First let me say that those who jumped to the conclusion that there was something "inappropriate" (to some) going on with the *******'s involvement need to stop projecting their own fantasies or fetishes on anothers story when you dont have all the info. She obviously has a very good relationship with her ******* where its not just "mom/*******" but have actually become friends as adults (as I was able to become with both my parents) and can talk about things in an adult manner. I applaud that. I know most people dont have that so they cant know.
As a man who has been "playing with (white) wives" for 20yrs (hate the term 'lifestyle') and a massage therapist who has helped many couples "test the waters", whether 'swinging'/adding a 3rd to the mix was their thing, you might want to find a male massage therapist who you think is attractive. Go to their studio, or get housecalls, and try flirting with him after the 2nd session (so you dont potentially "scare him off") since no therapist wants to go down that road without knowing the client some... this gives you some safety in stepping out of your box, and other benefits as well. Wish I could be that massage therapist!! Good luck!!