melt someone's butter vs win over

melt someone's butter

verb
  • To appeal to someone's fancy. 

  • To turn someone on; cause feelings of arousal. 

win over

verb
  • To persuade someone, gain someone's support, or make someone understand the truth or validity of something. 

How often have the words melt someone's butter and win over occurred in a corpus of books? (source: Google Ngram Viewer )