There's no way that the eternal student, Twilight Sparkle, would ever just walk up to the object of her affections and confess her love without preparation, right? So when she shows up at Rarity's doorstep, frazzled and out of sorts, to ask about love of all things, Rarity knows what she needs is to be taught. Of course, Rarity's no Princess, but she knows a thing or two about romance, so what else can the Element of Generosity do but offer lessons?
A couple pretend dates and some pretend kissing will give Twilight the knowledge and confidence she needs to ask her prospective special somepony out... But who is this mystery mare, anyway?