Foot fetishism, foot partialism, foot worship, or podophilia is a pronounced sexual interest in feet. It is the most common form of sexual fetishism for otherwise non-sexual objects or body parts.

Characteristics

Foot fetishism has been defined as a pronounced sexual interest in the feet or footwear. Sigmund Freud considered foot binding as a form of fetishism. For a foot fetishist, points of attraction include the shape and size of the foot and toes (e.g., long toes, short toes, polished toenails, high arches, soles etc.), jewelry (toe rings, ankle bracelets, etc.), treatments (such as pedicures or massaging), state of dress (barefoot, flip flops, etc.), odor, and sensory interaction (e.g., smelling the foot, licking, kissing, tickling, etc.)

(Source: WiKiPedia)