Chapter 3

Dipper woke up in a daze an hour later, sweat from the summer heat and the day's earlier events dotting his forehead. Yet, despite the workout he had just received, the young man felt a familiar stirring beneath his sheets, and he wasn't the only one who took notice.

"Mmmm, looks like someone is finally up. Oh, and you're awake, too!"

Dipper leaned over to find a familiar brunette staring back at him with a devious smirk on her face.

"Mabel?" asked Dipper.

The young lady paused for just a moment, then smiled.

"Hmm . . . Guess again, Dipper."

Slowly, the young man began to recall the day's events.

"Pacifica? You haven't switched back yet? Where's Mabel?"

"Calm down, Dipper." She laughed before clearing her throat. "Mabel . . . is fine."

She paused, as if lost for words. "You see . . . um . . . your sister felt the sudden need to . . . to go down to the store and get some snacks and sodas for us!"

"But, why?" asked Dipper. "We have plenty of snacks in the shack."

"Oh, well . . ." She stammered before recovering. "I think she just wanted to cause some mischief by prancing around in my body."

"Really?"

"Well, of course." She laughed. "You know Mabel, always causing trouble, always doing things she knows she . . . really shouldn't."

"And you're okay with that?" Dipper asked.

The young woman smiled. "Well, if it means I get some alone time with you, so be it."

Seductively, she sauntered onto the bed, crawling up until she was face to face with her beloved.

"Um . . . Pacifica?"

"Shh . . . Quickly, Dipper, before she gets back, let's . . . let's just do it!" She exclaimed. "Do it again, I mean, before your sister gets back."

Dipper froze. "Pacifica . . . Pacifica, I don't know–"

"Oh! What's the matter? Does your . . . BIG dipper need a little more . . . convincing!?" She said, trailing kisses from his neck, down his chest, and even lower still.

"Oh . . . Pacifica . . ."

"I thought I told you before," she said, her lips hovering just over the tip of his erect member. "Call me Mabel."

With that, the young lady engulfed his hard, throbbing member into her warm, wet mouth, sending a surge of heat and electricity through Dipper's body and into his brain. Dipper's spine stiffened, then went slack as feelings of intense pleasure washed over him.

"Oh! Pacifica . . ." he mouthed before correcting himself.

"Sorry . . . I mean . . . Oh, Mabel!"

He had never felt anything like this before. Sure, he had been sucked off by Pacifica plenty of times in the past, even while in Mabel's body, but this time was . . . different. It was as if she had become an entirely different person, filled with passion and ferocity, and so much wild abandonment, it overwhelmed Dipper's senses to the point that he nearly lost all control.

"Pacifica . . . Mabel . . . Pacifica . . . Wait! Stop!" Dipper shouted, causing the young woman to perk her head up in surprise."

"If you keep going like that," Dipper gasped, "I won't last another minute."

She smiled another devilish little smile. "Oh, is your sister's mouth suddenly too much for you?"

"Don't be gross, Pacifica!" Dipper scoffed.

She just laid there, chuckling to herself, before slowly moving up the length of his body.

"Well then, I guess we should cut to the chase, huh, Dipper?"

"Wait, What?" Dipper muttered as his lover positioned herself just inches above his throbbing manhood.

"Oh, this is going to be so good!" The young lady exclaimed as she slowly lowered her body.

"Wait! She could back any minute!" Dipper panicked.

"Exactly. That's why I . . . we need to do it while we still have some time."

"Pacifica–"

"I told you," she yelled as her pussy enveloped his cock, "call me . . . Oh God!" She cried as she rammed her body all the way to the hilt."

" . . . Call me Mabel."

Dipper tossed his head back in ecstasy as his lover moaned, taking his hands in hers and forcing them onto her heaving breasts.

"Squeeze them, Dipper!" She shouted. "Squeeze them hard!"

Dipper was happy to oblige, carefully kneading her soft breasts as her body bounced on his throbbing manhood.

"Harder!" She screamed. "Harder, damn it! Pinch my nipples!"

Dipper's hands moved over the young woman's pink and perky nipples, pinching and pulling them hard as a long, drawn out moan escaped from deep inside her body.

"THAT'S IT! That's what I like! Oh God! I've been waiting for this for so long!" She gasped. "I'm gonna cum. I'm gonna cum, Dipper! You're going to make me cum!"

Dipper was at his wits end. "Oh Pacif– I mean Mabel," he said, correcting himself. "I'm going to cum, too."

"Do it, Dipper! Cum in me!" She screamed, as her orgasm erupted.

"CUM INSIDE ME!"

"Oh God! Oh . . . Pacifica! . . . OH MABEL!"

With that, Dipper exploded inside his sister's body once more as his lover rode his orgasm to a second climax. Her eyes rolled back into their sockets as her body convulsed erratically on top of his, moaning with each involuntary spasm. Finally, exhausted from multiple, cascading orgasms, the young lady collapsed upon her lover's body; their tired, sweat-soaked forms melting into the mattress as they both struggled for breath.

"Oh, Pacifica!" Dipper moaned. "That was . . . That was amazing!"

"Yeah," She smiled. "I got to agree with you there. God, I love riding your big dipper!"

Dipper rolled his eyes and laughed. "Enough with the big dipper jokes already. Jeez!"

"Well, what do you expect with a nickname like Dipper?" She laughed.

"At least it's just a nickname." Dipper chuckled. "What kind of name is Pacifica Northwest, anyway?"

"Well, it's better than Mason." She smiled.

Dipper froze at those words. "What did you say?"

"Mason." She replied. "It's your real name, dummy!"

"How do you . . . I've never told you that!" said Dipper. "Hardly anyone knows my real name, except . . ."

"MABEL!" a voice shouted from just beyond the bedroom door. "I'm back, and I got the stuff you wanted. I still don't know why you made me go to the store across town. It took me forever. Is Dipper awake, yet?"

Pacifica walked through the door and saw the naked, sweat-soaked bodies of the Pines twins laying on the bed.

"Oh! Looks like you two have been busy!" The Northwest heiress exclaimed. "I can't believe you did it without me!"

Dipper's face went white with shock. "Wait! Pacifica? I thought . . ." Dipper looked back at the woman laying on his bed. "You mean, all this time, you were . . . you were . . .?"

"Whoops!" said Mabel. "Busted!"