I am pretty much sure the more fic-oriented members will probably kill me for not knowing this but there is this fic that's been on my mind for last couple of days and I can't seem to find it :/
Pairings were Spike/Xan and Angel/Doyle and all I can really remember that Xan and Spike were staying with Angel in LA and one night Penn showed up, snacking on Xander and leaving him bloody on Angel's bed, as an act of revenge on Spike.

Any help?