While Kalani has fair skin and blue eyes like her mother, Jarani has brown skin and brown eyes like her father, which means Kalani is more of a Caucasian while Jarani is African American. Biracial twins tend to occur when two separate sperm cells fertilize two different eggs. Although a few genes are responsible for skin color, the odds of having biracial twins is very low. The babies were very much alike in looks but have distinct skin tones. The family shared photos of the little girls, who are now nine months old.