The conventional wisdom that influences university policy on what is considered valid sexual consent has undergone radical change over the past twenty years. Valid consent being the criteria that makes subsequent sexual behavior morally justified because the consent is morally transformative in the way that matters. Affirmative consent policies are now being used increasingly at universities across the country, as well as forming the basis for legislation in some U.S. states. University policies that define affirmative consent are varied, but policies (...) generally require the consent to be voluntary, conscious, unambiguous, and ongoing. The consent can be communicated verbally or behaviorally as long as it is clear and continues throughout the sexual encounter. I will argue against both the unambiguous and ongoing requirements of sexual consent. I contend that we should reject the affirmative model of sexual consent because of the problems with these requirements and I then offer some reasons in favor of returning to a lack of dissent model of sexual consent. (shrink)