Experts say that the occurrence of one twin being black and one being white is one in a million, or less. The parents of these rare twins are of mixed races - father Stephan is a Caucasian from Germany, mother Florence is of African descent from Ghana.
The twins' mother, Florence, 35, is from Ghana, west Africa while their father, Stephan, is German.
Stephan, 40, said though the couple were surprised by the colourings, the most important thing was the babies were healthy.