"Applejack?"
"Yes Twi?"
"I found this book outside the Everfree Forest... It seems to be Apple Bloom's diary."
"Mah sis kept a Diary? Does it say what happened to her?"
"...Yes..."

TheLostNarrator did a fantastic reading of this story some time ago; find it here.
Now with a reading in Finnish, courtesy of DubbiKnight.
And a reading by Lotus Moon.

When a noblemare meets an attractive young pegasus, she questions whether her commitments are promises worth keeping. Of course it doesn't help that this pegasus is hungry for more than fancy hors d'oeuvres.

Night One

"Why is she standing out there? What does she want?"

Night Two

"There's something off about her...."

Night Three

"That's not Fluttershy..."