Have you ever had or given Uterine Orgasm?

My wife before we were married had a lover that she said could give her a Uterine Orgasm. She said the difference was that she felt two orgasms. One in her vagina and then another at the same time deep in her womb. But that they were separate and distinct. The shallow one ending before the deeper one. I've tried to give her this for many years but never have. In all fairness her old boyfriend sported a thick 10" member that could obviously penetrate her much deeper than my 6 inches.

I'm wondering. Has anyone else ever head of, achieved if you're a woman, or caused if you're a man this type of orgasm?