NERD PORN: Bondage Benefits: BDSM Practitioners Healthier Than 'Vanilla' People
Despite the fact that their sexual preferences are listed in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders as potentially problematic, people who play with whips and chains in the bedroom may actually be more psychologically healthy than those who don't.
Neurologist Vilayanur S. Ramachandran proposed that foot fetishism is caused by the feet and the genitals occupying adjacent areas of the somatosensory cortex, possibly entailing some neural crosstalk between the two. Ramachandran has noted amputees reporting orgasms in their feet. WIKIPEDIA