Well, that is definitely the last thing Prompto expects to hear. It serves as a kind of icebreaker- the breath he didn't even realize he was holding leaves him in a bright, gentle laugh. He closes the distance between them more, voice lighthearted.

"Y'know, I could just use the water and my hands for a little. It should still help some, right? You okay with that?"

He's feeling brave now. Even as his heart races- and Prompto, if given the opportunity, will get closer and closer still until he scrambles onto Ravus' lap, reaching his hands around the man's shoulders to gently scoop water, then rub and scritch along his back. He takes extra care and gentleness closer towards the spine and the growing neural spikes, not wanting to bump into them to accidentally cause pain.

"See? Just like that. How is it?"