14, Fraternal twins can have vastly different skin colors. This is an incredibly rare phenomenon (the odds of such births are 1 in a million according to some experts), but it does happen. When parents of mixed or different races have twins, they can have quite different skin colors upon birth. A number of cases have made the news in recent years and have fascinated the public at large. Because fraternal twins don’t share identical genetic material, one may inherit the genes for one skin color, the other another. The parents provide potential coding for either.