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Depravity Falls	By : GeorgeGlass Category: +G through L > Gravity Falls Views: 15956 -:- Recommendations : 4 -:- Currently Reading : 5
Disclaimer: I do not own Gravity Falls or its characters. I made no money from writing this story.

Chapter List
- 10
- 11
Chapter 11: All Together Now
It took Mabel a while to tell Dipper the whole story of how she had met Dee and everything that happened afterward. Dipper just listened, taking it all in, until Mabel finished.
“Just so I’m totally clear on this,” he said slowly. “Our parents are twins, too, but they didn’t know until after they had us?”
“Uh-huh,” Mabel replied.
“That…sounds like something out of a soap opera.”
“That’s what I said!”
“Wow…”
Dipper looked away, and Mabel felt a rush of guilt.
“I’m so sorry, Dipper!” she cried. “I believed everything Dee said, and I kept it all a secret from you! I even tricked you into eating her magic chocolate over and over again, and I-”
“Mabel,” Dipper interrupted, looking at her, “you didn’t trick me.” He sighed and continued, “I knew what that chocolate was doing to us from the first time we tried it.”
Mabel’s eyes widened. “What?”
“You think I didn’t notice that something weird was going on with you? That you kept disappearing into the woods without telling me why? And that every time you came back, you had some new sex thing for us to try?”
Mabel was stunned—not so much by Dipper’s revelation as by her own failure to see it coming. Not only was Dipper one of the most observant people Mabel knew, but he was also one of the most suspicious. How had she thought she could keep such a big secret from him?
“Then why didn’t you say anything?” Mabel asked. “Why did you keep eating the chocolate?”
“I kept eating it because…I liked it. I mean, not the chocolate itself, because as candy it was middle-of-the-road at best, but because I liked the way it made me feel. And the way it made you feel. And the things we did together because of those feelings”
“But I was just making everything worse!” Mabel cried. “If I’d told you about Dee at the beginning, you would have figured out what she was up to, like, ages ago! How can you be okay with me lying to you all that time?”
“Well, it’s not like I’m totally okay with it. But think of all the times Bill Cipher tricked both of us, and even Great Uncle Ford. How can I blame you for falling for the lies of a being that’s had ten thousand years to get good at lying? You honestly believed you were doing a good thing, and I can’t get mad at you for that. In fact, I-”
Dipper was cut off when Mabel seized him in a crushing hug.
“Thanks, Dipper,” she said, trying not to sob.
“No problem,” the air-deprived Dipper squeaked.
When Mabel released Dipper from her death grip, Dipper caught his breath and asked, “So, where is Dee now?”
“I don’t know,” Mabel replied. “If her little statue is broken, then maybe she’s dead, or…”
“…maybe she’s free,” Dipper concluded. “Which sounds kind of bad.”
“I should probably go look for her,” Mabel said. “Except I’m not sure where to look. Or even what I’m looking for. I mean, would she still look like a booby-lady statue, even though she’s not in the statue anymore? Or maybe she’s like a floaty, hazy, spirit-y thing?”
“Either way,” Dipper said, “you’ll probably know her when you see her.”
***
Lacking other ideas, Mabel went to the two locations she most associated with Dee. She found nothing in the clearing in the woods where she’d had her threesome with Dipper and Darren. So she headed deeper into the forest, to the clearing where the cave was, and then into the cave itself.
“Hello?” she called.
“Hello, Mabel,” Dee’s disembodied voice said, giving the girl a bit of déjà vu.
“Wh- Where are you?” Mabel said, looking around as she took a few steps farther into the cave. “When I found your statue broken, I thought something terrible must’ve happened!”
“Oh, quite the opposite,” Dee replied. “Your act of perversion with those children has freed me from my long imprisonment. I’m deeply grateful.”
Mabel thought about what Blind Ivan had written. “But…isn’t imprisonment for people who did something wrong?”
Dee chuckled. “You know as well as I that many people in society would consider the things we’ve done together ‘wrong.’ Throughout the ages, in every civilization, there have been prudes who wanted to suppress the sexuality of everyone around them. It was a group of such prudes who trapped me in the statue to keep me from bringing the joys of sexual liberation to their people.
“Luckily, trapping me didn’t render me completely helpless. I’ve been able to guide a great many people throughout the millennia, spreading joy and sexual liberation wherever I went. Although it wasn’t until the late twentieth century when I discovered a way to become more than I am now.”
“What do you mean, more than you are now?” Mabel asked.
“I may be free from the statue,” Dee replied, “but to do all the good I wish to do in this world, I require a new form.”
“You mean, instead of being a voice with no body?”
“I’m more than that, even now. But if I show you my true form, you may not like what you see.”
Mabel blinked. “Why…Why wouldn’t I like it?”
“Because it will bring back some bad memories. Just remember when you see me that I am not him.”
“Him who?”
“It will be easier if I show you. Just try to remain calm.”
In the darkness of the cave, an amber light appeared, hovering a few feet in front of Mabel. Then the light expanded, growing bigger and brighter and then taking the form of an amber-colored triangle that was divided by thin lines into brick-like segments. The triangle sprouted spindly black arms and legs, and a little black bow like a hair ribbon appeared at the triangle’s peak. Finally, a single eye with long lashes opened just above center on the triangular body, and suddenly the being looked all too familiar.
“AAAAAAAAH!” Mabel screamed, pointing.
“Oh, let’s not do this again,” Dee sighed.
“You look like that evil triangle guy!” Mabel cried. Then she gasped and said, “Hold the phone, are you an evil triangle girl?”
Mabel heard footsteps running up behind her. She and Dipper had agreed that he would wait just outside the cave in case there was trouble.
“Mabel, Bill Cipher was a demon,” Dipper said. Pointing at Dee, he shouted, “And if he was a demon, then she’s a demon!”
“Mabel, I’m not evil,” Dee replied. “I’m here to bring sexual freedom and joy to you and all your friends and loved ones. Isn’t that what you want—for them to be happy? For you to be happy?”
“Well…sure,” Mabel said. “But, but not if it means you’re going to rule the world or whatever.”
“Mabel, I’ve never forced anyone to do anything they didn’t want. You and everyone else who has ever helped me did so of your own free will. All I did was offer all of you an opportunity to make your lives better.”
“Oh, really?” said a voice behind Dipper and Mabel. The twins turned around rapidly.
“Pacifica?” Mabel exclaimed.
Glaring at Dee, the blonde girl demanded, “Does my life fit anybody’s definition of ‘better’? You didn’t just make me spy on my friends; you made me a whore!”
“Oh, I made you?” Dee replied. “You came to me, remember? You were poor and lonely and bored—so bored that you took the time to decipher the map you found in your old bedroom. I gave you an exciting secret life, a fun way to make money, and most importantly, a purpose.”
“You said I was special!” Pacifica cried. “You said I was helping you get your voice back so you could change the world!”
“Which was quite true,” Dee replied. “Although I suppose the part about you being special was a bit of a stretch. I mean, you have a nice body, especially for a diner waitress, but I’m sure I could have found someone just as attractive and desperate. After all, if the world weren’t full of such girls, there would be far less pornography.”
“You used her,” Dipper accused. “Just like you used Mabel!”
“And Blind Ivan!” Mabel added.
“I made many of Ivan’s wishes come true in exchange for his service,” Dee replied. “You, on the other hand, erased his memory and turned him into a wandering banjo minstrel.”
“Yeah, touché,” Mabel replied, “but-”
“Mabel,” Dee interrupted, “I don’t understand why you’re resisting me after everything I’ve done for you, and knowing everything I could do for you. This is your chance to create a world where everyone is as happy as you are.”
“Do I look happy to you?!” Mabel shouted. “You told Pacifica she was special, but she was just your pawn! Then you told me I was special, and now it turns out I was just your, well, not a pawn, but maybe that little horsie, or the piece that looks like a castle, or-”
“Now listen to me, children,” Dee interrupted sternly. “This pointless discussion is at an end. It is time for you to throw an orgy, one the likes of which this little backwater town has never seen.”
“Why would we do that?” Dipper demanded. “We’re not gonna do anything that’ll make you more powerful.”
Dee turned to Mabel. “You’ve done so well with the carrot; don’t make me use the stick. I may not be as ancient or powerful as Bill Cipher, but if you found his ‘hench-maniacs’ frightening, you should know what my horde of succubi and incubi could do to this town—and everyone in it.”
“Your suckies and inkies don’t scare us!” Mabel retorted.
A yellow-edged portal opened in the air below Dee. Beyond it, Mabel saw several large, humanoid beings with red skin and black horns. One of them, a curvaceous female, smiled lustily at Dipper, baring a pair of fangs and beckoning to him with one claw-tipped finger. A broad-chested male looked at Mabel and Pacifica with lust in his coal-black eyes; his huge, barbed cock grew hard between his muscular thighs.
“Okay,” Mabel shouted at Dee, “your suckies and inkies kinda scare us!”
Dee closed the portal, took a breath, and continued, “Now, the orgy must conclude with the most important event of all: The Pines twins having sex in front of all of the participants.”
“Why is that a big deal?” Mabel demanded. “It’s not like nobody’s seen us have sex before.”
“Indeed, Mabel,” Dee replied. “But no one has ever seen you get pregnant before.”
Mabel’s eyes went huge. “P- Pregnant?”
“I can take away your magic birth control whenever I choose. And I will do so when it is time for you to fulfill your destiny and conceive a child by your brother.”
“What?” Dipper cried. “That’s insane! We’re not doing that!”
“Oh, little Dipper, you did see the succubi and incubi, yes?” Dee asked. “Just imagine them ravaging the town, and your friends…and your sister.”
Dipper’s fists clenched, but he said nothing.
“Why do you need me to get preggo?” Mabel demanded.
“Because,” Dee replied, “becoming pregnant by your own brother is one of the greatest acts of perversion you could perform.”
“But that’s not the only reason, is it?” Dipper accused. “You want us to make you a ‘perfect vessel’ so you can become human!”
“Ahhhhh, I see how it is now,” Dee replied. “You’ve been reading old Ink-Head’s supposedly secret diary. Well, no matter: Perhaps knowing your fate will help you embrace it. Because you really have no other choice.
“Now, we’ll schedule the orgy for dusk, which will give you the day to prepare. Pacifica, you will assist them. We’ll need a large, comfortable space, of course; outdoors is always nice if the weather permits, so do check the forecast. Snacks and drinks are essential, as the orgy will go into the wee hours. Wine, weed, and ecstasy, although traditional, will be unnecessary, as Mabel will be lowering everyone’s inhibitions with her gift. But some decorations might be nice; I’m sure Mabel can choose something fun.”
“Great,” Mabel grumped. “Just what I always wanted to be: a party planner for the apocalypse.”
“Come now, Mabel,” Dee chided. “Let’s put you in a more positive frame of mind. I can’t control your thoughts, but I’ve grown powerful enough to control your mood, just as my chocolates did.”
Dee produced an amber-colored aura that momentarily enveloped all three teens before it faded away.
Mabel’s anger vanished. She still knew that Dee had betrayed her, but somehow it didn’t bother her anymore. Instead, Mabel felt…festive. Very festive.
“And don’t worry about the expenses,” Dee said. “Once I’m running the world, I’ll reimburse you ten times over. Just keep your receipts.”
Mabel clapped her palms together and said to Dipper and Pacifica, “All right, people, let’s get to it! We’ll grab the golf cart and hit Party Pig for decorations, then Sir Sav-A-Lot for food and bevs. Oh, and we’ll need a ton of comfy blankets and stuff for everyone to bone on. Let’s go, we’re burning daylight!”
“Yeah, let’s do it!” Dipper shouted.
“Party on!” Pacifica cheered.
***
As the three teens headed through the forest toward the Shack, Mabel couldn’t stop thinking excitedly about the details of the upcoming orgy. The fact that her enthusiasm had been imposed by Dee didn’t make it feel any less real.
Yet the rational part of her mind knew that Dee needed to be stopped. But how? There was a footnote in Blind Ivan’s secret diary that included the incantation needed to split Dee between “two imperfect vessels,” but Ivan hadn’t explained what kind of vessels he meant. Ships? Bottles? Ships in bottles? It was kind of like a riddle.
And just as importantly, how was Mabel going to find a way to stop Dee without the motivation that came from anger and fear? Being in full-on party mode made it hard to think straight about anything serious.
There’s only one thing to do, Mabel thought. I’m going to have to find a fun way to stop her.
***
Hours later, the golf cart pulled away from Sir Sav-A-Lot. The back was loaded almost to the cart’s canopy with food, bottles of sofa and sports drinks, and the many decorations the three teens had acquired at Party Pig.
“Okay guys,” Mabel said. “Anywhere else we should go before we head back to base and start setting up?”
“Hey, we should rent one of those foam machines,” Dipper said. “Wait, nah, then the blankets and stuff would get all wet. Maybe just a bubble machine?”
“Great idea!” Mabel replied.
Pacifica added, “I’ve got cheap blankets and a couple of used sleeping bags at my house.” Her voice sounded a little strained as she added, “And maybe some other stuff we could use.”
Oblivious to Pacifica’s tone, Mabel answered, “Perfect!” Then she stepped on the gas and shouted, “Onward!”
***
By early evening, the three teens had almost completed the setup of what Mabel was calling “the Bone Zone.” The forecast called for clear skies, so they had selected a secluded hilltop for the event, and they had already covered the ground with a hodgepodge of old blankets, sleeping bags, and yoga mats. Now, Dipper was setting up poles around the periphery of the zone, and Mabel was stringing festive white lights from pole to pole. Using skills learned from Soos, she had set up a car battery with a DC-to-AC converter to power the lights and the bubble machine.
Pacifica, meanwhile, was maneuvering a large, wheeled cooler full of ice and drinks into its place next to the snack tables. These were laden with bowls of popcorn and Chipackerz (“The chip-flavored crackers!”), blocks of cheese to provide much-needed protein, and a great many sweet treats from Sir Sav-A-Lot’s bakery section.
Mabel had just switched on the string of lights when an amber glow appeared in the air above them and coalesced into Dee.
“Ah, this is excellent!” she declared, looking around at the setup. “Mabel, you would have been right at home in ancient Rome. What a gift you have for throwing an orgy!”
“Thanks!” Mabel replied.
“Ah, but wait,” Dee said. “What about lubricant?”
“We’ve got that covered,” Pacifica replied, opening a cardboard box that was filled to the brim with single-use lube packets. She looked a bit proud as she added, “I know a guy.”
“Perfect,” Dee replied. Then, looking at all three kids, Dee said, “Now, you are all going to be my horny little goats this evening. And Mabel, you won’t be able to keep from projecting your randiness to every teenager in town. They’ll drop whatever they’re doing and come to you, drawn by the lust you have stirred up inside them.”
“Just the teenagers?” Mabel asked.
“Of all the people in Gravity Falls,” Dee replied, “the teens are the most attractive. Or the least hideous, at any rate.”
“She has a point,” Pacifica said.
“Especially since Robbie’s out of town,” Dipper added.
“And are you all dressed for the occasion?” Dee asked, as all three teens were wearing their regular clothes.
“Oh heck yeah,” Mabel replied.
“Then let’s begin,” Dee said.
That amber-colored aura again surrounded Mabel, Dipper, and Pacifica. But this time, the aura filled Mabel with lust—lust as powerful as any she’d felt since she began her sexual adventures in Gravity Falls. It was so strong that Mabel couldn’t help but project that feeling outward in all directions.
“Oh, God, I’m so horny,” Dipper breathed.
“Yeah,” Pacifica replied, putting her hands to her own heaving bosom. She looked at Dipper and said, “You wanna-”
“Save it for the guests, children,” Dee interrupted. “Now, I’m going to disappear for a while. No sense confusing everyone with my appearance and distracting them from their urgent need to fuck their little brains out. Ta-ta!”
She vanished. Then, only minutes later, teenagers from all over town began to appear.
“Wow, Mabel,” Dipper said as thirty or more teens approached in a broad, disorderly wave. “I can’t believe you got all these kids to come here!”
The assembled teenagers all looked puzzled but also horny as hell. Candy and Grenda were there, as was Darren, plus Wendy and all her teenage friends. There were also a bunch of other kids whom Mabel had only met in passing, including all three of Wendy’s younger brothers.
It was those three boys who seemed most affected by Mabel’s wordless siren song. They had arrived with Wendy, but now they left their sister’s side and approached Mabel, looking at her with both childlike wonderment and adult-like lust.
“Oh, hello, boys,” Mabel said coyly. “See anything you like?”
Before the three young redheads could say anything, Mabel pulled off her sweater and let her skirt fall to the ground next to her little cat-face purse. Underneath, she was wearing nothing but the red-and-white sling bikini bottom she had recently finished knitting.
Gus, the youngest Corduroy brother, was not yet a teenager and thus had not been among the targets of Mabel’s projected lust. Mabel figured he had probably just followed his brothers out of habit. But now, he appeared as affected as they were; he pointed at Mabel’s bare breasts and stammered, “Buh- buh- buh- boobies…”
Pacifica stepped out of her boots, then shrugged off her purple sweater and peeled off her dress. Underneath, she had worn her best lingerie: a lavender bra-and-panty set made of shiny sateen. The girl had nice breasts to begin with, and the bra lifted and presented them so attractively that some of the male attendees could look at nothing else. Others, though, managed to drag their gaze down to her panties, which formed an immodestly narrow V between her smooth, pale thighs.
Dipper, too, shucked off his outer clothing. He was wearing another pair of silky boxer shorts, this time in red. Some of the girls in the crowd found themselves fixated on the bulge in the front, which the bright color accentuated.
Dipper made a beeline for Wendy—until Tambry stepped directly in front of him, holding her phone in both hands but with her gaze fixed on Dipper as she thumb-typed.
“Status update,” she said raspily. “I need to get pounded into the fucking ground by an insane twelve-year-old.”
“I’m thirteen, but hell yeah!” Dipper replied. He literally threw himself at Tambry and started tongue-kissing her like mad as he tore at her clothes and she ran her hands all over his naked chest and back.
Grenda and Candy had arrived together, but within moments, Grenda’s eyes seemed to lock onto Thompson. Then the hefty girl ran at him and hollered, “Give me your body, you beautiful man-pig!”
As Grenda charged Thompson like a horny rhino, Mabel could see a torrent of emotions flood rapidly over Thompson’s face: excitement about the attention, anxiety over the fact that the attention was coming from a thirteen-year-old, and fear that said thirteen-year-old was about to crush him to the consistency of canned diced tomatoes.
Grenda leaped at Thompson and knocked him down with a flying tackle; his pudgy body cushioned their fall as she landed on top of him. Then they started making out like mad.
Wendy’s friend Nate approached Candy, who was staring unabashedly at the bulge in the older teen’s jeans.
“Hey, short stack,” Nate said suggestively. “How come I never noticed before what a little hottie you are?”
Her gaze still laser-focused on Nate’s crotch, Candy replied ethereally, “Penis…Please take out…penis…”
“Works for me!” Nate said.
He unzipped his pants and took his hard cock out through the fly of his boxers. Candy squealed “PENIIIIIIIIIIS!”, then seized Nate’s member by the base and started licking it like she was in some sort of popsicle-eating race.
“Oh fuck yeah!” Nate cried.
Pacifica, still looking sexy in her lavender bra and panties, sashayed up to Nate’s friend Lee. She used her forearms to squeeze her boobs together in an eye-catching manner as she spoke to the older boy.
“Hey, big guy. How about a little you-and-me time?”
Lee began yanking off his clothes as he gasped, “Oh yeah.”
Wendy and Darren locked gazes and quickly reduced the space between them from several feet to half an inch.
“Ever done it with a y- younger guy?” Darren asked boldly.
“Not enough of them,” Wendy replied, and tackled Darren to the ground. She straddled his hips and dry-humped him while they made out like crazy.
Mabel looked eagerly at her three redheaded admirers as she thought, There’s an older one, a younger one, and one my age. It’s a sexual smorgasbord!
“C’mere, boys,” she said, teasingly fingering the waistband of her homemade panties. “You can look and touch.”
Marcus, the oldest boy, seemed to be in a trance as he approached Mabel. His hands went straight to her breasts, which he fondled while staring at them open-mouthed.
The middle Corduroy brother, Kevin, appeared equally mesmerized. He walked around behind Mabel, his eyes looking at nothing but her body as he moved. Mabel guessed that being so close to her had put the Corduroy boys completely under the sway of her projected lust.
Kevin’s fingertips hooked the edges of Mabel’s panties and pulled them down. Then the boy moved his hands up and down over the curves of Mabel’s bare ass again and again.
The youngest brother, Gus, now found himself at just above eye level with Mabel’s exposed pussy—which Mabel had shaved bald for this special occasion. Slowly, Gus reached his hand out to it, then began fingering as much of Mabel’s naked sex as he could reach in her current position. Mabel stepped her feet a little farther apart to give the boy better access, and soon his fingers were exploring the warm, wet space between her pussylips.
“Poonie…” the young boy breathed.
“Yup, that’s my poonie!” Mabel replied. “And you can play with it all you want.”
As she enjoyed all of this manual attention, Mabel looked around at the others. Tambry was stripped to just her midnight-blue panties, and she was moaning as Dipper sucked and tongued her breasts, which had grown a bit since the previous summer. Candy was still on her knees in front of Nate; now she had his cock in her mouth and was sucking it avidly while the older boy moaned, his eyes halfway back in his head. Grenda was on top of Thompson and was moving her panty-covered pussy forward and back over the prominent bulge in Thompson’s shorts while Thompson ardently fondled Grenda’s substantial tits. Pacifica was stroking Nate’s cock like the pro she was while Nate fumblingly undid her bra clasp and then felt up her bare breasts. Wendy was on her back, her flannel shirt still on but her jeans and panties off. Darren’s face was between her freckled thighs as the younger teen eagerly ate her red-tufted pussy.
Being fondled and fingered by three boys at once was proving to be a fun new experience for Mabel. The fact that she was buck naked while they were all fully clothed added to the perverse uniqueness of the situation. But it was making her so horny that she needed to move things along.
“All right, boys,” she said, “time for you to get naked. Mama needs to see some dicks!”
Mabel found herself in the eye of a flannel hurricane as the three boys tore off their clothes and sent them flying. Now, to her delight, she had cocks of different sizes pointing at her from three directions, each one hard and hungry for her.
Gus, being the only preadolescent Corduroy brother, had the smallest cock. So after Mabel dropped to her knees in front of him, she had no trouble taking his entire length into her mouth. She wrapped her hands around the two older boys’ members and jerked them off as she sucked Gus’ cock vigorously.
It took only seconds of this treatment to make Gus start moaning continuously. And when Mabel began bobbing her head, massaging his whole length with her lips, the boy cried out, “Hah! Hah! Hah! HaaaaaAAAAH!” as he came. Mabel was both disappointed and excited by the fact that Gus wasn’t old enough to shoot cum in her mouth.
Mabel might have been extremely horny, but she was also still very much in the fun-loving spirit with which Dee had imbued her. So even though Mabel was anxious to fuck, she was also excited to try and get all three Corduroy boys off with her mouth. She released Gus’ cock from between her lips.
“Let’s have Kevin in the middle now,” Mabel said.
“Oh fuck yeah,” Kevin breathed, and switched places with Gus.
Mabel put Kevin’s semi-tumescent cock in her mouth and started sucking. Kevin’s cock was about the size of Dipper’s, so Mabel felt quite comfortable blowing the redheaded teen even without the use of her hands. As she bobbed her head with increasing speed on Kevin’s member, Mabel had enough spare bandwidth to appreciate how exciting all of this was.
Here I am on my knees, she thought, pleasuring three dicks at once. I bet even Pacifica has never done this. I’m a bigger whore than the actual whore, and I love it!
Kevin’s stomach was blocking most of Mabel’s view, but her peripheral vision, hearing, and mystical lust-sense gave Mabel a good idea of what was happening around her. For one thing, everyone was fully naked now.
Tambry spread her legs beneath Dipper. He pushed inside her, and they started fucking at a moderate pace, the two of them moaning and gasping.
Nate was sitting on the ground with his legs out in front of him. Candy sat on his lap facing him as she moved up and down on his cock. Nate held her cute ass in both hands and helped her move.
Pacifica was on all fours in front of Lee. Her boobs jiggled with each of his thrusts into her pussy from behind, and both of them were panting.
Wendy was riding Darren cowgirl style. Mabel could sense that the sight of the boy’s young face looking up at her was a big turn-on for Wendy.
Grenda was on top of Thompson in a sixty-nine position. She sounded like she was trying to choke herself to death on his cock even as she ground her pussy against his face. Mabel could feel the girl’s lust-driven determination to swallow Thompson’s cock whole.
Although Mabel didn’t know most of the other orgy participants very well, she could catch random snippets of their desires. A great many virginities were being enthusiastically discarded. Some of the kids were fucking someone they were currently dating; others were simply getting it on with whoever had been handy when they arrived. Most exciting were the ones who were finally banging their long-held secret crushes.
Mabel was now bobbing her head on Kevin’s cock. The boy was so horny that she went ahead and picked up speed until Kevin was shouting “Oh God! Oh God! Oh yeaAAAAAAAAH!” and shooting his load into Mabel’s mouth. Mabel, delighted to be receiving her first cumload of the night, swallowed it eagerly.
The Corduroy boys seemed to understand Mabel’s plan, because there was no discussion before Kevin and Marcus switched places. Mabel grinned at the sight of Marcus’ cock; it was the biggest one she’d yet seen, and it was so erect that it was bobbing in front of her face, the head mere inches from her lips.
She looked briefly up at Marcus’ face. The boy was panting with excitement, his chest heaving and his mouth slightly open. He stared intently down at Mabel, as though he were silently begging her to please, please, please suck his cock.
Well, Mabel thought, since your eyes asked so nicely…
She wrapped her hand around the base of Marcus’ cock and gave the head a few long licks. But Marcus clearly needed no more warm-up than that, so she put his cockhead in her mouth and immediately began bobbing her head on it.
Marcus moaned loudly and put both hands on Mabel’s head, which made Mabel remember her double-ended fuck with Dipper and Darren and thus gave her an idea. She took Marcus’ cock out of her mouth and looked up at him again.
“Hey, big boy,” she said. “Wanna fuck my face?”
Marcus didn’t speak. He just tightened his hold on Mabel’s head, shoved his cock back into her mouth, and started fucking it like mad.
Mabel hadn’t yet tried deepthroating a boy, but she had been gearing up for it by learning to suppress her gag reflex. So even though Marcus’s cockhead was punching her uvula like a speed bag at a boxing gym, Mabel didn’t choke or cough. In fact, the intensity of Marcus’ lust and his powerful need to use her sexually were turning her on, so she rubbed her clit with one hand and fondled one of her breasts with the other as the boy face-fucked her ardently.
Marcus’ grunting and panting quickly grew louder. The sounds made Mabel even more excited, and she rubbed her clit faster and faster. Even so, she wasn’t completely expecting it when orgasm suddenly hit her and she was screaming “MMMMMPH!” around the thick cock pistoning in her mouth as she came. And then Marcus came, too, and Mabel was eagerly swallowing his generous load.
Marcus pulled out of Mabel’s mouth and fell to his knees, panting for breath. Mabel, also trying to catch her breath, sat down and took a look around.
Dipper and Tambry were now fucking like mad. Tambry’s eyes were closed, and the girl was crying out “Uh! Uh! Uh! Uh!” as the grunting Dipper thrust powerfully into her again and again. Mabel liked seeing her brother’s ass working and flexing between Tambry’s wide-open legs.
Candy was riding Nate like he was a bucking bronco. She shrieked with pleasure as she and Nate repeatedly forced Nate’s cock up inside her.
Lee was doggy-fucking Pacifica at maximum speed. Pacifica cried out, “Oh God! Oh fuck! OH YEEEESSSSSS!” Her orgasmic spasms set Lee off too, the boy shouting “AAAAAH!” as he shot his load into the younger blonde teen.
Wendy and Darren had already cum from their cowgirl-style fuck, and now they were lying down, with Darren on top of Wendy as they made out. Mabel noticed Darren’s cock already growing hard again.
Grenda’s face was now pressed against Thompson’s thighs, because the girl had swallowed Thompson’s entire length. Her throat bulged as its muscles massaged the boy’s cock. Thompson, his face buried in Grenda’s pussy, shouted “MMMMPH!”, and then Grenda was swallowing fast and hard as she gulped down every drop of her older lover’s cum.
Being face to face with Marcus now, Mabel could see that while the boy might need a moment to recover from his powerful climax, his eyes still burned with lust. A glance at the other two Corduroy boys suggested that they, too, were still consumed with desire. Fortunately, Mabel knew just what to do about that.
“All right, boys,” she said to the three redheads. “Time for the main event.”
Mabel had been fantasizing about her first triple penetration practically since her first double penetration. So she already knew exactly what she wanted the boys to do.
“Marcus,” Mabel said as she grabbed one of the single-use lube packs, “you lie down, and I’ll get on top of you.”
Marcus lay down on his back. His big cock was already hard again. Mabel didn’t even have to look at the other two boys to know that they were rock-hard, too.
Mabel lubed up her asshole and tossed the packet away. Then she climbed on top of Marcus, who seemed to instinctively know to take hold of his cock by the base and hold it straight up for Mabel. Mabel slowly lowered herself down and impaled her pussy on Marcus’ member.
“Ohhhh, yeahhhh,” she breathed as the big fuckrod disappeared into her depths.
Once Marcus was fully inside her and her thighs rested on his, Mabel looked back at Gus and pointed to her lube-shiny asshole.
“Okay, cutie,” she said. “Just put it right in here.”
The young boy couldn’t have looked more eager. He put his cock against Mabel’s tight rear hole and pushed, then sighed with pleasure as he sank into her.
Now, Mabel grinned up at Kevin and said, “Put it in my mouth. You’re gonna like this blowjob even better than the last one.”
Kevin put his cockhead to her lips and pushed it into her mouth. Then Mabel began to move slowly forward and back, simultaneously fucking herself on Marcus and Gus’ cocks and massaging Kevin’s member with her lips. Having all those cocks inside her body was bliss, and she could tell from the sounds the boys were making that it was pretty great for them, too.
Reaching this new height of sluttiness seemed to amplify Mabel’s senses even further. Even though her eyes were closed, she knew exactly what was going on around her.
There had been some switching around of partners. Darren was on top of Candy, kissing her deeply as the girl seized his cock to put him inside her. Tambry was on all fours, getting it from both ends from Nate and Lee. Pacifica and Wendy were making out and fondling each other’s breasts while Wendy rode Dipper’s cock and Pacifica straddled the boy’s face. Only Grenda and Thompson hadn’t switched partners; Grenda was on all fours in front of Thompson, showing him her wide, curvaceous ass and hollering, “Breed me like a hog! LIKE A HOG!” Thompson plunged his cock into Grenda’s pussy and doggy-fucked her like mad.
All of this passionate lust was inspiring to say the least.
It’s like I sent my horniness out into the world, Mabel thought, and it’s coming back ten-fold. Maybe even more-fold.
All that lust was bringing Mabel’s attention fully back to herself and the three boys she was fucking. She started riding the cocks in her pussy and asshole faster, which caused her to stimulate the one in her mouth more vigorously with her lips as her back-and-forth movement accelerated.
Behind her, Mabel heard Gus moan, “Ohhhhhh…Oh, wow…” as her tight ass-ring massaged his cock. The boy’s small hands squeezed her ass lustily.
Beneath Mabel, Marcus was panting and looking up at her face. His thick cock felt wonderful as it moved inside Mabel’s pussy, and she could see and feel that the tightness of her love-tunnel felt just as wonderful to him.
But it was Kevin who was about to get Mabel’s big surprise. Inspired by Grenda, Mabel took a deep breath, pushed her face forward, and swallowed Kevin’s cock to the balls.
“OH MY GOD!” Kevin screamed. Then he seized Mabel’s head and shot his load straight down her throat. Mabel swallowed repeatedly, her lips and throat muscles milking every drop of seed from him.
Kevin pulled out and took a stumbling step back, gasping. This gave Mabel considerably more room to move; thus, she increased both the speed and the range of her thrusts so that she was fucking herself hard on the cocks in her pussy and ass.
Gus was holding on to her ass as though for dear life. Mabel sensed that, having the shortest cock, the preteen didn’t want it to fall out of her little rear hole for even a fraction of a second. So the boy did everything he could to keep his hips close to her ass as he fucked it with all his might.
“AaaaahhhAAAAAAAAH!” the young boy cried, cumming hard. Mabel could imagine the copious load that he would have pumped into her ass had he been old enough.
The gasping, panting Gus pulled out of Mabel’s ass and fell back to gasp for breath on the ground. So now, Mabel straightened up on top of Marcus and rode him like mad. Marcus seized her hips and helped her move as his own hips bucked hard against her thighs.
“Ngh! Ngh! Ngh! Ngh!” Marcus grunted.
“Huh! Huh! Huh! Huh!” Mabel grunted in time with him, slamming her ass down on Marcus’ pelvis again and again.
“GyaaaaAAAAH!” Marcus cried, and when Mabel felt his hot seed geysering up into her depths, she shrieked “AAAAAAIIIIIII!” and thrashed wildly on top of Marcus.
Mabel was still sitting on top of Marcus and had just caught her breath when Dee appeared above the crowd. Most of the other participants in the orgy either didn’t notice her arrival or were too absorbed in their sexual activities to care.
“Oh my goodness,” Dee breathed. “The power flowing into me from all this debauchery is indescribable. Now, it’s time for the main event!”
Naked and messy, Mabel stood up rapidly. She had been so wrapped up in preparing for and then enjoying the orgy that she’d almost forgotten what the pyramidal being was planning. And it seemed that Dee had released Mabel from her state of horniness and her party-time attitude, because now, Mabel’s chief emotion was anxiety.
“Did you know, Mabel,” Dee went on, “that you have just ovulated? I’ve been using my powers to keep you from getting pregnant as I awaited this moment. But now, you and your brother will create my perfect vessel: the twincest child of a twincest child, conceived at the climax of an orgy. The literal embodiment of sexual depravity.”
Dipper had been lying between Wendy and Pacifica, playing with both girls’ clits in preparation for another round of sex. Now he sat up rapidly and glared at Dee.
“Why the heck would we ever do that?” Dipper shouted defiantly.
“I should think a libidinous teenage boy like you would know the answer to that,” Dee said solicitously. She floated closer to him and said, “You will do it because your lust controls you.” Then she turned to Mabel and added, “Just as your desire for your brother controls you.”
Dee swept her hand in front of their faces. Suddenly, Mabel felt sexual urges rising within her. No, not just urges—need. Need that was growing stronger by the moment.
“Dipper,” she said tremulously, “I feel- I- I need-”
“-you,” Dipper said raspily.
They seized each other and kissed passionately, forcefully, each twin’s tongue invading the other’s mouth as though hunting desperately for satisfaction deep within. The kiss only broke when the twins needed air.
“Mabel,” Dipper gasped in her ear, “I need to fuck you…I need to…to…impregnate you…”
“Yes,” Mabel panted. “Make a baby in me, please make a baby in me…”
Mabel fell backward to the ground and pulled Dipper down on top of her. She wrapped arms and legs around him and again kissed him deeply and passionately.
“Put it in,” she breathed in his ear. “Put it in me. I need it in me.”
She loosened her leg-grip on Dipper’s ass just enough that Dipper could reach down between them. As soon as he put the head of his cock against her entrance, Mabel again squeezed him to her with her legs, pushing his cock inside her to the balls.
“Ooooohhhhhhh…” the twins moaned.
When they began to fuck, their movements were slow. But the penetration was deep and forceful, each twin trying to derive as much pleasure as possible from every thrust. The satisfaction they had derived from their sexual activities with others was forgotten; the only release that mattered was the one they were chasing now.
“Oh yes…” Mabel moaned. “Fuck me deep, Dipper…Fuck me all the way to my womb…”
“Oh, God, yes,” Dipper breathed. “I don’t want to be anywhere but deep inside you, fucking you, loving you, breeding you…”
Dipper had never used the word “breeding” with Mabel before. Hearing him say it, hearing him mean it, further stoked the flames of Mabel’s already burning lust. She fucked her hips against him faster, and she used her legs around his hips to help him fuck her faster. Which Dipper seemed eager to do.
At this point, Grenda and Thompson were the only other kids who were still having sex. Grenda was hollering “Harder! HARDER!” while a sweating, gasping Thompson fucked her asshole with maniacal force and speed.
The other kids, heedless of their nakedness, sweatiness, and coverage with their own and others’ bodily fluids, had gathered around to watch Dipper and Mabel. They stared at the rutting twins in a trance of erotic fascination.
“This is totally intense,” Wendy murmured.
“And so fucking hot,” Lee replied.
“Knock her up, Dipper,” Nate breathed.
“Yeah, knock her up,” murmured Marcus.
“Put a baby in your sister’s belly,” Candy said, staring at Dipper’s ass as it went up and down between Mabel’s thighs.
“Take that cock, Mabel,” Pacifica murmured. “Take it, take it, take it…He’s got so much cum, and he’s gonna shoot it all inside you…”
Mabel couldn’t do anything but fuck her hips as hard as she could against Dipper’s, and beg him with her moans and gasps and whimpers to do the same. Dipper fucked her as hard and fast as he ever had, and as his cock pumped madly inside her, Mabel could feel his climax rising as easily as she could feel her own. What was more, she felt a huge load of fertile seed building up within him, an army of millions getting ready to flood into her womb, to find that waiting, eager egg and plunge in.
“M- Mabel,” Dipper gasped. “I can’t- I have to- AAAAAAAAAAAHHHH!”
He rammed into Mabel to the hilt. She felt thick ropes of her brother’s cum shooting into her, up into her, straight into her womb.
“Oh, God, Dipper!” she cried. “I can feel your sperm inside me, and there are so, so many! And they’re all swimming towards my egg…and…and they’re gonna…AAAAAAAAAAAAAAAAHHHHHHHHHHH!”
She screamed and screamed. her body convulsing with the most powerful orgasm of her life. She clutched her brother to her with her arms and legs, instinctively keeping his cock buried balls-deep in her pussy, which squeezed his member again and again to milk him of the semen her body desperately craved.
When it was over, she was gasping for breath. Heedless of the sheen of sweat coating her and Dipper’s naked bodies, she continued holding him tight against her, inside her, until her climax finally subsided into the most luxurious afterglow imaginable.
As she floated in a haze of bliss, Mabel summoned all of her force of will. Still beneath Dipper, she stretched out her hand, reached into her cat-face purse, and closed her hand around something tiny inside.
“Please…” she said weakly. “I need…something…to drink…”
Dee looked down at Dipper with a smug smile. “Yes, Dipper dear, do help your sister. We need to keep her healthy and hydrated for the next nine months, after all.”
Dipper got up and fetched Mabel a cup of yellow sports drink. She accepted it with one hand.
Then, as quick as a wink, Mabel opened her other hand and tossed a little white pill into her mouth before chasing it down with a big gulp of her drink.
“Psych!” she shouted, looking defiantly up at Dee.
“What was that?” Dee demanded. “What have you done?”
“It’s called Backup Plan, beeyotch!” Mabel replied. “No perfect vessel for you!”
Dee looked aghast at Mabel. “Where would you even get-”
“From me,” Pacifica interrupted. “So you can take your hand out of my ass now, because I’m done being your puppet.”
“We all are,” Dipper added. “You might have kept us from being angry at you, so we made a game of figuring out how to beat you. And what do you know, it’s working.”
There was a pleading note in Dee’s voice as she said, “Mabel, I might have withheld some things from you, but I never told you anything that wasn’t true. You are special and powerful and sexual, and you do have a magnificent destiny. You and your brother could rule the world like twin gods, second only to myself in power, and be loved, admired, and worshiped by all.
“There’s no reason we can’t try again,” Dee continued. “We can have another orgy on another day. We can still fulfill your destiny. All you need is to take this one last step with me, and you can have anything you want, everything you want!”
“Yeah,” Mabel sighed as she looked down at her shoes. “That would be pretty sweet.”
Then she looked back up at Dee, and her eyes were like steel.
“But another triangle person already gave me everything I ever wanted,” Mabel went on. “And you know what? It wasn’t that great. I mean, I kind of miss those waffle guards with the big arms, but really, I just wanted to be with my friends…and my brother.”
“The real one,” Dipper clarified. “Not frickin’ Dippy Fresh. Did not care for Dippy Fresh.”
“Dude,” Mabel said, “you’ve gotta get over that.”
“Do you think,” Dee cut in, “that you children can stop me? I have corrupted far greater minds than yours! I convinced Cleopatra to have a bed built so a dozen men could service her at once. I persuaded Caligula to make incest with his sisters a way of life. The Marquis de Sade, John Wilmot, Leopold von Sacher-Masoch, Anaïs Nin, Lolo Ferrari, I bent all of them to my will!” Her tone became pensive as she went on, “Well, not so much Sigmund Freud, who said I was ‘more Thanatos than Eros’ and pitched my statuette into the Danube. But the rest of them, yes!”
“We know at least one other person who resisted you,” Dipper retorted. “Blind Ivan knew you were up to no good!”
“Ah, yes, that tattoo-headed nitwit caused me a great deal of inconvenience. If it weren’t for him, I could have gotten my plans underway last summer. But perhaps it’s better this way; now, I won’t have Bill Cipher mucking up my efforts with his ridiculous campaign to create a world of nonsense and misery. Under my domain, the people of this Earth will be happier than they have ever been. Except, of course, for any who choose to oppose me.”
Mabel looked earnestly at Dee. “I know you’re not all bad. You taught me things that helped me. You made me more confident. You made me realize that I can be sexier and stronger than I ever thought.”
Dee flew down and looked Mabel in the eyes as she replied, “Yes. Yes, you understand. I gave you the tools to be strong. I gave you the tools to be happy.”
“Yeah, you did,” Mabel replied. “Which is why I’m okay with having a part of you inside me forever.”
“A part of me?” Dee said. “What do you mean? Once you are pregnant with our child, you will have all of me within you, waiting to be born.”
“No,” Mabel replied. “We figured out that if the twincest child of a twincest child would be your perfect vessel, then us plain old twincest children must be imperfect vessels. So I’m just going to have half of you inside me.”
“And I’m going to have the other half,” Dipper added.
He grabbed two sheets of paper out of his backpack and handed one to Mabel. Each sheet bore the same text, copied by hand in fun-Mabel’s script, with each I dotted with a star and the Ss drawn as cartoon worms.
Dee’s voice was barely more than a whisper as she said, “No…”
In unison, the twins read aloud: “Triangulum! Entangulum! Domina carnes inter nos scissa est!”
“Don’t you know what will happen if you do this!?” Dee shouted over them. “You may destroy my consciousness, but my spirit will dwell within you for the rest of your lives! You will feel lustful urges you cannot resist, an unquenchable desire to engage in every kind of debauchery! You will be perverts forever!”
“Eh,” Dipper replied, looking up from his paper. “We can live with that.”
“Yeah, being perverts is fun!” Mabel chimed in. “We just don’t wanna be your perverts.”
The twins looked back at their pieces of paper and continued reading, this time in English. “Let that which is one be torn in two! Let our bodies be its vessels! Let our bodies be its vessels! Let our bodies be its vessels!”
“You might have beaten Bill Cipher,” Dee cried, “and you might have beaten me, but there is an entire race of us! You will never overcome all of- AAAAAH!”
Before their eyes, Dee was ripped in half from peak to base. Then the two halves seemed to liquefy, becoming two blobs of ghostly amber fluid. Mabel and Dipper raised their arms and opened them wide, and the fluid flowed in two streams into the twins’ chests.
And then Dee was gone. For a moment, there were no sounds save the chirping of a few birds and crickets.
“What’d I miss?” Grenda said, standing up. She seemed either not to know or not to care that she was still buck naked and had semen running down her thighs and the backs of her legs. Thompson lay woozy and drooling at her feet.
Dipper looked at Mabel and smiled as he said, “I guess we won, Sis.”
The other teens around them began to stir. One, a boy Mabel didn’t know, looked at her and Dipper with raised eyebrows.
“Hold up,” he said. “Are you guys siblings?”
Mabel smirked as she replied, “I don’t know, you naughty boy, we’ve never sibbled.” The boy’s brow furrowed in confusion.
Pacifica, seemingly also heedless of her nudity and messiness, approached the twins.
“Are you guys okay?”
“I think so,” Mabel replied. “I don’t really feel different.”
She glanced down at Pacifica’s naked body, then embraced the girl and squeezed her ass before letting go.
“Okay,” Mabel corrected, “maybe I feel a little different.”
Dipper looked around and said, “So I guess we’ll just wait until everyone goes home, then clean up?”
“Let’s clean up in the morning,” Mabel replied. “I’m bushed.” Then she ran a hand down over her shaved pussy and chuckled as she added, “Maybe ‘bushed’ is the wrong word.”
“Pacifica,” Dipper said, “why don’t you take the golf cart home? You can bring it back in the morning for the cleanup.”
“Thanks, Dipper,” the blonde teen replied.
She gathered her clothes, threw them on, and drove away. Mabel and Dipper, on the other hand, grabbed their things but didn’t bother to dress before they began to walk home in the moonlight.
“You know,” Mabel said, “it’s not too early to start thinking about what we’re doing for our fourteenth birthday party. I’m thinking another orgy, but with some goats in the mix.”
“Now that you mention it,” Dipper replied, “I’m pretty curious about fucking a goat. But I don’t think I want to wait ‘til August to try it.”
“No worries, Bro-Bro. I’ll get Gompers to bring his sister over tomorrow.”
“Thanks, Mabel.”
“Hey, what are sisters for?”
“Definitely not that,” Dipper replied with a smile. “But who cares?”
“Not me!” Mabel piped gleefully. Then she took her brother’s hand. “Wanna go home and fuck one more time? It’ll be more fun with, you know, free will.”
“You know I do. You want it up the butt?”
“Yeah. And call me some names this time, like ‘dirty little ass-whore.’ I think I’d like that.”
“Can do.”
- - -
Many thanks to Eh Steve for beta-reading, and thank you for reading!
If you'd like to see some author notes about this story, you can find them in the review response thread here: https://www2.adult-fanfiction.org/forum/topic/72230-review-responses-for-depravity-falls-gravity-falls/
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Depravity Falls