[It's actually how he got the idea - from hearing her younger self making singing noises as she tried to adapt her speech. He seems pleased at her agreement.]

How about a love song?

[He's a sucker for sappy stuff.]

We can relax in the garden together while you sing. I'm sure it sounds much prettier in person. And after all...

[A small smile, as he holds up a familiar pair of sandals.]

...I still have to give you back your shoes.