I have a hobby friend who did an MFM with me and my wife. He posted about it on here.
https://home.ourhome2.net/showthread...rpt-and-BB-fun
I also had an MFM with him and a great provider.
https://home.ourhome2.net/showthread...ghlight=grimes
Had another MFM with him and MistyCC, but that was before the OH2 boom. Review is on Eccie.
Had another one just a few months ago with DallasRain and her friend.
https://home.ourhome2.net/showthread...as-Double-Team
Outside the hobby, had many many many MFM's starting when I was in college. Long long ago.