It was unfortunate, but three women died together in an accident and went to heaven.

When they got there, St. Peter said, "We only have one rule here in heaven: don’t step on the ducks!"

They walk through the pearly gates, and sure enough, there are ducks all over the place.

It seems almost impossible not to step on a duck.  They do their best to avoid them, but the first woman accidentally steps on one.
 
So along comes St. Peter with a very unattractive man.  

St. Peter chained them together and says, "Your punishment for stepping on a duck is to spend eternity chained to this man!"
 
The following day, the second woman accidentally steps on a duck and sure enough along comes St. Peter.

With him is another extremely unattractive man. As he chains them together he again explains this punishment.
 
Well the third woman has observed all this and, not wanting to be chained for all eternity to an extremely unattractive man, is very, very careful where she steps.

She manages to go months without stepping on any ducks.

But one day St. Peter comes up to her with the most handsome man she has ever laid eyes on: tall, with beautiful eyes and every muscular. St. Peter chains them together without saying a word.

The very happy woman says, "I wonder what I did to deserve being chained to you for all of eternity?"

The handsome man says, "I don’t know about you, but I stepped on a duck."