A man has gone on trial accused of raping and molesting the daughter of his live-in lover after the teenager gave birth to a baby that tests proved was his. The 54-year-old pleaded not guilty to two charges of rape and three of indecent assault on the girl since 2002, when she was only 13. Prosecuting barrister Selwyn So Kai-ming said the offences came to light in April after the mother noticed her daughter's body swelling. She took her to a doctor who confirmed the pregnancy. She gave birth in July and a DNA test showed the defendant was the father, Mr So told Deputy High Court Judge Derek Pang Wai-cheong. He said the victim came to Hong Kong in 1995 with her parents and two older sisters. After her father died in 1998, the family moved into a public housing flat in Sau Mau Ping, where the mother met the defendant, who later moved in. Mr So said the man had changed his name to that of the girl's late father and she and her sisters then called him 'father'. The hearing continues today.