Sisters
I don't know about you but I have four sisters and two brothers. The two oldest sisters are a year and a day apart. This year when 1 turned 65 the other one turned 64 exactly a year and a day apart. They are in two different time zones so when the younger of the two turned 64 it was still the other ones birthday as well and they could tell each other Happy Birthday! I wonder how many other people can say that?
I love them both very much and wish them all the best.