ABSTRACTThis study utilizes interview data and a communication accommodation framework to explore how early midlife gay men negotiate HIV infection risk vis-à-vis a younger gay male sexual culture that has evolved in terms of its regard for dangers associated with HIV infection. Analysis of face-to-face interviews with 33 gay men (aged 40–53) in four U.S. cities revealed a model of gay intergenerational sexual (non)accommodation. The model includes forms of communicative convergence and nonaccommodating behavior that serve some men’s achievement or continuation of sexual vitality and/or positive generational distinctiveness. Similarities and extensions to communication accommodation theory are discussed, as are the model’s implications for understanding some gay men’s management of sexual health at midlife.