Deltan

Sexuality has been a significant theme in the various Star Trek television and motion-picture series. Sexual relationships in Star Trek have mostly been depicted as heterosexual in nature. There have been depictions of bisexual relationships, but always with a twist (e.g. using versions of characters from a mirror universe instead of the "real" ones; female Trill Dax and Kahn in "Rejoined" had been a heterosexual couple in their former lives).

Inter-species and inter-ethnic relationships have been commonly depicted. A comparatively broader range of views has been shown with respect to monogamy, polygamy, and the institution of marriage. Inasmuch as sexuality can lead to reproduction, some plots have revolved around the possibility of children in a given inter-species relationship, as well as the prejudice that the resulting children have to endure from their parents' societies. The representations reflect contemporaneous attitudes to sexuality of American metropolitan culture, first during the sixties and then in later decades of the twentieth century.

Many major species in the Star Trek universe are depicted as having mainly monogamous, heterosexual marital relationships. Major characters who became married to each other include Keiko and Miles O'Brien, Worf and Jadzia Dax, Leeta and Rom, Tom Paris and B'Elanna Torres, William Riker and Deanna Troi, and Jean-Luc Picard and Beverly Crusher (in the alternate future of the episode "All Good Things..."). Other characters noted as being married include Leonard McCoy (divorced before both the original series and the events of Star Trek, he remarries during the course of the original series), Beverly Crusher (widowed before the beginning of Star Trek: The Next Generation), Katherine Pulaski, Benjamin Sisko, Tuvok, and T'Pel. The Doctor, a holographic individual, spent time with his own holographic family and got married to a human woman in the alternate timeline from which Admiral Janeway returns. James Kirk, experiencing memory loss, marries a Native American woman, Miramanee. The marriage lasts for several months, until Miramanee's death. The wedding of two crewmen commences but is interrupted in "Balance of Terror."

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