Twilight has always had a thing for magical mares. Including her enchanting student Starlight Glimmer. She has always found Starlight to be very intriguing. More than some ponies. But suddenly, the map summons Starlight and Trixie of all ponies, and Twilight gets overcome with jealousy. Of course, there's nothing she can do about it. But when Twilight realizes she really loves Starlight, she can't let Trixie take her away.