One sister, 17 months apart. Not close at all. We were way too different growing up and seriously battled jealousy/resentment. As adults, we both moved out of state to opposite sides of the country. We see each other once every couple years at my parents' for Christmas, and text about specific things 2-3 times a year. We have absolutely nothing in common (except, ironically, the exact same profession). I wonder what will happen when my parents pass--that's really the only thing uniting us.