intergender vs same-sexer

intergender

noun
  • A person whose gender identity is midway between male and female. 

adj
  • intergender friendship, intergender wrestling 

  • Being midway between male and female. 

  • Taking place between people of opposite genders. 

same-sexer

noun
  • One who is attracted to, or engages sexually with, members of the same sex; a homosexual 

How often have the words intergender and same-sexer occurred in a corpus of books? (source: Google Ngram Viewer )