Does your dick touch your asshole

A little boy was sitting on his grandpa's lap while his grandpa was smoking a cigar. the boy askes his grandpa, "could I have a drag your cigar?"
The Grandpa says to the little boy, "well can your dick touch your asshole?"
The Little boy says "no" so grandpa tells him he can't have a drag.

The Next day grandpa is sitting on the front porch drinking a beer, the little boy walks up and asks grandpa, "can I have a sip of your beer?"
The Grandpa asks, "well can you dick touch your asshole?" The little boys says "no" so grandpa tells him he can't have any beer.

Two days after that, the little boy is sitting on the deck eating a plate of cookies when Grandpa walks out. Grandpa asks the little boy, "could I have one year cookies?" The Little boy asks his grandpa, "well can your dick touch your asshole?"
The grandpa says "yes it can!"
The little boy says to grandp, "good then you can go fuck yourself!"