A German visiting London asks a hooker for a shag. After making the proposition, she tells him it’s fifty quid. “Fine” he says, “but I’m a bit kinky”. She agrees that this is OK so long as he doesn’t do anything violent.
They return to her flat and he gets out four big springs attached to some straps. “I want you to put one of these on each elbow and one on each knee” he insists. The hooker is worried that she’s getting into something a bit heavy, but she goes along with his request. She is then told to get down on all fours, naked, in front of him which she does grudgingly. He asks her to start bouncing up and down on the springs and finally he takes a duck call whistle from his pocket. “Blow on this while I’m shagging you” he tells her.
He’s banging away while she’s bouncing on the springs, blowing the duck whistle. Suddenly she starts to enjoy the shagging, so much that she experiences the most fantastic orgasm she’s ever experienced.
After they’ve finished she gasps “Wow, that was the most fantastic sex I’ve had in 25 years on the game, how the hell did you make it so good?”
“Ah” the German replies while smiling “it’s what I calk my Foursprung Duck Technique”.