Nightmare Moon must come first in your heart. Always. To betray one's devotion to Her Majesty with love for another is an act of high treason: a Heartcrime. Night Chamberlain Rarity's sure she's not a criminal. But she's been wrong before.
Dusk Shine is a stallion that would do whatever he needs to survive. Even if that meant sleeping with Nightmare Moon herself for bits. But when he stumbles across a crystal table deep in Everfree, he'll realize that there is alot more than the night.