A 35-year-old woman who shamelessly breached her Asbo by offering a teenage boy sex before robbing and assaulting him has been jailed for nearly two years.

Kelly Ann Vigors made the raunchy proposal with a boy nearly half her age as he withdrew money from a cash machine – robbing him as he was taken aback in disgust.

She then snatched £40 in notes and punched Lance Hayes, 19, in the face after he began chasing her in an attempt to get his money back.

But he was also attacked by Vigors’ waiting accomplice in Argyle Street, King’s Cross, during the callous mugging in November.

Serial robber Vigors, of Birkenhead Street, King’s Cross, was jailed for 21 months at Blackfriars Crown Court last Thursday after pleading guilty to robbery, theft and assault by beating.

She is already banned from all major London train stations for persistent thieving after being slapped with a three-year Asbo.

The career criminal was previously jailed for 18 months in October 2010 after admitting stealing £1,500 from rail passengers.

At Euston and St Pancras stations, she stole four handbags from commuters, also admitting a fifth offence of shoplifting in Camden.

But she was tracked down by police from her distinctive tattoos after detailed witness statements.

On release from prison, she was slapped with the three-year Asbo banning her from loitering in any of the capital’s major rail stations due to her persistent thieving.

The order covered Paddington, Marylebone, Euston, St Pancras International, King’s Cross, Liverpool Street, Waterloo, London Bridge and Victoria.

She was also prohibited from entering any shop within the stations unless visiting a ticket office. But the court heard that she had been in breach of the Asbo while robbing Mr Hayes.

She was arrested for the theft after robbing Jeremy Cox, 29, in a separate offence in King’s Cross Road on December 12.