Incest is sexual intercourse between close relatives that is illegal in the jurisdiction where it takes place and/or is socially taboo. The type of sexual activity and the nature of the relationship between people that constitutes a breach of law or social taboo vary with culture and jurisdiction.
Tribadism (pronounced /ˈtrɪbədɪzəm/ trib-ə-diz-əm) or tribbing, commonly known by its scissoring aspect, is a form of non-penetrative sex in which a woman rubs her vulva against her partner's body for sexual stimulation.
Frottage, more commonly known as dry humping, is the act of achieving sexual pleasure with a partner or partners, whether naked or clothed, without penetration. This can include using almost every part of the body, including the buttocks, the breasts, abdomen, thighs, feet, hands, legs, and sexual organs. Frottage can include mutual genital rubbing, sometimes called genito-genital or GG rubbing, and most of the other forms of non-penetrative sex.
Facesitting, also known as queening, or kinging, is a sexual practice in which one partner sits on or over the other's face, typically to allow or force oral-genital or oral-anal contact. It is common for this position to form part of BDSM, involving dominance and submission, though this need not be the case. Within a BDSM or D/S context, facesitting can be an especially intense form of erotic humiliation.
Erotic spanking (also known as spankophilia) is the act of spanking another person for the sexual arousal or gratification of either or both parties. Activities range from a spontaneous smack on bare buttocks during a sexual activity, to occasional sexual roleplay (such as ageplay) to domestic discipline and may involve the use of a hand or the use of a variety of spanking implements, such as a spanking paddle or cane. Erotic spanking may be administered to bare buttocks or normally dressed. Spanking can involve the use of bondage.
In September 2003 the BBC reported on the 'new' dogging craze.
Uniform fetishism is a clothing fetish where an individual is obsessed and fixated by another or oneself wearing a uniform.
Fisting (sometimes called handballing) is a sexual activity that involves inserting a hand into the vagina or rectum. Once insertion is complete, the fingers either naturally clench into a fist or remain straight. In more vigorous forms of fisting, such as "punching", a fully clenched fist may be inserted and withdrawn slowly. Fisting may be performed with or without a partner.
(Bondage porn, Bondage sex)
Bondage pornography specializes in the depiction of sexual bondage or BDSM activities, as photographs, stories, movies, or drawings.
Detective magazines, comic books and early fetish magazines
In the early 20th century, "Detective magazines" covertly provided a way of publishing bondage imagery. Comic books often featured characters being tied up and tying others up, particularly in "damsel in distress" plots.