“…Behavioral risk HIV and STIs within a sexual encounter (i.e., sexual positioning, serosorting, condom use) among BMSM may also be relative and contextual based upon age, HIV status, partner type, and partner gender (Dangerfield II, Smith, Williams, Unger, & Bluthenthal, 2016). Still, all of these developmental and situational/sexual contexts are nested within larger historical contexts that provide varying risk environments for HIV infection (Dangerfield, Smith, Anderson, et al, 2017; Dangerfield, Smith, Williams, et al, 2017; Elder Jr., 1996; Rhodes, 2002). Specifically, the changing nature of the AIDS epidemic due to increasing prevention options may create varying perceptions of risk for different cohorts of BMSM (Brooks et al, 2011; Dangerfield II, Smith, Anderson, et al, 2017; Hoff et al, 2015; Venkatesh et al, 2010).…”