Sex and sexuality in speculative fiction

The examples and perspective in this article may not represent a worldwide view of the subject. You may improve this article, discuss the issue on the talk page, or create a new article, as appropriate. (May 2012) (Learn how and when to remove this message)

Sexual themes are frequently used in science fiction or related genres. Such elements may include depictions of realistic sexual interactions in a science fictional setting, a protagonist with an alternative sexuality, a sexual encounter between a human and a fictional extraterrestrial, or exploration of the varieties of sexual experience that deviate from the conventional.

Science fiction and fantasy have sometimes been more constrained than non-genre narrative forms in their depictions of sexuality and gender. However, speculative fiction (SF) and soft science fiction also offer the freedom to imagine alien or galactic societies different from real-life cultures, making it a tool to examine sexual bias, heteronormativity, and gender bias and enabling the reader to reconsider their cultural assumptions.

Prior to the 1960s, explicit sexuality of any kind was not characteristic of genre speculative fiction due to the relatively high number of minors in the target audience. In the 1960s, science fiction and fantasy began to reflect the changes prompted by the civil rights movement and the emergence of a counterculture. New Wave and feminist science fiction authors imagined cultures in which a variety of gender models and atypical sexual relationships are the norm, and depictions of sex acts and alternative sexualities became commonplace.

There is also science fiction erotica, which explores more explicit sexuality and the presentation of themes aimed at inducing arousal.