is a pronounced sexual interest in feet
It is the most common form of sexual fetishism 
and is more prevalent in men than women

Extensions of this fetish include shoes and tickling
Sigmund Freud considered foot binding as a form of fetishism
For a foot fetishist, points of attraction include the shape and size of feet & toes
(e.g long toes, short toes, painted toenails, high arches, soles etc)
jewellery (e.g toe rings, anklets, etc.)
treatments (such as massaging, washing partner's feet, or painting toenails)
state of dress (barefoot, high heels, hosiery, socked feet, etc)
odor, and/or sensory interaction
(e.g., rubbing the foot, tickling, smelling, kissing, licking, sucking toes etc.)

LOVE my totsies? 

Foot Fetishism or Podophilia