I have a close friend who has basically fallen for a thai ML.

Now many of you probably would know this lady, so I wont be giving too many details away.
Now my friend basically started seeing this lady privately during the various lockdowns. I suppose whats different is that there is no actual penetrating intercourse between them (to my knowledge).Yes, heavily into pussysliding but nothing inside.
What I also found different is that she loves oral, but never gives it. Now i think is more of a strange sugar daddy arrangement, but he has the $$$ and happy with her, so be it.

What I find disturbing, is that I visited her a few weeks ago at her current work which is a legit shop and for the first time in that shop was offered extras. Admittedly only NHJ, but then I wasn't well know to the shop or the girl.
So I have been visiting twice a week since and last week suggested I should take her for dinner afterwards (I was the last booking). She accepted. So I got the full story (not necessarily true of course) and found she has a "Special Immigration marriage) but doesn't really live with the guy. She actually lives in a share house close to her work. I suggested that she might like to come back to my place for a drink and yup, we ended up naked and fooling around, but NO actual penetrative sex.
I can certainly see what friend likes.

On sunday she was around at my place and suggested maybe we should cut out the shop and she be available to come around on a regular basis. It seems with the lastest covid things are very slow and she would like another regular income. Sure, I agreed. So with todays heat she suggested this afternoon to use my airconditioning. Well in the middle of pussysliding, she actually slipped me in and we went full bore, and I certainly filled her up. This was the first time I have ever heard anything during a session from her and it certainly wasn't fake. She apologised after and told me not to expect it again, it was an accident never to be repeated. (without the bbfs, I may not continue the arrangement)

So, my question, should I tell my friend or not ? She said she has never actually fucked a guy not being a boyfriend for years, even her husband never gets it. I wonder should I even believe her ? I really am not sure...