Could not subscribe, try again laterInvalid Email A boy who claims he had sex with his school teacher when he was just 15 told his mum an "older lady" asked him to go to Thailand with her, a court heard. He suggested he made the claims about having sex with Lowe while still at school because he was an "attention-seeking fantasist" who liked telling "tall stories" about his sexual encounters. During her time at Amberdale she had taken the boy to the gym for a workout and to play badminton, said Mrs Herbert. Deborah Lowe is charged with sexual activity with a boy under the age of 16 and abuse of a position of trust Image: It was at this point the mother found out the woman was Deborah Lowe after she showed the tattooist Lowe's Facebook photo, the court heard. Neil Usher, defending Lowe, questioned why he had contacted The Sun newspaper to sell his story. PA Archive The exact time the relationship began is the central issue in the trial that the jury must decide, the court heard. The jury heard how the pair enjoyed secret liaisons at Lowe's flat, her caravan and in her car, and Lowe, a school head of pastoral care, liked to be called a "slut" during rough sex, where he pulled her hair and she bit and scratched his back until it bled. Sentencing her, the judge said she would now sign the sex offenders' register indefinitely and would be barred from working with children. But while the year-old admits to having sex with the boy, she says she did so when he was 17 and had left school and denies the charge. And he suggested that the boy had changed his story, claiming the affair started when he was 15 and still a schoolboy, instead 17 when he had left school. I said 'well she's aging quite fast'. She gave no comment to police. The witness told the court: Getty Images Europe His mother said she "constantly delved" to try and find out information about the "older lady" her son had mentioned. But he initially told officers who came to investigate that the relationship started after he had left school, Mr Usher said. The case was initially set to be a trial, because she did not accept any sexual activity before the trip.