The little boy and the dead frog

So there was a little boy about thirteen or fourteen walking around town dragging a dead frog on a string.
When sees a brothel he walks in and up to the counter and asks the madam for a girl.
She laughs and says no immediately, the boy says I am more than willing to pay!
The madam looks at him and says sure for 300.00.
The boy then pulls out a big wad of money and hands her 300.00 and says I want a girl with herpes.
The madam ecstatic she got double the money said of course and sent him to room 3.
After ten minutes the boy walks out and asks the madam for a girl with genital warts.
She tells him it will cost him 400.00 and he has to tell her what the dead frog on a string is for.
He tells her he will pay but will not give any information about the frog.
She agrees and sends him to room 7.
He comes out fifteen minutes later to ask the madam for a woman who has almost every disease, she tells him that she has as many as you can get, he asks her how much.
She thinks for a minute and says 1000.00
The boy agrees and pulls out the money and stuffs the rest in his pocket.
They go to room 1 and do the deed.
As he is pulling on his clothes she stops to ask him where he got all the money and what the deal with the dead frog is.
At first he is hesitant but finally gives in.
The boy says "well when I get home the baby sitter is going to have sex with me" " that's not so bad what are you doing here then!?" Says the madam. " then when my parents get home my dad will take the babysitter home and have sex with her, then my dad will return home and have sex with my mom, after my father leaves for work tomorrow my mother will have sex with the mail man." The boy says at the brink of tears. "i still don't see why you purposely gave your self all these diseases" the boy looks at her and says with tears in his eyes "THATS THE MOTHER FUCKER THAT KILLED MY FROG!!!"