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Human sexuality and sexual practices

160 articles

Mustang Ranch

Mustang Ranch is a licensed legal brothel in Storey County, Nevada, near Reno; the name also denotes Joe Conforte's original ranch, Nevada's first legal brothel (1971), seized by the federal government in 1999 and reopened in 2003 by Lance Gilman at a new Wild Horse Canyon site.

Nanjing Sister Hong incident

Nanjing Sister Hong incident: July 2025 Chinese scandal in which a 38-year-old Nanjing man surnamed Jiao, posing online as 'Sister Hong' (红姐), allegedly secretly filmed sex with up to 1,691 men and sold the videos, distinct from unrelated Hong Kong cases.

Navel fetishism

Navel fetishism (alvinophilia, alvinolagnia) is sexual attraction to the navel, a form of abdominal partialism; about 3% of body-part fetish preferences in a large survey, a paraphilia rather than a disorder absent distress.

Necrophilia

Necrophilia: sexual attraction to or abuse of corpses; a rare paraphilia classified as an other specified paraphilic disorder in DSM-5, with Rosman and Resnick's 122-case typology and varied laws across jurisdictions.

Nudity and sexuality

Nudity and sexuality covers how cultures link the unclothed body to sexual meaning: naturism, Elias's civilizing process, the artistic nude, US nudity law, body-image research, and digital consent.

Object sexuality

Object sexuality (objectum sexuality, objectophilia) is a sexual orientation involving romantic and sexual attraction to inanimate objects such as bridges or the Berlin Wall; research links it to autism and object-personification synaesthesia, and it is not a DSM-5 or ICD-11 diagnosis.

Omnisexuality

Omnisexuality (omnisexualité) is a multisexual orientation defined by attraction to people of all genders, with gender playing a role in attraction, distinguishing it from gender-blind pansexuality; first recorded in 1959.

OneTaste

OneTaste: San Francisco sexual-wellness company (2004) founded by Nicole Daedone and Robert Kandell around trademarked orgasmic meditation, a 15-minute clitoral stroking practice; leaders convicted of forced labor conspiracy in 2025.

Oral sex

Oral sex, mouth-to-genital stimulation (fellatio, cunnilingus, anilingus), is practiced by over 85% of US sexually active adults. It transmits many STIs including gonorrhea, syphilis, and HPV (linked to 60-70% of oropharyngeal cancers), while HIV risk is much lower than from anal or vaginal sex.

Orgasm (ργασμός)

Orgasm (Greek ὀργασμός) is the climax of sexual arousal, with intense pleasure and rhythmic pelvic muscle contractions. Key facts: no standard definition, Masters and Johnson's four-phase response cycle, and a 22–30 point orgasm gap between men and women.

Panpan girls (パンパンガール)

Panpan girls (パンパンガール) were street prostitutes of occupied Japan, 1945–1952, serving mainly US soldiers; about 70 percent were yo-pan, with RAA facilities, GHQ venereal exams, and the amezo label following.

Pedophilia

Pedophilia (paedophilia), associated with Krafft-Ebing's Psychopathia Sexualis (1886), is persistent sexual attraction to prepubescent children; DSM-5 and ICD-11 diagnose pedophilic disorder only when urges are acted on or cause distress, distinct from child sexual abuse.

Pegging (sexual practice)

Pegging is anal penetration of a partner with a strap-on dildo, originally a woman penetrating a man. Term coined in Dan Savage's 2001 Savage Love reader vote; de Sade described the act in 1795; guidance covers lubricant, flared-base toys and condoms.

Pelvic thrust

Pelvic thrust: forward rhythmic pelvic movement used in dance styles (Trobriand mweki/Tapioca Dance, bucking, twerking), stage dance (Time Warp, jerk), and the barbell hip-thrust exercise.

Pencil test (breasts)

Pencil test (breasts): folk test placing a pencil under an unsupported breast; if it stays, a bra is advised. Attributed to Ann Landers, spread by mid-20th-century magazines, later recast as a sagging or breast-lift criterion and widely criticized as unreliable.

Pepper Schwartz

Pepper Schwartz (born 1945) is an American sociologist and sexologist, University of Washington professor emerita, author of American Couples and Peer Marriage, AARP love expert, and Married at First Sight panelist.

Perversion

Perversion: former psychiatric and sexological term for pathological, non-procreative sexuality, rooted in medieval perversity, systematized by Krafft-Ebing's Psychopathia Sexualis (1886), replaced by paraphilia in DSM-III (1980).

Phallus

Phallus: the erect penis as cultural symbol, distinct from the anatomical penis. Sacred imagery attested some 30,000 years back; Greek fertility deities, Roman apotropaic amulets, the Vindolanda wooden phallus, and psychoanalytic theory.

Phone sex

Phone sex: erotic conversation by telephone, intimate or commercial, including voice, video, and text forms. Covers 1980s dial-a-porn origins, 900-number billing, per-minute rates, operators, and recording law.

Pornography

Pornography: sexually explicit media intended to cause sexual excitement, spanning ancient erotica to the internet industry. Covers effects research, performer health, and 2025 age-verification laws in the UK, US, and EU.

Pornography in China

Pornography in China: production, sale, and distribution are criminalized under Criminal Law Articles 363-367 with campaign enforcement and online filtering, while private consumption persists via imported material; covers legal thresholds, crackdowns, and research.

Pornography in the United States

Pornography in the United States: sexually explicit media, legal as free speech unless obscene or child pornography under the Miller test, a $10-12 billion industry, now reshaped by state age-verification laws upheld in Free Speech Coalition v. Paxton (2025).

Predicament bondage

Predicament bondage (困境束縛) is an advanced BDSM restraint form where the bound person must continuously choose between uncomfortable positions; relieving one strain increases another. Distinct from static bondage by its built-in dilemma.

Prostitution

Prostitution, also called sex work for consensual adult exchanges, is the exchange of sexual services for compensation. Key facts: four legal models (criminalization, Nordic model, legalization, decriminalization), Sweden's 1999 buyer-only ban, New Zealand's 2003 decriminalization, and health evidence on policing.

Prostitution in Hong Kong

Prostitution in Hong Kong: selling sex is not itself illegal, but brothel keeping, living on earnings of prostitution, and controlling sex workers are Crimes Ordinance offences, producing the one-woman brothel model and colonial-era regulation history.

Prostitution in Macau

Prostitution in Macau: selling sex is not criminalized but organized prostitution is not legalized; migrant women on tourist or entertainer visas dominate saunas and hotels, with trafficking enforcement under penal code Article 153-A.

Prostitution in Singapore

Prostitution in Singapore is not itself a crime, but solicitation, pimping, brothel-keeping, and trafficking are offences under the Women's Charter; over 100 licensed brothels operate mainly in Geylang, under a system rooted in the 1870 Contagious Disease Ordinance.

Prostitution in South Korea

Prostitution in South Korea is banned under the Act on the Punishment of Arrangement of Commercial Sex Acts (성매매처벌법), which punishes buying, selling, arranging, and financing sex while protecting victims. Its history includes state-sponsored US camptown (kijich'on) prostitution, disease-control clinics, and 2025 litigation against the US military.

Prostitution in the Philippines

Prostitution in the Philippines: criminalized under Revised Penal Code Article 202 until RA 11862 (2022) repealed it; now prosecuted mainly under the Anti-Trafficking in Persons Act (RA 9208), which treats sellers as victims and targets exploiters.

Rachel Uchitel

Rachel Uchitel, American nightclub VIP concierge, became known in 2009 when the National Enquirer alleged an affair with Tiger Woods; she denied it, settled for a reported $8 million, and confirmed the affair in HBO's 2021 Tiger docuseries.