A ninety-year-old man lived in a rest home and got a weekend pass. He stopped in his favourite gay bar and sat at the end and ordered a drink. He noticed a seventy year old man at the other end of the bar and he told the bartender to buy the young man a drink. As the evening progressed, the old man joined the man and they went to his apartment, where they got it on.
Four days later, the old man noticed that he was developing a drip, and he headed for the rest home doctor. After careful examination the doctor asked the old man if he had engaged in sex recently.
The old man proudly said, "I sure did!"
The doctor asked if he could remember who the man was and where he lived.
"Sure, why?"
"Well you'd better get over there, you're about to cum!"