bigender vs heterosexual

bigender

adj
  • Having a tendency to move between feminine and masculine gender-typed behaviour depending on context. 

  • Having two genders simultaneously: both male and female. 

heterosexual

adj
  • Sexually attracted to members of the opposite sex. 

noun
  • A heterosexual person, or other heterosexual organism. 

How often have the words bigender and heterosexual occurred in a corpus of books? (source: Google Ngram Viewer )