Lukas lives with his grandparents. Both grandparents are very old and a little bit deaf.
One day, Laura asks Lukas,
"How are your grandparents doing?"
Lukas,
"Sound as a bell; they have oral sex every day."
Laura is shocked and fascinated,
"How did they do that?"
Lukas continues,
"Every night before bed Grandpa shouted at Granma: 'Fu*k you!'
And Granma shouted back: 'Fu*k you too!'"