fondling vs kissing

fondling

noun
  • The act of caressing; manifestation of tenderness. 

  • A pet or person who is fondled; someone who is much loved. 

kissing

noun
  • The act of giving a kiss. 

adj
  • That kisses. 

  • Just touching. 

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