Perved

Perved
by George Glass

Summary: Sequel to “Depravity Falls.” Still enjoying their second summer in Gravity Falls, the Pines twins find themselves remembering certain events of the previous summer rather differently.

 

Table of Contents
Chapter 1: Northwest Mansion Misremembered
Chapter 2: Big Dipper
Chapter 3: Roadside Seduction
Chapter 4: Boyz Crazier
Chapter 5: Deca-Dipper
Chapter 6: Cherry-Oke
Chapter 7: Body Swap (or, How the Other Half Fucks)
Chapter 8: A Pair of Ducks?

 

Chapter 1: Northwest Mansion Misremembered

Chapter Summary: Dipper discovers that he remembers the events of the big party at Northwest Manor two different ways—and his new memory features Pacifica very prominently.

- - -

It was a typical weekday night at the Mystery Shack. That is, Soos’ grandmother was fast asleep in her room, Soos was watching TV with Melody downstairs in the living room, and Dipper and Mabel were in their attic bedroom, fucking like rabbits.

“Oh…God…fuck…yes…” Mabel panted, her legs spread wide and her hands gripping Dipper’s ass to help him fuck her good and hard. “Right there…keep going…”

Dipper, on top of Mabel, was more than happy to keep going. This was their third fuck of the day, as they’d had a quickie in their room before breakfast and another in the stockroom during an afternoon break. But that wasn’t nearly enough sex for either of them. As quitting time approached, Dipper had begun to burn with lust at the thought of Mabel’s bare breasts—which had doubled in size in just the past two weeks, each one becoming a handful, at least for Dipper’s hands—pressed against his chest, and her increasingly broad hips thrusting up to meet his.

“Mabel…” Dipper grunted, “I’m getting…really…close…”

“Shoot it…in me…Bro-Bro…” Mabel gasped. Her cunt had been aching for her brother’s cock; like Mabel’s breasts, it was substantially larger than it had been two weeks ago, and the size of his cumloads had increased just as substantially. “You know…that always…makes…me cum…”

Dipper didn’t need any more encouragement than that. Pounding Mabel’s pussy as hard as he possibly could, he shouted, “NgggghhhhhAAAAH!” and shoved in deep to shoot a hot, thick load of seed straight up into his sister’s womb.

“YEEEEEEEEESSSS!” Mabel cried out, squeezing Dipper’s body with her arms and legs to ensure that her brother’s hot semen made it into her very deepest place.

After their climax, as they panted for breath, Dipper slowly pulled his cock out of Mabel. When some of his cum began to ooze out of her pussy, she reached down, scooped up a fingerful, and put it in her mouth. She swallowed, then grinned at Dipper.

“I love being a perv,” she sighed happily. “I don’t think I’d be half as relaxed if I wasn’t taking at least three loads of twincest cum every day. Especially since we’ve both got birth-control powers now.”

“It definitely helps me relax,” Dipper replied, lying down next to her. “Nothing calms me down like emptying my balls into you.”

Mabel giggled. “Careful, you’re gonna get me horny again.”

Smiling, Dipper replied, “Would that be so bad?”

Mabel grinned at him. “Nope!” Then she chuckled. “Even Pacifica thinks your stamina is amazing, and she’s a professional ho. I mean, only part-time, but still.”

Now it was Dipper’s turn to chuckle. “It’s kinda too bad that when we defeated Dee, we couldn’t split her essence between you, me, and Pacifica instead of just between the two of us. Being a super-horny perv would probably help Pacifica professionally.”

It had only been two weeks since the night Dee Pravitty—a younger cousin of Bill Cipher—had forced Dipper, Mabel, and Pacifica to throw an orgy that would give Dee ultimate power. Just when Dee thought she had won, Dipper and Mabel performed a ritual that split her spirit between them; this destroyed her consciousness but gave the twins her boundless lust, a process Dipper and Mabel referred to as “getting perved.”

Dozens of kids and teens had participated in the orgy, but only the twins and Pacifica knew what really happened. It seemed like everyone else didn’t remember it, or remembered it as a dream, or knew it really happened but dismissed it as just one of those things that happen in Gravity Falls and that people never speak of afterward. Especially not to their parents.

Thinking of Pacifica brought another memory back to Dipper’s mind: the night of the big annual party at Northwest Mansion, when Dipper first began to believe that maybe he and Pacifica could be friends. His eyes narrowed.

“Whaaaat…?” he murmured.

Mabel gave him an odd look and replied, “I didn’t say anything.”

Dipper blinked and looked at her. “Sorry, I meant ‘What’ as in ‘What the heck?’ Because…”

“Because what?”

“Because…This is gonna sound strange, but when I think about what happened at the party at Northwest Manor, I…I remember it two different ways.”

Curious, Mabel leaned toward him. “What, like, you remember it happening twice?”

“No, just once, but it’s like…Okay, remember those ‘Pick Your Own Path’ books Mom and Dad have from when they were kids? Where you can decide which of two things to do, and then you turn to one page or the other to see what happens? It’s kind of like that, except I’ve read both pages.”

Not sure she understood, Mabel said, “Okay, but one memory is the real one and one isn’t, right?”

“I think so, yeah.”

“So what happens in the fake one? How’s it different?”

“Well, it’s pretty different.”

***

It was the night before the Northwest family’s exclusive annual ball, and Dipper, Mabel, Candy, and Grenda were all in the Mystery Shack’s living room, watching local news coverage about the upcoming event. The three girls talked excitedly about the party, clearly all wishing they could go.

“Give me your life, Pacifica,” Candy pleaded weakly, her face pressed against the TV screen as it showed file footage of Pacifica winning the Miss Gravity Falls pageant.

“Guys,” Dipper said, “in case you’ve already forgotten, Pacifica Northwest is the worst.” 

There was a knock at the door. As Dipper went to answer it, he added, “And that’s not just jealousy talking; I’d say that to her face.”

He opened the door, and there stood Pacifica Northwest. She had feebly attempted to disguise herself in a trench coat, purple head scarf, and sunglasses, presumably because she didn’t like being seen in a place as “common” as the Mystery Shack.

“I need your help.” Pacifica said.

“You’re the worst,” Dipper replied, and shut the door in her face.

But Pacifica immediately knocked again. Dipper sighed and went outside to talk to her, closing the door behind him so as not to let in the bugs.

“Listen,” Pacifica said, “there’s something haunting Northwest Manor. If you can get rid of it and keep it from ruining the party, I’ll…I’ll let your weird sister and her weird friends come.”

Dipper raised his eyebrows, finding this offer not only surprising but strangely appealing. Not only would he be doing a nice thing for Mabel, Candy, and Grenda, but there was something delicious about the idea of dropping that crazy trio like a glitter-bomb into the middle of a houseful of snooty Northwests and their snooty guests. 

But before Dipper could agree, Pacifica raised the stakes further.

“And,” she went on, “I’ll give you something any boy in this town would kill to have.”

Dipper frowned. “Look, Pacifica, I don’t care how much money you can throw at me, I’m not-”

“I don’t mean money,” Pacifica cut in. “I mean this.”

She pulled open her trench coat, and Dipper’s eyes nearly fell out of his head. Underneath the coat, Pacifica was sporting an ensemble straight from the pages of the notoriously expensive Underglory catalog. Her demi bra not only fully exposed the top halves of her budding breasts but also let the upper curves of her pink nipples peek out from beneath the black lace. The matching black-lace panties were petite, revealing all but half an inch of Pacifica’s outer thighs and forming a tiny triangle between her legs. Farther down, Pacifica had on a pair of black-lace garters that held up black fishnet stockings.

Dipper had never seen anyone, let alone a girl his own age, wear anything like this in real life. Also, while he never would have admitted it, Dipper had on a few occasions imagined what Pacifica might look like under her clothes—and, as it turned out, the reality did not disappoint. Her body wasn’t especially curvy, but her adolescence was clearly underway. Yet her skin was flawless.

“If you get those ghosts out of my house,” Pacifica said, sweeping her hand down over her torso like a game-show hostess displaying a prize, “you can do anything you want with this body. For a whole night.”

Part of Dipper’s mind was falling all over itself trying to figure out how to react to the unexpectedness of this offer, the prospect of having sex for the first time, and of course seeing so much of Pacifica’s body—or any girl’s body, for that matter. Judging from his own past behavior, he would have expected to start stammering uncontrollably, make some excuse and fast-walk away, or just pass out. 

But another, bigger part of Dipper’s mind was unflustered. That part was just as pleased by the sight of Pacifica in her sexy lingerie and just as interested in having sex with her, but it didn’t see any reason to freak out over it. On the contrary, it knew that the best thing to do now was to play it cool.

“All right,” Dipper replied.

***

“Okay, hold on a sec,” Mabel interrupted. “Pacifica came to the Shack and, like, offered you her body? And wearing fancy under-stuff?”

“Well, that’s how I remember it,” Dipper replied.

Her brow furrowing, Mabel said, “But this was when she was still rich—way before she started working at the diner and banging truckers on the side. I mean, would she have acted like that back then?”

“All I know is what I remember,” Dipper said. “Or, fake-remember, or something. Now, can I keep telling the story?”

“Oh, definitely,” Mabel replied. “I’ve gotta know how this turns out.”

***

By and large, the events at the party transpired in the way they did in Dipper’s original memory: By letting all the townspeople into the mansion, Pacifica placated the vengeful lumberjack ghost, which allowed him to move on to whatever afterlife awaited him. But instead of Dipper and Pacifica joyfully tromping on the fine carpet in their muddy shoes, Pacifica grabbed Dipper’s hand.

“Let’s go up to my room,” she said. “Mom and Dad will be too busy freaking out about all the riff-raff in the house to notice we’re gone.”

Dipper hesitated. Having almost died a fiery death at the ghostly hands of the lumberjack, the slightly disoriented Dipper didn’t quite know why Pacifica, who had only grudgingly let him into her house, would want him to come to her room.

“Well,” Pacifica said impatiently, “do you want your reward or not?”

The memory of Pacifica in her lingerie flooded back into Dipper’s brain. “Uh, yeah, I, uh, I do.”

“Then come on.”

With his hand in hers, Dipper followed Pacifica to the rear of the mansion and up a set of stairs to the second floor. Proceeding down a long hallway, they passed some rooms that Dipper had thought only existed in a board game—a library, a billiard room, a conservatory—before they reached the doorway of Pacifica’s bedroom.

The room’s central feature was a large canopy bed with purple drapes and a lilac duvet. Pacifica closed the door behind them, took off her shoes, then turned her back to Dipper.

“Undo me?” she asked.

Dipper undid the row of buttons on the back of Pacifica’s seafoam-green dress. He was pleased to see a lacy black bra-strap beneath. Pacifica leaned back against him.

“Like we agreed,” she said, “you can do anything you want with this body tonight. So what’s it going to be?”

Suddenly feeling oddly confident, Dipper replied, “Well, the first thing I want to do with that body is strip it naked. But you’re welcome to do that for me.”

“Oh, I will. But I warn you; I’m a real tease. You might shoot in your tuxedo trousers before my panties hit the floor.”

“I’m willing to take that chance.”

Pacifica, still facing away from Dipper, took a couple of steps forward. Then she let her dress slide artfully down her body to form a seafoam-green pool on the floor. Underneath, she had on the same ensemble she had shown Dipper outside the Shack, but Dipper had only seen it from the front. Now, he appreciated for the first time how small, tight, and perfect her ass was, because those tiny little panties showed off almost all of it.

“Niiice,” he said, gazing at Pacifica’s sweet little backside.

“If you like these panties when they’re on my ass,” Pacifica teased, “you’re gonna like ‘em even better when they’re on the floor.”

Pacifica turned around, showing Dipper her half-naked body. The light in the room was better than the light outside the Mystery Shack, and now Dipper could really appreciate the little bit of curve in her waist and hips, and especially the perfect shell-pink of her nipples where they peeked out like little morning suns from beneath the horizon of the black demi bra.

“I see where your eyes have landed,” Pacifica said. She put her hands beneath her small breasts, lifting them just slightly, and said, “Wanna see the rest of these babies?”

“Oh yeah,” Dipper replied.

His gaze remained on Pacifica’s chest as the blonde girl reached behind her and undid the clasp of the demi bra. Then, slowly, she pulled the bra away, fully revealing her breasts. They were small, of course, Pacifica being only twelve, but they were cute and perky. Her nipples weren’t that small, though; each shell-pink areola covered almost half the surface area of her breast. Dipper guessed that Pacifica’s breasts would be a very nice size by the time puberty was done with her.

“You like?” Pacifica said.

“Oh yeah,” Dipper replied.

“Wait’ll you see what else I’ve got. But first…”

She slinked up to Dipper and pressed her body against his, such that he could feel the warmth and softness of her small breasts through his shirt. Then she kissed him, and Dipper found himself putting his arms around her. The skin of her back and sides was warm, soft, and smooth, and she smelled sweet and slightly floral.

Pacifica finished the kiss and smiled at Dipper a bit haughtily, like she knew he’d be impressed with how good it felt to kiss her. She wasn’t wrong.

“Wow,” Dipper said. “Your lips are softer than I knew lips could be.”

Pacifica’s haughty smile widened and replied, “Oh, you’re about to find out exactly how amazing my lips are. Just stand still.”

Maintaining eye contact with Dipper, the blonde girl slowly lowered herself to her knees in front of him. Then she put her hand directly on his crotch, her hand touching Dipper’s erection through the fabric of his tuxedo pants.

“Feels like somebody’s ready to go,” she said.

She unbuttoned Dipper’s fly, then slowly pulled down the zipper. Dipper, in preparing for this moment, had put on his best underwear: a pair of midnight-blue boxer shorts, which had been a gag birthday gift from an older female cousin. As it happened, the shorts had a generous vent in the front through which Pacifica could easily retrieve Dipper’s hard cock.

Pacifica wrapped her soft hand around the base of it, then gave the head a long, slow lick around its whole surface. When Dipper sighed with pleasure, Pacifica opened her mouth and took his cockhead inside.

***

“Wait wait wait,” Mabel interrupted, holding up her palms. “This was last year, so how did Pacifica already know how to do a blowjob? I kinda figured she learned that from Dee Pravitty when she became a ho.”

Dipper scratched his head beneath his hat. “Um, I…I can’t explain that. This memory doesn’t come with backstory.”

“Huh. Well, anyway, did you shoot in her mouth? Did she swallow?” She smiled evilly and added, “Did you make her swallow?”

Dipper sighed. “Just lemme tell the story, okay?”

“Okaaaaay.”

***

Pacifica’s eyes were now locked with Dipper’s as the kneeling girl moved her head forward and back, her soft lips massaging the length of the boy’s cock. Without even thinking about it, Dipper laid his hands on Pacifica’s blonde head as he moaned softly and continuously.

“Oh, God, Pacifica,” Dipper breathed, “this is incredible…”

Pacifica must have found those words encouraging, because she began bobbing her head a little faster. Dipper’s moans grew louder, and he went from merely resting his hands on her head to actually taking hold of it, although he did nothing to change or impede Pacifica’s movements.

Over the next two minutes, Pacifica gradually ramped up her speed even further until her blonde head was a blur—or at least, that was how Dipper imagined it, because his eyes were squeezed shut with the pleasure of Pacifica’s oral attentions. Now, he was using his arms to help her move her head because he couldn’t stand the thought of her tiring out and stopping.

“Pacifica,” he gasped, “I think…I think I’m gonna…”

If he’d expected her to stop, he’d been dead wrong. She grabbed his wrists with both hands and used the leverage to pump her head even faster on his cock.

“Pacifica, I- I- AAAAAH!”

The girl lunged her head forward one last time and swallowed again and again as Dipper came copiously in her mouth. Even when his ejaculation finally finished, she sucked rhythmically until she’d swallowed every drop of his seed. Then she pulled her head away and looked up at him, grinning open-mouthed.

“Ahhhh,” she said, like she had just drunk something refreshing. “That was really something. I never would have guessed you could shoot a load that big.”

“I don’t…think…I ever have…” Dipper panted. “That had to be…my personal best…”

As she stood up, Pacifica replied, “Well, it’s definitely mine. But now the question is-” she drew close to Dipper until her bare breasts were just grazing the front of his shirt, “-are we done, or have you got more in the tank?”

Despite having cum literally half a minute earlier, Pacifica’s sultry tone was already beginning to rekindle Dipper’s arousal. So he replied, “For you? I’ve got plenty more.”

“Oh yeah?” she replied with a sexy little giggle. “Let’s see.”

Keeping her eyes on Dipper, Pacifica turned sideways to him and bent forward a little. This not only showed off her bare bust in flattering profile but also drew Dipper’s eyes to her ass. Clad in those high-cut black-lace panties, it looked petite and tight and pretty much perfect as far as Dipper was concerned. And her legs looked dead sexy in those black-lace garters and fishnet stockings.

Just when Dipper thought Pacifica couldn’t look any hotter, she slowly bent forward and pushed her black panties down her thighs, revealing her perfect bubble butt in all its glory. Once the panties fell to Pacifica’s ankles, she straightened up and stepped out of them as she turned to face Dipper. He gawked at the sight of her in nothing but her fishnet stockings and her black garters, which by contrast emphasized her pink pussy and its little tuft of blonde hair.

“Soooo,” Pacifica said, “are you gonna make me be naked all by myself?”

Dipper saw no point in undressing slowly like Pacifica had; she had already seen the main thing he had to reveal. So he wasted no time stripping off his borrowed black suit, shoes, socks, and boxers. 

Not bothering to wait for Pacifica to make the next move, he closed the distance between them and kissed her. This time, his hand went down her bare back and cupped her equally bare ass—so firm yet soft, so smooth, so perfect. Pacifica pushed the tip of her tongue into his mouth, and he reciprocated with more than just the tip of his. He also fondled one of her breasts with one hand while moving the one on her ass around her creamy thigh to finger her pussy. Pacifica stepped her feet apart a bit to let him. Dipper felt his cock getting harder just as Pacifica broke off their kiss.

“Oooh,” Pacifica said breathily, “looks like there’s definitely more in the tank.” Then, leaning her head forward, she put her lips to his ear and murmured, “You wanna fuck?”

“Oh yeah,” Dipper answered breathlessly.

She led him over to her four-poster bed. It looked like it could sleep a family of four…gorillas.

“So,” Dipper said, “do you want me to wear, you know, a condom?”

Pacifica frowned scornfully. “Ugh, no, those things weird me out. It’s like putting a ghost costume on your dick. I’ll just swipe some of my mom’s Backup Plan pills.”

Dipper’s eyebrows lowered. “Do I want to know why a married woman keeps Backup Plan around?”

“Well, my dad got snipped years ago, but sometimes he and Mom like to do a little ‘swapping.’”

“I’m so sorry I asked,” Dipper blurted. Even so, he was glad about not having to worry about condoms, especially since he hadn’t even thought to get any.

“Now,” Pacifica said, her tone notably sexier, “let’s quit talking about my parents and get busy.”

She sat down on the edge of the bed, then scooted backward on it. Dipper got on the bed, too, and moved next to her. Then, feeling bold, he gently pushed her down onto her back and rolled on top of her. He felt her smooth legs open beneath him.

“I’ve got to admit,” Pacifica murmured, “sucking your dick got me pretty hot. So go ahead and put it in.”

Dipper reached down, lined up his cock with Pacifica’s entrance, and pushed. They both gave a long sigh of pleasure.

***

Mabel’s head swam with questions as she listened to Dipper tell this story. If this was supposed to have happened a year ago, how did Dipper and Pacifica already know how to fuck? Come to think of it, why did Pacifica have all that fancy underwear? Yes, she could have afforded it, but surely her parents—who presumably had been paying more attention to her back then—wouldn’t have let her buy something so adult. And, thinking of her parents, were they actually swingers like Pacifica said, or was that just another made-up part of Dipper’s weird non-memory?

It took some effort, but Mabel held her tongue. Because as much as she wanted to know the answers to these questions, she was even more eager to know what happened next.

***

Dipper and Pacifica moved together, his cock sliding in and out of her hot, tight preteen pussy. Her rhythmic breaths in his ear were loud and warm, and the movement of her body against his was the sexiest thing he could have imagined. 

“Dipper,” Pacifica moaned, “this feels so good…”

“So good…” Dipper breathed.

He was glad that Pacifica had taken the edge off with that blowjob, enabling him to keep a controlled pace and savor his first fuck. He really liked the way Pacifica’s perky little breasts felt against his chest, and the softness of her skin, and especially the tightness of her love-tunnel around his cock. So Dipper kept up a moderate pace for quite a while. Until Pacifica spoke. 

“Please…” she breathed, “You’re driving me crazy…Let’s go faster…”

“Works for me,” Dipper replied.

He fucked her faster, and Pacifica kept pace with him. She breathed faster and harder in his ear, the way that Dipper imagined she might breathe if she were riding a horse at a canter. It gave him a perverse thrill to think that Pacifica was now the one being ridden.

That thrill made him fuck her even faster. Pacifica eagerly reciprocated, and soon, they were bucking like mad, their movements eliciting rapid-fire squeaks even from Pacifica’s high-end bed.

“Oh fuck!” Pacifica cried. “Oh fuck oh fuck oh FUUUUUUUUCK!”

Pacifica came so hard that her arms and legs seized Dipper’s torso in a death grip, and her pussy seized his cock just as forcefully. The sensation was so powerful the Dipper cried out “YAAAAAH!” and shot what might have been the biggest load of his lifetime to date straight up into Pacifica’s body.

***

Wait, Mabel thought, Dipper and Pacifica are screaming their heads off, and nobody’s hearing them? The party wasn’t that loud. Ooooh, but I don’t want to interrupt Dipper to ask about that when we just got to the really good part. I guess I’ll have to suspend…that thing you suspend when you want to believe something that makes no sense.

***

When Pacifica loosened her grip on Dipper, the boy started to roll off her; but before he could complete the move, she scrambled out from under him and turned on her side, facing away from him as she panted for breath.

“Holy shit,” the blonde girl gasped.

Dipper, also panting, replied, “Yeah…that was…amazing…”

Pacifica didn’t reply, or even turn to look at him. Dipper had a guess as to why.

She’s embarrassed that I made her cum so hard, he thought. She doesn’t want me to think that she’s into me, even in a purely physical way.

Even so, Dipper had to admit to himself that he was into Pacifica in a physical way. Even though he’d just had the most powerful climax of his life, seeing Pacifica’s lovely, reclining preteen body from behind was already starting to rekindle his arousal. He thought about how it had just felt to fuck Pacifica and cum inside her, and thinking about that was like blowing on the embers of his excitement.

As casually as he could manage, Dipper said, “So, ready for more?”

“More?” Pacifica replied with audible disbelief. 

She turned over and looked at Dipper—first at his face, then at his crotch.

“How are you still hard?!” she cried.

“Well,” Dipper replied, “you did promise me your body for the whole night. And it’s a pretty great body.”

With an exasperated sigh that was clearly insincere, Pacifica said, “Fine, what do you want to do next?”

A sly grin came over Dipper’s face as he replied, “Well, I’ve been enjoying looking at that perfect ass of yours. So now, I wanna fuck it.”

Pacifica blinked. “Um, you mean you want to fuck my pussy from behind, right?”

Dipper’s grin widened. “Nope. I want that little pink butthole.”

“What?!” Pacifica blurted. Then, clearly trying to sound composed, she said, “Um, we can’t. I, uh, don’t have any lube.”

“No problem,” Dipper replied, going over to the chair where his jacket hung and reaching into one of the pockets. “I brought some.”

Pacifica looked at the tube in Dipper’s hand, which read, “EZ-Glide Personal Lubricant: Whether your needs are medical or shameful, EZ-Glide is the lube for you.”

“I, um, uh…” she stammered.

“Hey, you said I could do whatever I want with your body. A deal’s a deal.”

“Well…okay. But you have to take it slow!”

“Don’t worry, I’ll be gentle. Just get on all fours and show me that sweet pink hole of yours.”

Flushing red with embarrassment, Pacifica got up on her hands and knees in front of Dipper. Dipper ran his hand over the smooth skin of her soft yet toned ass.

“You really do have a great body,” he said.

“Yeah, yeah, just put it in my butt already,” Pacifica groused, clearly trying to mask her anxiety with anger, “so we can get this over with.”

Dipper squirted some lube into his hand, closed that hand around his cock, and moved it slowly down and up his shaft to ensure that his whole length was lubricated. Then he got on his knees behind Pacifica, used one hand to spread her perfect buns apart, and put the lube-glistening head of his cock against her little pink asshole.

“Here we go,” Dipper breathed.

Slowly, but with enough force to overcome the resistance of Pacifica’s tight hole, he pushed. The hole began to open.

“Nnnngh…” Pacifica groaned.

Her hole soon opened wide enough for Dipper’s cock to sink in. Pacifica’s tight anal ring gripped his cockhead and then his shaft, its grasp running slowly down his length as he went deeper and deeper.

Pacifica moaned, “God, that feels weird…”

“Wow,” Dipper breathed, “you’re so hot inside…”

He got all the way in, his pubis pressed against the top of her ass-split and his balls resting against her pussy. Then he pulled out very slowly, letting his glans pass through her tight ring before he pushed back in. He did this several times.

“Oooohhhh…” Pacifica moaned. “This still feels weird, but…keep going…”

Dipper increased his pace just a little. He continued going in balls-deep and then pulling most of the way out on each stroke, because he really liked the way her asshole was massaging the length of his cock. Plus, it turned him on to watch his cock disappear completely into Pacifica’s ass again and again.

“Oooh…yeah…” Pacifica breathed. “That’s…that’s nice…I like…how deep…it’s in me…”

“I like that too…” Dipper gasped. “A lot…”

He pumped her a little faster. Pacifica responded by moving her body forward and back to push her ass against his crotch each time.

“Oh yeah…” Dipper exhaled. “Yeah, that’s definitely…nice…”

“Oh…my God,” Pacifica panted. “I had…ohhh…no idea…this would feel…so good…”

Unlike during their previous fuck, Dipper felt no need to take his time. Much as he enjoyed the feeling of Pacifica’s tight rear hole massaging his cock, he was really looking forward to cumming in her ass. And given her reactions so far, Pacifica probably would like that, too. Besides, he no longer felt like he had to pace himself; all this was so exciting that he was pretty sure he would be good to go all night.

So Dipper didn’t take more than a few minutes to ramp up his speed to the point that his hips were smacking audibly against Pacifica’s bubble butt. Pacifica moaned and gasped continuously. Then, with lightning speed, she grabbed two of the ten or so pillows at the head of her bed and shoved them underneath her to support her torso, freeing up one hand to rub her clit while the other reached beneath her chest to fondle her own breast. The moaning and gasping got much louder, which turned Dipper on like crazy.

“Pacifica,” he gasped as he pounded her, “I’m…gonna…cum…up…your…ass…”

“Do it!” Pacifica cried. “Shoot it in my ass!”

“Here…it…COMES!” Dipper shouted. His hands gripped Pacifica’s hips tightly as he shot his load into her bowels.

“FUCK YEEEEESSSSSSS!” Pacifica cried, her asshole seizing Dipper’s cock almost as hard as her pussy had.

When Dipper pulled out of her hole, it remained open, his cum slowly oozing from it. Dipper couldn’t believe how sexy that looked. Then Pacifica turned over, and he was looking at her flushed, sweaty, fully nude body, which was pretty damn sexy, too.

After taking a minute to catch her breath, Pacifica said, “So, I suppose you want more?”

“Yup,” Dipper replied. “After we clean up, I want to put it in your mouth again.”

Pacifica couldn’t even hide her enthusiasm as she replied, “Oh, you haven’t even seen half my oral technique yet. You’re gonna cum your little peasant brains out.”

“Bring it on,” Dipper said with a grin.

***

“And that’s how it went,” Dipper said. “We fucked the whole night. I mean, there was one break around 3 AM for leftover petit fours, but besides that, solid fucking.”

“Wow,” Mabel replied. “Who’d have thought twelve-year-old you had that much endurance?”

“Well, I’m not sure he really did, since this memory obviously isn’t real. Oh, but let me tell you how it ends.”

***

After what felt like their hundredth fuck of the night, Dipper lay down next to Pacifica and glanced at the windows. It was starting to grow light outside.

“Thanks for a great night, Pacifica,” he said. “You really held up your end of the deal.”

Pacifica raised her head and looked at him. 

“Dipper, the truth is…”

“What?”

Looking down at the surface of the bed, Pacifica sighed, then said, “I know you would have handled the ghost thing even if I’d just promised to let your sister and her friends come to the party. Because that’s the kind of brother you are. I didn’t need to add sex as a reward on top of that.”

Dipper’s forehead crinkled. “So…why did you?”

“Because…Because that way, I could have sex with you without having to admit I wanted to.”

“Oh,” Dipper replied. Then, after thinking about it for a second, he said, “Oh.” 

Now it was his turn to sigh and look away. 

“I get it,” he said. “Honestly, you making it transactional made it a lot easier for me to say yes. Because then, it was just you paying me back for something, and it didn’t have to mean anything more than that.”

Now Pacifica looked at him. “So, can we just pretend that the sex was never part of the deal? That we did it because we wanted to?”

Dipper smiled at her and said, “I won’t have to pretend.”

***

“So that’s what I remember,” Dipper said to Mabel. “But it’s not like remembering a dream, where the details are all foggy and mixed up. It’s like remembering something that actually happened—even though I know it didn’t.”

“It’s still really cool,” Mabel replied. “My favorite part was when you fucked Pacifica in the ass.”

“That might be my favorite part, too. But do you remember that night the same way I do?”

“Well, I wasn’t with you and Pacifica for most of what happened at the mansion, so I don’t remember that part any differently. But I do remember you coming back to the Shack at the end of the night, so that doesn’t work with your memory.”

“Yeah, I remember coming back that night, too,” Dipper replied. “I just also remember it the other way now. Pretty weird, huh?”

“Yeah. But you know what’s even weirder?” 

“What?”

Mabel tapped her index finger against her temple and replied, “I’ve got a memory like that, too."