Sigmund Freud,
Selected Papers on Hysteria and Other Psychoneuroses
(1909)
“ As observed above, coitus interruptus injures the woman if it is practiced 143regardless of the woman’s gratification; it becomes injurious to the man, if in order to bring about the gratification in the woman be voluntarily controls the coitus by delaying the ejaculation. In this manner we can understand why it is that in couples who practice coitus interruptus it is usually only one of them who becomes afflicted. Moreover the coitus interruptus only rarely produces in man a pure anxiety neurosis, usually it is a mixture of the same with neurasthenia. ”
