Sherri and Terri of Simpsons fame, are identical twins with long purple hair. They are in the same class with Bart at the Springfield Elementary School. In one episode it is revealed that their father is Homer's supervisor at the Springfield Nuclear Power Plant.
He fires Homer for causing an accident while waving to Bart from a cart during a school tour of the plant. Homer, however, had the last laugh when he was promoted above the twins' father to safety inspector. Their mother is shown in one episode and looks just like her daughters. Sherri was born first; they share their birthday with Rod Flanders.
The girls themselves dress identically, reinforcing their ‘twin-ness’. They are quite stuck up, and never miss an opportunity to berate Bart. Bart appears to have a crush on one of them. Sherri referred to Bart as an ugly, smelly dork, but was convinced by Homer to go on a date with Bart after he told her that neither she or Bart could do much better. One of the twins stated that her sister had a crush on Bart in one episode. Another time Homer openly addressed Terri as ‘the one Bart has a crush on’. However, Bart seems to have forgotten about his crush (as he has many other loves not long after) and most likely ended the relationship altogether.
In one episode, when Homer briefly commanded a nuclear submarine into Russian waters, Principal Skinner prepared for nuclear war by selecting a small group of the best, brightest and most promising students to accompany him to a shelter. He selected Sherri, but not Terri.
In the episode ‘Future-Drama’ set eight years in the future, it is revealed that Nelson Muntz simultaneously dated and impregnated both of the twins, who bore him four children (two sets of twins, naturally) shortly before Nelson's high school graduation. He abandoned them during Bart's graduation party.
In the episode ‘Last of the Red Hat Mamas’, it is revealed that they have a secret twin language that only they can understand.
