Duosex is an internal sense of gender of being both male and female.
The only requirements to be duosex are to feel both male and female and to have gender dysphoria about not being perceived or not having the body of both binary sexes. Duosex is similar to Bigender, but duosex is a connection to male and female, while bigender is a connection to any two genders.
History
Duosex was originally proposed on r/truNB on Reddit some time around July 15. 2021. Because it was made by truscum, FANDOM user atlasjv/tumblr user mysticsnowstorm decided to reclaim the term on August 16, 2021, making it inclusive and giving it a flag. The reclaimed version of duosex has no association with truscum.
Flag
The Duosex flag was created by on August 16, 2021, by tumblr user mysticsnowstorm/FANDOM user Atlasjv.
The colors and meanings of the flag's stripes are as follows:
Blue: acceptance and inclusivity
White: The variety of gender identities a duosex individual may have
Purple: The combination of male and female