Denial

Luna smiled to herself, pausing her teasing for just a moment in order to observe the state her sibling was in. Celestia wasn't far, the mar kneeled almost reverently on Luna’s bed, ass raised into the air and head low. With an arched back, and her rear legs spread wide, Luna was able to see everything the older mare had to offer.

From her pert, and occasionally pulsing asshole, down to her dangling balls and large low-hanging teets. Her cock would be visible, but by the sounds of it, that particular appendage was currently in use. An assumption made event by the way that Celestia continued to twitch and moan even while Luna did nothing. Nothing save stare at her, Luna observing the pony closely and focusing mainly on her sister’s aching sex. Puffy, drenched in juices, and inflamed by a lust so intense it no doubt burned almost as hot as the sun she moved each day.

“Luna, please let me cum, please,” Celestia whined.

Luna smiled, watching as Celestia twitched and shifted from hoof to hoof, struggling to stay stationary. The darker alicorn could detect the desperation in Celestia’s voice and knew that she was reaching an entirely new level of need. Having not orgasmed since Twilight had tested the potion on her, the alicorn hadn't abstained for this length of time in ages.

“Please fuck me, I need to cum,” Celestia complained. “Conjure a cock and stuff it in me, make me bounce on that giant toy you bought, jam your horn in me just do something, please!”

“Are you sure you’d like that dear sister?” Luna remarked.

Luna paused, and extended a wing, caressing her sister’s marehood with a single primary feather. The sensation sent an intense and visible pulse of pleasure up Celestia’s spine, making her muscles ripple. When the wave of ecstasy reached her head, the mare arched her back, attempting to push herself against the feather. Luna, however, pulled it back, leaving Celestia to vainly push her ass in the air, attempting to follow the fleeting thing.

“You seem to be enjoying my feather very much,” Luna added.

“Yes, just fuck me already. Do whatever you want to me, just please let me finish,” Celestia continued.

“Unlike you dear sister, I am merciful. Thus I will grant your request and fuck you as you so desire,” Luna proclaimed.

“Oh yes, thank you please give it to me,” Celestia urged, the mare sticking her butt out as far as the position would allow.

Luna chuckled to herself, the mare biting back a wolfish grin, keeping the expression from reaching her face. She then produced a long pink toy from the end table closest to her and activated some unseen switch. The bulbous hunk of animated silicone sprouted a small secondary nub before the entire thing began to vibrate.

“Oh yessss,” Celestia exclaimed.

Luna grinned, and leaned forward, getting in close before she dipped the toy down towards her sister’s dripping sex. The moment it came in contact with Celestia’s puffy, overstimulated lips, the solar princess nearly jumped out of her skin. She settled quickly though, immediately aware of the fact that Luna had ordered her to stay in that same position and not move.

“Good girl,” Luna purred.

Celestia bit her lip and gripped the bed tighter as she felt the toy dip deeper into her pussy. Though not nearly as long as some of the more masochistic toys at Luna’s disposal, the vibrator was still fairly large. More than girth, however, it had length, length, and a small secondary protrusion that seemed to latch onto Celestia’s clit.

“Oh my goodness that feels good,” Celestia muttered.

“Do you like it when it touches your little love button?” Luna teased.

Celestia shuddered. “Yes, it feels so niiice.”

Luna chuckled to herself.

The dark princess watched as her sister twisted and writhed on the bed, her body racked with waves of pleasure. A slightly firmer shove ended the slow insertion process, hilting the vibrating sex toy in Celestia’s love tunnel quite firmly. The moment it finished this process it seemed to all but attack Celestia’s clit, the small bulb hitting the exact perfect spot. The intense vibrating sensation was almost too much for Celestia, with the elder alicorn’s knees beginning to shake.

Luna drew the toy back before her sister’s legs could give out, though she didn't retract it entirely. Instead, she pulled it back just enough to make the next thrust a satisfying slurping noise. The hunk of silicone was immediately swallowed up by Celestia’s hungry sex, the toy disappearing completely. Thankfully Luna had switched to using her magic rather than her hoof so that was no matter, and she pulled it out once more.

As Celestia writhed and moaned, Luna grinned, the expression widening with time. Celestia yearned to be fucked with such intensity that she gripped tight to the toy, making Luna have to use a bit of extra power just to retrieve it. And when she did, the toy’s exit seemed to pull the lips of Celestia’s pussy back with it, as if the mare had gotten stuck to the hunk of silicone.

The appreciation for Celestia’s body continued, though Luna did alter the speed and intensity of the toy’s penetration. Slowly ratching up the tempo, Luna pounded away at her sister’s pussy, ensuring each thrust ended with the toy assaulting Celestia’s clit. This attack lasted only a second at most but it had the desired effect, prompting a fresh moan to slip past the pony’s lips.

“Oh yes, this is wonderful Luna, please don't stop!” Celestia exclaimed.

“You’re not cumming already, are you? We’ve barely even gotten started,” Luna replied.

Celestia’s body stiffened somewhat, and Luna could sense a bit of fear as well as trepidation pass over her sibling. “I apologize, but I’ve been on the edge of orgasm for nearly an entire day at this point,” Celestia stated, though her tone was almost pleading.

“If you can hold out for another two minutes I will consider allowing you to cum,” Luna offered.

“Y-yes, I’ll resist. I swear,” Celestia hastily replied.

Luna nodded to herself. “Then you had best prepare yourself, sister.”

Before Luna even finished her sentence, she started to pound away, thrusting into her sister with the same intensity as before. This time she didn't remain at that speed for long, going faster and faster, while laying a hoof on Celestia’s back. Within only thirty seconds Celestia was nearly on the verge of orgasm, and though resisting, she wouldn't be able to win.

The game was not over yet, however, so Luna backed off, easing her assault somewhat, and keeping the vibration intensity low. Deep, and slow, she kept her thrusts focused mostly on teasing the other mare’s clit as much as possible. This was just barely enough pleasure that Celestia was able to resist, though her efforts were increasingly desperate.

She bit her tongue, chewed her lip, clenched her jaw, and gripped the pillow tight enough to nearly tear it. Her muscles twitched and contorted as she pulled out every last trick she could think of. Luna saw all this and knew that at any moment she could end the mare’s futile struggles with only a few quick thrusts. She allowed her to hope, however, as she knew from experience that it only made things even more delicious in the end.

“Th-thats two!” Celestia called suddenly.

Luna blinked. “You were counting?”

“O-of course! You weren't?” Celestia replied.

“Nah,” Luna answered.

“So are you going to fuck me now?” Celestia asked.

“I suppose you’ve earned it,” Luna exclaimed.

She then in one swift motion, cranked up the intensity of the vibrator to its max setting and stuffed the thing into Celestia. One more thrust was all it took to drive Celestia right over the edge and into what she felt as though was going to be a mind-blowing orgasm.

“Yes, yes, yessss!” Celestia screamed.

The oncoming wave of pleasure was enormous, all-encompassing, and completely drowned out all other thoughts. It rose high above her, and loomed over everything, only to vanish the instant before Celestia was about to be swallowed by it. In a flash, the huge orgasm she had been close to having was gone without a trace, leaving behind only confusion.

“No, I was so close… I am so close,” Celestia whined, wiggling her backside needfully. “I can still feel it.”

“Now sister, you know better,” Luna cooed, leaning in close and rubbing a hoof down her sister’s spine. “You can only cum from the attention of a single feather.”

To punctuate her point, Luna rubbed a single one of the things across Celestia’s cheek, leaving a long line of mare juice in its wake.

“I… I forgot,” Celestia muttered.

“That much is obvious,” Luna stated, sitting back up. “Oh but would you look at the time? Don't you have court to hold in eight minutes?”

Celestia perked up, glancing at the clock. “I-I do.”

“Here, why don't you keep this little piece of me as a token from your dearest, most precious sister,” Luna purred.

Before Celestia could respond, the solar princess found a single dark blue feather planted into the middle of her mane.

“Oh and we can't have your toys just lying about,” Luna exclaimed.

The alicorn grabbed the semi-forgotten but still buzzing vibrator that had since flopped out onto the bed. With a firm grip on its end, Luna jammed the entire thing into Celestia’s pussy with a single powerful thrust. She then sealed it inside with a spell, ensuring that it couldn't fall out a second time, no matter how hard Celestia may want it to.

“C-could you at l-l-least turn it d-dooOOOown,” Celestia exclaimed, her voice rising and falling as she nearly came only for her orgasm to be magically quelled before it could complete.

“No. In fact, I am going to keep it on the max setting for the entire length of your court session today,” Luna proclaimed. “I wouldn't want that hot little cunt of yours cooling down for even a single moment.”

Celestia stood awkwardly, the pony struggling to do so while so powerful a vibration was assaulting her pussy. Once she was on all four hooves and facing Luna once more, the darker alicorn wondered if she would receive some resistance. But there was no defiance in Celestia’s eyes, no hatred, nor retribution, only pure unadulterated submission.

“Y-yes sister,” she muttered, pausing to bite down another orgasm. “That s-s-sounds satisfactory.”

Celestia’s eye twitched, and one of her hooves gave out, only for the mare to catch herself before she slipped.

“I’ll s-see you tonight, to let you-” Celestia paused, and gritted her teeth, face contorting in pleasure only to quickly shift back into a more neutral expression. “To let you take your precious toy for a ride.”

Luna smiled. “What an excellent way to put it, now off you go now.”

Celestia stepped off the bed and began her slow, and shaky walk over to the door. As she moved, she occasionally spasmed, clearly experiencing the beginnings of another orgasm. Each time these attacks grew until they were nearly overwhelming, they stopped, leaving Celestia unfulfilled once more.

Luna, however, Luna was anything but unsatisfied.