Parable

A young couple, of a conservative Jewish persuasion are anticipating getting married. Their parents, however insist they get married like "Grandpa and Gradma - the right way", so they go to an Orthodox rabbi for instruction. 

After the instruction, the young man addresses the rabbi: ‘Well, Rabbi, I know that in our sect, after the ceremony when there is music and dancing, it is customary for the men to dance with the men, and the women to dance with the women. But this, after all, the 21st century — a new, enlightened age — and I would like your permission to be able to dance with my wife.” 

The rabbi responds: “No, no, no! It is immodest for the man to dance with a woman.” 

Now the young man is concerned about what IS allowed after marriage. So he asks the rabbi, hesitantly, “Well, I suppose that after marriage is it okay have sex?” 

The rabbi quickly responds  “Of course! It is a mitzvah (a blessing). To have children.” 

The young man asks “Any position?” 

 “You’re inferring that there is more than one? But never mind, it is between you and your wife.” 

The young man asks: “Woman on top?” 

The rabbi, with eyes widened, says: “This is an education for me; but, yes, it is between you and your wife!” 

The young man, feeling emboldened, asks: “And can we do it in an airplane, in flight, in the lavatory, in order to join the “mile high club”?” 

The rabbi answers: “I am learning so much from this, but, yes, it is between you and your wife. But make sure to close the door of the lavatory!” 

Then the young man asks: “And can we do it standing up?” 

“NO!” says the rabbi, “you may NOT doing it standing up!” 

“Why not?” says the young man. 

“Because it could lead to dancing!”