When she grabbed the two water balloons, he didn't bother to grab another one and just let her push them into his chest, grinning as they splattered over him, watching, and feeling, the water drench down his chest and abs. Clearing his throat, as he stood there a moment, he looked back down at her with a brow raised and then chuckled when she went to go after another, hearing her, "Well, it's still cold out, with water chilling on me, so... warm-ish, but I'm sure I could be warmer. Got a bit warmer just a second ago."
No sense in hiding it, after all, his arousal was easily on full display in his nakedness, so no sense in denying anything. Chuckling though, as she seemed more eager to keep the going up, he shrugged, "So some of the balloons probably popped in there right? Right."
He moved towards her then, pushing into her from behind, taking hold of her hips, pulling her back against him, but in reality it was more or less to keep her held so her back was to him, then pushed her into the table where the bucket was, before reaching around behind her to grab the bucket and pull it up, twisting it upside down, and dropping the rest of the water and water balloons all down onto her head from behind. Letting her take the one she'd reached for.
"Is that an ice cycle in my non-existent pocket, or am I just happy to see you? Neither, I'm just happy to get you wet--with rubber balloons..."