Jamie Oliver and Jools shared the most adorable picture of their youngest son River earlier this week rocking one of his mum's latest designs.MORE: Jamie Oliver shares gorgeous new photos of his kids – and they look so alikeTaking to his Stories, the chef posted a picture of River smiling broadly whilst wearing a pyjama set from Jool's Little Bird collection which is available through Next. WATCH: Jamie Oliver dances in car with youngest son River in adorable video"Happy indeed @joolsoliver,"