Fetishism is a fixation on an inanimate object or body part that is not primarily sexual in nature, and the compulsive need for its use in order to obtain sexual gratification. The object of a fetish is almost invariably used during masturbation and may also be incorporated into sexual activity with a partner in order to produce sexual excitation. Inanimate object fetishes can be categorized into two types: form fetishes and media fetishes.

In a form fetish, it is the object and its shape that are important, such as in the case of high-heeled shoes.

In a media fetish, it is the material out of which the object is made that is important, such as silk or leather. Inanimate object fetishists often collect the object of their favor, and may go to great lengths, including theft, to acquire just the "right" addition for their collection.

Festish Objects
Although the list of objects that fetishists can use for sexual gratification is inexhaustible, among the more common inanimate objects are panties, bras, slips, stockings or panty hose, negligees, shoes, boots and gloves. Common media objects include leather, rubber, silk, or fur.

In some cases drawings or photographs of the fetish object may arouse fetishists, but more commonly the fetishist prefers or requires an object that has already been worn. The worn object does not serve as a symbolic reminder of the former owner, however, because it is the object that the fetishist relates to, not the person attached to it. Sometimes it is a body part, such as hair, feet, legs or buttocks that become fetish objects.

Fetishism — Sexual Acts Depersonalized
The sexual acts of fetishists are characteristically depersonalized and objectified, even when they involve a partner. The focus of attention is exclusively on the fetish, whereas non-fetishists may at various times make a particular body part or an object part of their general sexual arousal and expression with another person, but not be fixated on it.

In some cases, the fetishist can become sexually aroused and orgasmic only when the fetish is being used. In other instances, a sexual response may occur without the fetish, but usually at a diminished level. When the fetish object is not present, the fetishist often engineers sexual arousal by fantasizing about it.