Another great article, Joe. From extensive personal experience I’d simply comment that MFM doesn’t have to contain discomfort or ambiguity; it depends (as always) on the people involved. I’ve enjoyed hetero MFM with several female partners and a variety of third men and, given we’ve always selected with care, it’s always been astonishingly good for all concerned. Your observation about strong multiple female orgasms appears to be the norm, at least as far as my own anecdotal experience is concerned. There is simply nothing like it for hitting every single pleasure center simultaneously.
….Except maybe triple penetration….