Sex is the biological trait that determines whether a sexually reproducing organism produces male or female gametes. During sexual reproduction, a male...

Thug Sex (Elli Kokkinou album), 2005 Sex (Telex album), 1981 Sex (The Necks album), 1989 Sex (The 1975 EP), 2012 Sex (Tila Tequila EP), 2007 Sex (Vintage...

Disorders of sex development (DSDs), also known as differences in sex development or variations in sex characteristics (VSC), are congenital conditions...

practiced: vaginal sex, anal sex, and oral sex (mouth-on-genital or mouth-on-anus). Sex acts may also be part of a fourth category, manual sex, which is stimulating...

Cunnilingus is oral sex performed on the vulva while fellatio is oral sex performed on the penis. Anilingus, another form of oral sex, is oral stimulation...

Same-sex marriage, also known as gay marriage, is the marriage of two people of the same legal sex. As of 2024,[update] marriage between same-sex couples...

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...

Free sex can refer to: Promiscuity, undiscriminating casual sex with many sexual partners Group sex Human sexual activity that does not cost money (as...

The XY sex-determination system is a sex-determination system used to classify many mammals, including humans, some insects (Drosophila), some snakes...

Sexing or gender identification is the process of determining the sex of an individual animal. Through sexing, biologists and agricultural workers determine...