The twins now go to preschool twice a week. Erin and Jake say the girls' outgoing personalities draw other kids to them and they have many friends. They also spend time at home with their 7-year-old big sister, Courtney, and their younger twin brothers, Justin and Austin.
The girls still face more difficult medical procedures. Each girl has one leg, and neither uses a prosthetic. Kendra has the kidney that she once shared with her sister. Left without a kidney, Maliyah requires dialysis three times a week. Erin plans to donate one of her kidneys to her daughter once she gets clearance from her doctor.
Despite Kendra and Maliyah's historic separation surgery, Erin says she doesn't wish anything had been different. "It made us stronger as a family," she says. "It made our marriage stronger and it made us realize what the most important things in life are, and it's not the material possessions that you have. It's your family and the happiness and the health that you have."
Find out more about how the Herrin twins are doing at HerrinTwins.com.