The supposed obviousness of sex as a natural fact attests to how deeply its production in discourse is concealed. The sexed body, once established as a natural fact, is the alibi for constructions of gender and sexuality, which then purport to be the just-as-natural expressions or consequences of sex. In Butler's account, it is on the basis of the construction of natural binary sex that binary gender and heterosexuality are likewise constructed as natural. Butler claims that without a critique of sex as produced by discourse, the sex/gender distinction as a feminist strategy for contesting constructions of binary asymmetric gender and compulsory heterosexuality will be ineffective.