There was this little boy about 12 years old walking down the street dragging a flattened frog on a string behind him. He came to a house of ill repute, and knocked on the door.
When the Madam answered it, she saw the little boy and asked what he wanted. He said, "I want to have sex with one of the women inside. I have the money to buy it, and I'm not leaving until I get it."
The Madam figured, what the hell, so she told him to come in. Once in, she told him to pick any of the girls he liked. He said, "I heard all the men talking about having to get shots after making love with Belinda. THAT'S the girl I want."
Since the little boy was so adamant and had the money to pay for it, the Madam told him to go to the first room on the right.
He headed down the hall, dragging the quashed frog behind him.Ten minutes later he came back, still dragging the frog, paid the Madam, and headed out the door.
The Madam stopped him and asked, "Why did you pick the only girl in the place with a disease, instead of one of the others?"
He said, "Well, tonight when I get home, my parents are going out to a restaurant to eat, leaving me at home with a baby-sitter.
After they leave, my baby-sitter will have sex with me because she's very fond of cute little boys.
She will then get the disease that I just caught.When Mom and Dad get back, Dad will take the baby-sitter home. On the way, he'll jump the baby-sitter's bones, and he'll catch the disease.
Then when Dad gets home from the baby-sitter's,he and Mom will go to bed and have sex,and Mom will catch it.
In the morning when Dad goes to work, the milkman will deliver the milk, have a quickie with Mom, and catch the disease, and HE'S the son-of-a-bitch that ran over my frog!"