What is it about sisters?

Today I get to welcome author Paulette Harper to my blog. Her recent novel, Living Separate Lives, is touring the internet with Juniper Grove, and there's a great prize waiting for someone in the rafflecopter giveaway (below). Since the novel involves sisterhood, and I have no natural sisters, I asked Paulette what it is about sisters that inspires such deep feelings. She gives us her answer below
 
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