Pomme de sang

Yes, it's me again.  Looking for another fic.  I thought it was called the scarlett letter because of the A tattooed on Xander's chest, but I can't
find a fic with that title.  I also thought it wa by saturn girl, but my search has turned up empty.  Anyone remember the fic where Angelus turns
Xander into his Pomme de sang?  He heals really quickly with injured parts glowing or sparking?  And he can't stand Cordelia's kissses anymore?
Ring any bells?