This case study, an example of scholarship of teaching and learning (SoTL) research, explores student motivations to collaborate with both peer teams and community partners in a service-learning course. Written by one instructor and three undergraduates, the article draws on personal narratives, student reflections, and a postcourse student survey. Our experiences and findings suggest that in courses like these positive extrinsic factors motivate students to collaborate in ways that the extrinsic motivators in typical assignments do not, helping to foster trust and shared goals. We also share our work as an example of how to include student voices in SoTL work.