Getting your sister drunk on wonderful apple cider, fun. Dragging her to your room and letting her spend the night with your lover, even more so. Manipulating her dream so she thought she spent the time with you? Luna had to think on how delightful that made her feel. On one hoof it really was naughty, since any dream she took part in was a whole lot more real than any other. Except for the act of actually laying with her sister, Luna had partaken of the forbidden fruit with the white mare.

"Luna! Where are you, I got something for you!" The sing-song voice of Twisty sent a wonderful shiver down Luna's spine. The mare had such a mind for games and was always a delight in both the bedroom and in conversation. "There you are!" Luna had been relaxing in the garden, a sun-shade keeping the afternoon warmth from her hide. The dark, beautiful changeling queen stalked her and before Luna could offer a reply leaped on her!

The tingle of magic wrapped around the pair, any changeling that could work magic could easily build the 'look the other way' spell, and Twisty was certainly no slouch with spells. "Twisty what are you do-oooooo…" Luna's query cut off when something long and thick was pushed into her, it felt heavenly and she fluttered her eyes. She saw one of the gardeners, not all that far away, continuing to go about their job. The princess of the night bucked up and back, feeling more of the strangely smooth length penetrate her. "This isn't the normal you." Her voice was a little strained, she felt very full and far too naughty.

"It's not, this is something special." Twisty Turn drove her hips forward. "You see, when a changeling queen reaches the point where she wishes more drones, she doesn't normally just steal a second hive from another queen." The queen thrust hard, sinking herself all the way in, her tip kissing the alicorn's cervix. "She breeds them."

Luna felt something swell out her entrance, her body flushing hotter with pleasure. The swelling in the long, smooth shaft made her passage ache with the size of it and she fought it with her muscles before even her own body gave way and she felt the bulge travel inwards. "She finds a lusty mare." The words were like smoke to Luna, her mind buzzing with how good it felt. She didn't make the connection, yet, but as the swelling worked deeper and deeper, she felt a second one start to push at her mound. "And she fills them with eggs until they can't walk."

Twisty felt exultant, Celestia had told her Luna would be okay with this, that the mare really wanted to carry young. She had been tickled with delight at the idea and now, as her first egg parted and pushed Luna's cervix wide, she began to fill her. The second egg was halfway down the long ovipositor, the feel of the shape swelling not only her sensitive tube but also Luna's passage excited Twisty beyond belief. She had been arranging for a few mares to be under contract to carry her eggs, but this would be much better.

Luna's eyes flared wide, she wanted to brace, she wanted to tell the queen riding her, stuffing her… her thoughts blanked as the third egg spread her entrance, pushing her to an orgasm. It felt so good she started to drool onto the grass while Twisty worked more and more of the orbs into her. She lost count of both eggs and orgasms, she honestly didn't care about the uncomfortable swelling, so long as she kept getting more eggs.

Twisty was not going to have a hope of leaving Luna unable to move, but she knew for a fact the mare would be looking pregnant for a while. She relaxed and worked the twentieth orb down in to her dark lover, their body's almost indistinguishable by color. "Your sister told me to tell you, when I had stuffed you nice and full, that you are welcome and she hopes you have a sweet dream." Twisty started to slowly pull back, trying to retract her ovipositor, she got halfway out with it when Luna's insides clamped down hard, making her exclaim.

"Thee may… thee may have filled us with thy young, but thee haven't seeded us." Luna looked back over her shoulder, a challenge to the changeling that had brought her, quite literally, to her knees. "Get thine self back in."

The changeling's eyes widened, she couldn't turn down such a request, not from Luna. Green fire flooded her form, making a few minor changes. Under her the alicorn moaned loudly as the relatively thin ovipositor changed, grew hot a moment and then was a much thicker shaft that any stallion would be proud of.

As the shaft drove home, Luna pushed back, rolling her eyes and closing them as the dance was rejoined. She heaved upwards, lifting her swollen belly and the queen both and giving Twisty the perfect angle to screw her silly.

Celestia was watching, seated comfortably on a balcony of the castle, using Luna's favorite telescope. She watched through the device as the two rutted and bred. "Mmm, I can't wait for her next ploy."

Twisty rubbed her hooves together. Both mares were having a good time, playing tricks on each other, and quite often they required a naughty changeling queen. Her brood swelled out Luna's belly delightfully, and although she had started to begin the process to grow more herself she hadn't been invited to fill the princess of the day… yet.

She prepared the tea, adding the extra ingredient that Luna had provided. She contemplated adding it to both cups but, she knew her task was to be the mare in the middle and not play both sides. She thought even of drinking it herself, but resisted.

"Tea!" Twisty trotted into the solarium, both alicorns relaxing and enjoying a disaster-free afternoon. "This is the special brew we just got in from Saddle Arabia, I heard that you had ordered it and thought you would want the first cup, my mare."

Celestia had given up correcting the changeling. She used such possessive words but carried through none of the social actions that would go with them, it was honestly refreshing. And if it brought the mare a little more standing, among the nobles of the city, well, all the better. Twisty was a good mare, a dedicated lover and a great ally. "Thank you." She carefully levitated the cup offered over, holding back even from the slice of cheesecake she was working through.

It wasn't until she sipped it, savoring the rich flavor that she noticed something. Luna was looking right at her, the biggest grin ever plastered on her snout.

"Sister, what did you just have Twisty slip me?" Celestia gave a sigh and decided to finish the cup, it really was a good brew and she hated to waste it. It started at that delicious taste again, but by the time she got to the bottom of the cup it tasted decidedly of… well, stallion. "Really? Tainting the tea? Lulu, that was a lovely tea and… what was in it?"

Luna watched as Celestia's gaze focused on the cup and into the bottom of it. "Oh? A little something I found. It modifies the taste buds for… about a week. It is rather specific. Everything will taste like a stallion's issue. Everything." Luna's grin of success turned a little toward a frown when she saw the smile on her sister's snout. "Everything, even your precious cakes! And, the best bit is, actual seed will taste like the most heavenly thing ever, it will be unbearably delicious… and extend the effects for another week!" Luna fell off her banana lounge, cackling.

"Well sister, I must say, you got me." Celestia sounded not a bit put out. Luna watched as the alabaster mare floated another cup of tea over and sipped it, her lips curling into a smile. "I must say, this is going to be delightful."

Celestia didn't mind the taste, it made her feel a little naughty but it was something she could deal with. She looked at Twisty and right then decided it was also something she could live with for a fortnight, she wanted to explore this 'curse'.

Luna was fuming, her sister actually seemed to like the cursed tea and worse, she had asked Twisty for the name of the zebra she had gotten it from! She pounded around her room, clopping each hoof down firmly on the flagstones. Surely there had to be something that would get up her sister's skirt.

"That's it…" Luna's eyes danced as she trotted from her room, heading to the royal library and the restricted section. She needed to study!

After a few days of watching her smug sister happily sip tea and eat her cake, Luna had been boiling inside, she had to get this spell just right and the enchantment strong enough that even her Tia couldn't stop it. She wove and worked the spells, combining them and matching them up until they were aligned enough. She brought out the wooden snake she had carved and laid the enchantment onto it. The thing hissed and animated, slithering around until Luna, with a giggle, managed to get the command out to put it back into a dormant state. It was perfect!

The right time, was just before day-court. The right place was the loose pile of cushions Celestia parked the royal plot on while she took court.

Luna sat on the little couch to one side, watching as Celestia strode gracefully over and settled down on the cushions. Court began and the first ponies brought forth their claims and arguments, letting the wisest mind in the land decide for them, what was to be done.

Celestia was just done with the third grievance when she felt movement under her rump. A glance at her sister confirmed it, there was a game ahoof here. The movement continued until the alicorn felt the poke, something flicking against her mound, like the tiniest of touches. Well, tickling wouldn't be enough to distract her from her duty. But the head of something thick, pushing into her sure did. Celestia's eyes flew open and she turned to her bailiff. "Court is adjourned, twenty minute b-b-break…"

"Court is adjourned!" The stallion banged the long pole he had at his side, a signal to everypony that they needed to leave.

The white alicorn waited right until the doors closed, the last pony having left before turning to Luna. "What is this?"

Luna was practically bouncing in place, she saw her sister's hips undulate, the thick snake working itself deeper and deeper. "A mix of things, you like it? You should probably stay there..." Luna licked her lips, she watched as Tia was momentarily disabled, her eyes going wide and her body trembling.

"What is it doing?!" Celestia managed to break from the trembling orgasm that had rushed on her suddenly, she tried to stand again and once more her body locked up, her muscles clamping the big intruder.

"Well, walk over here, my sister, and I will tell you." Luna watched as another orgasm spiked the mare and she shot to her hooves. "Have you worked it out yet?"

Celestia was walking, her hips stiff and trying to sway as little as possible. "I… is it… what did you do Lulu?" She stopped a moment and the orgasm rushed onto her again, causing her legs to tremble and move her forward. The orgasm receded.

"Well, it is a mix of spells. A wonderful little one for training a pet, another for a naughty sex toy and the last, the best, one that directly works on a pony's nervous system." Luna reached out a hoof and tickled Celestia's chin.

Celestia panted a little, feeling at least an easing of the pressure inside her. "So… it is a training toy?" Luna's nod made Celestia frown. "Lulu, it is wonderful, really, but I need to continue court."

"And you will, walk back over to your little spot, wait for court to resume. You can spend your day helping your ponies find the right course to action but, Tia dear, after court you will go to Twisty and you will beg her, plead with her, to fill you up with her eggs." Luna booped her sister on the nose.

Celestia's reply was cut off as she was thrown into an orgasm, the magical toy detecting her straying from her commands and applying 'punishment'. She fought it, she had to. She locked her limbs and reached down to herself with her magic. Celestia tried to grip the toy with her telekinetic grip, she tried to yank it free but the new rush of pleasure stole all control from her and she was taught something her sister didn't mention, she couldn't take it out herself.

"Lulu, I promise you," Celestia got up to shaky hooves and turned, starting to walk back to the pile of cushions, "no, I assure you, I will get you back for this."

Any hope that her words would send fear or despair into her sister were lost when Celestia whimpered just after them. She wouldn't admit it, but she liked her sister's sense of humor. A lot.

Author's Note

Oh dear, a prank war. What will be next?

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