[He's quick to keep close to her, both to keep her floating and to keep her warm. The pool is very deep, but he has an idea. He concentrates, and the water beneath Justine's feet hardens to the point she can stand on it. He can't do anything to change the temperature of it, but it's already warmed by the heated rocks at the bottom. As long as Justine stays submerged, she'll be warm.]

You want to play fetch with me?

[He teases her, but his expression is fond.]