Liverpool's happiest baby. Image: Liverpool Echo

The Liverpool Echo has shared this adorable image of a 30 week old baby, who was captured smiling in the womb when her mum went in for a 4D scan.

Mother Aimee Fagan said that the baby, due in January, grinned from ear to ear whenever her three-year old daughter Mollie spoke to her bump.

"The sonographer said she had never seen a baby smile so much.

"I went in for the scan and the baby was hiding at first and wouldn't let us have a look at her. Eventually when she did move, my little one Mollie was talking to my bump and the baby just kept smiling.

"We wondered if it was because of Mollie and the lady said 'stop talking for a minute', then the baby stopped smiling.

"As soon as Mollie started speaking again she was just smiling away as if she recognised her."