Avalanche from a Flurry

Spike felt a letter coming, and jerked his head up and clear so he wouldn't singe Fluttershy's tail. Twilight's letter appeared in a familiar flash. Starlight snatched it out of the air.

She read out loud, "I freed Skyla myself while you were… distracting the second ghost? There's a second ghost? Anyway. Please have a real orgy right away and get somepony pregnant, preferably incestuous, but it doesn't need to be highly organized. The other ghost needs to be embodied too. It isn't locked, but you still need to draw it in."

Everypony in the orgy room stared at each other for a few seconds.

Then Celestia coughed and declared a largely-shared sentiment in the room. "This no longer seems like it ought to have seemed to be such a good idea."

Starswirl pointed out, "It was a good idea. Miss Sparkle seems to have pre-empted us, though. I suspect that smoke was the spirit being drawn off to her in Canterlot. Hopefully, she has warded herself against it in time to keep it separate?"

Celestia clarified, "Regardless of the actual value of the strategy, actually doing things with you no longer seems silly and fun, but very unappealing."

Starswirl's eyes widened. "But why would removing Skyla make you less interested… unless she was the one who was perverted and the other is ordinary? We have no clues what to do to draw that spirit in."

Starlight added, "There is a whole raft of possibilities, yeah. But, Twilight seems to know what was going on better than we do and she told us to have an orgy. So, uh. Who's feeling up to doing something?"

Applejack raised a hoof. "I'm not excited - I haven't been excited by any of this yet, but this needs to be done to save somepony, so I'll do it! Same reasons as before!" She looked around. Maud joined her.

Rainbow Dash and Button Mash hesitantly raised hooves, and then Starswirl. Thunderlane kept his eyes on Fluttershy. She looked back at him, paralyzed. Everypony was very quiet, stunned, introspective.

Rarity wriggled out from under Thunderlane, diverting his attention. He stepped away from her, and went to Fluttershy. He softly asked, "What's going on? What do you feel?"

"I feel… drained. But also, normal. I… don't think I'm going to get those thoughts anymore."

"That's nice, but there's still that second spirit out there."

Starswirl added, "Yes, and it is fully gathered and seeking a host. If we don't cause it to conceive as a foal, it could possess somepony already existing."

Applejack called out, "I'll do it."

Apple Bloom objected, "We already have three foals coming in the family! Well, one coming soon, but still."

Applejack roared, "We can hire a surrogate later! Haven't you been paying attention the past week? This isn't going to be an Apple, it's going to be some Crystal pony victim of Sombra, or something. We need to save 'em and whoever they would possess if we don't!"

Tempest approached. "I am very not-turned-on, but I suspect I can inseminate you anyway, if needed."

Applejack looked to Starswirl. "Will this work?"

Starswirl, however, wasn't listening. He was almost sniffing the air. "Fluttershy was correct. Something is draining you. That's why there's almost a perfect match between those who can still act and those who weren't affected by spirit to begin with. If the pull on my ward is any indication…" He held up a hoof, preparing to point.

As he was thinking, Spike burped up a second letter, and read it. "P.S. Applejack, you repel it, so stay away."

Applejack nodded. "Well, there goes that plan."

Starswirl finally pointed and declared, "… it's pulling that way. It's not moving as much anymore."

Starlight gasped. "It's found another target?"

Starswirl nodded. "I suspect the second spirit is draining out your sexual thoughts so it can feed them into somepony else. Somewhere else, somewhere outside of our control."

Now that the issue was general rather than delegated to a specialist, Celestia took command. "Guide us. I will carry you."

~~~~

Derpy wasn't sure why Sparkler had insisted on snuggling right after dinner, but that was all right. She wouldn't have that many more chances to snuggle with her little daughter before she found some stallion - or mare, Derpy supposed - and settled down on her own. Warm breathing on her neck.

Kisses on her neck. Well, that was a little different.

And Sparkler wasn't all that big, really. More like… a filly? Derpy looked down her body at her daughter, who had noticeably shrunk. Her horn was aglow as her head came to rest on Derpy's teats. Derpy looked more carefully - Sparkler hadn't shrunk that much - she had also lowered herself along Derpy's body. She looked a year or two over cutie mark age.

Oh. She figured out the foal-age spell. Good for her. If she needs a hug so much she wants to regress to childhood, I guess she can do that for a while.

Sparkler gently kissed her mother's teats, and began suckling.

Uh, all right, simulated nursing is, umm. Fine, I guess?

Derpy's mind wandered to Maple Turner. That little colt, not much over cutie mark age, with the crystallizing blood. The one who'd tearily let out his heart about what he'd never get to know. About what he'd never get to see, or do, or feel. And how she'd helped him see, and do, and feel a little portion of that. How he'd… How she'd recreated what she'd had with her father.

She was lost enough in her thoughts that she didn't particularly notice as Sparkler's suckling shifted from simulated nursing to a lover's kisses.

She became aware of what she was doing as she brought Sparkler back up her body, and rolled over so she was on top. But her continuity of consciousness was centered on her afternoons with Maple Turner, not her current evening with Sparkler. So, it wasn't too surprising when she reached down and found a penis. She stroked it and guided it into herself.

They lay there and rocked gently, eyes closed.

The door opened, and closed.

Derpy opened her eyes, and focused. "Dad…"

New Leaf froze. He'd felt he needed to come here. He'd been drawn in. But his immersion was sudden, and he had perfectly clear context. Eventually, he managed to speak. Betrayal bubbled through. "How… how long have you been doing this? How?"

Derpy frowned in confusion, then looked down at Sparkler. She realized where she was, and who she was doing. She was about to panic when another thought occurred to her. "A few minutes, and it's high time we did. You did fine by me. It was their taking you from me that made the trouble!" That sounded true, and though it left out some important things, it felt like the right thing to say.

New Leaf was stunned to hear that. Something seemed off, and he felt the air press in on him. "Sparkler? What do you feel…" He was interrupted by sharp knocks on the house's front door. "All right, we can talk over what's all right later, but how about you disentangle and we deal with whoever's here?"

Sparkler moaned, "Hurry, mama."

New Leaf scowled and tried to levitate them apart. Sparkler's horn flashed and she flung him back.

~~~~

A loud clatter and grunt of pain came from upstairs, so Celestia teleported in with Starswirl. Luna popped in a moment later with Starlight, leaving Rainbow Dash, Thunderlane, and Fluttershy to enter through the front door.

Celestia found Derpy and her sister/daughter fucking on the bed, ignoring the commotion around them.

She asked the two mages, "Do you think it's safe to separate them? They're clearly under mind control."

Starswirl observed, "Whether or not it's safe for them, it would definitely divert the ghost somewhere else, and it will be difficult to contain."

Starlight said, "If the ghost likes what I think it does, these would be its preferred parents. I think we can divert it elsewhere, but it'll want to come right back at the first chance."

While Celestia digested that, Luna added, "Additionally, I will attempt to trap it. Starswirl?"

He nodded, and they set up a glowing sphere around themselves, containing the room and a bit of space beyond.

Celestia nodded in acceptance, and pulled the sisters apart and set them down on opposite sides of the bed. A gray mist oozed out of them, and filled the space within the ball. Luna and Starswirl began to wonder if leaving themselves on the inside had been the best idea, but Celestia addressed the smoke. "Ghost. We would like you to live again. We will even provide you with parents. But we will not let you take without asking, nor may you make them agree. If you can understand us - if you have any ability to choose - let us find you some parents who agree to it. I am sure we can."

The smoke finished pouring out of Sparkler, who shook her head. "What?"

Celestia softly explained, "This smoke is a ghost who possessed you to try to be reborn into a foal."

Sparkler looked down at her penis and mildly panicked. Derpy just lay back spread-eagled and blinked.

Sparkler glanced at her mother. "But why us? Why go to the trouble of…" She looked to her father. "Oh no."

Starlight finally noticed New Leaf, and quickly rushed over and cast a diagnostic spell. "Oh good, it's not too bad."

New Leaf stirred and grunted, then opened his eyes. "Hey. What… What the buck is going on here?"

Starlight reiterated, "Ancient ghost created by Sombra wants to be reborn. It's trying to finish gathering itself up so it can make a new body for itself and dive in."

New Leaf looked to his daughters. Sparkler was wringing her hooves. "And to make a new body, it decided it needed… them to make babies."

Starlight nodded.

"Does it, uh, really like, umm."

Starlight nodded. "Incest, pedophilia, coercion, and general weirdness."

"Oh."

Sparkler began crying; Celestia came alongside and spread a wing over her. Sparkler looked up. "How long has it been doing this to me…? Did I bring it here? Did I…"

Celestia pulled her closer against her body. "Sparkler, I think you should hear this before you say anything else. Less than an hour ago, to save this ghost, I planned to have sex with my sister and a foal. At the same time. This ghost has affected us strongly. We are trying to get it all into a body so it can stop doing this to other ponies." Looking up to the smoke, she said, "I'm afraid it might feel that we were trying to cheat it, when Twilight Sparkle tricked us all. But we were serious. If it calms down and doesn't force ponies to go along, we will go do what we said we would do."

Starlight, observing that she was done, added, "Sparkler, to answer your question? It's been going around for two months now, but I don't think you were affected until about five minutes ago."

"So…" Sparkler's fears faded, and a few hopes too.

Derpy sat up. "Sparkler, I love you. You're a good daughter. It was just a ghost."

Luna interjected, "It is still a ghost, and if it loses patience here it might try to escape. Our bubble may be more of a help to it in holding together, than a hindrance to its exit should it make the attempt."

Sparkler nodded, then shook her head. "It wasn't just the ghost. I…" She looked to her mother. "I've been thinking about you and Dad. Trying to understand it. And it's…" she took a deep breath. "I don't know why, but I'm… If the ghost likes incest, it came to the right pony. I'm made of it. I… if it needs somepony and it chose me and… my sister…" She looked up to Derpy, then New Leaf, then Derpy again. "Mom? What… Do you think we should?"

Derpy was speechless and stared back at her, but New Leaf looked away and said, "I… no. I can't think."

Starlight put a hoof on his shoulder. "Do you want to leave?"

"And let them… this is wrong!"

"She's not a child, she's just small at the moment."

New Leaf heated up. "You massive hypocrite! You gave me this lecture after you saved me…"

Starlight stuffed a hoof in his mouth. "I'm sure I did, but I haven't given it to you yet so when I decide what to put into it, I'll make sure that if you were listening carefully it's consistent with doing the right thing as we are in this case."

As soon as she released him, he said, "Unless you've decided by then that this isn't the right thing to do."

"I'll make that judgement at that time. Anything else would bring too much acausal information for the loop to be stable."

"Maybe this loop shouldn't have happened!"

"You'd be dead, and the Apples, too!"

"I'd die to save my daughters from more of what I did to them!"

Derpy outright tackled him and shoved her hoof on his nose. "Dad? Do. Not. Break. This. Loop."

Starlight coughed. "If he's trying to break the loop and I don't want it to break, I just have to say something else…" The lid of Derpy's wandering eye narrowed in her general direction, so she shut up.

The rest of Derpy's gaze focused on her father again. "I sacrificed my life to save something bigger than myself before, remember? I got better, but you wouldn't. And you'd be doing much, much less than saving a princess. And I want you alive. If it'll save somepony else's life, I'll have your foal again. Or my daughter's, if it comes down to that. I'd rather do that than you die. Especially since if you break the loop, the ghost would still be here, and we could end up having to do this anyway!"

New Leaf looked to Celestia and Luna, and swallowed, unable to figure out what to say.

Celestia nodded. "It's okay. We might even need to get your daughter a second medal."

New Leaf threw up his hooves. "All right, fine. Can it not be me? I spent a lot of effort on not wanting to fuck her, and I'd like to not throw that way."

Derpy looked to Sparkler. "Umm. Sweetie, would you?"

Sparkler crossed her hooves in front of her penis self-consciously. "I… guess I should, but I really don't want to?"

Luna spat, "Fuck. And we were this close. The ghost's about to give up."

A knock on the bedroom door. All eyes turned to it. Derpy hovered off of her father, who rolled out of the way of the door's path and stood up. Derpy sat on the edge of the bed, cleared her throat and said, "Who is it?"

"Uh, it's your little uncle Thunderlane. We've, uh, kind of overheard everything. And Fluttershy's shoving me toward the door."

As if to emphasize the point, it suddenly opened and he tumbled in, followed by Fluttershy and Rainbow Dash.

Thunderlane addressed the smoke. "Is an uncle good enough for you?"

Starlight glanced around at it. "I don't think it'll answer. Just, uh, try?"

Thunderlane scratched the back of his head and looked awkwardly at Derpy. "Uh, so…"

Derpy swallowed and looked him over. "I… er… okay, works for me?"

Luna's horn flared for a moment and she gritted out, "We're losing it…" Starswirl brought his horn closer to hers.

Thinking quickly, Starlight cast the foal-age spell on Thunderlane, sending him down to toddlerhood, and said, "Get in her lap."

Thunderlane saluted and hopped up onto Derpy's lap where she sat on the edge of the bed. Derpy hugged him. "Oh, my baby uncle. Mama's little brother. I… this isn't working."

Luna's horn began sparking from strain. "Sister, help…"

Celestia looked at the smoke, and Luna, then trotted over and jammed her muzzle under Luna's tail.

As her sister's tongue barely missed her vulva, Luna yelped and her horn fizzled out, but the relaxation of the strain on the bubble the action brought was so sudden that Starswirl felt an easing rather than shouldering the full burden.

Luna turned her head and glared. Celestia gave her an innocent look. "I'm helping." She put her muzzle in and this time her lick's aim came more true.

Luna gasped and looked out the window through the smoke. A number of ponies were dimly visible. "Privacy bubble… we'll be too loud…"

Fluttershy said, "Rarity said she'd make sure we aren't heard."

Luna collapsed forward onto the bed. "Good."

Meanwhile, Fluttershy joined Derpy on the side of the bed, and accepted her boyfriend from the mare. She cradled him. "Isn't this a cute little thing?"

Rainbow Dash snickered. "Yeah, little and helpless…" Starlight de-aged Rainbow as well with a roll of her eyes. "Hey!"

Fluttershy held Thunderlane up. "He's such a good little boy. Volunteering to save somepony. So brave. He deserves a reward. Do you want a reward, Thunderlane?" Getting the idea, he nodded. And she pulled him up to her face and gave his toddler penis a long lick. Derpy goggled.

Sparkler's eyes darted between that and Luna, now sprawled across the floor on her back as Celestia tonguefucked her.

New Leaf scratched the back of his head. "Uh, honey? Can I go now?"

Starlight Glimmer nodded. "Yeah, I think we got this. I think I'll be able to avoid fucking anyone, but I need to stick around to keep an eye on things."

He nodded and hurriedly moved to exit. Starlight interrupted him, pulling him into a deep kiss. After a last nose-to-nose boop, she released him and he scrambled out of the room and to the stairwell. Where Dinky was standing.

As Night Light and Twilight Velvet climbed up the stairs past them and headed into the room, Dinky asked, "What's going on, Grandpa?"

"Uh, what does it look like happened?"

"I dunno. There was a crash and some ponies rushed through and there's a glowy wall with smoke in it. Is the house on fire?It doesn't smell like it."

"Right, it's not. Stay out of the smoke. It's a ghost. They're taking care of it. How about we head out for, uh, some hayfries or something."

"Aren't you a wizard? Shouldn't you help?"

"I… they don't need more help." Hearing a creak, he added, "Actually, we should get away quickly." He gestured her down the stairs, which she hesitantly did, and herded her out the back as Scootaloo and Rumble made their way in. "How about ice cream?"

"Are mommy and Sparkler going to be okay?"

He nodded. "They're going to be fine."

She narrowed her eyes. "You're worried about them."

A sigh. "Worried isn't really the right word. Let's clear out and let them do what they have to do."