see someone's etchings vs share a bed

see someone's etchings

verb
  • A clichéd innuendo used in offers to withdraw to a private location for sex, to go to a private location with someone in order to have sexual union 

share a bed

verb
  • To engage in sexual intercourse (with someone). 

  • Used other than figuratively or idiomatically: see share, bed. 

How often have the words see someone's etchings and share a bed occurred in a corpus of books? (source: Google Ngram Viewer )