Sherlock is a little taken aback, the sincerity wholly unexpected and foreign to him.

"And you," he says.

Joan sees that and blinks. She has seen many people meet Sherlock for the first time, and no one has ever flummoxed him like that, nor have they walked away with a smile. It's so very Ted, and her heart is warmed, feeling proud of this man she's quickly falling in love with.

Once they're in the hall and the door is closed behind them, Joan turns to him, throws her arms around his neck, and kisses him firmly.