Educational interventions on youth sexting often focus on individual sexters or would-be sexters, and are driven by the aim of encouraging young people to abstain from producing and sharing personal sexual images. This approach has been criticised for failing to engage with the complex sociocultural context to youth sexting. Drawing upon qualitative group and one-to-one interviews with 41 young people aged 14 to 18 living in a county in south-east England, I explore young people's perceptions and practices surrounding sexting. By taking a grounded theory approach to the research, I reveal how young people's shaming of digitally mediated sexual self-expression shaped and was shaped by a denial of rights to bodily and sexual autonomy and integrity. This denial of rights underpinned harmful sexting practices, including violations of privacy and consent, victim blaming, and bullying. I conclude that responses to youth sexting should attend to this broader youth cultural context, emphasise the roles and responsibilities of bystanders, and encourage a collectivist digital sexual ethics based upon rights to one's body and freedom from harm (Albury, "New Media and Society" 19(5):713-725, 2017; Dobson and Ringrose, "Sex Education" 16(1):8-21, 2015).