Avalanche from a Flurry

Twilight looked back to Rumble and solemnly lied, "I now have a dildo up my butt. Note that I can't acknowledge further acts done to my body, as I'm now petrified."

Starlight, the director, nodded: the simulation spell had marked that Twilight had made that declaration.

Twilight addressed the room. "All right, I have to run over to Canterlot to cover something for Luna. See you all later. Let me know how it goes! Don't forget to do the hoof motions!"

Twilight ducked out the door, sealed it, and jogged to the portal room. Celestia and Luna hadn't used the Canterlot portal to get here, thankfully. She stepped through and headed to the throne room.

"Hello, Plumbers' Guild representatives. I am so very, very sorry, but it has become urgent that I save princess Skyla right now, and princesses Celestia and Luna are required to provide spell support. I assume you know what I'm talking about? Right. I will be able to help you with your issue later tonight if all goes well."

~~~~

Thunderlane looked at the 50%-scale fuckable Scootaloo plushy that Rarity had made and set it down next to Rumble. "I, uh, guess I can use this on you."

Starlight coughed. "You're going to have to be more specific. That didn't go through."

"I, uh, take this doll and, uh, put it around his dick and move it up and down until he tells me to stop, which is supposed to be just short of his coming?"

Starlight frowned. "'Please wait'. What for? Did it go through or not? I get that this version of the lock is supposed to be more like the real one, but does that actually have… okay, there we go. Sheesh. Rumble, you're up next."

Rumble faced Scootaloo. "I'm going to rub my wings across your body, everywhere, building, teasing…"

Starlight coughed harder. "Rumble, we're going to be here all night if you take as long to say it as you would to do it."

"Sorry, I'm just… really feeling it. But if you insist… Scootaloo, I'm giving you a hoof and wing job."

"Scootaloo?"

Scootaloo blushed as she stammered out, "Rainbow Dash! I'm…" She trailed off, staring into Rainbow Dash's splayed out privates. Not so private at the moment.

Dash winked. "Speechless before my awesomeness?"

Scootaloo nodded.

Dash prompted, "Aaand you are…"

"Gg. Gi…"

Starlight coughed so hard it actually hurt her throat a little. "Rainbow, put your legs together? We want to avoid doing things in rehearsal so we get the first time bonus in the actual event. So quit teasing."

~~~~

Twilight stood in the square in front of the palace, black board with diagrams of genes. A round region had been cleared of snow and warmed to a comfortable temperature, attracting attention and passers-by. Her horn was aglow. On a projection screen was a greatly magnified live view of what she was doing in vitro right in front of them.

"So, there are my parents' cells splitting. And because of the special spell I cast earlier, it's splitting the same way it did when it made me. When it's done, the two on the left - each of them will have one of my two 'bookshelves' of 'instruction books'. If you put them together, you'd get a cell that's just like my cells." She took a sip of water. "This'll take a few minutes, so it's a good time for some questions."

A colt raised a hoof, and she called on him. "What about the ones on the right?"

"Each of them has the half of the instruction book that that parent didn't give me. And hold on to that thought."

A filly raised her hoof. "Why are you a ball and a snake?"

Twilight blinked. Does nopony listen?. She held back a frown before she remembered seeing the filly arrive after the start. This is the drawback of making it free to walk in at any time. "It's a great time for a review!"

As she repeated herself, Twilight checked the progress of the orgy team…

~~~~

Thunderlane faced Tempest Shadow's rear end and gulped as the other participants read out their actions. Something had gone a little awry with the spell and it required them to go around the circle twice before it would register that they were actually doing it all at the same time, not just one after another. He saw Fluttershy put her forehooves together, raise them up, then spread them apart and lower them, and remembered to repeat the gesture himself.

It was something to break up the tension. Thunderlane could sense that the party really wanted to start, somehow. A definite feeling thrummed through the air. Thunderlane briefly made eye contact with the other guests - those not actually affected by the magic at all: Button Mash, who turned back to Sweetie Belle's flicking tail; Applejack, who was momentarily ignoring Twilight Velvet's silent gestures indicating she should keep staring at Night Light's penis in front of her; and Maud, who looked up from Boulder's harem, as if she'd sensed something pass by. Or maybe it was the way Pinkie was breathing on her back side.

He resumed listening to the proceedings.

Rainbow Dash announced, "I'm still eating you out, Luna. And you're coming, right?"

Luna glanced back at her and deadpanned, "Oh yes, I'm coming so hard. Sister, my tongue is still in you, as it never ever has been before and never will be again, so you'd better enjoy it while it lasts."

Starlight interjected, "Such an over the top denial, I begin to doubt it! Also, you ran those two together, so it might not take. Hold on… proceed."

Luna and Celestia shared a look and a roll of eyes; Celestia declared, "The heavens shake with my climax. It would be unsafe for the world for us to repeat such a wonderful night. And my dear little pony, Scootaloo. I believe my tender ministrations to your most private place may have achieved results?"

After awaiting a nod from Starlight, Scoots replied, "Yup. I came."

Starlight Glimmer sighed. "Okay, that's the third circle complete. Now, everypony get in position for the fourth circle…"

~~~~

"Okay, but how do mommies and daddies do it?"

The colt's mother shushed him. "She's a princess! You can't badger her like that!"

Twilight replied, "When I'm on the throne or otherwise acting as a princess, you are correct. Right now, I am a teacher, and asking the teacher questions is fine. There are some physical differences between mares and stallions. Trill, that wasn't a question, and I think we all know what they are. Thank you. The mares keep the eggs up in their parts, and the stallion keep the sperm up in theirs. The sperm, as you may recall, can swim a short distance. When the stallion's body releases the sperm, the stallion just gets it as close as it can to the egg and the sperm swim the rest of the way. Yes, Trill?"

Quiver Trill asked, "Is on the outside of the belly far enough you can't? My mommy always makes her boyfriends go on her belly."

Even in her state, Twilight blushed. She really hadn't expected a filly to be talking like that. "The belly is easily far enough, but if he was… substantially closer immediately before, that could be a problem. Some overeager little swimmers can get going well before the crowd. So I'd like to speak with your mommy afterwards about how to be more careful." She used a transparently fake smile on the parents around the edge, communicating to them that she would take care of the other aspects that were concerning. Several nodded, satisfied. Those who'd seen this as totally inappropriate had already left, and the rest might have been affected by Skyla.

"All right! So, we have the left set of cells. Who's that like? Yes, that's like me. Is it actually me? That's correct - no, it's not me. If we let this one grow, it would be like my identical twin - a clone. A funny thing is, this spell was originally supposed to make duplicates of powerful wizards like Starswirl the Bearded. But it didn't work well, because eggs carry most of the magic, and they need to be real. So afterwards, I'm going to just bring it in and put it with its twins. That is, I'll put it in my body and just make it part of me. It'll fit right in. Now, let's focus on the one on the right. Who is this? Chip?"

"It's your brother!"

"Is this one on the right a twin of my brother Shining Armor, like the one on the left is a twin of me?"

"No, it's a new brother!"

"Why do you say that?"

"Uuuh. Well, I thought it would be…"

"Oh, you were totally right, but can you explain how you knew it?"

~~~~

Thunderlane looked down at Scootaloo, who was lying flat on the ground under him, head propped on a forehoof. Night Light was arguing with Starlight Glimmer. "I don't think any of you are going to come from anal stimulation, so I'm going to need to come to make this work. And I need to do it three times in a row? How long are we going to need to stay in this formation?"

Starlight repeated, "We can take a break in between each of these last three frames. How long is your refractory period?"

"I'm not as young as I used to be."

Twilight Velvet offered from in between Applejack and Apple Bloom, "An hour would be enough."

"Sure, the first time of the night, but the fourth?"

Starlight assured him, "The break can be five hours long. Hay, we could break and come back the next day if we need to, though that would be cutting it fine before we begin facing penalties."

~~~~

"So, since it was chosen as everything that didn't go in to me, this 'brother' is only as related to me as my parents are related to each other, which is, not at all. If you were to flip the bottom and top rows of this…"

She applied a little magic to the chalk board and it swapped them. "There's only one little difference. What's that? Toasty?"

Milk Toast said, "You took your whole left bookshelf and gave it to your dad, and then he shuffled it into his bookshelves, but that's backwards. You're supposed to shuffle and then give it!"

Twilight nodded happily. "Yes! If we were doing it right, it would be like this." She drew the alternate pattern in a different color. "I'd be having a foal with this 'other stallion', and I'd do the shuffling and he'd do the shuffling… and with a little luck, we could end up with our parents. In fact, if we had a foal, it would be as if it was a brother or sister to my mother, and to my father. Even though they aren't at all brother and sister to each other. Yes, Trill?"

"I have two half brothers and half sister. Is this like that, but harder?"

"No, this foal would be like a full brother or sister with each of my parents. And I really do need to talk with your mother afterward. Not immediately… can you ask her to drop by the palace at or after ten? Thank you." Twilight glanced to one of her guards, who had quickly taken down a note, presumably to admit her. "Anyway, how about we do that and see how it works out?"

Of course, she wasn't just starting now - she already had one of his two cells undergoing meiosis at a magically accelerated pace. She surreptitiously took the other cell out of the magnifying frame, then picked up her glass of water. Quickly passing the cell up through the place her two auras conjoined, she put it into her cup of water. Then she took a drink.

~~~

Thunderlane looked down into Rarity's baby blue eyes as she said, "You were my first crush, did you know that, Thunderlane?"

He chuckled awkwardly. "I guess you didn't imagine us like this."

"I was too young to imagine us at all. I just really liked you. So anyway, time to finish what your brother started."

"Right. Uh, to be clear for the benefit of the spell, I'm having sex with Rarity now. Next?"

Starlight and Starswirl suddenly gasped. Starlight shouted, "Now what?" She growled, "Twilight…"

Starswirl vanished in a flash of light, only to reappear a moment later. "The room's ward against teleportation is keeping me in? What's she up to?"

Starlight groused, "Twilight's gone off and deactivated the lock manually. Now how are we supposed to finish the… what… what?"

A dark gray swirl of ghostly energy coalesced around them, gathered together, and shot out of the window, making a hard right turn as if to head across Ponyville towards Canterlot.

Rainbow Dash raised a hoof. "Should I, uh, chase that?"

~~~~

Ten seconds earlier, Twilight Sparkle took the zygote made from one of her eggs and her unnamed, unrelated brother's female sperm, and attached it to her uterine wall. It wasn't a proper attachment yet, but close enough for the lock.

Five points for impregnation, times four for brother, times five for maximum age difference, times two or three for around a hundred witnesses, times two for lack of consent from my partner, times four for his death plus cannibalism since I drank all of him that wasn't turned into sperm, equals at least sixteen hundred. After squaring, well over a million. Come on, lock… Just to be ready, she manually released the practice lock. She pulled out a pre-written letter to Spike and prepared to send it.

The original lock's abstract gears turned and released. A swirl of bright light that Twilight really hoped was Skyla coalesced around Twilight and settled in her belly. Even before she was in, Twilight started casting again, and once the light was settled in her, she finished a new lock on the remaining spirit, that could be unlocked by a second recitation of the orgy, but in between the first two acts, somepony would have to recite the first ten digits of e.

To her great shock, this new lock grabbed onto nothing and failed.

"Oh ffffiddlesticks."

~~~~

Sparkler got a headache.