I’m firmly in the belief that unless it’s something your partner has agreed is ok and even endorses it’s cheating. Personally if my wife told me she wanted a massage with a happy ending I would be more than comfortable with her getting one, and it would be hypocritical of me to feel otherwise as I’d happily have one myself.
I know for her though it would be a hard boundary, so it’s not actually something I’ll ever do as I know she wouldn’t be happy with it.
If hubby did ask if he could have a happy ending massage i would say no way. Any sort of intimate sexual experience outside of our relationship i would consider as cheating and i would never agree to that.
I have never had a happy ending from a massage, and think it may cross a line within our relationship. My wife and I regularly get massages from a local shop, each with our separate masseuse. Having a professional and on going relationship with our people means a certain degree of trust and limits. I would never ask my massage therapist for a happy ending, as it would change the dynamic between us. And the thoughts of my wife’s therapist touching her privates also crosses a line that should not be traversed.
But, a funny thing that comes to mind. If we were away on a vacation, and each were getting massages, and a happy ending was given, it might be viewed differently, because this would be with someone who we would have no relationship with and never see again. Strange !
From what I understand, real massage therapists don’t do “happy endings.” If a place does offer sexual services, it’s usually an illegal brothel disguised as a massage parlour.
So my feelings don’t really matter here. If my partner wants to to go waving their bits around in a shady “massage parlour”, instead of asking for intimacy? Then they’re probably the wrong partner for me.
Just had my happy ending massage from hubby this afternoon, and more. Very enjoyable thank you very much 
I have certainly never been offered one, or felt like one was being suggested.
Wouldn’t be surprised if it is more common than thought though. It would certainly be a market.
Like I say, from what I know (admittedly not much, but probably enough) it’s strictly no-no on licensing in UK/US/EU. So it’s either in Asia/Africa/Middle East, where I’m not sure what the laws are, or it’s an unlicensed premises.
For me it would be too far if in a relationship.
If you are single do what you like, but if you have a partner it is poor form…
my opinion of course.