Does anyone know of any providers that offer GB?  or do any providers bring a male companion for a MFM session ever?  Would love to be a part of that someday

Hey there,
you may want to reach out to Jewel and Johnson, they have some great reviews and often post when they are available in Waltham for group fun.

Here is a recent Backpage ad and a link to their site and reviews.

http://boston.backpage.com/FemaleEscorts/mfm-fun-today-with-sexy-couple-40/19923007

http://oceanjewel.escort-site.com/

TER ID: 182054
Maybe that will help.  

Her name is Alexus Hardings. Sex kitten and open minded to many things. She is actually planning a GB session soon. Check her out at www.alexushardings.com . Here is a link to her reviews also http://www.theeroticreview.com/reviews/show.asp?id=178129