Sexual intercourse is a sexual activity typically involving the insertion and thrusting of the male penis inside the female vagina for sexual pleasure, reproduction, or both. This is also known as vaginal intercourse or vaginal sex. Sexual penetration has been known by humans since the dawn of time, and has been an instinctive form of sexual behaviour and psychology among humans. Other forms of penetrative sexual intercourse include anal sex, oral sex, fingering and penetration by use of a dildo, and vibrators. These activities involve physical intimacy between two or more people and are usually used among humans solely for physical or emotional pleasure. They can contribute to human bonding.
The sexual revolution, also known as the sexual liberation, was a social movement that challenged traditional codes of behavior related to sexuality and interpersonal relationships throughout the developed Western world from the 1960s to the 1970s. Sexual liberation included increased acceptance of sex outside of traditional heterosexual, monogamous relationships. The normalization of contraception and the pill, public nudity, pornography, premarital sex, homosexuality, masturbation, alternative forms of sexuality, and the legalization of abortion all followed.
The views of the various different religions and religious believers regarding human sexuality range widely among and within them, from giving sex and sexuality a rather negative connotation to believing that sex is the highest expression of the divine. Some religions distinguish between human sexual activities that are practised for biological reproduction and those practised only for sexual pleasure in evaluating relative morality.
Female ejaculation is characterized as an expulsion of fluid from the Skene's gland at the lower end of the urethra during or before an orgasm. It is also known colloquially as squirting or gushing, although research indicates that female ejaculation and squirting are different phenomena, squirting being attributed to a sudden expulsion of liquid that partly comes from the bladder and contains urine.
Sex manuals are books which explain how to perform sexual practices; they also commonly feature advice on birth control, and sometimes on safe sex and sexual relationships.
Theodoor Hendrik van de Velde was a Dutch physician and gynæcologist who served as director at the Gynæcological Institute in Haarlem.
Hypoactive sexual desire disorder (HSDD), hyposexuality or inhibited sexual desire (ISD) is sometimes considered a sexual dysfunction, and is characterized as a lack or absence of sexual fantasies and desire for sexual activity, as judged by a clinician. For this to be regarded as a disorder, it must cause marked distress or interpersonal difficulties and not be better accounted for by another mental disorder, a drug, or some other medical condition. A person with ISD will not start, or respond to their partner's desire for, sexual activity. HSDD affects approximately 10% of all pre-menopausal women in the United States, or about 6 million women, 1.5% of men and an unstudied amount of gender non-conforming people.
The Ethical Slut is a self-help book about non-monogamy written by Dossie Easton and Janet Hardy. In the book, Easton and Hardy discuss non-monogamy as a concept and a practice, and explore sexual practices and common challenges in non-monogamous relationships.
Casual sex is sexual activity that takes place outside a romantic relationship and implies an absence of commitment, emotional attachment, or familiarity between sexual partners. Examples are sexual activity while casually dating, one-night stands, prostitution or swinging and friends with benefits relationships.
India has developed its discourse on sexuality differently based on its distinct regions with their own unique cultures. According to R.P. Bhatia, a New Delhi psychoanalyst and psychotherapist, middle-class India's "very strong repressive attitude" has made it impossible for many married couples to function well sexually, or even to function at all.
Frederica Mathewes-Green is an American author and speaker, chiefly on topics related to Eastern Orthodox belief and practice.
Sandstone Retreat, officially the Sandstone Foundation for Community Systems Research, was a clothing-optional, open sexuality resort for swingers located at Sandstone Ranch, a 15-acre (6.1 ha) estate in the Santa Monica Mountains overlooking Malibu and the Pacific Ocean.
The Act of Marriage: The Beauty of Sexual Love is a self-help book, written by Christian writers Tim LaHaye and Beverly LaHaye.
Peggy Joy Kleinplatz is a Canadian clinical psychologist and sexologist whose work often concerns optimal sexuality, opposition to the medicalization of human sexuality, and outreach to marginalized groups. She is a full professor of medicine and clinical professor of psychology at the University of Ottawa.
Ira Leonard Reiss was an American sociologist with primary interests in studying the way society impacts sexual attitudes and behaviors and how people respond to those pressures. He also had interests in the study of gender and family, particularly as they relate to sexuality. He attended Syracuse University for his B.S. degree and the Pennsylvania State University for his M. A. and Ph. D. degrees. His major area in graduate school was sociology and his minor areas were cultural anthropology and philosophy. His doctoral course work in sociology and philosophy was done at Columbia University and his French and German language study was taken at Yale University.
Oragenitalism is a book by the American folklorist Gershon Legman, published by the Julian Press in 1969. The book describes various types of oral sex. The book is intended as "instruction manual, conduct guide, and household advice book". The author claimed that it was the earliest book of its kind on the subject, and for a long time the only one. Its contents are divided into four sections: "Cunnilinctus" written under the pen-name Roger-Maxe de la Glannege and published by Jacob Brussel of New York in 1940; the three remaining sections "Fellatio", "Irrumation", and "Sixty-Nine" were not published until 1969.
Eustace Chesser was a Scottish psychiatrist, social reformer and writer.
Sex and Repression in Savage Society is a 1927 book by anthropologist Bronisław Malinowski. It is considered "a famous critique of psychoanalysis, arguing that the 'Oedipus complex' described by Freud is not universal." Malinowski gives a partial explanation of the role of sex in social organization through the synthesis of psychoanalysis and anthropology, considered competing academic disciplines at the time. The book is considered an important contribution to psychoanalysis, which Malinowski acknowledged was a "popular craze of the day."
I have never been in any sense a follower of psycho-analytic practice, or an adherent of psycho-analytic theory; and now, while impatient of the exorbitant claims of psycho-analysis, of its chaotic arguments and tangled terminology, I must yet acknowledge a deep sense of indebtedness to it for stimulation as well for valuable instruction in some aspects of human psychology.
Sexual arousal describes the physiological and psychological responses in preparation for sexual intercourse or when exposed to sexual stimuli. A number of physiological responses occur in the body and mind as preparation for sexual intercourse, and continue during intercourse. Male arousal will lead to an erection, and in female arousal, the body's response is engorged sexual tissues such as nipples, clitoris, vaginal walls, and vaginal lubrication.
Al-Wishāḥ fī Fawāʾid al-Nikāḥ is an Arabic literary work of sexology and sex education written by the Egyptian Muslim scholar Jalal al-Din al-Suyuti in the late 15th century. It has been called the apex of its genre of Islamically based sex and marriage manuals in Arabic, a form of literature that originated in 10th-century Baghdad. The work is one of a number of such works written by Al-Suyuti dealing with sex, the others including Nawāḍir al-Ayk fī Maʻrifat al-Nayk, Nuzhat al-Mutaʾammil, and Shaqāʾiq al-Utrunj fī Raqāʾiq al-Ghunj.
