It was another fine day in Ponyville. The Sun was beaming down from above, dispensing its blessed warmth to anypony who wished to receive. The plants happily photosynthesised, building up glucose for own use or attracting other creatures that'd spread their seeds. Princess Celestia had been generous with day time for months, which Princess Luna more than compensated by drawing the most beautiful night sky to guide tired ponies home as soon as dusk set. The princesses were known to compete for who could make their subjects enjoy their respective times more. Princess Celestia had always had a bit of an advantage, though she had begun to put in a bit less effort, never forgetting what had happened the last time Luna had failed to win their contest for the day for the hundredth time in a row.

Just as willing as her sister to never let that happen again, Princess Luna was highly focused in creating an even more awesome design in her royal quarters while she had time. Well, actually, she was sleeping through the day like a student pony again, as usual, though some were the most creative in their dreams, and she certainly was one of them. At least she loved to claim that to justify fourteen hours of sleep each day.

Just outside of town, somepony stood and stared out into the scenery, drifting off into sentimentality again. A thousand apples glistened in the Sun, already filled to the brim with the products of their trees' reactions with the sun rays' energy. Canterlot was as white as the snow on top of the mountain it was built on again, both of them shimmering as the Sun shone down on them.

Dark Demon King Ravenblood Nightblade sighed and set off. That day, he would finally get to say the words that burned within him, begging to be released into Applesack's direction. However, what happened afterwards is unknown, as this is not his story.

Of all ponies in Ponyville, there was one that was unable to enjoy the day, plus another one that had chosen to be his partner in that time. Nopony could see what was going on inside the library, as all the blinds were pulled down. Even so, both unicorns inside found themselves in a great heat.

"Midnight... I need you," Dusk Shine growled, closing in on her.

"Again already?" she asked with a slight hint of shock in her voice, though it was only feigned, a fact they both knew. "Ugh, fine. Let's go upstairs so nopony will walk in..." She attempted to lead him up the stairs, but apparently, his desire was too big to ignore any longer. As soon as she had turned her flank to him to move away, he pounced her. Midnight didn't quite want it to be like that, but she didn't resist.

No matter how often they did it and how well she prepared her mind, the feelings that came when he first entered her temporarily overwhelmed Midnight every time. She would've liked to take it while standing, but Dusk Shine's weight pressing down on her together with the way he made her head spin seconds into it caused her legs to give in and allow her to drop to the floor. She didn't feel weak, though. She was probably taking it better than the average pony. As much as she hated to admit it, she even took pleasure from this act, perhaps more than her mate did.

He started moving around, nibbling on her neck. Theoretically, he could just remain dug into her while her body did the rest, but he seemed to prefer using this method. As far as they knew, it was the common way, though naturally, gathering data for or against was a bit tricky.  

After some time with a rhythm of careful wiggling, he picked up the pace, removing himself from her completely before rapidly going back in again, deeper than before, and remaining in that position for a bit before repeating the cycle. Though she had surpassed the initial shock, Midnight's head was now beginning to spin from the act itself. She prayed that he would be done soon.

Dusk Shine was an attractive pony. There were probably dozens of mares in Ponyville who would help him in any way, even including intercourse. He didn't use any of those, however, for multiple reasons. First of all, he and Midnight were eternally in love and it was some kind of logical conclusion that she would do that service for him. Besides, since her special talent was medical care, Midnight had been born with a natural immunity against most diseases. Thus, she was one of the very few who didn't have to be afraid of contradicting his disease.

He was starting to tire out. Midnight could feel him starting to pull out again before slamming into the same spot all the way until the base. Sometimes, he would change his target for the grand finale. Not this time, it seemed. Midnight didn't necessarily want it to end as soon as possible, but she knew they couldn't be at it infinitely. Besides, the climax was always the best of all, especially since it hit her unprepared most of the time.

He'd love to drain her of all fluid inside of her, but he knew he couldn't do that. In fact, he even left some of his own liquid as a parting gift each time. This one wouldn't be an exception. She gasped as she felt it coming inside of her, his tepid love filling up her begging cavities. Perhaps other ponies would prefer it hot, but Midnight couldn't say she minded it. Not to mention that they couldn't increase his artificially lowered body temperature. It was all the disease. Just when he withdrew, when she felt cool air accessing the gap in her skin, Midnight blacked out, unable to take everything combined.

She woke up slowly, taking in her surroundings one sensory system at a time. First, there was the gentle warmth of day on her skin, partially replaced by a soft feeling on her side. Then, she heard the birds' songs outside, muffled through the windows, combined with an occasional clop from her lover's hooves. Finally, she opened her eyes, momentarily blinded as there had been no light falling onto them for what, all she knew, could have been anything between minutes and hours. Dusk, who had gone to research after laying Midnight onto the couch, noticed she was awake and came over. She remembered what had happened and reached around for her neck, though all she couldn't find the two pinpricks she'd been looking for. Putting two and two together, Midnight smiled at him as he approached.

"You've become good at it. Maybe even better than me," she said.

He sat down next to her, levitating a tray with a modest hay sandwich with him as he did so. "Yeah," he began in the most charming, most smooth voice Midnight could imagine, "I've had a pretty good teacher, though."

"The only possible, too. Didn't we look for it earlier only to find that I'm the only one who knows Mend?"

He shook his incredibly handsome mane. "Ah, please, would you kindly just take it when I'm being romantic."

Midnight giggled. "Just messing with you. How long until the cure takes effect again? On a related note, foods. Gimme!" She took the sandwich he had set down in the meantime into her own magic and took an initial bite.

"Go ahead, you'll need nutrients to restore the blood I took from you. Princess Celestia says I'll be back to normal in a month. Until then, I guess I gotta feed once in a while. Can't say I don't like these babies." He fluttered the wings he'd acquired through the infection he'd received when researching vampirs. "Seriously though, I'm glad you're here to do this for me."

"All for my Shinies. Erm, Dusk, one thing..."

"Hm?" Midnight had to give him credit for something, if nothing else. He always listened to her opinion and concerns.

"... promise me you'll marry me one day."

"As soon as you're ready, not one day before, not one day after. Promised."

Midnight laid back, putting her head on Dusk's lap as she finished up her meal. He quickly began to stroke her mane with hooves oh-so caring and wonderful. "That's all I need. I love you."

"Of course. I'll always be there for you as you are for me."

"Ngh, kiss me, you little romantic!"

He bent down while she brought herself up, but before they could make contact, the door burst open. The equine figure intruding their privacy began talking before either of them could react, "Good day, Changeling Department for Interrupting Romantic Moments, branch C, Queen Chrysalis speaking. We've noticed there's an excess of love here, Dusk Shine. So I've come to make you, dear, a Changeling." She charged up her magic and fired a bolt of energy at Dusk before he had even fully understood her words since she'd been speaking so quickly. Midnight would've loved to absorb the blast for him, but her instincts forced her to duck away in a split-second decision and watch as it hit him right in the chest.

"Why did you do that?" Midnight asked in the direction of the villain while her lover was visibly confused, trying to sort out what had just happened.

Queen Chrysalis laughed. "BECAUSE I CAN!" She then flew off again, leaving the two alone. Dusk seemed to recover, shaking his head. There was no visible change to him.

"Darling, are you alright?"

"uh, yeah, sure I am." He then engulfed himself in a magenta flame, revealing the form of a regular Changeling. "Well, this is cool and all, but I think we should work on getting that off."

"Actually," Midnight said with an unsure voice. She didn't quite find the right words, so she stopped talking again, her eyes darting across the room.

"What is it? You know you can tell me anything."

"Well, I've been fantasising for some time... erm, it'd include me and another pony in the shape of me, but with your kind of equipment, so..."

His eyes fell into a smug, but understanding look as he got her point. "If that's your wish, then..." he shapeshifted into Midnight.

And then Midnight had sex with Midnight.

THE END.