Lily shared the cute picture of herself and her mum on her Instagram account after posting a picture of her pregnant mum just a few minutes before.
'#tbt 1984 me in my mummy's tummy' she wrote alongside the first pic, captioning the second, 'A couple of years later'.
30-year-old Lily is now mum to two little girls of her own - Ethel, 3, and Marnie, 2.
- The royals as babies
- Royal baby traditions
- Celebrities with twins
- Creative play: Christmas gift ideas that encourage imaginative play
- Halloween party ideas: Monster Doors
- Best artificial Christmas Trees
- Free knitting patterns
- Top Christmas toys for 2016
- Creative play: Birthday gift ideas that encourage imaginative play