Sugar Plum and Grape Stem were born on the same day, in the same year, in the Ponyville hospital (but Grape was born an hour after Plum), and their parents were friends. The filly and the colt were very close and it was hard for them to be separated. From early childhood, Grape Stem and Sugar Plum loved to make syrups, cocktails and jam from grapes and plums respectively and were very pleased that others liked it. When Grape's parents took her on a zeppelin cruise, Plum had a hard time getting over being separated from her (as she did from him). But she was relieved by playing with her other friends and the little princess Flurry Heart. Upon returning from the cruise, Grape Stem and Sugar Plum hugged…
As they grew older, they took jobs together at a local cafe, serving up plum and grape cocktails made from their own recipe. They married at the age of 22 and had a son, Sugar Cane. The couple lives in Ponyville.