All sex, even consensual sex between a married couple, is an act of violence perpetrated against a woman.

The allegation that Catharine MacKinnon equated sex with rape, or suggested that all sex is hostile, seems to have been first made in the October 1986 issue of Playboy. Catharine MacKinnon has denied ever saying anything of the kind.

Instead MacKinnon asserts that rape and intercourse are "difficult to distinguish" (1983), and that "the major distinction between intercourse (normal) and rape (abnormal) is that the normal happens so often that one cannot get anyone to see anything wrong with it" (1989).