A former porn star appeared to have undergone a dramatic transformation when she testified against her ex boyfriend, MMA fighter War Machine.

Christy Mack, who has previously flaunted her arm, neck and face tattoos, along with her colorful hair, went for a more conservative look when she appeared at the Regional Justice Center, Wednesday, in Las Vegas.

The 25-year-old wore a high-necked Victorian-style blouse with a blazer, and was sporting a blonde bob and heavy yet subdued makeup which covered up her ink. 

She was in court to testify against War Machine, whose birth name is Jonathan Paul Koppenhaver, who is accused of raping and beating her in 2014.

Christy Mack, who has previously flaunted her arm, neck and face tattoos, and colorful hair (left in court in 2014) went for a more conservative look on Wednesday

The 25-year-old wore a high-necked Victorian-style blouse with a blazer, and was sporting a blonde bob and heavy yet subdued makeup which covered up her ink

A dramatic transformation: Christy Mack, who previously flaunted her arm, neck and face tattoos (left in court in 2014) went for a more conservative look when she appeared in court Wednesday in a blouse and blazer, and a blonde bob (right on Wednesday)

Former mixed martial arts fighter War Machine, also known as Jonathan Koppenhaver, listens to the testimony from  Mack during his trial Wednesday, March 8

Former mixed martial arts fighter War Machine, also known as Jonathan Koppenhaver, listens to the testimony from  Mack during his trial Wednesday, March 8

The Las Vegas trial has previously heard that War Machine told his porn star ex-girlfriend he would have to kill her as he stood over her helpless body and beat her for two hours.

Mack, whose real name is Christine Mackinday, described to the courts how the violence in their relationship had escalated and sometimes ended in her being choked into unconsciousness.

‘At first they weren’t that frequent — maybe once a month — but as our relationship progressed, the violence progressed,’ she said at the Las Vegas trial, according to the New York Post.

She said she became too scared to report the abuse because her ex threatened to get his former Hells Angels friends to hurt her and her family. 

‘He said he would send his Navy SEAL friends or Hells Angel’s after me or my family,’ Mackinday said, adding that she heard him on the phone giving them her and her mom’s addresses.

In Monday’s opening statements, the court heard how the fighter threatened to murder his former flame Christy Mack, as he mercilessly attacked the adult actress.

The brutal assault began when he burst into a bedroom and found Mack in bed with another man in August 2014.

After allegedly pummeling her new lover, War Machine turned his anger on Mack, leaving her with a broken nose, missing teeth, fractured eye socket, leg injuries and a lacerated liver.

Christy Mack, who has previously flaunted her arm, neck and face tattoos, along with her shaven hair (pictured in 2014) went for a more conservative look when she appeared at the Regional Justice Center, Wednesday, in Las Vegas

Mack (left and right in 2014) met War Machine while they were performers on an adult film shoot

Mack (left and right in 2014) met War Machine while they were performers on an adult film shoot

She was in court to testify against War Machine, whose birth name is Jonathan Paul Koppenhaver, who is accused of raping and beating her in 2014

She was in court to testify against War Machine, whose birth name is Jonathan Paul Koppenhaver, who is accused of raping and beating her in 2014

In a rage, he had stood over Mack during the beating and told her ‘This is it. I’ve got to kill you now’, reported the Las Vegas Review Journal. 

The 35-year-old is on trial for 34 felony charges against him, including kidnapping, attempted murder and multiple counts of sexual assault, all of which he pleaded not guilty.

On Wednesday, Mack claimed that she had witnessed War Machine, who appeared quite emotional during her testimony, inject himself with steroids and take pills during their relationship. 

On Tuesday, the second day of War Machine’s rape trial, a prospective juror who was rejected from hearing the trial, appeared in court to present him with a gift. 

The woman, who was turned down from sitting in the jury, handed over an envelope containing a letter and what looked like a bracelet, Las Vegas Review-Journal reports.

She is understood to have written that she was praying for the fighter, who had his name changed from Jonathan Koppenhaver.

District Judge Elissa Cadish ruled that as the rejected juror is a private citizen, the gift should be delivered through the Clark County Detention Center, where he is being held without bail.

Defense attorney Jay Leiderman described the gesture as ‘very sweet’, but prosecutor Jacqueline Bluth described the move as ‘absolutely inappropriate’.

The attack occurred in August of 2014 after War Machine burst through Mack's bedroom door and found her in bed with another man. He said to her: 'This is it. I’ve got to kill you now'. She suffered a broken nose, missing teeth, fractured eye socket, leg injuries and a lacerated liver

The attack occurred in August of 2014 after War Machine burst through Mack’s bedroom door and found her in bed with another man. He said to her: ‘This is it. I’ve got to kill you now’. She suffered a broken nose, missing teeth, fractured eye socket, leg injuries and a lacerated liver

Mack was in bed with Corey Thomas when War Machine burst into the room. Thomas told the court the fighter had bitten him and put him in a choke hold. He said he thought he was going to die in the 12 minute battle. Pictured: Thomas' injuries 

Mack was in bed with Corey Thomas when War Machine burst into the room. Thomas told the court the fighter had bitten him and put him in a choke hold. He said he thought he was going to die in the 12 minute battle. Pictured: Thomas’ injuries 

Mack's lawyers argued this was not the first time War Machine was violent with her.

His lawyers said the two were in an explosive relationship that revolved around sex, constant attention and internet personas

Mack’s lawyers argued this was not the first time War Machine was violent with her. His lawyers said the two were in an explosive relationship that revolved around sex, constant attention and internet personas

Prosecutors began casting the former mixed martial arts fighter as violent in his relationship with the porn star and murderous when he found her asleep with another man in her bedroom. 

The day’s main testimony was from Corey Thomas, the man who was in bed with Mack when the alleged assault took place. 

He told the court he thought he was going to die in the 12 minute battle with War Machine, where he was bitten and put in a choke hold by the expert fighter.

According to NEWS3LV, Thomas said: ‘He bit me there on the cheek and I could feel the bite.

‘And once it registered I was getting bitten, then I put my hands back up to try to break him off my face and then he hit me on the arm. 

‘I’m looking up at the ceiling thinking to myself ‘I’m going to die in Christy’s bathroom. That’s not how I’m going out.” 

Thomas said Mack’s horrific injuries were the ‘the saddest [he] ever saw, reported Adam Herbets for Fox 5 Vegas. 

Thomas added: ‘When I was in hospital, Christy was in the room right next to me. Her eyes looked like they were peppered shut. Teeth gone.’

War Machine, who said he would go by Koppenhaver in court, had a quiet defense attorney in Jay Leiderman.

Thomas said he ended up with a broken nose, dislocated shoulder, scrapes and bruises, and bite marks on his face and arm

Thomas said he ended up with a broken nose, dislocated shoulder, scrapes and bruises, and bite marks on his face and arm

Leiderman didn’t deny during opening statements that a fight took place on that early August morning.

But he characterized Mack and Koppenhaver as ‘two damaged people’ – each with an adopted public name, deep image insecurities and a co-dependent relationship that revolved around sex, constant attention and internet personas that exploded into violence.

‘It was a co-dependency that was bound to erupt at some time,’ Leiderman told the state court jury during opening statements in a trial expected to last a couple of weeks.

If found guilty, Koppenhaver could get life in prison without parole. 

‘The two of them were swallowed up by the personas they had created for themselves,’ Leiderman said.

They met as performers on an adult film shoot. Koppenhaver legally changed his name to War Machine during his 19-fight MMA career, and he started a clothing line he called Alpha Male. 

She had shortened her given name, Christine Mackinday, for her adult film career. She cheered ringside at his martial arts bouts. He became jealous of her professional sexual encounters.

The Associated Press usually doesn’t identify alleged victims of sexual assault, but Mack gave the AP permission to use her name. She is expected to testify during the trial.

War Machine had 'Mack' tattooed in large letters across his throat. Lawyers said Mack liked to be choked during sex, sometimes to unconsciousness.  They added that Mack had rape fantasies, and invited him to surprise her

War Machine had ‘Mack’ tattooed in large letters across his throat. Lawyers said Mack liked to be choked during sex, sometimes to unconsciousness.  They added that Mack had rape fantasies, and invited him to surprise her

Mack said she drifted in and out of consciousness as she was beaten, kicked and groped sexually. She said she escaped and ran naked and bleeding to neighbors’ homes 

His lawyers said: 'The two of them were swallowed up by the personas they had created for themselves' 

His lawyers said: ‘The two of them were swallowed up by the personas they had created for themselves’ 

Among their many tattoos, he has her name, ‘Mack,’ tattooed in large letters across his throat. She had ‘Property of War Machine’ inked in red on the back of her right shoulder.

Prosecutor Jacqueline Bluth told jurors that Mack liked to be choked during sex, sometimes to unconsciousness. Leiderman said Mack had rape fantasies, and invited Koppenhaver to surprise her.

Thomas, a digital media company owner who is both taller and heavier than Koppenhaver, testified Monday that he dated Mack for two months before Koppenhaver arrived unexpectedly, flipped on the bedroom lights and set upon him on the bed with rapid-fire punches and chokes that nearly left Thomas unconscious.

If found guilty, Koppenhaver could get life in prison without parole

If found guilty, Koppenhaver could get life in prison without parole

High school wrestling experience and a couple of years of unarmed defense training helped Thomas escape, he said, along with the presence of mind to ask Koppenhaver whether he was going to kill him or let him leave.

Thomas testified that he ended up with a broken nose, dislocated shoulder, scrapes and bruises, and bite marks on his face and arm. Koppenhaver let him go with a warning that if he went to the police, Koppenhaver would enlist friends who are Navy SEALs and Hells Angels bikers to hurt him, Thomas said.

Mack testified in 2014 that after Thomas left, Koppenhaver attacked her – leaving her with a broken nose, missing teeth, fractured eye socket, leg injuries and a lacerated liver.

She has said she drifted in and out of consciousness as she was beaten, kicked and groped sexually. She said she escaped when she thought Koppenhaver was in the kitchen fetching a knife to finish her off. She ran naked and bleeding to neighbors’ homes.

Koppenhaver, now 35, was arrested in the Los Angeles suburb of Simi Valley a week after the alleged attack in Las Vegas.

He has been in Nevada state custody since that time, serving 1½ to four years in prison after his probation was revoked for a prior conviction in a 2009 attempted battery causing substantial bodily harm case involving a 21-year-old woman.

Koppenhaver made his Ultimate Fighting Championship debut in 2007, and he had a 14-5 record as a welterweight. His final fight was in 2013.

He was dropped by his fight promoter and his clothing line after Mack’s accusations became public.

He told a judge in 2014 that he would use the name Koppenhaver in court. 

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