Asking is customary, yes, but if he thinks anything of the demand, Erik elects not to show it. "Please," he says, and steps toward the door, widening the entrance—and that's all he says until his unexpected guest enters, assuming he does indeed do so presently. It is only when Pietro has gone past that Erik's gaze will break away, and only to scan the street for a hint of anything suspicious. (This is not specific to the visit, only a daily habit.)

The house is not especially large, but it is clean, with primarily white walls, wooden floors, and an abundance of doorways, most of which are open to promote a feeling of space. (Erik does not like any door to be closed unless there's a specific reason for it.) The rooms are mostly furnished, and the living room, visible from the front entrance, currently plays host to a small number of boxes as well, some open, some yet sealed.

"How did you come by this address?" He has an idea, but asks anyway, because it's something to talk about.