Helios was laughing when he popped up from the water the third time, after Uzume had dunked him in return. His hands came up to wipe long strands of wet hair from his face. "Hey! Hey! Come back!" he called out, waving his arms up and down at the retreating goddess. They were just starting to have some real fun, and now she was going back onboard?! "Come on! I'll be a better hero this time, I promise!" Speaking of which, she wasn't a very good damsel in distress! The girl wasn't supposed to save herself and leave her hero in the middle of the ocean! Especially not one with muscles, long hair and a nice tan. Seriously, horrible damsel.
But then he turned to the nearby splash of the other goddess joining him. Excellent. Helios lowered his head beneath the surface of the water, looking on to the goddess just sort of sitting there. Stationary. Wasn't this the one that seemed like she needed to loosen up? Excellent! She remained beneath the surface for several minutes though? Awkward. Interesting. Helios remained down there with her, watching, his lungs used to it from all the time he usually spent at sea. She looked like some sort of bull, all stubborn and pouting down here in her own little world. Or a fish, considering that she must have had gills to not only remain down here, but throw a hissy fit while doing it. Was there some cross between the two?
Oh, of course. A crab.
Helios waited until Amaterasu had surfaced again and began shouting back up at the boat. He surfaced just long enough to take a quick breath before swimming back down, taking his time in circling her, approaching her slowly from beneath and slightly to the side. Then, without warning, and without so much as a second thought, Helios swam up behind her just like he had with Uzume. Rather than surface though, and rather than pull Amaterasu down with him he instead went a different route to try and get her to loosen up and have some fun. Helios took two handfuls of Amaterasu's strapless dress and pulled it down, down off her body in a single sudden jerk and quickly kicked his feet against the water, swimming away.
A steady stream of bubbles trailed from the sides of his mouth as he swam away laughing.
He didn't pop back up until he was a good fifteen feet away, Amaterasu's dress held in a hand like some kind of trophy. The grin on Helios' face was huge, but it was quickly hidden behind his other hand, this one coming up in front of his face only for his fingers to then part. His tongue stuck out between them; a taunting gesture, on numerous levels.