"The Good Wife" joke

Morris comes home to find his wife, Sadie, crying. "I found out from Mrs. Goldberg that you've been having an affair with that chippie secretary in your office. Why would you do that to me? Haven't I always been the good wife? I've cooked for you, raised your children, and I've always been by your side for thirty-five years. What haven't I done to make you happy?"
Embarrassed, Morris confesses, "It's true, Sadie, you've been the best wife a man could hope for. You make me happy in all ways but one. You don't moan when we have sex!"
"If I moaned when we had sex, you'd stop running around? All right, come to the bedroom so I can show you that I, too, can moan during sex!"
So they retire to the bedroom, get undressed, and climb beneath the sheets.
As they begin to kiss, Sadie asks, "Now, Morris, should I moan now?"
"No, not yet."
Morris begins fondling Sadie. "What about now? Should I moan now?" No, I'll tell you when," he says.
He climbs on top of Sophie and begins to have intercourse.
"Is it time for me to moan, Morris?"
"Wait, I'll tell you when."
Moments later, in the heat of passion, seconds before reaching climax, Morris yells, "Now, Sadie, moan! MOAN!"
"OY! You wouldn't believe what a day I had!"