Emma Webb texted students to get them out of lessons and meet her in a maths rooms where she would pull down their trousers. On other occasions she would pick up the boys outside school before driving them to secluded areas where she would have sex with them on the back seat.

The mother-of-two would contact the two boys, when they were between the ages of 14 and 15, through Facebook and text messages. She would send pictures of herself dressed only in underwear.

The 44-year-old was jailed for 34 months in 2012 after admitting 30 counts of having sexual activity or inciting sexual activity with a child whilst in a position of trust with five teenagers at the same Wokingham Borough school, which cannot be named for legal reasons, between September 2009 and May 2012.

Two more boys, who cannot be named, came forward in February this year prompting a second police investigation.

Michael Roques, prosecuting, said one boy was afraid of Webb’s husband who she had claimed was a black belt in martial arts.

He said: “He dropped down grades at school and when it came top the possibility of a protracted legal case he feared they would drop further.

"He considered her husband a fighting master and was scared about speaking out."

Mr Roques told Reading Crown Court on Friday that one boy had been comforted by Webb after a family bereavement.

He said: “She gained his trust while comforting him about the death in the family.

“She began contacting him through Facebook and ‘coming on to him’.”

He met her at her former marital home in Woodley, where they had sex on the stairs.

Mr Roques said: “Her husband was at work and she told him that her husband was a black belt in martial arts,

“This was the reason he was not willing to make disclosures at the time of the previous investigation.”

She was the second pupil’s mentor at school and took his phone number to make sure he got to school on time when he was aged 13.

Mr Roques added: “There was no real contact until he reached year 11 when she texted him out of the blue.

“There was general chat and then the defendant said ‘If I was younger I’d be the girl for you’.

“He then says the atmosphere in school was different between the two and she was more flirty.”

Lucy Tapper, defending, said Webb was in the process of rebuilding her relationships with her children, had found a job and was embarking on a new relationship.

She said: “She is anxious to put this behind her.”

Recorder John Gallagher told a sobbing Webb: “There is no doubt about it you abused your position of trust, and abused your position in a serious way over a prolonged period of time on these two boys and it involved a degree of planning on your part.

“You had your problems but this was for your own gratification and you ignored the needs of these two boys.”

He jailed her for a total of 15 months that was suspended for two years.

Webb, of Wayland Close, Bracknell, admitted five counts of inciting a child to engage in sexual activity, six counts of sexual activity with a child, a charge of sexual activity in presence of a child and causing a child to engage in sexual activity while in a position of trust between June 2010 and June 2012.

Three counts of engaging in sexual activity with a child and another of sexual activity with a child were denied and were laid on file.