centerfold vs sex bunny

centerfold

noun
  • Any very sexually attractive person, who is therefore material for such a photograph. 

  • A large photograph printed on this sheet, typically in the form of a nude, or provocatively dressed, sexually attractive woman or man. 

  • The person appearing in such a photograph. 

  • The single sheet of paper that forms the middle two pages of a magazine or other publication. 

sex bunny

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