selfcest /ˈsɛlf.sɛst/ noun1 •(slang) Sexual activity with an alternate version of oneself, such as a clone, duplicate, alter ego, or a version of oneself from a different time or alternate universe.Several Loki fans shared their horror over the idea of Loki and Sylvie getting together, as it would be an example of selfcest. — 2021
