Threesome?

[killedkelly.livejournal.com]

I had this fic saved on my old laptop and can't remember where I've found it. I remember that it was a Angelus/Willow/Spike fic, with the former two as the 'main' pairing but I think they all had a mate claim on each other. I know that they leave Sunnydale 'cause Willow knows her friends won't understand, and a bonus that Angelus won't kill her friends. Years later, she returns to Sunnydale because there's a huge fight meant to happen and she needs to be there. I know she and Spike have sex in front of the other scoobies (acting like she's a victim of theirs) and later Angelus punishes Spike in front of them 'cause he bit her again.
Any help would be appreciated. Please and thank you!