Dipper continued out into the great Forest of Gravity Falls, taking in the fresh air and the ever-present pine scent. To any normal tourist, it might seem like the most ideal place for rest in relaxation. But not to Dipper. Entrusted with 3, he’s begun to uncover the secrets of Gravity Falls, ranging from queen-loving gnomes to the Northwest cover-up.
	Settling under a shady pine oak, Dipper opened up to the first page of the book, reading the introductory he has read countless of times.
June 18 It's hard to believe it's been six years since I began researching the strange and wondrous secrets of Gravity Falls, Oregon. In all my travels, never have I observed so many curious things! Gravity Falls is indeed a geographical oddity. There are creatures that defined the word "bizzarre" and magic and potions.

Dipper mindlessly turned the pages, thoughts wondering on the pieces of the puzzle. What exactly is up with this whole town? Why all this mystery? He closed the book and looked through the leaves and branches of the forest thicket, watching the sunlight dance through with beams.
Enraptured by the sudden beauty, Dipper did not notice the girl silently watching him from the bushes. She was a good distance away for him to not notice the noise she’s made, and is completely unaware of her presence. The girl readied to pounce.
Dipper was suddenly knocked on his chest by a considerable force of nature, and was slammed against the tree, knocking the wind out of him. Catching his breath, he focused on the figure now currently covering his entire body, slumped over. Bright pink caught his eye and he immediately knew who it was in that favorite sweater of hers.
Mabel looked up through her strands of hair and threw her arms up. “Surprise!” she yelled. It echoed through the forest, sending some rather peaceful birds in a hurried flight. “Happy birthday, silly ole’ brother o’ mine! Now what exactly are you doing out here in this boring old forest when there’s delicious cake waiting for you at the sh-“
Mabel slapped her hands on her mouth, shock rising through her face. “Oh, no! The surprise!” she exclaimed.  “Maybe it’s not such a surprise anymore, is it?” Dipper sneered. Worriment shrouded her. His sister pressed her face to his. He could smell the faint scent of strawberries. “Act surprise so Grunkle Stan isn’t disappointed. He worked hard to scam that cake off of some poor smuck, you know.”
Dipper pushed her away, but she was still straddled onto him, leaving him trapped between her and the tree. “Besides, I have a present for you. Involving wood. And carving. Of your precious face. On to the wood.”
Dipper raised an eyebrow at her. “You were never good at hiding surprises, Mabel.” She laughed. “I still have one gift for you,” Mabel responded. She leaned closed to his ear and whispered, “And I think you’ll really like it.”
Her brother shivered as he heard her say those words. She slid down his body and settled near his abdomen. Slowly, she unzipped his pants, ruffling through his underwear. When Dipper felt her cold hands touch him, he shivered again. Mabel’s hands pulled it out, thick and warm. He was already hard from the straddling, feeling the lust fill his every being.
	Mabel began slowly, a smooth, easy action that drove Dipper insane with pleasure. He had not known how much experience she had on her, but she was amazing. Her small delicate hands worked on him, feeling around, touching attentively here and there. She would look into her eyes and see her filled with lust herself.
As he grew close, Mabel stop and began to work with her mouth, just as he had watched carefully whenever she ate a lollipop. Her tongue felt even more amazing, Hell, her entire mouth was fucking great. He had feared that the braces would interfere in a painful way, but again there was that skill of hers, that just seemed to appear out of nowhere. Mabel began to work faster and faster until Dipper felt he had reached the point, and released into her mouth. She swallowed without protest and after wiping her mouth, drew closer to Dipper, where their lips touched. He held her carefully, as if any sort of jerk or sudden movement would break the moment. They continued to kiss until she stopped, arms resting on his shoulders, panting. Mabel moved her hand down, feeling for Dipper. She accommodated herself, until she could feel him pressing up against her. Once again, she hugged him for support, and began to move her hips back and forth. Dipper could feel her rubbing against him, and soon joined with her in rhythm.
He began to hear his sister moan through her muffled head buried in Dipper’s shoulder. Cute and short at first, they soon turned into full moans of pleasure. He could feel them both reaching their climax’s, and went faster. The lust, pleasure, it all ran through him and then through her, as the sweet release racked both their bodies. Gasping, Dipper lifted Mabel’s skirt and saw the mess he had made. She would certainly need a change of clothes after this.