"You see that cow out in the pasture? Well go screw it." A little puzzled the boy says, "OK, anything for my love" On his return of doing his deed, he asks, "Now can I marry your daughter?" "Nope." says the father, "See that goat over yonder? Well, Go screw it." Again the boy obliges and returns saying, "Now can I marry your daughter?" "Nope. Not yet -- one more thing. See that pig in the sty? Well go to it." Once again he obliges and returns. This time the farmer is amazed at seeing this boy doing these deeds just to marry his daughter.
So the father finally tells the boy, "Now you can marry my daughter." To which the boy replies, "SCREW YOUR DAUGHTER, HOW MUCH YOU WANT FOR THAT PIG?"