Lewd Pinecest

Mystery shack: night

Twins' bedroom

Dipper Pines is in his bed deeply engrossed by the third journal, as he reads it flash light in hand. Mabel, in her own bed, disapprovingly looks over at her brother, with her arms crossed over her knees and her head resting on her arms. "Mabel" sais Dipper, "did you know that the natural predator of the Zombie-Kitten is the Ogre-Dwarf?" "Eeeehhh... Dipper, don’t you think it’s about time to put that book away? Reading in the dark is bad for your eyes you know." replies Mabel , with a small smile blossoming on her face. "It’s ok, I have a flash light; and besides this journal could contain the answers to the biggest mysteries in town." says Dipper. "Well then maybe you could come over here and show me." Mabel says, as the tip of her tongue runs across her lips while she leans back slightly. Dipper doesn’t even look up from the journal to see this. "I don’t wanna loose my spot on the page" says Dipper, "That’s ok, I'll come over there then" replies Mabel with a voice that might indicate a stuffy nose.

She gets up and walks over to Dipper's bed, and positions herself inbetween Dipper and the Journal, facing the Journal, so that she is almost sitting on Dipper's lap. Dipper nervously clears his throat, "Uh Mabel, wouldn’t you rather sit next to me?" Mabel begins to slowly and gently rub her petite bum on dippers crotch, through her night gown, and Dipper's underwear. Up. Down. Up. Down. Ever so slowly. With Dipper's boyhood, against his will, enlarging slightly more with each of his sister's strokes. "What? No." She replies, as she looks over her shoulder, with a deceptive look of innocence on her face. She grabs some of her hair and runs it under Dipper's nose, similar to a cat's tail, allowing the reluctant brother to smell her hair.  "This way we can both read the journal together" She claims, as the motion of her hips becomes more rapid and aggressive. "Mabel, please stop!" Dipper exclaims as his voice begins to crack.

"Stop what?" Mabel asks with a slightly taunting tone in her voice as she uses her tiny hands to grab Dipper's now fully erect schnauzer through his underwear, lifts up her floppy disk nightgown, revealing a pink & purple pair of striped panties with a cute little bow on the front, bends her brother's erection down, and places it under her panties. So that Dipper's Bishop is bent horizontally, pushing up at her cooch, albeit through two layers of fabric (ie Mabel's panties, and Dipper's underwear). She continues moving back and forth at the same rhythm, rubbing her privates on the top side of her brother's inflatable life raft. The moisture of her panties now fully visible. She bites her lip as she begins rubbing faster. Dipper's pre-cum stains the tip of his tighty whities. The bodily fluids of each twin is now wetting both of their undergarments. Some of Dipper's cum is on his sister’s panties; some of Mabel's giny-juice is on her brothers underwear. Mabel begins rubbing her baby-maker on Dip's uncomfortably swollen penis even faster. The bed is now riketing. "Mabel, no, I'm gonna burst!" pleads Dipper as he drops his flash light to the ground. The light emitted from the torch, races across different areas of the room as the tool rolls around. "Don't worry bro, it's almost over" She reassures her twin as she places her little hands on the bottom of his Junior. Her hands are too small to wrap around his Bilbo Baggins. Each hand only covers a small fraction of the circumference of Dip's man-meat. She begins excitedly rubbing the underside of his Johnson, while she continues to stroke the top with her flower at the same rate. Dipper can no longer hold back. He kicks the journal away to prevent it from being stained, as he explodes is his undies. Mabel climbs off of her brother. Dipper is now lying back with his arms spread wide apart. He is breathing through his mouth, with his eyes gaping wide open. Mabel walks back to her bed with a satisfied smirk on her face. She gets under the covers and rests her head on the pillow.

"Go to sleep Dipper."