[Opinions] Re: Cora / Kiara
My humble opinion (being a Jen with a brother named Jon) is that they'll get confused every once in a while, but after a while they'll get used to it. My brother and I still answer to the same name sometimes, which is convenient for Mom because then she can give chores to BOTH of us. :-D
Have you tried calling her Corrie? Like quigonjecca said, could you use her middle name? I hate to see a child having their name changed at four.