No masseur is going to do a blow job on a client they don't ask for or agree to.
It's a chore for them
They're not doing it unless it's asked for/agreed for the price.
And the price would be agree beforehand. And what was included would v likely be understood.
Anyway, there are real, legitimate masseurs who do massages, and masseurs who are essentially sex workers)l/in brothels. You don't book that type accidentally.
You know what you're booking when you book that type. You have to go looking for them.
Now onto his claim that he was infected with clamydia and gonorrehea from a blowjob. That's extremely unlikely.
I think you can get clamydia in your mouth/throat from doing a blowjob on an infected man.
I don't think a man can get it from receiving a blow job. Or it's extremely unlikely.
Gonorrehea is probably similar.
Anyway, it seems very very unlikely that he got those two from a blowjob.
Far far more likely he got them from sex.
I notice when people are forced to admit to cheating, they always admit the absolute minimum they think they can admit.
Men often say "it was a blow job" because they think that's less "serious" and major than sex.
He now knows the "colleagues' cups & cigarettes" excuse is not working, so he's got to admit to sexual contact with someone. It can't be his choice so he has to say it was pushed on him (yeah right), and not planned/intentional/his choice. And it was "only" a BJ.
Reality, it was likely penetrative sex.
It was entirely his choice.
It was probably not once.
Oh and even if he was the unluckiest man who got twk STDs from a BJ ...... If a masseur starred doing a sex act on you - uninvited and unexpected, and that means you were now cheating (and having a sex act on you that you didn't want) ; wouldn't you stop them immediately??
Just how many STDs can you get from one second of oral sex on you?
It's BS anyway.