Fiona Falkiner and Hayley Willis take their son Hunter on his first flight

Fiona Falkiner and her fiancée Hayley Willis pose with their adorable five-week-old son Hunter

Hayley Willis dotes on son Hunter a month after welcoming her baby boy with fiancée Fiona Falkiner

Biggest Loser host Fiona Falkiner welcomes her first child with fiancée Hayley Willis