Home News US Home Sport UK Showbiz US Showbiz Australia Home Femail Health Sci & Tech Video Money Travel Login | Join now Desktop site News Female teacher, 27, who had sex with a 16-year-old boy faces jail after admitting being in a 'six-month relationship' with the child By Lucy Crossley for MailOnline14:59 20 Apr 2016, updated 21:10 20 Apr 2016 +4 Facebook Twitter e-mail 348comments Lauren Cox, 27, was teaching in London when she started the relationship She today admitted five charges of sexual activity with a boy aged between 13 and 17 while in a position of trust Court told there was a 'build up' to relationship before his 16th birthday Cox arrested after boy told his parents, and they told school headmaster +4 Lauren Cox, 27, (pictured) is facing jail after she embarked on a six-month relationship with a teenage schoolboy A female teacher who had sex with a 16-year-old schoolboy was warned today that she faces jail after a court heard she had been in a six-month relationship with the teenager. Lauren Cox, 27, was teaching at a school in south London, when she embarked on the relationship with the boy, who cannot be named for legal reasons. She appeared at Croydon Crown Court today, where she admitted five charges of sexual activity with a boy aged between 13 and 17 while in a position of trust. These included sexual touching on March 9th and March 16th last year as well as sexual intercourse between April and September 2015 when she was 26 and the boy was just 16. Cox was arrested on September 16, 2015 after the pupil told his parents about what had been going on between the pair. They then contacted the head teacher of the school, who in turn alerted social services. Cox had first met the child when he was 13, and the victim said they formed a close relationship. According to police, she begin a sexual relationship with the boy in January 2015. Brian Reece, prosecuting, told the court: 'The age gap is just 10 years so this is a school teacher-pupil relationship. 'It is the Crown's case there was a build up to this relationship ahead of the victim's 16th birthday in February last year.' Cox and the boy would meet after school and during school holidays. She would also send explicit pictures and videos of herself to the boy. MORE... 'Grotesque' fraudster, 36, forced a disabled pensioner, 84, to have sex with her before robbing and humiliating him while posing as his carer Homeowner chased burglar out of his house and all the way to his local Wetherspoons… where he bought the intruder a pint But he ended the relationship in August 2015 after his parents suspected about what was going and confronted their son who then admitted the relationship with Cox. However, Cox continued to message the boy prompting his parents to raise the alarm. Business studies teacher Cox, who appeared in court wearing black trousers, a jacket, and thick rimmed glasses spoke quietly in the dock as she pleaded guilty to all five charges put to her. +4 Cox is pictured leaving Croydon Crown Court today, where she admitted five charges sexual activity with a boy aged between 13 and 17 while in a position of trust She previously appeared at Bromley Magistrates' Court in south east London on March 23rd after being arrested last September by officers from Scotland Yard's Sexual Offences, Exploitation and Child Abuse Command (SOECA). Ronnie Manek, mitigating, said Cox was of good character. 'There was no build up to this, there was no grooming charges on the indictment,' he said. 'There is a relationship that went on for about six months or so. +4 Cox was arrested after the pupil told his parents about what had been going on between the pair 'Miss Cox has seen a clinical psychologist. There's a variety of authorities to consult and these sets of facts are unique.' But Judge Nicholas Ainley warned Cox she could go to jail for more than a year. He said: 'Obviously she has to be aware there is a custodial penalty for these offences. 'I'm ordering a pre-sentence report, but that does not mean that because I'm granting that application there will be no custodial penalty. 'A custodial penalty may well be applied; that would be for the sentencing judge.' Mr Manek added: 'She's aware there is a starting point of 12 to 18 months.' Cox, from Oxted in Surrey, was bailed to return to Croydon Crown Court next month to be sentenced. The officer investigating the case, PC Laura Davies of the Sexual Offences, Exploitation and Child Abuse Command (SOECA), said: 'Cox abused her position of trust as a teacher and groomed the boy which went on to sexual abuse. The abuse has had an extremely adverse effect on the boy with his studies suffering as a result. 'Cox never once admitted the offences during police interview. She has now admitted the offences today but only because of the wealth of evidence against her. 'Cox displayed dismissive arrogance to the seriousness of the allegations against her. It's most concerning that she showed no remorse - as professionals, teachers have a specific duty of care to young people and this was abused.' Cox was granted bail on condition she does not contact the victim or go to the school.'