Fluttershy is the shyest mare in Ponyville, and nopony would ever expect her of being interested in the opposite sex, let alone have a coltfriend. Well, she not only has a coltfriend she has kept hidden, even from her friends; but he is a patient and kind Zebra that the mare is devoted to. After so long of dating in secret, the Zebra, Spiral wants to take his lover out to a day in private at the beach. But once there, and out of view of anypony, Fluttershy sees how “in love” her coltfriend is with her.

Written by Holocron

Fic link - https://www.fimfiction.net/story/408035/bigger-than-she-thought