after 25 children

Mary and Ted got married and had 13 children. Then Ted died of heart disease.
She married again and she & Bob had 7 more children. Bob was killed in a car accident, 12 years later.
Again Mary remarried and this time she & John had 5 more children.
Mary finally died, after having 25 children.
Standing before her coffin, the preacher prayed for her. He thanked the Lord for this very loving woman and said, "Lord, they are finally together."
Ethel leaned over and quietly asked her best friend, "Margaret, do you think he means her 1st, 2nd, or 3rd husband?"
Margaret replied, "I think he means her legs, Ethel."