
Sixty-nine or 69, also known by its French name soixante-neuf (69), is a group of sex positions in which two people align themselves so that each person's mouth is near the other's genitals, each simultaneously performing oral sex on the other. The participants are thus mutually inverted like the numerals 6 and 9 in the number 69, hence the name. This position can involve any combination of sexes.

Anilingus is the oral and anal sex act in which a person stimulates the anus of another by using the mouth, including lips, tongue, or teeth. It is also called anal–oral contact and anal–oral sex, and is additionally known by slang names.

Bukkake is a sex act in which one participant is ejaculated on by multiple participants. It is often portrayed in pornographic films.

The centerfold or centrefold of a magazine refers to a gatefolded spread, usually a portrait such as a pin-up or a nude, inserted in the middle of the publication, or to the model featured in the portrait. In saddle-stitched magazines, the centerfold does not have any blank space cutting through the image.

A chub is an overweight or obese gay man who identifies as being part of the chubby culture. Although there is some overlap between chubs and bears, chubs have their own distinct subculture and community. There are bars, organizations and social events specifically catering to this subculture, which allows members of the community to socialize with each other and develop social networks.

Clothed female, naked male (CFNM) is a genre of erotica based on the real or imagined interaction of one or more nude men and one or more clothed women.

Creampie is a sexual act, commonly featured in pornography, in which a male ejaculates inside his partner's vagina or anus without use of a condom, resulting in visible seeping or dripping of semen from the vagina or anus.

A cum shot is the depiction of human ejaculation, especially onto another person. The term cum shot is usually applied to depictions occurring in pornographic films, photographs, and magazines. Cum shots have become the object of fetish genres like bukkake. Facial cum shots are currently regularly portrayed in pornographic films and videos, often as a way to close a scene. Cum shots may also depict ejaculation onto another performer's body, such as on the genitals, buttocks, chest or tongue.

Fellatio is an oral sex act involving a person stimulating the penis of another person by using the mouth, throat, or both. Oral stimulation of the scrotum may also be termed fellatio, or colloquially as teabagging. If fellatio is performed on oneself, the act is called autofellatio.

Doggy style is a sex position in which a person bends over, crouches on all fours, or lies on their abdomen, for sexual intercourse, other forms of sexual penetration or other sexual activity. Doggy style is a form of a rear-entry position, others being with the receiving partner lying on the side in the spoons sex position or the reverse cowgirl sex position. Non-penetrative sex in this position may also be regarded as doggy style.

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. In addition to oral-genital and oral-anal contact, the position also leaves the bottom partner's hands free to stimulate other erogenous zones. The top partner may be facing either direction in this position. 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 a form of erotic humiliation.

A facial is a sexual activity in which a man ejaculates semen onto the face of one or more sexual partners. A facial is a form of non-penetrative sex, though it is generally performed after some other means of sexual stimulation, such as vaginal sex, anal sex, oral sex or masturbation. Facials are currently regularly portrayed in pornographic films and videos, often as a way to close a scene.

A fluffer is a person employed to keep a porn performer's penis erect on the set. After setting up the desired angle, the director asks the actors to hold position and calls for the fluffer to "fluff" the actors for the shot. These duties are considered part of the makeup department. While fluffing does not necessarily involve touching the actors, it could entail sexual acts such as fellatio or non-penetrative sex.

Gay-for-pay describes male or female actors, pornographic stars, or sex workers who identify as heterosexual but who are paid to act or perform as homosexual professionally. The term has also applied to other professions and even companies trying to appeal to a gay demographic. The stigma of being gay or labeled as such has steadily eroded since the Stonewall riots began the modern American gay rights movement in 1969. Through the 1990s, mainstream movie and television actors have been more willing to portray homosexuality, as the threat of any backlash against their careers has lessened and society's acceptance of gay and lesbian people has increased.

A glory hole is a hole in a wall or partition, often between public lavatory cubicles or adult video arcade booths and lounges, for people to engage in sexual activity or observe the person in the next cubicle while one or both parties masturbate.

Gokkun (ごっくん) is a Japanese term for sexual activity in which a person, usually a woman, consumes the semen of one or more men, often from some kind of container. "Gokkun" can also refer to the sexual act of swallowing semen after performing fellatio or participating in a bukkake. The word "gokkun" is onomatopoetic, and translates roughly as the English word "gulp", the sound made by swallowing.

The term "Golden Age of Porn", or "porno chic", refers to a 15-year period (1969–1984) in commercial American pornography, which spread internationally, in which sexually explicit films experienced positive attention from mainstream cinemas, movie critics, and the general public. It began with release of the 1969 film Blue Movie directed by Andy Warhol, and the 1970 film Mona produced by Bill Osco. These films were the first adult erotic films depicting explicit sex to receive wide theatrical release in the United States. Both influenced the making of films such as 1972's Deep Throat starring Linda Lovelace and directed by Gerard Damiano, Behind the Green Door starring Marilyn Chambers and directed by the Mitchell brothers, 1973's The Devil in Miss Jones also by Damiano, and 1976's The Opening of Misty Beethoven by Radley Metzger. According to Warhol, Blue Movie was a major influence in the making of Last Tango in Paris, an internationally controversial erotic drama film, starring Marlon Brando, and released a few years after Blue Movie was made.

A "pearl necklace" is slang for a sexual act in which a man ejaculates semen on or near the neck, chest, or breast of another person. The term originates from the way the deposited semen resembles a necklace of translucent white pearls.

Cock and ball torture (CBT), penis torture or dick torture is a sexual activity involving application of pain or constriction to the penis or testicles. This may involve directly painful activities, such as genital piercing, wax play, genital spanking, squeezing, ball-busting, genital flogging, urethral play, tickle torture, erotic electrostimulation, kneeing or kicking. The recipient of such activities may receive direct physical pleasure via masochism, or emotional pleasure through erotic humiliation, or knowledge that the play is pleasing to a sadistic dominant. Many of these practices carry significant health risks.

In human sexuality, a threesome is any sexual activity that involves three people at the same time. Though threesome most commonly refers to casual sexual activity involving three participants, it may also apply to a long-term domestic relationship, such as polyamory or a ménage à trois.

Twink is gay slang for a young man in his late teens to early twenties whose traits may include: general physical attractiveness; little to no body or facial hair; a slim to average build; and a youthful appearance that may belie an older chronological age.