Most wives did not know what an orgasm was let alone have one.
Then came the early 1970s when woman began to protest against male dominance and they wanted equality....we're not going to lie down on our backs and receive good old fashioned missionary....we also want to be on top. How about some cowgirl in the bedroom. We'll dictate the depth and the frequency said the faithful wives to there husbands.
Then came the 80's when woman began to educate their husbands on what a clitoris is. Thus woman began to have orgasms in the bedroom, that's if her husband stroked it the right way.
Then came the 90's when wives began to educate their husbands that there is such a thing as a g-spot.
Hello.... The sexual revolution had begun.
Then came the year 2000 and the education of the one hour orgasm, the venus butterfly.
Today its a whole new ball game. Woman want orgasms and lots of them.
Gone are the days when a man gets into bed naked, lifts up his wifes night gown and climbs on top for his own selfish pleasure.
Gentleman those days are over. Woman are requesting, "please sir may I have some more." They want multiple orgasms and if you won't give it to them they'll find someone else who would.
So gentlemen if you don't know where your wife's clitoris and g-spot is you better go ask professor "google". Instead of watching porn on the internet try reading cosmo.
Sadly today 10% of woman have never experienced an orgasm. There must still be a generation of selfish men who have no idea what foreplay is and who only know the missionary position.