rhubarb - look, I don't feel comfortable saying 'well, yes', because it feels so rude, online.
But, I do think men who pay for sex ... well, they are abusers.
I can see that the situation you describe sounds pretty complicated, though. I think actually I would say it sounds more as if he was being taken advantage of? Because he didn't set out to pay for sex, so it is not the same?
But I wasn't there.
ghostship - I'm sorry, but I think that is ridiculous. I'm not trying to turn anyone into a rape victim, male or female (odd how we've got onto female victims, isn't it? As if you think a man can't be a victim?! When the OP specifically asked about male victims.).
I'm not reversing the power role. It is utter bollocks to claim that a person who is in a position to pay for sex is not in the role of power, and a person selling sex is. It is the kind of sick, victim-blaming crap that legitimizes the whole system of sexual abuse.
How dare you claim people 'choose' to give consent for money? How dare you generalize like that? When you must know (unless you are very, very naive) that this is not a general truth and that there are men and women who are forced into this industry and abused within it?