Hot Buttered Ed/High Heeled Ed - S2-E12
Continuity mistake: In Hot Buttered Ed, when the camera shows a close-up of Sarah and Jimmy making a unicorn out of sand, Sarah's swimwear is yellow, but 4 shots later, another close-up of just Sarah, her swimwear is now pink. (04:39:00 - 04:56:00)
Answer: She's just a spoiled, bratty younger sister.
Rob245