cheesecake vs curiosa

cheesecake

noun
  • Imagery of scantily clad, sexually attractive young women; pin-ups. 

  • A pie made of sweetened and flavoured cottage cheese or cream cheese, eggs and milk on a crunchy base. 

curiosa

noun
  • Curiosities, especially erotic or pornographic books or articles. 

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