Before her latest tantrum (which made me had to pitch the toys), I had a few male toys for pleasure, and I believe I think I felt what you were talking about.
Sadly I had to use visualization with it but OMFG, the funny thing is once I did this the wall came down leading to be able to orgasm by hand.
It was the use of a male vibrating plug, an octopuss male vibrating toy and the use of my hand provide pressure in all the right places.
It was fucking awesome and it was weird to me since it was a male orgasm that went on for several minutes and I was spent for the next hour plus.
If that is a taste of what you described or what women feel during intercourse ... I am deeply jealous of you all :-) [not an evil jealous ... maybe amazed is a better word].