- "Oh, baby."
- —Emily Young engaged in sex.
In biology, sex is a process of combining and mixing genetic traits. Often it results in the specialization of organisms into a male and female variety, and is how most races reproduce.
Variation among racesEdit
Among the Goa'uld, it is taboo for two Goa'uld hosts to have unprotected sex, as it would lead to the birth of a harcesis, an individual who possesses all the knowledge of the Goa'uld. With all the knowledge a harcesis could easily jeopardize the Goa'uld power structure by simply sharing the fact that they are not gods and how their technology worked. For this reason producing a harcesis was an unspoken taboo among Goa'uld and if known to exist were hunted down and killed with impunity. (SG1: "Maternal Instinct") The Asgard were one notable race who, instead of utilizing sex, reproduced through Cloning.
In 2010, Matthew Scott and Vanessa James had sex in a closet in Icarus Base. (SGU: "Air, Part 1") Later that year, Colonel Everett Young (while in the body of Colonel David Telford) had sex with his wife Emily Young via the Ancient Long-range communication device. Due to Destiny dropping out of FTL while this was transpiring, Col. Telford momentarily switched back to his own body in the middle of intercourse, leaving him utterly shocked. (SGU: "Earth")