At her Brother's Command

The crystal castle at the centre of Ponyville glowed bright of its own light even as the Sun shone up in the sky, radiating the mental magic that coursed within it through the whole town. Ponies in the streets went about their days as if all was as it should have been, not bothered in the least by what they knew of what was happening within the castle's walls and by what they heard from those they saw walking in and out of its doors.

Big Mac, in particular, was heading for those doors, carrying along a cart full of food and other necessities for Ponyville's King. Certainly the King could not be expected to worry about something like that himself, busy as he was, and neither could all the mares he had claimed as his own. They had the far more important task of attending to the King's pleasure, and Big Mac was proud of his sister for being among them, and more than happy to be contributing himself in some way, both with supplies and with housing Spike.

Within the castle itself, things had changed slightly in the past weeks. The main pervasive change was the constant blue glow the walls gave off, lighting the inside of the building with daylight clarity at all times. The map room, technically the previous throne room, had undergone the most changes. The roots of the tree above had been stripped of their reminders of Twilight's old, worthless life, and were slowly being decorated with effigies of her King's magnificence and control over his slaves, while crystal slowly encroached upon them. The map itself had been left intact, begrudgingly, for its utility. But the thrones around it had been bent and fused together into a single, far larger one standing tall above the table, so that Shining could sit comfortably on it and rest his hooves atop the projected image of Equestria as he did. That had pleased him indeed.

He sat there, naked, with the Elements still decorating his cock. To one side of his shaft, Cadance leaned in and licked along the length, one hand on her swollen belly. Her due date was approaching, if still not too close yet. To the other side, Twilight leaned towards his balls, licking them with passion and devotion as befitting her new role. Her pregnancy did not show yet, but it had been confirmed. Both alicorns had their horns connected to their King's, feeding him power as was right of them to do, and both wore golden collars with gilded chains tying them to the Element of Magic at the base of his cock.

Twilight herself had undergone perhaps even more changes than the castle she had once foolishly called her own. With Shining's knowledge on the matter, her body had been remodeled as she'd always craved and as her King approved of. Her breasts had been made fat and heavy, perhaps even more than Cadance's naturally were. Her ass too had grown, made bubbly and shapely and large. She looked every bit as sexualised as a fucktoy like her was expected to be, and she loved everything of it, including her newly pierced nipples.

She had not been the only one to undergo such changes. Rarity had begged at Shining's hooves for the same treatment, and had been granted something not too far from it. Starlight's breasts and ass had been made a little bigger too. Rainbow still refused to even consider it, and Shining had not yet decided if his desire to break her will outweighed his enjoyment for variety. Applejack, perhaps strangely, had had her own already impressive ass made just a bit more rounded. But the mare did seem to have a predilection for ponies' behinds, given how often she lavished Shining's firm and muscled ass with her tongue.

Shining had been far more liberal in remodelling those mares that were not prized as a part of his harem, but merely concubines he had every right to make his own. Lily, Rose, and Daisy standing behind his throne and fanning him with leaves as they adorned his head with flowers, Aloe and Lotus oiling his skin and massaging his muscles, and Lyra and Bon Bon respectively entertaining him with music and songs of praise and feeding him candy; all of them had had their proportions adjusted, fat tits and asses he could easily enjoy on otherwise unimportant fucktoys like them. The same went for Trixie, standing still near a wall as the room's clothing rack. Of course, the only kind of would-be clothing his slaves could have were sex toys, resulting in all her holes being full and her nipples clamped. She did not move, staying still just as she'd been commanded to, even as the toys buzzed within her. All had been impregnated with his seed, of course, but that was merely the way things were meant to be.

The remaining Elements besides Twilight, those she'd once called friends, were on the floor around the new throne, all looking up at Shining with dreamy expressions and either masturbating or fucking each other. They too were all pregnant, having received him before he'd even claimed Twilight herself. He made regular use of them whenever he wished to, as was his right and his main form of entertainment. They were not as good a fuck as an alicorn, but he still rather enjoyed them. He was planning to take them back to the Empire when he returned, not too far in the future. They were to never leave his side again. Starlight, too, as she would love to reunite with Sunny.

He looked them over briefly. Applejack had Rainbow Dash pinned to the ground, forcing her to lap Shining's cum out of her pussy while she herself played roughly with her own tits, something Rainbow did eagerly. Pinkie Pie was fingering herself as she tried to sneak towards the bowl of sweets Bon Bon kept by the throne, and Shining thought he would enjoy punishing her for trying to take what was his. Fluttershy was on her knees just past the edge of the map, staring at her King with a mindlessly blissful expression as she breathed slowly and deeply, with her hands over her huge tits absentmindedly pinching and twisting her nipples. Shining would get another titfuck out of her later, and many more in the future, as even after he'd changed the others she still had the biggest tits out of his slaves. Rarity lay on her side, trying to maintain an air of dignified superiority even as she stretched her ass with a large, smooth crystal dildo. She intended to be the first of them besides Twilight to manage to take him from behind and was training for it, though Shining knew Fluttershy would have her beat there.

Lastly, his gaze fell to Starlight, sleeping on the floor at the edge of the map, just to Fluttershy's side. Suddenly she stirred, and Shining's cock throbbed. She rose to her knees, blinking to reveal the glowing hearts within her eyes, and bowed before speaking. "It has been done, my King. Your plan has succeeded, as it was bound to."

Shining's face broke into a cruel, utterly pleased grin, and his shaft throbbed and leaked. He took hold of his sister by her horn and planted her face before his tip, then shoved his length whole within her tight yet unresisting throat. His horn flared, drawing more power from Cadance and Twilight as his muscles flexed and he started to jerk himself off with Twilight's head. The castle's glow pulsed, making all its female inhabitants grow dizzy for a moment, and all those outside blink once, as the spell thrummed in tandem with his desire for control.

Cadance leaned down, turned onto her back, and began to kiss Shining's balls. "Shall we need to prepare a new facade to trick her, my King?" she asked between kisses, inhaling his musk deeply and letting her mind fog as she felt her body grow weak from his drain.

Shining chuckled, feeling Twilight's throat give way fully as the lack of proper breathing made the alicorn go limp, only half conscious. "No," he said with confidence. "Let Luna see me in all my glory and witness my power, if she chooses to come. Let her be crushed and forced to kneel before me. I do not need to hide anymore now that none can stop me." With his own magic he forced Cadance to gobble his balls, delighted by the sputtering sounds she made as she struggled to fit them in her mouth and choked on their sheer size. "Not that there will be a need for it. That fool will be broken before she even steps within my castle." He hilted into Twilight's mouth, her chin pressed to the gem that had once been hers, and he came hard, the sound of his throbbing cock filling her drowned out by the moans of all the mares around him at his words. His horn pulsed bright and all his slaves around him shuddered and came, compelled to bend and climax under his control.

One more alicorn would soon be his, and then only one more would be left before all of Equestria bowed to its rightful King.