TWO teenage girls plotted to bash and rob another girl at Wurtulla in a revenge attack over a boy.
The young women later laughed about the offence and suggested they should have stolen even more from their victim.
But what counsel for one of the young women likened to a "schoolyard fight" landed them before the Maroochydore District Court yesterday on serious criminal charges.
Amy Leigh Spink, 19, pleaded guilty to assault occasioning bodily harm while armed.
A juvenile, who cannot be named, pleaded guilty to robbery, assault occasioning bodily harm while in company, and stealing.
The court was told that both Spink and the victim had been in a relationship at times with a boy.
According to a statement of facts tendered to the court, the relationship between the victim and the boy appeared to be the motivation for the attack by Spink and her friend.
The statement said text messages between Spink and her friend indicated the two planned the attack on the girl.
The juvenile and friends picked up the girl from Sunshine Plaza on March 24, offering to drive her to Caloundra.
On the way, they stopped at a park where the victim was approached by an "angry" Spink, who began talking to her.
The statement said the juvenile hit the victim in the eye, causing her to fall to the ground, and then stole a necklace from around her neck.
When the girl tried to get away, Spink and the juvenile chased her. Spink punched her while the juvenile took her phone. Judge John Robertson described the attack as a "nasty incident".
He reiterated the "one punch can kill" message and said the consequences for the victim of such an assault could be permanent brain damage or death.
"That's why the law regards this sort of conduct as pretty serious," he said.
"It's fortunate for her and it's fortunate for you that her injuries were not more serious."
Spink, now 31 weeks pregnant, was sentenced to six months' jail but released on immediate parole.
The juvenile was placed on 15 months' probation and ordered to perform 100 hours community service.