Here’s my advice. Tell her you have a spine injury so you don’t want the Thai pulling and stretches. Just ask for an oil, relaxation style massage. She’s good at that.
As for the fun stuff, YMMV given what others have shared. Worst case scenario you get an undraped massage from a sexy milf and then go someplace nearby after for a HJ. If you click with her, you should get the HJ - be polite and generous.