Anal sex or anal intercourse is generally the insertion and thrusting of the erect penis into a person's anus, or anus and rectum, for sexual pleasure. Other forms of anal sex include anal fingering, the use of sex toys, anilingus, pegging, as well as electrostimulation and erotic torture such as figging. Although anal sex most commonly means penile–anal penetration, sources sometimes use anal intercourse to exclusively denote penile–anal penetration, and anal sex to denote any form of anal sexual activity, especially between pairings as opposed to anal masturbation.
Sexology is the scientific study of human sexuality, including human sexual interests, behaviors, and functions. The term sexology does not generally refer to the non-scientific study of sexuality, such as social criticism.
Sex education, also known as sexual education, sexualityeducation or sex ed, is the instruction of issues relating to human sexuality, including human sexual anatomy, sexual activity, sexual reproduction, safe sex and birth control, sexual health, reproductive health, emotional relations and responsibilities, age of consent, and reproductive rights. Sex education that includes all of these issues is known as comprehensive sex education, and is often opposed to abstinence-only sex education, which only focuses on sexual abstinence. Sex education may be provided as part of school programs, public health campaigns, or by parents or caregivers. In some countries it is known as "Relationships and Sexual Health Education".
A sex toy is an object or device that is primarily used to facilitate sexual pleasure, such as a dildo, artificial vagina or vibrator. Many popular sex toys are designed to resemble human genitals, and may be vibrating or non-vibrating. The term sex toy can also include BDSM apparatus and sex furniture such as sex swings; however, it is not applied to items such as birth control, pornography, or condoms. Alternative terms for sex toy include adult toy and the dated euphemism marital aid. Marital aid also has a broader meaning and is applied to drugs and herbs marketed to enhance or prolong sex.
In human sexuality, a threesome is commonly understood as "a sexual interaction between three people whereby at least one engages in physical sexual behaviour with both the other individuals". Though threesome most commonly refers to sexual activity involving three participants, it is also sometimes used to apply to a long-term domestic relationship, such as polyamory or a ménage à trois.
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.
The Masturbate-a-thon is an event in which participants masturbate to raise money for charity and increase the public awareness and dispel the shame and taboos that exist about this form of sexual activity. From 1998 to 2003, the Masturbate-a-thon raised around $25,000 for women's health initiatives and HIV prevention, education and treatment organizations, and has contributed to debates about safer sex and alternative safe methods of sexual expression. The event awards several honors for those who raise the most money as well as for multiple orgasms and endurance.
A vibrator, sometimes described as a massager, is a sex toy that is used on the body to produce pleasurable sexual stimulation. There are many different shapes and models of vibrators. Most modern vibrators contain an electric-powered device which pulsates or throbs. Vibrators can be used for both solo play and partnered play by one or more people. Devices exist to be used by couples to stimulate the genitals of both partners. They can be applied to erogenous zones, such as the clitoris, the vulva or vagina, penis, scrotum or anus, for sexual stimulation, for the release of sexual frustration and to achieve orgasm. Vibrators may be recommended by sex therapists for women who have difficulty reaching orgasm through masturbation or intercourse.
Women who have sex with women (WSW) are women who engage in sexual activities with other women, whether they identify themselves as lesbian, bisexual, or heterosexual, or dispense with sexual identification altogether. The term WSW is often used in medical literature to describe such women as a group for clinical study, without needing to consider sexual self-identity.
Masturbation is a form of autoeroticism in which a person sexually stimulates their own genitals for sexual arousal or other sexual pleasure, usually to the point of orgasm. The stimulation may involve the use of hands, fingers, everyday objects, sex toys, or more rarely, the mouth. Manual sex may or may not be considered masturbation.
Lesbian sexual practices are sexual activities involving women who have sex with women (WSW), regardless of their sexual orientation. A woman who has sex with another woman may identify as a lesbian if she is exclusively sexually attracted to women, or bisexual if she is not exclusively sexually attracted to women, or dispense with sexual identification altogether. The term may also be applied to a heterosexual or asexual woman who is unsure of or is exploring her sexuality.
Human female sexuality encompasses a broad range of behaviors and processes, including female sexual identity and sexual behavior, the physiological, psychological, social, cultural, political, and spiritual or religious aspects of sexual activity. Various aspects and dimensions of female sexuality, as a part of human sexuality, have also been addressed by principles of ethics, morality, and theology. In almost any historical era and culture, the arts, including literary and visual arts, as well as popular culture, present a substantial portion of a given society's views on human sexuality, which includes both implicit (covert) and explicit (overt) aspects and manifestations of feminine sexuality and behavior.
In the United States, sex education is taught in two main forms: comprehensive sex education and abstinence-only as part of the Adolescent Family Life Act, or AFLA. Comprehensive sex education is also called abstinence-based, abstinence-plus, abstinence-plus-risk-reduction, and sexual risk reduction sex education. This approach covers abstinence as a choice option, but also informs adolescents about age of consent and the availability of contraception and techniques to avoid contraction of sexually transmitted infections. Every state within the U.S. has a mandated AIDS Education Program.
Debby Herbenick is an American author, research scientist, sex educator, sex advice columnist, children's book author, blogger, television personality, professor, and human sexuality expert in the media. Herbenick is a professor at the Indiana University School of Public Health (IUSPH) and lead investigator of the National Survey of Sexual Health and Behavior (NSSHB), which Time called "the most comprehensive survey of its kind in nearly two decades."
Megan Andelloux is a certified sexologist and sexuality educator, accredited through The American Association of Sexuality Educators, Counselors and Therapists (AASECT) and The American College of Sexologists (ACS).
The National Survey of Sexual Health and Behavior is a decade-long nationally representative study of human sexual behavior. The research has been conducted in the United States by researchers from the Center for Sexual Health Promotion in the School of Public Health at Indiana University in Bloomington. Time magazine called the NSSHB "the most comprehensive survey of its kind in nearly two decades and the first to include teenagers." Former U.S. Surgeon General Dr. Joycelyn Elders has written the following about NSSHB findings: "These data are important for keeping the nation moving forward in the area of sexual health and well being. In the absence of scientific data available to construct an accurate and up-to-date view, opinions in the field of sexual science can vary widely from person to person."
The demographics of sexual orientation and gender identity in the United States have been studied in the social sciences in recent decades. A 2022 Gallup poll concluded that 7.1% of adult Americans identified as LGBT. A different survey in 2016, from the Williams Institute, estimated that 0.6% of U.S. adults identify as transgender. As of 2022, estimates for the total percentage of U.S. adults that are transgender or nonbinary range from 0.5% to 1.6%. Additionally, a Pew Research survey from 2022 found that approximately 5% of young adults in the U.S. say their gender is different from their sex assigned at birth.
The American Association of Sexuality Educators, Counselors and Therapists (AASECT) is a professional organization for sexuality educators, sexuality counselors and sex therapists.
Gay sexual practices are sexual activities involving men who have sex with men (MSM), regardless of their sexual orientation or sexual identity. These practices can include anal sex, non-penetrative sex, and oral sex. Evidence shows that sex between men is significantly underreported in surveys.
The orgasm gap, or pleasure gap, is a social phenomenon referring to the general disparity between heterosexual men and women in terms of sexual satisfaction—more specifically, the unequal frequency in achievement of orgasm during sexual encounters. Currently, across every demographic that has been studied, women report the lowest frequency of reaching orgasm during sexual encounters with men. Researchers speculate there are multiple factors that may contribute to the orgasm gap. Orgasm gap researcher Laurie Mintz argues that the primary reason for this form of gender inequality is due to "our cultural ignorance of the clitoris" and that it is commonplace to "mislabel women's genitals by the one part that gives men, but not women, reliable orgasms."
