Tickle fetishism
Tickle fetishism, also known as knismolagnia, knismophilia, or titillagnia, is a paraphilia where an individual receives sexual pleasure from tickling, being tickled, or watching someone be tickled. Individuals may prefer to be the dominant party, known as a ler, or the submissive party, known as a lee, or they may enjoy both, known as a switch. Some people may prefer to be tickled in specific areas, typically in an erogenous zone or other particularly sensitive areas of the body.
Restraint, bondage, and sexual humiliation may be aspects of an erotic tickling session, though they are not necessary. A BDSM tickling session can involve submissive partners being tied or restrained in a position that exposes bare parts of the body, particularly those that are sensitive to tickling, such as the feet or armpits. The body being exposed can also be intended as a form of humiliation or exhibitionism for the lee, or as visual stimulus for the ler. Tools may be used to tickle if desired.