They can tell there's something off about that. They smile back anyway. "Good."

Frisk shifts so they're snuggling against his side--that's becoming familiar, and they very much don't mind it--and turn their head to look at the abandoned book.

"...wanna keep reading? Heard you read for me when I was...dead and stuff, but I didn't get to hear most of it. Sorta was sleeping." There is a lot more guilt to saying that than they expected. It leaves an awkward pause as they shove the emotion away. "So I want to hear you for real now."