"Female heterosexuality is not a biological drive or an individual woman’s erotic attraction or attachment to another human animal which happens to be male. Female heterosexuality is a set of social institutions and practices defined and regulated by patriarchal mores, values, and law."

Marilyn Frye, Willful Virgins: Essays In Feminism, 1976-1992 – Willful Virgins or Do You Have to Be a Lesbian to Be a Feminist?, Crossing Press, 1992