A doctor had the reputation of helping couples increase the joy in their sex life. So one day, Mr. and Mrs. Browns came to him. After some thorough physical exams, psychological exams, and various tests, the doctor told them, "Yes, I believe I can help you..."
"On your way home, please stop at the grocery store and buy some grapes and some doughnuts. Then go home, take off your clothes, and you, sir, roll the grapes across the floor until you make a bulls eye in your wife's love canal. Then on hands and knees you must crawl to her like a leopard and retrieve the grape using only your tongue."
"Then next ma'am, you must take the doughnuts and from across the room, toss them at your husband until you make a ringer around his love pole. Then like a lioness, you must crawl to him and consume the doughnut."
The couple went home and did what they were told, and since then their sex life has become more enjoyable. They told their friends the Blacks to see this doctor. But the doctor declined them and said, "I cannot help you; I believe your sex life is as good as it will ever be..."
The Blacks pleaded with him, "We were referred to you by our friends the Browns. You helped them; please, please help us."
"All right", the doctor said. "On your way home from here, stop at the grocery store for some apples and a box of Cheerios; then practice what I told your friends..."