Agree with @IntuitiveTactile - if and when I am lucky enough to click with a masseur, I truly enjoy kisses, be they wonderful deep welcoming kisses or just light brushes on my back, my ass, or my abs/pecs or my ears, my NECK, etc. I find it a MAJOR extreme turn on because if initiated by the masseur it means more than if I initiated it and he just goes along.
Those who are offended, just close your mouth and turn your head, murmur sorry. Those who are receptive, go for it, albeit respectfully, and let it simply develop.