[By the time Teddy returns, Billy has not only licked every single candle clean, but also cut himself a hefty slice of cake, and is just polishing off the last couple of bites. He looks utterly smitten and thoroughly sated.

Teddy gets something of a dramatic response at first, as Billy lifts his fork, one last smear of icing twisted around the tip-]

"On a scale of one to ten, you are an eleven."

[And then, more seriously, right before he helps himself to the last bite-]

So that's what you were up to. You were gone so long I was about to go looking for you.