That's phrased so mundanely. Something weird pulses in their chest, but they let it slide. It's not like they ever had solid plans for growing up either.

"I dunno. It'd be nice to get taller and stuff, don't you think? I'd like that. But my voice'd change an' I like that now too." They lift up the music book again.

And Frisk shrugs. "If they want to say stuff? This is the party," they decide abruptly. "Frisk-Chara-me party. Unless you guys want your own party." Though that wouldn't really work, they realize a little too late. Not many people know Frisk's in there with Chara.