Karolína Kurková reveals son's excitement at becoming a big brother

Karolína Kurková has revealed her son couldn't be happier since his baby brother was born. The former Victoria's Secret model confirmed that she had welcomed her second child with a sweet Instagram photo of her smiling six-year-old son Tobin Jack on Monday.

"Tobin's #happy and #proud face of being the older brother of #kkbaby2 #Tobin #brothers #kkfamily #love #sweet," Karolína captioned the close-up photo of her happy eldest son.

Tobin's #happy and #proud face of being the older brother of #kkbaby2 #Tobin #brothers #kkfamily #love #sweet

A photo posted by Karolina Kurkova (@karolinakurkova) on

Karolína said her son Tobin was "happy and proud" about being a big brother

Karolína, 31, welcomed a son with her husband Archie Drury in November. The star's representative released a statement to People confirming that she was now the proud mum to a "healthy, beautiful baby boy." The name and date of birth of the newborn was not revealed.

The Czech beauty has not yet given any more details about her baby boy on social media, but on Wednesday Karolína did take time to reflect on her former "Angel" days.

The statuesque blonde shared a picture on Instagram wearing a set of pale-blue wings and captioned it, "Fly #angels #fly", while tagging her close model friends including Adriana Lima, Alessandra Ambrosio and Lily Aldridge.

The Drukova #family surfing day :) #beach #kkfamily #kkbaby2 #funday #sun

A photo posted by Karolina Kurkova (@karolinakurkova) on

The model has welcomed a baby boy with husband Archie Drury

Her snap was uploaded just a day after the glitzy Victoria's Secret Fashion show.

Karolína announced that she was pregnant with her second baby in July. The supermodel took to Twitter to share her joyous news, posting a picture of her son adorably kissing her growing bump.

"My second bundle of joy is on its way and Tobin can't wait! #Happiness #Love #KKBaby2," she wrote.

Tobin was born in October 2009, just a few months after Karolina and Archie married in secret. The couple got engaged earlier that summer while on holiday in Cape Town, South Africa.

Karolina announced she was expecting in July

Shortly after her first son was born, Karolina opened up about motherhood in an interview with Access Hollywood. "I feel very different," she said. "After having a baby things just changed."

"Something inside of you switches and you become this powerful big mama who can deal with anything and do everything. I never sit down. I'm always running around. I'm sure other mothers feel the same way. I take care of the house, I cook, I work and I walk the runway."