An old man and a young woman fall in love, but after trying to have sex a number of times the old man cannot stay erect.
They finally go to the doctor and he convinces the old man to have a new experimental procedure, in which an elephant's trunk glands are inserted into his dick, so he can stay erect when they make love.
He loves her, so he decides to try it, and it works! So they plan to get married, and he's invited over to her mother's house for dinner.
At the dinner table when her mother is in the kitchen the girl get horny and reaches under the table and opens the old man's pants and takes his dick out to play with it, but she quickly removes her hand when her mom returns from the kitchen with the food.
But, just as the mother puts the old man's plate down in front of him, the man's unzipped elephant dick suddenly reaches out, over the table and grabs a potato from his plate and pulls it quickly back under the table.
The astonished and dumbfounded mother finally says to the old man, "I can't believe what I just saw, can you do that again?" And the man says, "I'm sure I could, but I don't think I have room in my ass for another potato!"
