Laying back in his bed, Dusk Shine, King and ruler of the Crystal Empire, rested his body. He wore no shirt when he went to bed, the only cloth on him was his silk night pants. But tonight, he chose to keep his gold and crystal embedded crown on his head as he reclined. His eyes stared upwards at the Crystal ceiling, where there was once the eyes of a caring stallion now only held the cold gaze of a monarch, his mane down pulled back to further show his change. But more surprising, and drastic was his face, which now held a smirk of dominating authority.

"Keep going." Dusk spoke, his voice the same as before, but with a more assertive pitch. Looking down at his lower region, was his Queen, Umbra. The former tyrant of the old Crystal Empire, the mare who had returned to conquer again, was now at Dusk's lower portion, his stallion cock stuffed into her obedient, silky, and warm mouth. Dusk lay one hand upon Umbra's head, rubbing her well-dressed black mane, as he rested his other arm behind his head. "There's nothing greater than this." Dusk smiled as he saw the sheer joy Umbra felt as she bobbed her head up and down his King's shaft, her tongue taking in every bit of flavor, and gently caressing all his sweet spots. "I have the greatest kingdom under my control, the Elements of Harmony, and even the Alicorn Princesses are now my concubines and slaves, and to top it all off, I have Queen Umbra myself sucking my cock. Isn't that right my slurry Queen?"

"Yes my King!" Umbra moaned, reluctantly taking Duck's cock from her skilled mouth. "All of the Crystal Empire, and Equestria will bow to you. You can have me whenever you want, I am your eager and loyal cock sleeve!"

"Bet you never considered this would happen." Dusk chuckled, gripping at Umbra's mane, making her moan from the subtle pain. "Corrupting me was the best mistake of your life. You were once the greatest ruler and villain in history, now look at you...an eager slut, sucking me like a bit hard in heat."

"Please tell me more!" Umbra cooed, licking at the sides of Dusk's shaft. "I only live now for your rule and your cock."

"Now now." Dusk asserted, pulling at Umbra's mane, lifting her luscious lips to his cock head. "A good Queen makes me cum before I make her feel good."

"Please forgive this slutty mare!" Umbra moaned, shoving Dusk back into her mouth. Her every word spoken between bobs of her head. "Please...give me...your...delicious...cum...let this...horny...mare drink...from you!"

"Good whore Queen." Dusk smirked, thrusting upward while grabbing the back of Umbra's head, preventing her escape. "You've earned the right to drink."

Dusk grunted as his thickened cock unleashed a vast quantity of thick, and hot cum into Umbra's mouth; nearly clogging the back if her throat with its density. Umbra moaned a sultry and vulgar sound as her own unused cunt gushed her own sparkling juices. Dusk chuckled again, Umbra had only returned to Equestria after her millennia long imprisonment less than a year ago, and now here she was, eagerly gulping and savoring Dusk's cum like a sec starved animal. Whether ironic or not, Dusk found great humor in how Umbra thought that corrupting Dusk would help her conquer Equestria. But in the end, it was Dusk that conquered her. Now the Crystal Empire, and all of Equestria was now his to control.

"How is it?" Dusk asked, fully aware of the answer, pulling Umbra's reluctant mouth-pussy away, a few steady beads of cum dripped from her dangling tongue.

"So delicious!" Umbra cooed, shivering with delight. "I don't care for conquest or even a kingdom. You've shown me my true place in life...to service your cock."

"Very good, now clean me off!" Dusk ordered, to which his Queen obeyed.

Umbra obediently did as she was told, using her tongue to lap at the escaping cum. After several long months of nearly constantly servicing Dusk's cock, Umbra had developed skilled mouth, throat, and tongue techniques that would make lesser stallions burst over and over. But Dusk was no longer a lesser stallion, he was the alpha of every male in Equestria, all served or were enslaved.

"Good work my Queen." Dusk commented, much to the sound of Umbra's playful coos as she drank the last of Dusk's cum. "Now, tomorrow, I want to see how that little project I had in mind is coming along."

"It should be going as you planned my King." Umbra smiled as she swallowed the last drops from her tongue. "I will look it over once more if you so desire."

"Then do so, I have gave you your nightly cum." Dusk replied, falling back onto the large red pillow he held behind him. "You may go."

"As you wish my King." Umbra responded with both a smile, as well as getting to her feet, not bothering to put on her night gown. As she left, Umbra opened the door, letting in two well-endowed crystal maids. Both were shaded a sapphire blue, with their darker blue mane curled back, as well as both were Earth mares whose bodies were clearly modified to have their breasts enlarged and their hips widened. "Ah, you two are tonight's side dishes?"

"Yes my Queen." Both responded with low and respected bows. "We are new to this, but are eager to serve our King."

"Very good." Umbra gentle placed her hand on one of the mare's chin. You two look properly prepared for him. You are to do everything he says and never hesitate."

"Yes my Queen." Both mares responded with respectful nods as Umbra let them slowly sway their way over to Dusk's laying form.

"Enjoy and good night my King." Umbra called to Dusk before closing the door behind her. As she walked along the crystal corridor, a smile ran across her face. "The Crystal Empire, Canterlot, and the whole of Equestria will be yours. And I will rule as your Queen."

Author's Note

Okay to anyone who actually reads this, this story is going to be written very slowly. I am only able to get the story during my half-hour break while at work. Needless to say that means updates for be extremely slow and chapters will be rather short. If I get around to it I will consider writing chapters for the story on my own time. But for now I'd like to challenge myself and see where this goes.
Thank you and enjoy!