Meet sisters Lucy and Maria Aylmer. They are twins.
Lucy, left, said their mother was shocked when the twins were born.
The teenager said their friends had even made them produce their birth certificates to prove they are related.
"No one ever believes we are twins because I am white and Maria is black," she said.
"Even when we dress alike, we still don’t even look like sisters, let alone twins. When we’ve met friends for the first time they never believe we are twins and they have even made us produce our birth certificates to prove that we are actually twins."
The twins have three older siblings.
"We don’t look like we have the same parents, let alone having been born at the same time," she said.
The sisters are now studying at different colleges.
Maria is reading law at Cheltenham College, while Lucy is studying art and design at Gloucester College.