I [M] had a totally unexpected dry orgasm during legit massage: really wired, DAE experienced it?

A few months ago I went in a 100% legit beauty saloon that I have been using for the last 2 years, and I asked for normal full body massage, and happen to me something really wired and unexpected:

I had massage from Rosa, the massage therapist who already worked on me a few times: Rosa is a really nice lady in her mid 30, very friendly and chatty. With her there has never been anything sexual, just pleasant time and relax.

With Rosa I’m always nude (fairly common in North Italy), she just covers my bits with a drape.

As I had heavy bicycle training the day before, I asked her to focus on my legs, inner thighs, and gluteus.

First I was face-up and she started with my legs, focussing on  quadriceps: I asked to go heavier and stronger than usual as I had really tired legs, and she did as requested. A few times, while going up to my thighs, she slightly touched my scrotum and fhe tip of my penis: this happened also in previous massages with her, and I’m 100% sure it was by mistake.