RichThesaurus
dip one's pen in someone's inkwell
vs
do the nasty
dip one's pen in someone's inkwell
verb
To have sex with (someone).
do the nasty
verb
To engage in sexual intercourse.
How often have the words
dip one's pen in someone's inkwell
and
do the nasty
occurred in a corpus of books?
(source:
Google Ngram Viewer
)