Demyx seems a little relieved to have caught her attention with the water barrier, honestly not sure what he'd say if she kept insisting on finding a good puddle. Of course, now he's the one getting soaked - which is better than her! - but he can't help but wonder: if he's capable of handling an entire wall of geysers, why can't he add a little more mass to that floating shield of Yotsuba's to stretch over himself as well? It's a bit of a no brainer he feels foolish for not having done in the first place, seeing her perfectly dry just beside him. So, instead of letting the water continue to drip off, he allows a little more conform, spreading it far enough to cover the both of their heads and then some.

"Ta~da," the musician grins down at her triumphantly, resting one hand atop a tiny shoulder. "You like that? It works inside, too."

He walks around a little, just to show her the shield would indeed follow, chin raised to keep watch and focus while guiding her along beside him.

"Wanna see?"

It was worth a shot.