Sometimes, but not always. You have to ask yourself whether it is worth playing the long game with someone newer or being flirty with an experienced MMS.
In my long game reverse, I may put clothing back on and create a friendly vibe with a newer person. I have sometimes been rewarded with them calling their spa sisters in for me to massage them as I am a told that I am a good therapist. It opens up the whole shop for varying levels of UTR fun in future visits with all of them. They have even disrobbed for me to do a better job while their spa sisters watch me or join in for four hands. They really appreciate a good massage. In the long game, they get used to that with you. If you are at a legit place, you occasionally get to be that first person at spa that brings them over to the dark side. it is really "only you" for a short time and you have to enjoy that while it lasts.
My best MMS friend owns a few spas on the East Coast. Our routine was always me doing a reverse as she enjoys my techniques between her texting and talking on her four phones. She deliberately gives me full access, DFK and would even let me attempt to body slide (not sexy if you were watching me fellas, but she likes my efforts). But she will halt any activity that could put me over the edge. Passive denial with the intent of edging is the best way to describe it. When she sees that look in my eyes, she give me a real hug, gets back into her formal MMS attire and sends in the newest person to deal with all my built up tension. She's even called one of her therapist over to her house so we can do our normal dance. Like
@mayfair2 said, all women want to feel sexy and she know that I continue to find her sexy after knowing her for a decade
And just like Mayfair said, don't PM for her identity. She's a legitimate friend that no longer lives in NYC even though she owns a spa here managed by her jealous boyfriend. He hates me so I think he knows something is up between us.