paperplanes ~
I'm an older Senior Citizen and have been a patron of AMPs here in our Philly area for over 30 years.
After all that time I've learned that if the provider allows me to gradually ease into giving her some strong butt OTC squeezes during the first half of the massage session that eventually she will/may organically get aroused enough to encourage my advances up until I reach paradise - FIV - rather than rebuff me!
Prior to 2023 my experience was like yours, but that has changed "for the better" within the past twelve months.
Go slow and easy with the strong butt squeezes, especially in the beginning and very gradually increase your intensity and she will let you know, by her body language, if she's into receiving your butt attention, or not - "inch by inch, anything's a cinch!"
If she moves closer you are on your way to paradise, and if she moves away then reboot your expectations and enjoy the ride as it is and try a new/different provider next time - we are blessed with so many AMPs here in these parts!!!
What I'm suggesting will work on some of our providers, not all of them.
And, you may need more than your initial visit for FIV?
"If at first you don't succeed, try try again"
Tenacity and persistence will eventually get you what you're ;looking for in the FIV Paradise context!
Happy Hunting and Good Luck!