NICK and Catherine Riewoldt have welcomed their first child into the world, with Catherine giving birth to baby boy James late on Thursday evening.

James Lawrence Riewoldt was born weighing a healthy 8lbs 13oz.

"And just like that... my heart is full," Catherine posted on Instagram.

"He is as perfect as can be. Such overwhelming and indescribable love!!!"

It's been a fruitful 2014 for the St Kilda Father/Son academy, with Hunter Hayes and Ryder Blake joining Stewart Loewe's twins Lachlan and Tom earlier this year.

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