By the end of the Augustan period Ovid, Rome's leading literary figure, was alone among Roman figures in proposing a radically new agenda focused on love between men and women: making love with a woman is more enjoyable, he says, because unlike the forms of same-sex behavior permissible within Roman culture, the pleasure is mutual.[43] Even Ovid himself, however, did not claim exclusive heterosexuality[44] and he does include mythological treatments of homoeroticism in the Metamorphoses,[45] but Thomas Habinek has pointed out that the significance of Ovid's rupture of human erotics into categorical preferences has been obscured in the history of sexuality by a later heterosexual bias in Western culture.[46]