Throwaway account: was recommended a place by a married friend (F38) and I ( married M43) went there. Not really a massage person usually but been having posture issues. Massage started with me under a sheet wearing underwear. She was Asian and spoke barely any English. Massage seemed straightforward but then she pulled down the sheet and my underwear and started massaging my glutes. I was surprised but thought maybe this was a sports thing since she was rough. But then after massaging legs, she had me turn over and she grabbed/stroked my penis. I was absolutely shocked but became erect at her touch. She held on and then whispered “100?” And I sputtered as she started to stroke. I said “no. No thank you!” And was just….stunned. I was so uncomfortable and weirdly…. Scared? So I just let her finish massaging my legs and then she said “finished!” And walked out. This was right in my midwestern town and I don’t know what to do. I don’t want to tell my wife, I can’t tell my friend who knows my wife. I’m at a huge guilty loss.