"Oh." Charles is looking at the key while Erik pushes him inside the house. But then he realises from the first glance that this is where he's been living in. It all screams it. The low cabinets, lack of rugs and thresh holds, even the elevator.

He turns by planting one hand on one wheel and lets the momentum carry him around. Facing Erik, he smiles a little, a hesitant curve upon his lips. "And my room?" he asks quietly. "Upstairs, I presume."