Some women use their feet to walk. Which is kind of silly when you stop to think about it. While the more pragmatic of the species understand the foot's money generating potential. Demi Marx falls into the latter category and has always taken steps -if you'll pardon the pun- to broaden her sexual repertoire. Realizing the foot's role in the art of penile stimulation, and vis-a-vis, the generous men who reward such effort, Demi spent many grueling hours in the gym performing tip toe raises to strengthen her arches. And the dividends have obviously paid of to where Demi's now financially independent and no longer needs to humor the greasy fat men with filthy propositions who approach her on the street.