Billy turns 16 and dad decides it's time fer him to learn the facts of life... so he gives billy 20 bucks and sends him into town to see Lil; the town's Madame.
On the way he stops at grandma's and once she discovers what his mission is, she tells him to keep the 20; and show's him for free.
On his return, Dad inquires as to his journey and discovers Granma's trangression.
"WHAT!!!! you screwed my MOTHER????" he shouts. "Why not??.." Billy replies. "You screwed mine."
ta-dum
Hang
