Tamara Ecclestone wears black bikini as she poses with baby daughter Serena, ...

She became a second-time mother back in September, after giving birth to her daughter Serena following a low-key pregnancy.

And Tamara Ecclestone was every inch the doting mother on Friday, when she took to Instagram to share snaps of herself posing with her newest bundle of joy.

The Formula One heiress, 36, looked sensational as she stepped out in a flattering black bikini while enjoying a stroll in the sunshine during her family's vacation.

Doting mother: Tamara Ecclestone was every inch the doting mother on Friday, when she took to Instagram to share snaps of herself posing with her three-month-old daughter Serena

Doting mother: Tamara Ecclestone was every inch the doting mother on Friday, when she took to Instagram to share snaps of herself posing with her three-month-old daughter Serena

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Complementing her swimwear with a pair of flip-flops, Tamara shielded her eyes with a pair of stylish shades, while she wore her brunette locks in a sleek ponytail.

Adorable little Serena was strapped to her mother's chest on a baby carrier, gazing curiously at the camera as she donned a large strawberry-patterned sun hat.

'Happy 2021,' Tamara captioned the snap, which was followed up with one of her in a stylish black minidress as she posed to Serena and eldest daughter Sophia, six. 

On Wednesday, Tamara shared a snap of herself posing in a black-and-white patterned bikini with oversized black sunglasses and a collection of gold jewellery. 

Stunning: The Formula One heiress, 36, looked sensational as she stepped out in a flattering black bikini while enjoying a stroll in the sunshine during her family's vacation

Stunning: The Formula One heiress, 36, looked sensational as she stepped out in a flattering black bikini while enjoying a stroll in the sunshine during her family's vacation

We are family: 'Happy 2021,' Tamara captioned the snap, which was followed up with one of her in a stylish black minidress as she posed to Serena and eldest daughter Sophia, six

We are family: 'Happy 2021,' Tamara captioned the snap, which was followed up with one of her in a stylish black minidress as she posed to Serena and eldest daughter Sophia, six

Serena looked adorable in a pink frilled baby grow as she sat on her mother's knee for the sweet photo.

Tamara also shared another similar picture where she wore black-and-white striped bikini, to which she captioned it with: 'Same spot.'

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The mother-of-two also posted a sweet photo of sisters Sophia and Serena asleep next to each other in bed. 

While later in the day, Tamara commented on what a 'proud big sister' Sophia is as she pushed baby Serena in her pram.

Radiant: On Wednesday, Tamara looked radiant as she shared sweet snaps of her two daughters from their sun-drenched festive getaway

Radiant: On Wednesday, Tamara looked radiant as she shared sweet snaps of her two daughters from their sun-drenched festive getaway

Adorable: Taking to Instagram, the Formula One heiress, 36, also posted a sweet photo of sisters Sophia and Serena asleep next to each other in bed

Adorable: Taking to Instagram, the Formula One heiress, 36, also posted a sweet photo of sisters Sophia and Serena asleep next to each other in bed

So cute: Tamara posed for an adorable selfie with baby Serena, three months, which she captioned, 'Baby love' followed by a heart emoji

So cute: Tamara posed for an adorable selfie with baby Serena, three months, which she captioned, 'Baby love' followed by a heart emoji  

The family has kept their location a mystery but they jetted off on their sun-drenched festive getaway earlier this week.  

Taking to

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