The Quote Investigator http://quoteinvestigator.com/tag/virginia-woolf/ traces the origin of such statements to The Intimate Notebooks of George Jean Nathan (1932), where the diarist states:
We were sitting one morning two Summers ago, Ferenc Molnár, Dr. Rudolf Kommer and I, in the little garden of a coffee-house in the Austrian Tyrol. “Your writing?” we asked him. “How do you regard it?” Languidly he readjusted the inevitable monocle to his eye. “Like a whore,” he blandly ventured. “First, I did it for my own pleasure. Then I did it for the pleasure of my friends. And now — I do it for money.”
Misattributed
“You mustn't force sex to do the work of love or love to do the work of sex.”
Dottie in Ch. 2
The Group (1963)
Help us to complete the source, original and additional information
Mary McCarthy 79
American writer 1912–1989Related quotes
“People who love science fiction really do love sex.”
“I need sex for a clear complexion, but I'd rather do it for love.”
Source: My Way of Life
“Sex without love is as hollow and ridiculous as love without sex.”
“The difference between sex and love is that sex relieves tension and love causes it.”
“Do you want to have sex? I think we should have sex. CASUAL sex.”
Source: Scott Pilgrim, Volume 6: Scott Pilgrim's Finest Hour
On kissing scenes in films, as quoted in " You want to do sex in your house with your door open http://www.punemirror.in/pune/cover-story/You-want-to-do-sex-in-your-house-with-your-door-open/articleshow/49875892.cms" Pune Mirror (22 November 2015)
“Don't knock masturbation. It's sex with someone you love.”
Source: Standup Comic