A schoolboy sent a naked picture of a married teacher to friends for 'a bit of a laugh', fuelling rumours that she was having sex with a 15-year-old pupil, a court heard.
Kandice Barber, 35, is accused of meeting up for sex with a boy, who was 15 at the time and cannot be named, on three occasions in late 2018 in a field, in woods and in her four-by-four, as well as sending topless pictures of herself to him on Snapchat.
Aylesbury Crown Court heard that Barber was a cover supervisor at the school and was bound by the same rules as teaching staff to not contact students outside school without the head's permission.
On day four of Barber's trial today, Aylesbury Crown Court heard how a friend of the boy had shared a naked photograph of Barber with his older brother and other pals 'for a laugh'. It was later shared with a friend working at the school who reported it, sparking an investigation.
The court also heard testimony from the school's headmaster - who said the boy was 'visibly upset and shaking' when he revealed details of the alleged affair.
Kandice Barber, right, arrives at Aylesbury Crown Court, Buckinghamshire, left, where she is appearing accused of engaging in illegal sexual activity with a 15-year-old boy
Entering the witness box in court, Nicholas Simms, who was head teacher at the Princes Risborough secondary school in Buckingham, said the complainant had come to his office on March 11 for the second time.
The first had been on January 24 after Mr Simms heard from a teacher who had overheard a student speak of the rumours, though the court heard how the boy had denied the gossip at the time.
Mr Simms, who was sharply dressed, went on to read a letter he had received from Barber after the initial meeting, which read: 'Dear Mr Simms, I am writing to confirm that the rumours are completely not true.
'Being both married and having children in the school, this has been sickening and upsetting. The school means so much to me.'
The teen was then asked back to the office in March to write a statement denying the rumours, and spent two to four minutes on it before coming back to Mr Simms. 'My friends told me to tell you the truth,' he said upon his return.
A jury heard how the boy then alleged having sexual activity with Barber.
'He was visibly upset, his hands were shaking and it took him a long time to explain himself,' Mr Simms told the jury.
The headmaster said he took advice from the local area designated officer for safeguarding (LADO) to call the police, who arrested the defendant the following morning at the school on March 12.
Defence lawyer Nadia Chbat, cross-examining Mr Simms, said 'You didn't have any conversation with Miss Barber at all about the topic. The only conversation you had with her about this was on January 24.'
Prosecutors told a jury how Barber (above) suggested she might be pregnant with the boy's child, which kept him quiet about the affair as he did not want his child to be born in prison
The jury heard excerpts from the school's official guidelines for staff behaviour with students. It expressly said: 'Staff should never seek to make contact with a student outside of school.'
A police interview of a close friend of the complainant was shown to the jury earlier this morning in which the boy said: 'I am 100 per cent sure of one time it happened. They met up after but I'm not sure if they did it again after that,' he said. He said it never happened at either of the alleged lovers' houses.
'He talked about her partly like she was a normal girl. Another part was it was kind of unusual because she was actually a teacher.
'He felt a bit guilty because obviously she was married. She told him she thought she was pregnant. I'd say he felt a bit bad from the way he was talking about it.'