I’ve always been of the mindset that if a masseur goes for my goods, then their goods are fair game for me to go for. That said, im usually very clear as to what I’m looking for before the session starts, but if a masseur is nude and willing to provide HE then I assume they are cool with respectful touch. If not, then it’s not a match for me. That said, I know a lot of guys that are turned on by having their masseur fully clothed while they’re (client) in the nude, and don’t reciprocate any touch - guess it all depends on the person.