Like a Bulldog

A man and his son were talking about sex.
The son asked his father, "dad, what does a pussy look like?
The dad asked him, before or after sex?
Ummmm, before sex, the kid replied. The dad said, "have you ever seen a beautiful red rose with soft red petals?

Yeah said the son.
Well, what about after sex? said the son.
His dad replied, "have you ever seen a bulldog eating mayonnaise..