A budding entrepreneur who boasts that he rubs shoulders with famous billionaires demanded that an ex-girlfriend pay him $1,250 or he would leak a sex tape of them together to his own parents.

Martin Dai Nguyen, 30, a self-proclaimed wealth coach and recruitment consultant, had presented himself as a trustworthy entrepreneur when he grossly breached his ex-partner’s trust.

The social media hero, who also bills himself as a dancer, firefighter and natural therapist, is known for posting images of himself alongside billionaire Sir Richard Branson, bestselling author Dr John F. Demartini, multi-millionaire. Mark Bouris and “The 9.4 Billion Dollar Man” Jay Abraham.

Martin Dai Nguyen in another self-promotional photo on social media with multi-millionaire Mark Bouris

Dog act: Martin Dai Nguyen’s website is littered with photos of people and animals, expressing their love for him

Nguyen was on his own with his shame on Wednesday when Victoria County Court heard of his disgraceful efforts to blackmail his former lover.

The couple had logged onto Facebook in October 2020 and she moved into their downtown Melbourne apartment a month later.

But things quickly went downhill when the controlling Nguyen banned the woman from catching up with her Vietnamese friends.

In April last year, the relationship was over and Nguyen demanded that she return a camera box, keys to her apartment, earrings and a Louis Vuitton handbag he had given her. Free.

He also demanded that she pay him the $1,250 in a text message that ended with an ominous threat.

“(Let me know) how long you can organize this before I ruin your career here in Oz with some pretty videos,” he wrote.

The couple had previously made sex tapes, which Nguyen assured him had been deleted.

Martin Dai Nguyen made dirty sex videos with an ex-partner, which he then used to blackmail her with just over a thousand dollars and a purse

Martin Dai Nguyen likes to portray an image of himself as mingling with the rich and famous. Here he is pictured with Australian singer Shannon Noll

Martin Dai Nguyen with three-time former kickboxing world champion Ian “Powerhouse” Jacobs and three-time former UFC welterweight champion Georges St-Pierre

Nguyen gave the woman until midnight to comply or he would post them on the internet.

“If I don’t get my money back I will ruin your life forever,” he wrote.

“I want it in cash, the $1,250 and the rest, or I’ll run away and ruin you. Now let me show you what you used to take for granted. I’ll show you what it’s like when I don’t fucking love you. I want my things back tonight or I’m going to flee.

The court heard the social media bully continue his tirade through various forms of messaging services.

“Once the videos are leaked, it will be more difficult for you to climb properly in the world of finance. It will forever be on the internet and I will make sure SCOs are done in a way (so) when people search for relevance to you, they will find it. That, I promise you.

To show he was serious, Nguyen sent him a copy of one of the supposedly deleted videos in a fake Facebook post he threatened to send to his mother.

He also threatened to send the tapes to his father.

Terrified, the woman surrendered to the police, who quickly arrested the bully.

Court heard Martin Dai Nguyen actually had self-esteem issues and didn’t like to be left alone

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Martin Dai Nguyen poses in another chic location. He was found guilty of a blackmail attempt which included a sex tape and a purse

Another photo from Martin Dai Nguyen’s website. He’s now a convicted blackmailer who threatened to send a sex tape to his ex-girlfriend’s own parents

Nguyen blamed excessive cocaine use for his behavior and said he had no real intention of following through with his vile threats.

He pleaded guilty to a charge of blackmail in July, which carried a maximum sentence of 15 years in Victoria.

On Wednesday, the court heard that Nguyen had previous run-ins with the law and had previously pleaded guilty to recklessly causing injury.

Nguyen had come to Australia as a toddler from Vietnam.

Her parents had worked hard as seamstresses to support her and her siblings.

At sentencing, Judge Angela Ellis condemned Nguyen for his disgraceful behavior.

“I am of the view that the offense is particularly serious as it involved a flagrant breach of trust,” she said.

“Having a partner who she had very recently ended a relationship threatening to publicly expose video material of you two engaging in sexual activity, especially to her parents, must have been incredibly frightening and upsetting for (her).”

Nguyen was convicted and sentenced to an 18-month community correction order and must complete 200 hours of community service.