Sans watches Papyrus's face again. Even in a human body, it's a familiar look, the one Sans wears when he's trying to study someone. Like he's trying to look under their skin. It's there for a moment, and then it's gone, with Sans shrugging with one shoulder so he doesn't knock Papyrus off-balance again. "You can put some up later if you want. It'd make it easier to find on the street." So many of the houses here look almost identical to him, like they were all started from the same mold and just painted differently.

Sans almost pushes Papyrus inside as soon as the door's open, locking the door behind them just as quickly. Finally. "So, where were you?"