She 's no stranger to posing topless on Instagram.

And Married At First Sight's Tamara Joy will host a strip show for charity in Melbourne this week.

The 30-year-old announced the news on Instagram, and said she will host the event with her MAFS co-star Melissa Lucarelli - while teaming up with Magic Men Australia.

'This Saturday I will be hosting a charity night with Magic Men Australia - all tickets proceeds go to Motor Neurone Disease Victoria,' she wrote.

In the promotional post, Tamara displayed her long brunette locks and pearly whites in a strapless white dress.

Behind her are the cast of the Magic Men ensemble who are showing off their chiselled abs in a combination of police and FBI uniforms.

The MAFS bombshell added there would also be $1500 gift vouchers courtesy of Melbourne cosmetic clinic Cosmetic Avenue to be won on the night.

'Can you not think of a better reason to grab a ticket and come hang out with myself, Mel and some good looking fellas,' Tamara added. 

It comes after she raised eyebrows by sitting on her bedroom floor with no clothes on earlier this month.

'When you miss Thursday night tan night... Friday night tan it is,' Tamara jokingly captioned the picture. 

Back in April, Martha was the first Married At First Sight bride to master the carefully positioned pose.  

After posting the bedroom floor selfie, Tamara then shared a topless photo of herself standing in a pool in Bali.

Using just her hands to hide her bare breasts, Tamara insisted she was 'not naked' in the revealing photo. 

Tamara was originally paired with car broker Dan Webb, before he 'cheated' on her with fellow MAFS bride Jessika Power.