'Look mum I'm a mermaid!' Imogen Anthony continues birthday bash by swimming in a FISH TAIL costume... as Kyle Sandilands gifts her a Rolex

She's been celebrating her 26th birthday in the Whitsundays. 

And on Sunday, Imogen Anthony dressed up as a mermaid and went for a swim with a fish tail on. 

The blonde beauty took to Instagram to show off her colourful fish-tailed costume with fans, before revealing that she was gifted a Rolex, presumably from boyfriend of five years, shock jock Kyle Sandilands.   

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That's a way to celebrate! On Sunday, Imogen Anthony dressed up as a mermaid and went for a swim with a fish tail on as she celebrated her 26th birthday in the Whitsundays

'Look mum I'm a mermaid,' Imogen captioned one Boomerang video of herself diving into a pool with the tail on.

She captioned another shot where she poses with the tail on and a string bikini top: 'Today so far I snorkeled on a reef, swam with sea turtles, frolicked in the resort pool with a mermaid tail on whilst sipping coconut Piña coladas and eating wedges with sweet chilli and sour cream. #bdaygirl.'

She also shared one of her presents with her more than 130,000 followers, a Rolex Box, that was captioned 'holy s**t.'

What a gift! She revealed that she was gifted a Rolex, presumably from boyfriend of five years, shock jock Kyle Sandilands

She said she was 'dead' after receiving the pricey gift. 

Kyle's KIIS FM radio co-host Jackie O remarked underneath the post: 'Babe that's amazing!!! What did you get? Kyle knows I've been wanting a Rolex watch for like a million years. So jealous. Happy birthday. Can't wait to see which one you got.'  

It comes after the budding model posed topless at the beach, placing sand on her breasts. 

In another shot, she covered her assets with coconuts.

Going strong: Imogen is seen here with Kyle at the ARIA Awards in November, in Sydney

If you've got it! It comes after the budding model posed topless at the beach, placing sand on her breasts

That's some bling! Kyle and Imogen recently sparked engagement rumors with when she posted an Instagram video of a huge diamond ring (seen)

'I've got a lovely bunch of COCONUTS... because it's my BIRTHDAY,' she wrote in the caption. 

Kyle and Imogen recently sparked engagement rumors when she posted an Instagram video of a huge diamond ring.

She later clarified that the jewel was actually replacing a different ring that she had lost or was stolen from her.

In August, Imogen spoke to Daily Mail Australia about the constant speculation about the couple's marital status.

'There's always rumours, there's rumours we've been engaged for three years, no we just chill, we don't need rings and stuff,' she said 

'There's always rumours': In August, Imogen spoke to Daily Mail Australia about the constant speculation about the couple's marital status

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