An elderly couple are sitting on the porch of their farmhouse.

The old man reaches over, grabs his wife's breast and says

"You know dear, if these things worked we wouldn't need the cow", and laughs and laughs!

The old man then reaches over to his wife's crotch and says

"You know dear, if this thing worked we wouldn't need the chickens", and laughs and laughs!

The wife reaches over, grabs her husband's crotch and says

"You know dear, if this thing worked we wouldn't need your brother!!!!"