Ellen is the girl that Chris dated in Extra Large Medium. Even though she has Down's Syndrome, Chris wanted to ask Ellen out for a long time, believing she was hot. After she and Chris became a couple, it became evident that Ellen was mean, abusive and very demanding. Chris ended up breaking off the relationship with Ellen at the end of the episode. Ellen also tells Chris that her father is an accountant, and her mother is the former governor of Alaska (implying that she is the daughter of Sarah Palin). Ellen also says that Stewie's head makes her laugh.
FG812 "Extra Large Medium"