I’d say it’s perfectly fine to treat for a message. I got a few back a few years ago. I know some places mostly give you the option to go full nudity or not. The thing was my first massage I wasn’t comfortable in doing so. My second Stone massage, I did go Nudist. It was more anticipating for me because I have watched some “Hap Fap” vids at the time. It was also a Woman. But I knew she had no intention and I didn’t either. It was very relaxing although I believe I got sick after my nerves were shocked. Just relax and don’t think about it. Your not in Thailand where it’s a normal thing and most of the videos you see online are all set up and fake. Real actors as you see on videos they have the same lines. Not any more emotion of being excited to do so. It’s really an illusion.