This is a review and critical commentary on Michael Plaxton's 2015 book, Implied Consent and Sexual Assault, in which he proposes that the legal definition of sexual consent be amended to permit sexual partners to define the terms and conditions of sexual consent in accordance with private "normative commitments" between themselves. The proposed "reform" is intended to permit an individual to agree to be a party to sexual activity that would otherwise constitute sexual assault under Canadian law. For reasons explained (...) in the review, this reviewer concludes that Plaxton's proposal and the rationale he presents in support of its adoption are unpersuasive. (shrink)