Old Motor!
>
> The marriage of an 80 year old man and a 20 year old woman was the talk of
> the town. After being married a year, the couple went to the hospital for
> the birth of their first child.
>
> The attending nurse came out of the delivery room to congratulate the old
> gentleman and said, 'This is amazing. How do you do it at your age?'
>
> The old man grinned and said, 'You got to keep the old motor running.
>
> The following year, the couple returned to the hospital for the birth of
> their second child. The same nurse was attending the delivery and again went
> out to congratulate the old gentleman.
>
> She said, 'Sir, you are something else. How do you manage it?'
>
> The old man grinned and said, 'You gotta keep the old motor running..'
>
>
> A year later, the couple returned to the hospital for the birth of their
> third child.
>
> The same nurse was there for this birth also and, after the delivery, she
> once again approached the old gentleman, smiled, and said, 'Well, you surely
> are something else! How do you do it?'
>
> The old man replied, 'It's like I've told you before, you gotta keep the old
> motor running.'
>
> The nurse, still smiling, patted him on the back and said: 'Well, I guess
> it's time to change the oil. This one's black.'
>