Bisexuality refers to sexual behavior with or physical attraction to both sexes (male and female), or a bisexual orientation. People who have a bisexual orientation can experience sexual, emotional, and affectional attraction to both their own sex an

Amateur pornography is a category of pornography that features models or actors performing without pay, or for whom this material is their first or only paid modeling work. Reality pornography is professionally made porn which seeks to emulate the st

The Alliance Theory (or General Theory of Exchanges) is the name given to the structural method of studying kinship relations. It finds its origins in Claude Lvi-Strauss's Elementary Structures of Kinship (1949), and is opposed to the functionalist t

A gang bang typically is a form of group sex where a person has sexual relations with three or more partners and is not to be confused with a threesome. Gang bangs vary in activity, but most gang bangs include sexual intercourse, oral sex, and mastur

Alimony, maintenance or spousal support is an obligation established by divorce law in many countries that is based on the premise that both spouses have an absolute obligation to support each other during the marriage (or civil union) unless they ar

At common law, alienation of affections is a tort action brought by a deserted spouse against a third party alleged to be responsible for the failure of the marriage. The defendant in an alienation of affections suit is typically an adulterous spouse

Algolagnia (pronounced /?lɡ??l?ɡni?/) (from the Greek ??, algos, pain, and ?, lagnia, lust) is a sexual tendency which is defined by deriving sexual pleasure and stimulation from physical pain, particularly involving an erogenous zone. It is distinct

In 1928, the Province of Alberta, Canada, passed legislation that enabled the government to perform involuntary sterilizations on individuals classified as mentally deficient. In order to implement the Sexual Sterilization Act of Alberta in 1928, a f