A woman who cut off a man's penis after luring him to her home where he was drugged and beaten to death has lost an appeal against her sentence.
Dianna Gay Wright was jailed for nine years last September for her role in the fatal attack on Noel Clark.
She had pleaded guilty in the Supreme Court in Brisbane to manslaughter and interfering with a corpse.
During the hearing the court heard Wright lured Clark to her Maryborough house at the request of another man, who believed the intended victim had ''stolen his woman''.
Once at the house the jilted lover and a friend sprayed Clark's face with ether and beat him to death with a baseball bat.
One of the men then ordered Wright, who was high on morphine, to cut off Clark's penis because he was, according to them, a rapist or a pedophile.
They then disposed of Clark's body, which has never been found.
Wright took her case to the Court of Appeal in Brisbane, where her lawyer argued the sentence was excessive and failed to take into account her guilty plea and her co-operation with authorities.
In a written judgment published on Wednesday, the Court of Appeal dismissed the application, ruling the sentence was in line with Wright's "high order" of criminality.