Hivemind Control

The carriage stopped at the castle gates and the door swung open. Cosmo stepped out first, and taking Luna's hoof, helped her to the ground. As expected, she was still stable, not shaky or wobbly at all. Her treatment in the bathroom had allowed her to hold onto her mind for a bit longer, and she was feeling spectacular.

"So this is the castle," smirked Cosmo. "I've never been quite this close before. Never really needed to, and I had yet to witness your beauty, so that couldn't draw me here."

Luna let out a coquettish chuckle. "You're such a charmer. Come, I'll show you around a bit."

A short tour isn't exactly what Luna had in mind, but with her nerves having calmed a bit, she wanted to give Cosmo all the time he needed to be ready again. After all, stallions had a refractory period that they needed to pass before becoming intimate, so killing a few minutes would make it easier for him to do what she needed.

Despite needing to wait, the tour was rushed, and didn't really show that much. First was the dining hall, which was not in use at the moment. It was oft only used in events, as simple dinners were often just brought straight to the princesses. This was especially true in the event that they were busy or in conferences, so they could continue with their business without needing to stop.

Next was the throne room, currently empty as Celestia was in one of the conference rooms, combing over an incident that had the potential to upend a treaty between the Zebrican Empire and the city-state of Griffinstone. She was acting as a mediator, as any war between them would end up on Equestrian soil. It was therefore in her best interest to see it solved quickly.

By this time, Luna was beginning to lose her edge again, so she skipped a few spots on the tour, leading him right to the end: her bedchambers. She pushed the door open and ushered him in, locking the door behind her. The lock was on the inside, so he could still leave, but nopony could come in without the key.

"And here we have the most important room," smiled Luna, walking over to the bed. "You don't have anywhere to be tomorrow, right?"

"I have to tend to my orchard, but that should only take two hours," he answered. "And I should probably talk to Fancy Pants again about his tree, too."

"But nothing in the morning?"

"Nothing in the morning, no."

"Good." Luna pulled off her dress and tossed it aside. Climbing up on the bed, she spread her hind legs and pressed her chest against the bedspread. "Then you'll have no qualms about falling asleep inside of me." She whipped her tail up over her back, letting it fall between her wings. She was absolutely dripping. "Now ditch the clothes and come fuck me!"

Cosmo didn't need to be told twice. His shirt and vest were draped over the back of a chair, and he climbed up as commanded. Rubbing his shaft along her slit to better lubricate it, he chuckled at her needy whimpers. "You need this so very badly, don't you?" he asked.

"Yes!" shouted Luna, her mind going crazy at the thought of having his dick inside of her. She no longer cared if she would ever return to what she had been a month ago, she only knew that the only thing that could make her feel good again was dangling between her legs, teasing her. "Please!"

"How badly?"

Luna's breathing quickened. "Very badly!" She shifted her hips forward and tried to impale herself, but to no avail. "Put it in already!!"

"Would you do anything for it?"

"Yes!!"

"Would you be willing to demean yourself for it?"

"Yes!!!"

"Would you worship it as a deity, and drink down everything that came out of it whenever I ask?"

"YES!!!"

Pleased with himself, he lined himself up and pushed inside in a single thrust. At the very instant that his testicles hit her clitoris, the orgasm she'd been denied for several days was granted, and all that she had just agreed to was cemented in her mind as the key to this indescribable pleasure. Her mind shut off and was filled with nothing but thoughts of his cock and how to please it. In half a second, it had melted away all of her turmoil, and she was filled with so much happiness that she couldn't form words anymore.

"Enjoying yourself, Luna?" asked Cosmo. "How does it feel?"

"Aaghaahaaa!!"

"Doesn't it feel good to submit to my cock?" He began to thrust, slowly at first. "In a manner, I've fallen for you, Luna. If you were to beg me to stay with you every single night, I would. If you want to suck my cock, or take it inside of your pussy, all you have to do is make it worth my time." He began to thrust faster. "You will bow to me, and doing so will bring you such anticipation that you can't resist my words. I can take your troubles away."

Luna moaned in intense pleasure. She couldn't comprehend a word of what he was saying, she just loved hearing his voice. She had been compelled to listen to other stallions, but she couldn't hear enough of Cosmo's words. Just the fact that he was talking to her made her pleasure spike, pushing her right back to the edge much faster than usual.

With a second intense discharge, she melted down onto the bed. Her head was nothing but mush. She couldn't focus on anything, but knew very well that she would be sleeping very well tonight. As she drifted off into slumber, she could taste him, but something was off about the shape. It was easier to swallow, and the flavour was far more pungent.

A part of her thought to question this, but it was only a small piece. Most of her was too wrapped up in bliss to care. She needed Cosmo, and now she had him. She could call him up to her chambers whenever. If she wanted his cock, all she needed was to beg; to prostrate herself to him, and he would grant her all of her wishes.

When she woke the next morning, she was covered head to hoof in semen, as was Cosmo next to her. The head of his dick was still in her arse, but not for long. She pulled it out and slurped the whole thing into her mouth. He was her new sex toy, and was all kinds of fun. She would do just about anything to keep him around. After all, he alone held the key to her happiness.