The couple was watching a Discovery Channel
special about an African black bush tribe whose
men all had penises 24 inches long. When the
black male reaches a certain age, a string is
tied around his penis and on the other end is
a weight. After a while, the weight stretches
the penis to 24 inches.
Later that evening as the husband was getting
out of the shower, his wife looked at him and said,
"How about we try the African string-and-weight
procedure?" The husband agreed and they tied a string
and a weight to his penis .
A few days later, the wife asked the husband, "How
is our little tribal experiment coming along?"
"Well, it looks like we're about half way there,"
he replied.
"Wow, you mean it's grown to 12 inches? "
"No, it's turned black."