Elsa's the first to regain her wits. "Not- no, we're uh. Anna's just a good friend." The little girl pouts.
"But she's so pretty!" she says. Elsa's eyes widen and she blushes. Anna finally finds her voice, and it's Elsa obviously never planned for this.
"We're just very good friends," she says. "Best friends. You have a best friend don't you?" The girl nods. "Well, it's just like that."
She frowns, obviously not believing them. "Well, I think you should."
Then the bell rings, and Anna's never felt more grateful.