German in London, picks up a prostitute "I vill pay you £60 for kinky sex, Ya?" She thinks what the heck
I need the money. Off they go to an hotel room
He says " take off your clothes, he then takes out 4 springs from his coat and says "put one of zees on each of your hands and knees. He then tells her to get down on all fours
"Now put this duck whistle in your mouth and start to blow" she does so and starts hopping around the room on the springs
He strips of and copulates with vigour
She reaches the best climax of her life
When they finish she says "That was fantastic, what do you call it ?"
He says" in Germany we call it four sprung duck technique"
