libidinosity vs titillation

libidinosity

noun
  • Lustful desires, characterized by lewdness; sensuality; lascivity. 

titillation

noun
  • A pleasurable or sexually exciting sensation. 

  • The process or outcome of titillating. 

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