An elderly couple goes to the doctor for a checkup. The doctor asks the husband if sex is still good, and if he has any questions.



"In fact, I do," said the old man. "After having sex with my wife I am usually hot and sweaty, and then, after I have sex with her the second time, I am usually cold and chilly?"



Surprised he can still do it twice, the Doc then sees the wife. After examining the elderly wife, the doctor said, "Everything appears to be
fine. Do you have any medical concerns that you would like to discuss with me?"



The lady replied that she had no questions or concerns.



The doctor then said to her: "Your husband has an unusual concern. He claims that he is usually hot and sweaty after having sex with you the first time, and then cold and chilly after the second time. Do you know why?"



"Crazy old man," she replies. "That's because the first time is usually in July and the second time is in December!"