For a long few seconds, Gladio eyed Prompto over, then a warm smirk touched his lips and he gestured at the toilet. "Sit." Pointed and simple, trusting that the other would do so. He continued on his preparation, but it wouldn't be for him.

Hot water on the cloth, a bit of shaving soap to foam up, then Gladio came over, looming over Prompto. "Chin up, then don't move."

He'd wrap the hot cloth over Prompto's chin, cheeks, and neck.