Buffy, spike, and Giles take a trip to London to try and find a vampire that has been terrorizing

They go to find a vampire who has been terrorizing the people in London. Spike takes Buffy to one of those places that give you a room and toys to try and sense if the vampire had been there anytime recently. When he senses nothing they use the rest of the time for pleasure and pain. Thanks

I can't remember the title offhand, but its on this site by Sandara.

A Castle of a Different Sort by Sandara

Summary: Buffy and Spike get up to some nasty fun at a BDSM castle while hunting a vamp in London. WARNING This is rated AO for a reason. Don't read if kink upsets you. This will be very down and dirty. I mean it. This is very kinky


Apparently Sandara took all her stories down again. Sigh. I do have this one if you want a copy contact me through my contact here at TSR and I can send it to you. I am not aware that she has forbidden sharing of this particular story so I don't mind sharing it. I wonder what happened?

Thank you!!