his gold sarcophagus had earrings which only female depictions had
its a whole rabbit hole of whether they re-used statues of a female in their rush to bury him so young
or maybe female bodies were a symbol of life giving etc
or maybe they were trans
or maybe his line were just inbred and womanly
since similar female bodies are on statues of his father akhenaten etc
also
http://www.youtube.com/watch?v=lk5iMgG-WJI