Cadance screamed. Her hand ached and burned where she had touched it. The piece of Sombra sat innocuously on her bed.

I t had been stupid to pick it up. She had hoped to understand it, to use that knowledge to protect the crystal empire, but the horn was clearly a trap.

Cadance doubled over. She felt the magic crawling along her skin, inside her blood and through her veins. It burned. She brought her hand up into the light. It looked like the black crystals that had been on Shining’s horn, but thinner and finer. Her fingers still moved, her joints still worked. It almost felt like a glove, like clothing, even though it had been created by dark magic.

She grunted again. The magic crawled up her arm again, past her elbow and towards her shoulder. She could cut off her arm, perhaps, purge it with magic, but she needed Shining’s help to activate the magic.

Her legs buckled. Her entire right arm was solid grey-black now. The same color as Sombra. The crystal shell kept moving. It spread so fast, she couldn’t even think of how to panic properly. The magic traveled across her breast, and she gasped. It felt so warm and inviting as it struck her nipples and kept moving.

Her corrupted arm traveled down to her crotch.

“No...” she whispered. She felt so warm, though. She began to rub herself, the arm refusing to follow her orders. She felt the blackness spread across her vagina and down her legs, like her arm had spread it wherever she touched. Her other arm slid onto her chest, rubbing at her nipples.

She felt so warm, so hungry and pent up and needy. She moaned. She barely noticed the magic finishing along her legs, traveling up her neck and into her mouth and ears and nostrils and eyes. It felt warm.

She gasped. She saw pictures, mental images: ponies being violated, broken, used. By her. She shook her head. Sombra’s memories must be corrupting and influencing and caressing her. She shook her head again, but the the thought stuck in her mind.

She moaned again, louder than before. She felt her clit burn, pulse with lust as the crystal swept across it and grew outward. She didn’t think to stifle her moaning, it just felt so incredible. Her body felt warm, her arms moved faster, her mind clouded with the thought of fucking somepony into submission.

She came, felt warm, sticky magic spray out of her and onto the bed.

She stood up, turned to her mirror. Her new body looked almost the same. Her coat had turned black from the coating of magic, but her body kept the same shape. Her mane kept the same color. She examined her arms and legs; they had a slight sheen to them, her fingernails and toenails had gotten sharper and longer.

She smiled. A huge, erect cock poked out of her crotch, where her clit had used to be. She adjusted it, and saw her pussy right below it. She dripped all over the floor, white fluid that struck the ground and evaporated into black smoke.

She licked her lips. Shining would help her. He would understand, and he would let her violate him. If he didn’t, she knew quite a spells that would break his mind or make him more agreeable. Sombra’s memories had quite a few interesting tidbits.

She ran a finger along her new body. Her skin felt so smooth. Her cock twitched at the thought of pressing into her husband, of filling him with her fluids and magic.

She called a servant, told them to summon Shining Armor. Her voice sounded the same, perhaps a bit more sultry, after her transformative experiences.

She had wanted to understand Sombra, certainly. Perhaps he had some good ideas, after all.

Author's Note

Partly inspired by this picture.