tantalize vs titillate

tantalize

verb
  • to tease (someone) by offering something desirable but keeping it out of reach 

  • to bait (someone) by showing something desirable but leaving them unsatisfied 

titillate

verb
  • To stimulate or excite sensually 

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