It was a Spike/Xander fic mainly, but I think Oz was living with them after a point. I believe it started the summer before fourth season, and I know there was a Fairy/Sidhe involved, I think Xander saved him after work maybe and he gave him bread and something else, so I think the fairy that called himself Jack gifted him with something. It's been about two years since I read this and it was an epic fic.
If any of you know what I'm talking about, help a poor girl out. Thanx.
Handcuffs and Kisses,