She had at first rejected Russell's offer of marriage. In common with some radical women of her generation, she felt the laws regulating marriage contributed to women's subjugation. In her view, only parents should be bound by a social contract, and only insofar as their co-operation was required for raising their children. Implicit was her conviction that both men and women were polygamous by nature and should therefore be free, whether married or not, to engage in sexual relationships that were based on mutual love. In this she was as much an early sexual pioneer as in her fight for women's right to information about, and free access to, birth control. She regarded these as essential for women to gain control over their own lives, and eventually become fully emancipated.