UK- A FORMER porn star who knifed her boyfriend in a drug row had her jail sentence doubled this week.

Melissa Walker, 26, who had a £1,000-a-week drug habit, attacked Matthew Quant, 22, after a cocaine binge in Hove, East Sussex. He nearly died and she was jailed for two-and-a-half years in June for wounding with intent.

Friday she wept as Appeal Court judges in London ruled the sentence “unduly lenient” and increased it to four years and nine months.