When presented with the opportunity to give a back
massage to a dancer
with a shaved head
wearing a velvet
shirt, do not under any circumstances
turn it down.
The variety of stimulating surfaces and textures can perpetuate interest indefinitely. Besides which, when you're done, you have the gratitude of a dancer (with above-named characteristics), something more valuable than its weight in porn.
Just watching them stretch afterwards made it all worth it.