Applejack has always had a secret dream, one that some ponies would find strange for the tomboyish farmer. She's always wanted somepony to treat her to a special romantic night, while being treated like a real lady. Turns out all she had to do was have a certain rainbow-maned pegasus catch her in a dress.  Such an awkward moment will lead them to a night neither will ever forget.

The original fanfic can be found here:
http://www.fimfiction.net/story/74679/treating-her-right