Stone Cold Pimpin'

Above: The best orgasm I've ever had.
Lifelong sex researcher Kris Saknussemm tells us about his favorite festishes, most of which, even though I spend way too much time on the web, I have never heard of.

Chremastistophilia -- Excitement at being robbed or held up
One British gentleman proudly displayed the scar he received from a knife wound in the course of a mugging -- an event which he said led to a spontaneous ejaculation, the most powerful and substantial he'd ever experienced. (While the sight of the knife wound continues to unhinge me.)