Nothing exercises such power over the imagination as the nature of sexual relationships, and the pornographer has it in his power to become a terrorist of the imagination, a sexual guerilla whose purpose is to overturn our most basic notions of these relations, to reinstitute sexuality as a primary mode of being rather than a specialised area of vacation from being and to show that the everyday meetings in the marriage bed are parodies of their own pretensions, that the freest unions may contain the seeds of the worst exploitation.