In two studies, we examined the relationship between resistance to heteronormativity and political engagement among heterosexuals. In the first, we examined the relationship between awareness of heterosexual privilege, resistance to heteronormativity, and engagement in lesbian and gay rights activism among contemporary heterosexual college students. As expected, women scored higher than men on both heterosexual privilege awareness and resistance to heteronormativity. For women, both heterosexual privilege awareness and resistance to heteronormativity were related to engagement in lesbian and gay rights activism. In the second study, we examined heteronormative attitudes in three cohorts of women spanning 40 years (college graduates in 1951/2, 1972, and 1992), looking at both generational differences in endorsement of heteronormative attitudes and the relationship of these attitudes to engagement in lesbian and gay rights activism. As expected, the two younger cohorts of women were significantly less heteronormative than the oldest cohort. Implications of these results are discussed.