Chosen/NFA.

Not too fluffy.

Rated NC-17.

Well written and paced.

Cursed by Sunalso has Buffy switching bodies with Dru every night. And is set in season 2. Really good story with weekly updates.
Its found on elysian fields