>filly was born a pegasus
>never went to flight school, never learned to fly
>hides her wings under a blanket or something to fit in
>RD show her how to fly
>freaks her out at first, starts to like it
>goes home for reasons
>blah blah my flight saves the day
>gets cutie mark
"Dear Princess Celestia
You shouldn't be ashamed of the things that make you special"