Sexual Putting
Great Grnadfather had been playing golf whenever possible for over 78 years.
Today had been no exception, he was out early and played his 18.
Directly after golf he attended his great, great grandson's wedding.
During the wedding reception, he was conversing with his great, great grandson, giving advice on having a happy marriage and a great life.
After a while the young groom said "Grandfather what's it like making love when you reach your age."
And he replied, "Well, its kinda like putting with a rope."