'Hello summer!' Natalie Roser leans on a car bonnet and flaunts her ample cleavage in a plunging red crop top

 She's the bubbly blonde who isn't afraid to flaunt her bikini body on social media.

And on Thursday, Natalie Roser shared a very revealing photo to Instagram to celebrate the beginning of summer. 

The Australian model flaunted her ample assets as she posed out the top of a car sunroof.

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'Hello summer!' 25-year-old model Natalie Roser shared a busty photo to Instagram on Thursday to celebrate the beginning of summer 

The leggy blonde wore a plunging red bikini top which showcased her model cleavage.

The 25-year-old's long golden locks were swept over one side of her face, cascading down past her right shoulder.

Natalie peered through the car's sunroof smiling from ear to ear, her taut tummy and ribs on display.

She looked relaxed as she leaned forward on the car with her long arms.

Beach babe: Natalie's hair was waved and she added a touch of pink to her lips at a swimwear launch on Wednesday

Blonde beauty: The model frequently flaunts her enviable physique on Instagram 

 Natalie captioned the photo: 'HELLO, SUMMER!!!' 

The revealing photo comes as the model has been photographed in public without her engagement ring.

Last week, the blonde beauty was seen twice without her sparkler in Sydney.

The 25-year-old postponed her October wedding to celebrity personal trainer Dan Adair.

Where's the ring? Model Natalie Roser steps out without her engagement ring as she's spotted with a mystery man at Sydney's Tamarama beach last Tuesday

 Natalie has been engaged since 2015 and no new date has been set for the ceremony.

The Sydney-based model had already confirmed on Instagram that she was having a gown created by Pallas Couture for the wedding.

Natalie took to Instagram last year to announce she would walk down the aisle to marry 'the most loving partner and all around best person.'

Fiancé Dan popped the question in July 2015 during a holiday on Coco Plum Beach in Florida. 

All black: The 25-year-old was spotted without her engagement ring as she enjoyed a casual stroll at Sydney's Bondi Beach last Friday with a male friend

 

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