"Oh you would want that, wouldn't you? You see the problem with that is Celestia's death was to quick, to uneventful, but yours," he gave her a soft chuckle as he leaned in close to her as they almost touched muzzles, "yours will be long and satisfying." Luna's eyes widened with fear as he stood back up the evil in his eyes shining brightly as he levitated four large pieces of rubble over and above them. "I'll make you a deal, princess, the more you scream the quicker it will be!"

minor errors with this one, provided below is a revised version:

"Oh you would want that, wouldn't you?" The wretched king asked. "You see, the problem with Celestia's death was that it was too quick and too uneventful," he paused momentarily, his sinister smile unnerving the lunar princess. "But yours," He continued, giving her a soft chuckle as he leaned in close to her so they nearly touched muzzles. "Yours will be long and satisfying." Luna's eyes widened with fear as he stood back up. The evil in his eyes shining brightly as he levitated four large pieces of rubble over and above them. "I'll make you a deal, princess, the more you scream the quicker it will be!"

"No! Don't do it...please, I beg of you!" Luna cried out as the only thing she could do was watch as he began to cut off her left wing followed by her right. He levitated them against his armor and turned to show Luna, a look of curiosity in his eyes.

Taken out of the context of the story, it would seem like king sombra was dismembering Princess Luna, thus, i've given you a revised version:

"No! Don't do it...please, I beg of you!" Luna cried out as the only thing she could do was watch as he began to cut off her sister's left wing followed by her right. The evil stallion then levitated the two dismembered wings of her sister against his armor and turned to show Luna, a look of curiosity in his eyes.

7465286 They are all ponies.