A man was threatened with a meat cleaver as he had sex with woman after being lured to a house in a honey trap plot.

Dean Allen, 32, who has been jailed for two years, burst into the living room of the property in Alloa, Clackmannanshire, and assaulted Mark Aimer.

The High Court in Edinburgh heard Mr Aimer had been "enticed" to the property after exchanging explicit Facebook messages with the woman, who cannot be named for legal reasons.

The victim did not realise Allen and the women had hatched a plan against him.

The pair thought their victim, of Alloa, would be carrying cannabis and the ruse would be a good way to get their hands on the drug.

The plan culminated with Allen interrupting the couple as they had sex on a sofa and launching a vicious assault on Mr Aimer.

Allen, a prisoner at HMP Barlinnie, repeatedly bit and butted his victim on the head before seizing him by the neck.

He then repeatedly butted Mr Aimer on the head before attempting to rob his victim of his possessions.

Mr Aimer, who did not have any cannabis on him, fought back and escaped.

Allen, who has numerous previous convictions, was later arrested.

He pleaded guilty on Friday to assaulting Mr Aimer to his injury on March 3, 2017.

Allen was originally charged with attempted murder but prosecutors dropped the allegation after Allen pleaded guilty to the lesser charge.

Passing sentence, Lord Armstrong told Allen that if he had not pleaded guilty to the assault, he would have been sentenced to two and a half years in prison.