Every year, Bob goes hunting during bear season. One year, Bob goes hunting, and shoots a small brown bear. Then, the mother of that small brown bear comes up to him and says, " I'll give you two choices, I'll either kill you, or make love to you, but I won't let you go."
Bob thinks on this, and decides he wants to live, so the mother bear then makes love to him.
The next year, Bob goes hunting again, but this time, he shoots the mother bear that he was forced to make love to the year before. He shoots her, and her mother comes after Bob, and again, gives him the choice. "I will make love to you, or kill you, which will it be??"
Again, Bob makes love to a bear.
The next year, Bob goes once again for revenge, and kills the bear that he was forced to make love to the year before.
This time, her sister comes up to Bob and says, "You don't come here for the hunting, do you??"