Lucy and Maria Aylmer look completely different to one another despite the fact they are 18-year-old twins.
Classmates had no trouble telling the sisters apart at school as Lucy has white skin and straight red hair and Maria has dark skin and thick curly locks.
Because of a rare scientific quirk as a result of their mum and dad’s mixed-race pairing, they were born with different coloured skin.
Doctors say the rare occurrence is said to have a “million to one” chance of happening.
The girls’ mum Donna is half Jamaican while dad Vince is white.
Blue-eyed Lucy said: “It was such a shock for mum because things like skin colour don’t show up on scans before birth.
“So she had no idea that we were so different.
“When the midwife handed us both to her she was just speechless.”
The twins, 18, are the youngest of five children.
“Our brothers and sisters have skin which is in between Maria and I,” Lucy said.
“We are at opposite ends of the spectrum and they are all somewhere in between.
“But my grandmother has a very fair English rose complexion, just like mine.
“No one ever believes we are twins.
“Even when we dress alike, we still don’t look like sisters, let alone twins.
“Friends have even made us produce our birth certificates to prove it.
“Most twins look like two peas in a pod – but we couldn’t look more different if we tried.”
Maria is studying law at Cheltenham College, and Lucy is studying art and design at Gloucester College.
Lucy said: “Maria was outgoing whilst I was the shy one.
“But Maria loves telling people at college that she has a white twin – and I’m very proud of having a black twin.”