Duosexual describes a person who has two or more well-defined sexualities that they switch between (eg. cupiosexual and fraysexual). It is not synonymous with abrosexual because that orientation is very fluid, to the point of not being able to be categorized, where as with duosexual, one’s orientation may only switch between a few genders. In addition, the person experiencing this orientation should have a clear or semi-clear idea of the orientations they are switching between. This is so it can be distinguished from other, more fluid orientations like panflux, aceflux, and biflux.
It may be used by anyone who experiences changing between specific orientations. In theory, any number of orientations may be used with duosexual, but there should not be so many/be so fluid that another term fits better.
The romantic counterpart is duoromantic.
The term was coined by Mod Sto through the Tumblr blog, pride-flags-for-us on or before October 6, 2016.
The duo- flag was created by DeviantArt user blackrhinoceros on or before October 6, 2016. Dark magenta symbolizes royalty, dark blue represents depth, medium sea green represents growth, cyan represents stability, and khaki represents joy.
The term comes from the Latin root du- meaning two, but as with the bi- label, there may be more than two orientations that one switches between.