Serosorting provides an alternative to condom use and thus addresses the problem of safer-sex “fatigue.” However, there are challenges to this approach, which relies on informed decisionmaking regarding selection of lower-risk partners. This study, conducted in 2009, tested a brief, one-on-one, peer counselor–delivered intervention based on informed decision making to address the limitations of serosorting. In Atlanta, Georgia, 149 at-risk men were randomly assigned to standard care or an intervention arm that addressed serosorting. The intervention was based on conflict theory, which prepares people for informed decision making and creates a “teachable moment,” wherein participants are more open to change. The results at follow-up showed that men in the serosorting intervention reported fewer sexual partners, increased condom use, and greater efficacy in assessing HIV risk. The authors concluded that serosorting is feasible and low-cost and could have an impact on the HIV intervention.