Looking for two stories:
1) Xander vamp (vamped by Darla perhaps?) working in a diner and human Spike (Shanshu). Eventually, Spike convinces Xander to vamp him. As they drive south they stop for peach pie.
2) Xander captured by demons, Dru finds him and walks into "Slayer Central" to give Xander to Spike as a pet. The Scoobies don't know how to react to the new Xander and Spike takes Xander and leaves.
Thanks so very much!