Part of him missed it, when Ernie slipped away. But Zach didn't move. He had heard Ernie, and he knew what it meant, rather literally, but Ernie didn't want to with him. That was the whole reason there was a problem in the first place. If Ernie had honestly wanted him, then they could have...whatever. Any of it.
But Ernie didn't.
And until that changed, Zach didn't want a hand or anything else. He wanted to be wanted. Zach rather thought that was hardly anything to ask for given how much, how..., Ernie had been...with...
Oh Merlin, but it was over, at least for then. Zach sank into the tub, naked and aroused, and just let the water pour over him until it was icy cold. He still wasn't quite sure what had happened.