Michelle Payne's brother Stevie steps out with his girlfriend at the Melbourne Cup after finding love

Stevie Payne, the brother of former Melbourne Cup winner Michelle Payne, stepped out at Flemington on Tuesday alongside his new girlfriend, Katherine Mansour.

Last month, Payne revealed that he had never been happier after meeting Mansour, describing their connection as ‘life-changing’.

Ten years on from his sister’s historic victory at the Flemington race track, Stevie and Katherine arrived alongside other members of the iconic racing family to celebrate the anniversary and watch as Jamie Melham also made history, becoming only the second female jockey to win this illustrious event.

‘How fab are the Payne family looking today, 10 years on from their iconic Cup win!’ Flemington Racecourse wrote on Instagram posting pictures of the family arriving at the track.

Katherine and Stevie both dazzled, with Katherine wearing a stunning floral dress that featured flowers shaded in purple, orange and pink hues. Stevie donned a navy suit with a light-blue tie. 

The couple smiled as they lapped up the festivities at Flemington, with Stevie also seen posing for snaps with his sister Michelle.

Stevie, who has worked as a strapper for trainer Darren Weir, opened up on his and Katherine’s relationship earlier this year, publishing several pictures of the couple dancing on Instagram.

It is understood that the pair, who both have Down’s syndrome, met on the dance floor at a racing gala.

‘Our favourite thing is dancing together,’ Stevie recently told News Corp.

'We met on the dance floor. She makes me really happy. I love dancing and we love dancing together.'

Stevie played an important role in Michelle’s Melbourne Cup victory, working as Prince Of Penzance’s strapper while also drawing the stall No 1 ahead of the race.

The pair grew up in Ballarat as part of a large family, with horses being a hugely important part of their lives with their father being legendary horse trainer, Paddy Payne.

Michelle and Stevie stopped for photos during Tuesday’s race meet, with the former Aussie jockey donning a red gown with a stunning fascinator.

They embraced with a hug, with Michelle having previously heaping praise on her brother, claiming she could never have won the Melbourne Cup without him.

'To have him on that day with me was unbelievable,' she said.

'I have such huge respect for him. He just seems to take it all in his stride. He's hilarious and smart.

'He's had to navigate through life with his own challenges. He's remarkable, just to see what he does and how he does it is amazing.'

The siblings were also seen sharing a hug during the presentation of the Melbourne Cup on Tuesday. 

Michelle, meanwhile, also sent tongues wagging that she may have found her leading man, as the trailblazing jockey sparked romance rumours stepping out with close friend Gabriel Ribeiro for the big day.

She and Gabriel both stunned as they posed for snaps during Aussie racing’s big day. Gabriel donned a navy blue suit and a red chequered tie and was seen gazing into Michelle’s eyes in one image.

It comes after the pair had recently enjoyed a trip to Bali, with Gabrielle seen planting a kiss on Michelle’s cheek, while the pair lapped up the sun on a boat cruise.

Gabrielle was last month seen helping Payne paint fences at her family’s farm in Ballarat. She captioned a post of the pair: ‘Farm couple in action.’