He did his best to help, putting his arms round Arthur's neck and trying to push up with his legs. Eventually he was upright once again, although how much of it was down to him was debatable. Then he was naked and looking down at the water that was going to hurt like a bastard. His fingers were already tingly, all pins and needles from the warmth in the bathroom and the steam that licked around them both. This was not going to be fun. But he needed to be warm and clean, so he'd just have to cope with it.
He sat rather suddenly on the edge of the bath, his knees deciding to give up, and after a moment or six, he lifted his legs into the bath. And then he yelped as the heat started to work on his feet, jerking backwards involuntarily but just banging into Arthur, who was standing at his back. "Sorry, love," he said quietly, just before an unexpected fit of shuddering hit. He slumped back against Arthur again after that before carefully getting into the bath.
It was painful, it was uncomfortable and if he'd been more awake, he'd have been disgusted at the filth that was coming off of his skin, but over and above all of that, it was warm.