Sugar Pie is the only daughter of Big Macintosh and Fluttershy as both of them mostly had sons. She was born with dyslexia and impaired speech which made it rather difficult for her to make friends in the beginning. At first, she was not interested in going to school due to the fear of isolation and bullying, and Fluttershy agreed with the choice not to send her to school, but Big Mac assured both of them that Cheerilee would take good care of her because he fully trusts his dear friend. Sugar Pie attended school when she became comfortable enough and made herself the poster child of challenged children. Despite her poor speech and reading, she performed well at school and discovered her talent during a school bakery in which she won first place for her tea cakes. Sugar Pie however, was not above cracking under pressure or drowning people out when she wanted to be alone. Her brothers serve as her protectors, but they also aggravate her as well.

Her mane color is a combination of both Mac’s coat color and Mrs. Shy’s hair color.
She also inherited her red eyes from her grandma. Her pink coat is from Fluttershy’s hair, and if you’ve noticed, the design sorta represents wet maned Applejack