In September 2013, the boy became aroused after watching a television show with a bedroom scene.
He eventually felt the urge to simulate what he saw on those websites. Although he was initially disgusted by it, he soon became more interested and began surfing pornographic websites, court documents said. The court heard that the boy was exposed to pornography in 2013. The boy was 12 years old at the time of the crime. The teenager - who cannot be named to protect the identity of the victim - sexually assaulted his sister in 2013, when she was 10. SINGAPORE: A 17-year-old boy who had sex with his younger sister after frequenting pornographic websites was on Wednesday (Aug 8) sentenced to 21 months' probation and 180 hours of community service.