eroticize vs sex up

eroticize

verb
  • To make erotic. 

sex up

verb
  • To make more sexually attractive. 

  • To enhance in terms of fashionable appeal. 

  • To sensationalize. 

  • To arouse somebody sexually 

  • To take part in sexual acts with. 

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