is a Simpsons
fanfic by Graham Dawson. It can be read in two parts here
The year is 2028. Lisa and her husband, Matt, are happy to hear of Maggie's engagement. Maggie and Bart go to Lisa's house in Capital City to discuss it. Bart pulls out an old photo album and they look through it. Matt notices a picture of Lisa's twin sister, Suzy, and is immediately curious. Bart convinces Lisa to tell the story.
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