jose carlos cerdeno martinez/Getty ImagesRecent media reports of alleged sexual assaults by teenage boys draws attention to an uncomfortable truth: that young people sometimes perpetrate harmful sexual behaviour against their peers. These reports are only the tip of the iceberg. The Australian Child Maltreatment Study surveyed more than 8,500 Australians aged 16 and over, and found that nearly three in ten (28.5%) had experienced child sexual ab…