Unnamed Simpson daughter

The Simpson daughter is an unnamed, possible daughter of Homer and Marge Simpson from Bart's vision.

History
When Bart tried to convince Marge to have another son, so he would have a little brother, Marge told him that it could be another sister. Shocked Bart imagined himself as a teenager, going shopping with older Lisa, Maggie and another sister. He had to hold all of boxes and bags of clothes the three had bought, and listen to their talking. When the vision ended, Bart realized that he couldn't risk another sister.