Cousins Born to Two Sets of Twins Are Genetically Siblings

They're the identical twins who married identical twins - and now their unique family is even bigger with the addition of two babies! Inside Edition has followed them every step of their relationships, from their double proposal engagement, to their walk down the aisle together, tying the knot in a double fairy-tale wedding. They both recently welcomed two baby boys, named Jett and Jax. The babies are cousins, but genetically they are considered siblings, since they share the same two sets of DNA.