Lesbian Sex Mafia

The Lesbian Sex Mafia (LSM) is an information and support group for bisexual women and lesbians interested in sexual activities involving BDSM, fetishes, costumes, etc. Founded in 1981 by Jo Arnone and Dorothy Allison, it is located in New York City.

The LSM works "to organize for [women's] sexual desire as strongly as we have tried to organize for our sexual defense". The name was deliberately chosen "in the same spirit of humor as the Ladies Sewing Circle and Terrorism Society."