Dipper and Mabel Pines from my latest (and favorite) Brony Ford AU

Basically, Ford Pines from Gravity Falls discovers MLP and binge watches the entire series in record time. He then creates an AU where the cast of GF and himself are ponies, and Ford is the pupil of Queen Twilight Sparkle. Mabel and Dipper here were dumped by their mother, Sherbet, with their Uncle Stan to live with him after their father Shermie died. Mabel is heavily interested in the crystal colts walking the streets, while Dipper is just trying to figure out why he was born with his cutie mark.