Controversial couple Gabi Grecko, 26, and her much older partner Geoffrey Edelsten, 72, officially tied the knot on Thursday in Melbourne.

The duo who love to do things OTT, went for a surprisingly subdued ceremony in a registry office.

They said 'I do' in front of just two witnesses and a celebrant, Paul Lee, with Gabi getting a little confused as to who the latter was when speaking to Daily Mail Australia: 'The celebrant is the one that marries us, right?' she asked.

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Introducing Mr and Mrs Edelsten! Gabi Grecko, 26, and Geoffrey Edelsten, 72, said 'I do' on Thursday afternoon in a low-key Melbourne service in front of just two witnesses and a celebrant

Wheelie... gorgeous?! The unusual pair posed for Daily Mail Australia beside a bin in an alley following the self-described 'tacky, Vegas-themed wedding'

'It went very well and we are very pleased,' Geoffrey told Daily Mail Australia just after being officially announced as man and wife. 'It was thrilling. I was very excited. This is the real deal.'

The pair went straight home following the wedding as Gabi wasn't feeling up to much celebrations.

'She's not feeling well,' Geoffrey added to DMA, while she could be heard shouting at him in the background.

When asked if they had consummated the marriage yet, he said 'no'.

Trouble in paradise? The pair went straight home following the wedding as Gabi wasn't feeling up to much celebrations.

Instead of dancing the night away, Gabi and Geoffrey were chilling out at home on their wedding night.

'I feel OK. I'm on the couch now watching TV. We were going to go to diner but I don't feel very good,' she added.

During the conversation, she interrupted to shout, 'what are you looking at?' But she explained she was talking to Geoffrey who she said was 'looking' at her.

You may kiss the bride! Gabi certainly caught the eye in a low-cut, thigh-high, full-length Diane von Furstenberg number covered in thousands of white sequins

'It went very well and we are very pleased': Geoffrey told DMA just after being officially announced as man and wife

But unlike the discreet ceremony, the pair kept their trademark extreme ensembles in check with both the 72-year-old groom and his 26-year-old bride competing for the most attention.

Gabi certainly caught the eye in a low-cut, thigh-high, full-length Diane von Furstenberg number covered in thousands of white sequins.

The only thing keeping her warm on the winter's afternoon, was a slinky white fur bolero, while she stood almost a head and shoulders over Geoffrey in a pair of sky-high, pale Christian Louboutin heels.

To complete her bridal look she added a self-described 'tacky' veil that she picked up just before she headed off to get hitched.

'I'm going to the costume shop after I get my hair done - I want to get a veil or a crown – something last minute. Something tacky to wear,' she told Daily Mail Australia earlier in the day.

But first let me take a selfie... Geoffrey held Gabi's hand as the celebrant conducted the ceremony but it seems his much younger bride was only interested in capturing the special moment

The only thing seemingly worrying Gabi was how her breasts would look in the ensemble.

'The dress is low-cut but it doesn't push them up enough,' she fretted.

Her flame haired tresses were chopped into a sleek bob, while she accessorised the look with little balls of pink fur stuck on the ends of her manicured talons.

However, it wasn't all eyes on the sometimes-DJ-other-times-model with Geoffrey almost stealing the show in a white suit with embellished edges - despite it being his third time up the aisle.

Sign here please! To complete her bridal look she added a self-described 'tacky' veil from a costume shop that she picked up just before she headed off to get hitched

Low-key! The duo who love to do things OTT, went for a surprisingly subdued ceremony in a registry office

Looking fresh in the two-piece, Geoff added clashing black shoes to finish off his look.

'He has a suit for every occasion,' she laughed, not elaborating on where he picked up such a number.

Gabi described the wedding as 'more intimate' than any of Geoffrey's others, including his estimated $3 million wedding to Brynne Edelsten in 2009 and his 1980s nuptials to his first wife Leanne Nesbitt.

Nice talons! To match her furry white bolero, Gabi added pink fur to the tips of her pointed, fake nails

'Mrs Gabi Grecko Edelsten!' This isn't the only wedding Gabi and Geoffrey have up their sleeves. They are planning a more lavish occasion for later in the year

But this isn't the only wedding Gabi and Geoffrey have up their sleeves. They are planning a more lavish occasion for later in the year that she is currently designing a dress for.

'We will have another and a reception in a few months when my family can come. We didn't want to wait until then,' she said.

Not even Geoffrey's elderly mother, Esther, was there to watch her son marry the American.

On the DL: Not even Geoffrey's elderly mother, Esther, was there to watch her son marry the American

'Not even his mom is coming,' Gabi said. 'Esther was invited but we felt because my parents couldn't come that it wouldn't be fair if one side was there and not the other.

'We just thought it would be better to come when they are all coming. That's for another time.'

Gabi's parents were unable to fly to Victoria from Florida for their daughter's first vows because her step-father's father has passed away and they needed to stay for the funeral.

'He was old. In his late 70s,' she said. 'It is sad.'

It's believed that Geoffrey's only son, Matthew Beard, wasn't invited to the lunch time service.

Next time? It's believed that Geoffrey's only son, Matthew Beard, wasn't invited to the lunch time service

Easier to get to... In the past, the pair have said they hoped to marry in Paris overlooking the Eiffel Tower but instead opted for the a down-the-road location in their hometown of Melbourne

In the past, the pair have said they hoped to marry in Paris overlooking the Eiffel Tower but instead opted for the down-the-road location in their hometown of Melbourne.

Geoffrey proposed to Miami-born Gabi last November, though the nuptials were delayed for six months while the couple awaited paperwork around the businessman's divorce from second wife Brynne to be completed.

Their divorce was all but finalised in court on April 4, after which Gabi told Daily Mail Australia they planned to wed 'super soon'.

Geoffrey first introduced the world to Gabi last May when the couple attended the funeral of AFL great Tom Hafey together.