A man left his cousin’s boyfriend needing surgery to his face after the victim caught him in a young relative’s bedroom at a party.
Preston Crown Court heard Paul Eastham was attacked at his girlfriends home after confronting defendant Kerry Peacock when he was caught in his younger cousin’s bedroom with a girl he brought to a family party.
Peacock, 21, of Whernside Crescent, Ribbleton, Preston, denies grievous bodily harm.
Prosecuting, Jane Dagnall told the jury of seven men and four women Mr Eastham suffered a fractured eye socket and cheekbone.
Both had been at a 40th birthday party for Mr Eastham’s girlfriend’s mum in Ambleside, Brookfield, Preston, on October 28, 2012.
She said: “At about 12.30am, Paul Eastham found Kerry Peacock in his girlfriend’s 14-year-old brother’s bedroom having sex with a girl he had brought to the party.
“He was upset and didn’t think it was right to do this. He told him off and shouted for other family members who soon joined him upstairs.
“Kerry Peacock squared up to Paul Eastham, others intervened and he apologised.
“Later Paul Eastham was in the living room when Peacock approached and apologised.
“Later still, Kerry Peacock was in the kitchen. Mr Eastham went in to make a drink, when suddenly Kerry Peacock hit him, sending him to the floor with blood coming out of his noise.
“The defendant ran off.”
Defending, Jon Close, told the court Peacock, who suffers from Asperger’s syndrome, had hit him in “self defence” because he believed Mr Eastham was going to hit him.
The defendant had said he was clothed and was not having sex.