I don't have a twin but I saw a post like this a few months ago somewhere and I was mad because I wouldn't get to do this. Then I made a friend at work and found out she's 1 day younger than me so now I do this but I tell her what I was doing the day before. On her birthday I called her and said "oh I remember what it was like to turn 26." And I told her about my party the night before that she was at.
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