A teacher from Yau Ma Tei Catholic Primary School allegedly had sex with a student at least 280 times in three years, starting from when she was12, a court heard yesterday. Chu Chi-wah, 38, is charged with 12 counts of having sex with a child and one of intending to induce her to have an abortion. He has pleaded not guilty to all the charges. Chu is accused of having sex with the girl, whom he tutored at his flat, 12 times from January 2004 to June 2006 and taking her to a gynaecologist in July and August 2004 for an abortion. Chu taught mathematics and physical education to the girl's class from Primary Three to Primary Six at the school. When she moved on to secondary school, she joined daily tutorials at his home where other students were present, counsel for the prosecution Selwyn K.M. So told the High Court before Madam Justice Maggie Poon Man-kay. The sexual relationship started when, one day at the start of 2004, the girl went to Chu's home for a tutorial and found herself alone with Chu, Mr So said. Later on, the two would have sex regularly, several times per week, she said. In the summer of 2004, she would go jogging with Chu and others, and after returning to his flat would spend the night there so that her mother would not have to fetch her, the girl said. Almost every time she stayed over, the two had sex. During the 28 months from the summer of 2004 until the girl left Chu in December 2006, the two had sex on average 10 times per month, for a total 280 times, she told police in November. It was unclear how often they had sex from January 2004 until the summer of 2004. The girl realised in August 2004 that she had not had her period since June. She and Chu bought three pregnancy test kits and discovered she was pregnant. He took her twice to a gynaecologist in the building where he lived, both times leaving her to go in by herself. The first time, she ascertained she was pregnant and might be in her second or third month, and found out that an abortion cost HK$3,000. Chu suggested she bargain the price to HK$2,800. The second time, she underwent the half-hour procedure, she said. Chu called the girl's mother in mid-2005, crying and saying he had fallen in love with her daughter and that something had happened, without specifying what, Mr So said. After that, the girl stopped attending Chu's tutorials. She made a police report in August last year after she told her boyfriend. She would decline each time Chu initiated sex, but would agree eventually out of fear of making him angry, said the girl, now 17. Chu never wore a condom, she said. Asked how she felt when having sex with Chu, she said: 'Very tragic, having sex with someone I did not like.' She said she respected Chu as a good teacher, but did not have feelings for him.