Dicey prospect. I once was messing with this divorcee who'd remarried.
Part of the reason she cheated on her new husband was he was a freaking Oompa Loompa (no kidding, he was fat and short). The other was that, after her first divorce, she was feeling down. A friend recommended a masseur. She got him and and said it was the best massage she ever had.
Then, on the third visit, he started 'touching' and it led to full service. She asked her friend about 'was this why you recommended him' and she said "yes all the wives use him". Of course, that kind of chilled her out on him, as the other wives were....um...not so hott. She was DAMN fine, even at 45 she was still rocking (and fucked like an energizer bunny). The masseur introduced her to anal and she took to it like a champ. But once she knew what was going on, she kinda flipped a little. First stopped using him, then went bonkers having affairs on her new husband (who she married for cash...but really because he got her pregnant, she as a no cover pro).
So you're a masseur. You start messing with the hot ones. Then the uglies want it too. And if you don't - boy that can be trouble.