Orion saw the reaction Narcissa had to being called 'little one' and it warmed his heart that she still cared so strongly for him. They had always gotten along well together when she was younger. Calling her that had been natural to him but it stirred up so many pleasant memories he had a massive smile upon his face.
"I am glad," he said grinning at her. "That will give me permission to spoil you once again."
As he saw Narcissa lock the door he hummed in agreement. "I can understand that. It would give you a sense of finally coming home.
He slipped off his over coat and handed it to the waiting house elf without a second thought. "A bottle of Butterbear wouldn't be turned down," he replied still with the massive grin upon his face. It was good to see his family again.