This study investigates the attitudes and perceptions of school stakeholders, specifically principals and teachers, regarding the implementation of Comprehensive Sexuality Education (CSE) in primary schools. It focuses on junior grades (grades 3-7) in Mashonaland in the Eastern Province of Zimbabwe. Given the increasing prevalence of child marriages, sexual abuse, and early pregnancies, delivering CSE effectively is crucial. This research uses a qualitative approach rooted in the interpretive paradigm and informed by Urie Bronfenbrenner's socio-ecological theory to explore stakeholders' perspectives on the dynamics of CSE implementation. Through a case study design, semi-structured interviews were conducted with twelve participants, including school principals and teachers, to shed light on systemic barriers that hinder effective CSE integration. These barriers include ambiguous policy frameworks, entrenched cultural beliefs, resource constraints, and inadequate training. Despite generally positive attitudes towards CSE, the study reveals persistent challenges that undermine its successful integration into the curriculum. To address these issues, the study advocates for collaborative stakeholder engagement in curriculum development, emphasising community support and ownership. Furthermore, targeted initiatives such as in-service training for principals and teachers, along with the provision of adequate teaching materials, are recommended to enhance implementation efficacy. By addressing these challenges, stakeholders—such as parents, teachers, and non-governmental organisations—can help create an enabling environment conducive to CSE in junior grades, thereby empowering learners and promoting their overall well-being.