Underwear fetishism is a sexual fetishism relating to undergarments , and refers to preoccupation with the sexual excitement of certain types of underwear, including panties, stockings, pantyhose, bras, or other items. Some people can experience sexual excitement from wearing, while others get their excitement when observing, handling, or smelling the underwear worn by another, or watching somebody putting underwear on or taking it off. Some may steal used underwear to get satisfaction. Underwear fetishism is not considered as paraphilia unless it causes distress or serious problems for the person or those associated with them. To determine relative prevalences of different fetishes, Italian researchers obtained an international sample of 5, individuals from fetish-themed discussion groups. The relative prevalences were estimated based on a the number of groups devoted to a particular fetish, b the number of individuals participating in the groups and c the number of messages exchanged.