The moment when John says wait, and Rodney doesn't immediately stop is very squicky, I agree. There are all sorts of weird issues going on, and I'll probably add an 'abuse' warning too. It's definitely grey area stuff. Do you think it should be tagged as non-con as well? It's just that to me, John consents and keeps consenting, even as things get out of hand. And the ending for me is hopeful, that as screwed up as things are, there is some possibility that it might work out, as to me its clear that this Rodney would be getting some serious therapy, but other people might not read it that way.

Hmm. Maybe 'non-con possibly implied for some' should be added as well.