Although criminologists have long recognized the role that peers play in crime, the specific mechanisms responsible for this relationship have been difficult to isolate. Drawing from the perspectives of differential coercion and social support and differential association, we examine how one type of coercion among friends - conflict - moderates the peer deviance/crime relationship. Using dyadic data, greater levels of conflict are related to higher levels of deviance and conflict weakens the peer deviance-crime relationship. Overall, conflict plays a dual role by relating to higher amounts of deviance while jointly reducing the influence of peer deviance on crime.