A dwarf goes into a brothel in Hanmburg.
The lady of the night though to herself, "this will be easy money he's not going to be up to much."
The dwarf strips off, puts a spring on each elbow and knee.
Four hours later he finishes and the lady says to him breathlessly...
" how did you manage that?"
He replied...
"it's my four sprung dwarf technique"

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