This paper explores the politics and praxis of ‘youth voice assemblages’ in an exploratory and pARTicipatory research project where 125 young people (aged 11–18) from England, Scotland and Wales shared what and how they are learning about relationships, sex and sexuality. Creative methods enabled us to ‘attune’ to this learning and generate ‘darta’ (arts‐based data). We then ‘animated’ these darta as dartaphacts (creative objects) including films, poetry and education cards. Finally, we ‘amplified’ these dartaphacts in a face‐to‐face launch event. We argue that a creative ontology of ‘youth voice’ is imperative to develop more relevant, responsive and ethical sexuality and relationships education.