A MOTHER who was spared jail for having sex with a schoolboy has now been locked up by top judges - who ruled her original sentence was too soft.

Terri Spragg had sex with the 14-year-old on the floor of her kitchen after drinking alcohol and warned him not to tell anyone as she would go to prison.

3 Terri Spragg has now been sentenced to time behind bars after originally having a suspended sentence

The 35-year-old former dinner lady, of Bettesworth Road, Ryde, Isle of Wight, was found guilty of seven counts of sexual activity with a child and handed a 15-month suspended sentence at Newport Crown Court in January.

But Spragg will today begin a three-year jail term, after judges sitting at the Court of Appeal, in London, ruled her original punishment was "unduly lenient".

The court heard she continued to message the youngster after they had sex - becoming jealous when he got a girlfriend of his own age.

3 The dinner lady tried to text the teen after he got a girlfriend his own age

She also tried to cover her tracks by deleting social media traffic between her and the victim.

Her crimes were discovered after a relative of the victim became concerned about his behaviour and found text messages from Spragg on his mobile phone.

Spragg's case was referred to the Appeal Court by the Attorney General, Jeremy Wright QC, who asked three senior judges to review her sentence.

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Lawyers argued the Crown Court judge didn't take enough account of the serious nature of the offences, or the large age gap between Spragg and her victim.

Jailing her for three years, Lord Justice Treacy said her original sentence was "unduly lenient".

Sitting with Mr Justice Gilbart and Sir John Griffth Williams, he said that, while she experienced problems in her life which may have "clouded her judgment" at the time, she knew exactly what she was doing.

3 The sentence against the woman was found to be unduly lenient

He added: "This 14-year-old was less than half the offender's age and he had no previous sexual experience.

"That there may have been a sexual attraction between them is nothing to the point - this legislation is designed to protect young people from their urges and from those who should know better than to take advantage of the situation.

"It is perfectly clear that she fully appreciated the wrong she was doing, as her comments at the time and her attempts to cover up her social media trail demonstrate.

"She went into this series of offences with her eyes wide open and she was fully aware of the consequences for her if she were to have been found out."

Spragg was ordered to hand herself in at Newport police station by 5pm on Thursday.

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