Taxi! Imogen Anthony falls down staircase at upmarket venue in Sydney as she lets loose on night out

Kyle Sandiland's ex-girlfriend Imogen Anthony took a shocking tumble down a set of stairs on Tuesday night after celebrating a friend's birthday in Sydney.

The model, 33, almost suffered serious injury when she slipped and nearly crashed to the floor while walking down a staircase in a set of heels. 

Sharing video of the shocking moment to Instagram on Thursday, Imogen could be seen attempting to hold her long skirts up off the ground when the accident occurred.

However, one treacherous step saw her slip as her arms flailed out to catch herself on the wall while the person filming rushed forward to help steady her.

Thankfully, Imogen appeared to suffer no serious injury from the tumble, and later laughed it off when writing her caption. 

'Why do I take the worst photos on the best nights? It's the soap dispenser for me lol,' she started, referring to one of her bathroom selfies from the fun night.

'Just a casual Tuesday summer evening, celebrating the birth of my beautiful bff and Saggi sister to my Aqua, Katie Koo.

'By the slides, I think it's pretty self explanatory that what started as a demure evening, definitely did not end as such and we really did try.

'But at least the food was amazing… I think. The vintage [Ema Savahi designed dress] is definitely gonna need a dry clean though fml. Sacrilegious, I know.'

Imogen's gown for the evening was a colourful piece with a beautifully embroidered bodice that featured racy cutouts at the waist. 

The long beige skirts of the frock brushed the ground and hid the silver heels which almost sent her flying at the end of the night. 

Imogen opted for some chunky pieces of silver jewellery to complete her look, slicking her blonde tresses back into a very tight up-do.

The beauty then elevated her genetically blessed features with a very glamorous makeup look that included a blinding highlight. 

Imogen appeared to have quite the fun night as she was seen twerking her behind on the dance floor moments before her fall.

It comes just days after Imogen risked a major wardrobe malfunction in her latest photoshoot on Saturday as she stepped out in a very raunchy black maxi dress.

The model bared plenty of skin in a frock from Outcast Clothing which featured daring cutouts in the front that barely covered her chest.

Threatening to spill out of the material, which was held together by a silver chain, the blonde beauty flaunted her incredible frame as she posed up a storm on Instagram. 

Putting on a leggy display with the hip-high split, Imogen told followers the scrap of material was a 'metaphor for her mental health'.  

She captioned a reel of photos of the racy look with: 'The dress is a metaphor for my mental health… So you’d be surprised how well it’s holding its s**t together.'

Imogen proudly showed off her abs in the gown, rocking the one-shouldered asymmetrical sleeve and maxi train. 

Pairing the look with some strappy black heels, Imogen sent temperatures soaring in the photoshoot which saw her pose in front of a horse statue.