Chapter 11
Pacifica flailed her legs frantically as Mabel held her in place, her body completely on display to Dipper's throbbing manhood.
"Wait, Mabel, not yet!" Pacifica squealed, straining to reach her nightstand. "I have to- ugh!"
"What's wrong, Pacifica?" Mabel asked, "I thought you wanted to- whoa, WHOA!
With a grunt, Pacifica powered forward, causing Mabel to topple backwards onto the bed. Quickly, Pacifica reached into her nightstand drawer, pulling out a small square wrapper.
"I was hoping something like this would happen, so I went out and bought these."
Pacifica handed the condom to Dipper.
"If you want to ride this roller-coaster, you have to have a ticket!" Pacifica smirked.
Dipper smiled, tearing the condom wrapper and rolling the latex cover over his erect member.
"I'm ready," Dipper said, looking down at his lover. "Are you?"
"I've never been more ready for anything in my life!" Pacifica smiled.
Dipper inched forward, lining up the head of his penis with Pacifica's sex, already dripping with anticipation.
"Just . . . be gentle, okay?"
"I will," Dipper said, looking deep into Pacifica's eyes.
"I love you."
Dipper pushed forward; the warm, soft caress of his lover enveloping his shaft as the two became one. Pacifica felt some discomfort, but it quickly subsided. Before long, the young heiress was moaning in pure rapture; her head thrown backwards, her face slack. Pacifica wrapped her legs around her lover's waist-side, pulling him in close, until his entire length was pressed deep inside her. The rhythm of their movement propelled the two lovers to heights of pleasure they had never felt before, and all the while, Pacifica was enthralled. There were simply no words to express the joy Pacifica felt at that moment, to finally be united with the man she loved.
"Oh Dipper, this is amazing! I love you!"
"I love you, too, Pacifica. I've never felt as good as I do right now!"
Dipper thrusted faster and deeper, and with each thrust, Pacifica's lustful cravings intensified. It was not long before the young lady was moaning like an animal, lost in a sea of endorphins as if in some sort of trance.
"Don't stop, Dipper! Give it to me! Take me! Make me yours! Oh God, Dipper!" Pacifica growled, "get in there deep and FUCK Mmmmmm!"
Suddenly, Pacifica's lust-fulled rant was cut short, as Mabel began straddling her face, silencing the young woman with the wet folds of her vulva.
"Mmmmm, you've got quite a mouth on you," Mabel said, grinding her loins into Pacifica's face. "About time we put it to work!"
"Mmmmmmm" Pacifica moaned as her tongue began to dance upon Mabel's flesh.
With that, the Pines twins began to ravage Pacifica's body, using her mouth and sex for their own purposes. Dipper quickened his pace, thrusting deeper and deeper inside Pacifica's ever moisting hole as Mabel, groping Pacifica's breasts to keep balance, continued to press her weight onto the heiress' waiting tongue, which took great joy in exploring every corner of Mabel's hot and eager folds.
"Oh god, Dipper!" Mabel squealed. "She really knows what she's doing. This feels incredible!"
"I know, right! She's clamping down so tight on me right now. It feels so-"
In an instant, Dipper and Mabel locked eyes with one another. All at once, they became aware of their situation. The two of them, completely naked, their sweaty bodies thrusting away, were suddenly engulfed with shameful desire. Pacifica had become a conduit for their lust as the two began to stare at one another, their bodies growing hot with forbidden, taboo thoughts.
They were so close to one another, their faces only a few inches apart. Just a little more, and-
Suddenly, Pacifica jerked upwards, her entire body trembling to a forceful climax. As she moaned in delight, Mabel fell forward, reaching out and grabbing Dipper's shoulders for support. The twin siblings stared deep into each other's eyes with barely an inch between them, their bodies on the edge of their own earth-shattering climaxes.
They kissed.
It was all that was needed to send the two siblings over the edge, their entire being racked with wave after wave of white-hot sin as their probing tongues moaned out simultaneous orgasms. With a last gasp, the two collapsed onto the bed, finally giving Pacifica a chance to catch her breath as the three of them basked in the joy of afterglow.
" . . . Wow!"
"I know. That was . . . that was amazing!" Dipper gasped.
"Yeah," Mabel responded, breathing heavily. She looked towards her brother, "but that last part was soooo wrong!"
"Yeah, I know."
"Huh?" Pacifica turned her head from one twin to the other. "What do you mean by 'last part?' Did I do something wrong?"
"What? NO! No, you were . . . amazing!" Mabel smiled. "Dipper and I just . . . you know what, just forget it."
"Are you sure?"
"Trust me, Pacifica," Dipper interrupted. "You were perfect."
"Thank you." Pacifica said, relaxing between her two new lovers, who quickly began groping her exhausted and thoroughly satisfied body."
"You were pretty great yourselves."