Nox

It looked to be another amazing night in Ponyville. The Sun and any clouds that could have clouded the sky had made room to allow the Moon as well as its sideral companions complete dominance over the dark plane. Anypony who had seen them out in that night had to agree that they deserved their individual spots in the sky. Princess Luna outdid herself night after night in designing a picture that would awe the tired ponies as it guided them home where they could claim their well-deserved rest. Though, in this moment, there was somepony who simply couldn't drift off into the land of eternal happiness no matter how hard she tried. A faint light coming from the top window of the library was the only indication towards the outside of what was going on.

Twilight Sparkle sighed when she looked up to the clock and saw how late it had gotten again. Something just wouldn't let her sleep this night. She flipped over onto her left side and mumbled, "What is it with me today? Guess I might as well wait for her." She didn't have to wait long as only minutes later, she heard the sound of the door behind her, accompanied by tired hooves slowly clopping towards the bed, too exhausted to mask her movements. Despite all of this, her beloved slipped in effortlessly, lying flat on her back and releasing a drawn out sigh. "Long day again?"

"Sadly, yes," Rarity whispered. "I spent hours on a single customer, and she still wasn't satisfied." She turned onto her side and wrapped her forelegs around Twilight from behind.

The unicorn rolled around to return the embrace, "Eek! You're cold! Well, you see, it's just about the season for that, as fashion shifts in Canterlot, everypony wants to be first to appear in it, even if they don't know what it is yet..."

"Sparky, would you kindly do me a favor and spare me at this time of the night? I'm not against getting a piece of you, just not of your mind."

"Miss Rarity, are you trying to seduce me?" Twilight chuckled.

"Maybe I am," she said before putting a quick kiss on Twilight's nose.

"That's it? Come on, you gotta do better than that."

Without a moment of further hesitation, the two came together into the greatest kiss of known history. Rarity had meant for it to be intimate, yes, but also brief, so she dedicated to it only after Twilight pulled her back in when she had tried to retreat and then proceeded to tickle on her lips with her tongue. She was never going to turn down a challenge, neither in fashion nor in love. Thus, she gladly picked it up and pushed straight into Rarity's mouth without even giving her a chance to act first. She did relent eventually, allowing her love to take the offensive and force her tongue back where it belonged. They stood like that for several more seconds, fighting an intense battle for control over their cavities without either wanting to win while the hot air that came out of either's nostrils could not possibly compare to the heat that was already present on both of their faces

At long last, they disconnected, though there remained a thin strand of saliva between them. They paused for a moment, lost in each other's eyes, until Rarity flopped backwards across the bed invitingly and said, "Ready to take it onwards? I know I am."

"Wh- you mean, seriously and all?" Twilight stammered. A swish of Rarity's purple tail was all that answered her, though it also said more than any words could. She was plainly overwhelmed by the sight. It wasn't technically anything new to her, of course, and she had even seen this particular instance of it before, but this time was different. Now that she knew it was finally about to happen, Twilight Sparkle was positively overwhelmed by the sight of her marefriend's deepest treasure. With a slight quiver, a drop of liquid clearer than anything she had ever seen emerged from the depths. As she watched it slowly run down towards Rarity's tail, Twilight finally awoke from her petrification, feeling the strong desire to not let that drop go to waste. Unfortunately, it was lost before Twilight could dive in, though she made sure that any further nectar would not meet the same fate, as big a task as that proved to be. With every one of her sloppy, unpracticed licks, Rarity moaned just that much higher in pitch and seemed to excrete even more of her sweet juice than before

For several minutes, they remained in that position with Rarity having both of her front hooves on Twilight's head, desperately trying to urge her to go harder and faster. Meanwhile, Twilight was focused on learning all she could about her marefriend's preferences, eagerly listening for her reactions as she licked up and down and left and right. Rarity apparently reacted the same way to everything though, so she instead focused her efforts on going past the surface, which excited the lying pony significantly more, judging by the sounds Sparkle had not expected her to be capable of producing. Thus, she did her best to reach as much of Rarity's insides as possible. The effect seemed to diminish over time, though, as her friend became increasingly quiet the harder she tried. Nevertheless, she would keep going until Rarity told her otherwise.

A few minutes later, it became clear to Twilight exactly why her marefriend had been so silent when she suddenly cramped up and soaked Twilight's nose in even more liquid. Somewhat startled, she fumbled backwards and watched as Rarity's body spasmed in seemingly random directions for a few seconds after she had met her peak. After that, though it could also have been eternity from Rarity's viewpoint, she finally calmed down and sat upright to look at Twilight Sparkle. She then wiped off some of her remaining juice, gave a slight chuckle at the amount of it there was and said, "Yes, maybe I should have warned you. Sorry, I guess. You did well, though." Upon seeing the lavender unicorn's neutral reaction, she regained at least some seriousness of her own and said, "Turn around.“

"Wh- I don't..." Twilight tried to object, but she was helpless against Rarity's secret technique for silencing ponies around her which the unpracticed may refer to as oversounding them.

"I know how you're feeling, and I'm going to help you with that itch. Over here, next to me." Reluctantly, she obeyed Rarity's orders and dropped down onto the edge of the bed. Seconds later, she already regret her decision after Rarity had struck her with surgical precision, throwing her flat on her back and pinning her in that position, allowing free access to her already eager mare parts. While one of her hooves had already found its way where it belonged, leaving Twilight gasping and meeping into a balled up portion of the covers, Rarity didn't leave it at that. In addition to caressing the obvious, she bent down to whisper certain things into and nibble on Twilight's ear. "Feels good, doesn't it?" she taunted.

Twilight was beyond coherent thought. All she could focus on between the stars that overwhelmed her was submitting herself fully to the hoof that so gently massaged her burning lips. "More... harder..." she mumbled.

"Oh? You want it? Like this?" Rarity pulled her hoof up from the very bottom with extra pressure, enticing a little shriek out of Twilight. "Oooh, I see. Y'know, let me try something. Does this also feel good?" she, very slowly at first, licked Twilight's horn from the base to the tip, went back down, followed its natural ripples, and flicked her tongue left and right on the way.

Twilight reached new heights she had not even been able to imagine. Perhaps horns weren't a sensitive zone, but she couldn't care less about whether she just imagined the pleasure that now intoxicated her mind from both directions, running up through her spine and down from her forehead. Even if she would've wanted to say anything, she couldn't. Sparks shot from the tip of her horn as she felt a vaguely familiar feeling approaching, though it was already a thousand times stronger than in any of her sessions alone

Reading all of Twilight's expressions like a foals' book, Rarity quickened her pace even more, rubbing ever faster and harder. She obviously wasn't big on pleasing shafts, but Twilight wasn't shy to express her approval when the white mare fully enveloped her horn in her mouth and began to move up and down. It went in without effort, which sported Rarity to go as fast as she could possibly manage.

Unfortunately, she didn't have fun for long, as Twilight finally had to abandon all resistance not too many seconds after that and gave in to the tsunami of electricity that ran down from her head and up from her hip, meeting halfway, then going back in both directions with the combined strength of both impulses. It blocked out all other sensations, stunned her, made her blind and deaf, forcing Twilight into a void where there was only the feeling of her pulsating love organs finally being satisfied and soaking the invading hoof in liquid. There was something else as well, but she couldn't identify until her first proper peak had worn off after a good ten seconds of just slightly twitching and revelling in the sensations. When she reopened her eyes and looked up into Rarity's face, she discovered that she had painted her friend's tongue green.

"Well, about that. You're... tasty. But would you kindly warn me next time? Ahead of time, maybe?" Her stern face faded into a smile, unable to remain anything but loving and tender with Twilight for more than a minute at a time, and she bent down for a passionate kiss. This time, she could swear there was something else in it, an unbeatable sweetness. She wondered what could be its cause until she took a tentative lick from what her marefriend had left on her hoof, then smiled and dove down yet again to share with Twilight the rest of her nectar. "Love you, my little smarty.“

For the next few minutes, they simply laid there embraced in each other's arms, giving out no sound save for the occasional hushed confession of love. Soon after though, sleep overtook them both, finally sending them to rest into an even brighter land.