Marcia and Millie Biggs, both 11, from Highgate, Birmingham, looked almost identical when they were first born in July 2006, but their amazing differences soon became apparent.
As little Millie started to become darker-skinned, blue-eyed Marcia took on a lighter complexion, growing blonde, curly hair.
And mum Amanda, 46, has had to warn King Solomon International Business School in Aston, Birmingham, where they will start secondary school on Thursday, that they are actually twins.
Marcia has inherited her mother’s fair complexion and golden brown hair, while Millie takes after dad Michael, 50, who is of Jamaican origin, with her tight dark curls and darker skin.
The couple have both told of how they are repeatedly stopped in the street when baffled passers-by catch eyes on the lovable pair.
Teachers at their old school, Osborne Junior and Infant School in Erdington, Birmingham, also struggled to believe that the pair were related.
Amanda, a dinner lady, said: ‘Even when they were at primary school, people would get confused.
‘I’d be picking them up after school, and the other parents would stop me and say: “are they your daughters?”
‘When I told that them that they were twins, they would always be stunned. I notice a lot of people doing double-takes.
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