Dipper broke the kiss and saw a familiar gleam in Mabel’s eyes. “Are you thinking what I’m thinking?”
Mabel nodded and lifted Dipper by his butt. “I hope so, cuz this is happening,” she said with barely restrained glee as she carried her little brother over to her bed and unceremoniously dropped him.
As Mabel frantically pulled off her sweater, Dipper worked with equal urgency to undress himself. The pair kept stealing glances at one another’s bodies. Mabel eyed her brother’s increasingly exposed skin with a growing hunger in her belly and a fire in her loins. For preds, lust and hunger were intimately intertwined, so craving her brother inside her had multiple meanings. Likewise, Dipper could hardly look away from Mabel’s feminine assets. She was a solid c-cup, and he knew from firsthand experience how firm and squeezy they were. Her butt was tight enough to bounce a quarter off of, which she’d made Dipper do several times because it always made her laugh.
Once they were naked, Mabel fixated on the boy on her bed, particularly his mouth-watering erection. “For me? You shouldn’t have,” she giggled as she fell to her knees between his legs. Putting her hands on his thighs, she licked her lips, and dropped her mouth down on his shaft. “Nom.”
Dipper’s meat pole instantly disappeared into his sister’s experienced mouth. His body tensed as he felt the warm wetness compress around his sensitive skin. Unsure of what else to do with his hands, he used one to pat Mabel’s head like she liked while the other supported him as he leaned back. “This never gets old,” Dipper strained to say as Mabel’s tongue swirled around the head and along the shaft. She knew all the best spots to drive him crazy, which she used to her advantage at every opportunity.
Mabel moaned around her mouthful. She’d swallowed all of Dipper countless times, and each part of him had its own flavor. His butt and face were nice, but her favorite was easily his sex tool. Prey tasted differently from regular food, and it was hard for predators to describe to those outside their little club. Dipper’s cock was salty from sweating in the summer heat, but the skin beneath had a natural sweetness that always got her hot. If she wasn’t careful, even running her tongue along the familiar texture of his hole puncher could cause her to prematurely orgasm… again. Wanting to avoid such embarrassment, she slowed her pace to more casually savor the sensations of her brother’s meat in her mouth.
“See, j-just like that,” Dipper stammered as he ran his fingers through her hair. “Don’t g-go for the big finish too soon. Take things nice and slow, only with dating.”
Mabel hummed her acknowledgment as her arms wrapped behind Dipper to hold his back and squeeze his butt. She loved the way he squeaked when she did that. However, rather than bobbing her head to build his climax, she sealed her lips around the base and suckled his stick like a lollipop. As much as she loved it when he came in her mouth, she wanted his full load to blast inside her cunt. She craved that feeling of gooey warmth filling her young womanhood, and as a pred, she usually got what she wanted.
Eventually, Mabel pulled off Dipper’s cock with a wet pop and stared up at him with lustful hunger. “Lie down,” she ordered, and he obediently complied. Mabel grinned as Dipper sat back and let his shaft glisten as it stood tall. “See, this is why you’re my favorite prey. You don’t make a fuss over the stupid stuff… usually. You know just what I need, and you give it to me.” She licked her lips as she set her knees to either side of his hips and positioned her glistening slit above his cock. Then, because she was Mabel, she held an imaginary radio and adjusted her voice like it was coming out of a speaker. “This is Mabel. Clearance granted to shove that load up my twat, over.”
Chuckling, Dipper mirrored her actions and said, “Clearance granted, over.”
Mabel set her hands on Dipper’s chest and lowered herself. She hissed when his tip kissed her vaginal lips, but she kept going. “Gawd, I love this!” she moaned as the head penetrated, slipping inside and stretching her vaginal walls so amazingly. “Of all the things I’ve shoved up my cooch, your dick’s easily my favorite,” she giggled.
Dipper also groaned as Mabel’s love tunnel enveloped his love handle. “Damn, did you get tighter?” he asked as she clenched around him.
“Hehe, who knows? My body can do all kinds of crazy things,” Mabel giggled, only for her eyes to roll to the back of her head when Dipper hilted inside. “Nnngh, yeah, that’s the stuff!”
Having already warmed up in her mouth, Dipper was impatient to get started. Although Mabel was stronger and heavier than him, he still had enough leverage to roll his hips and slide his cock across her sensitive walls. “My body does stuff, too. You like it?”
“Yeah, gimme your dipstick, bro-bro,” Mabel growled like a beast as she lifted her hips, only to drop them back down with a wet slap. She repeated the process of slow withdrawals and swift drops. Each time, her motions grew faster and faster as the impact sounds grew louder. “Aah! Haa! Fuck yeah! Give it to me, Dip-Dip! Paint my pussy white!”
“God, you feel amazing!” Dipper groaned. He’d started by holding onto her hips, but the more Mabel bounced, the more her bouncing melons hypnotized him. Unable to restrain himself, he reached out and grabbed them both. His grip wasn’t too rough on the sensitive yet succulent orbs of boob flesh, but Mabel still cried out in bliss as her hard nipples dug into her brother’s palms.
Mabel was no pure maiden. As a pred, she liked to fuck preys before she ate them, or at least give them oral. Sometimes she fucked when the mood struck her and Dipper wasn’t around. She’d learned to make herself available to potential lovers whenever that happened. This was different than the flirting she’d been doing recently. When the mood struck at school, she’d bat her eyes at a teacher, invite him or her for a quickie, and then continue her day as normal. To say that she knew her way around the bedroom was an understatement. By contrast, flirting she’d started around the Shack was in pursuit of something more genuine. A romantic partner, an exclusive meal, or even a devoted pet. Whatever the term, it was a clear step above a few minutes in the closet or prey that was forgotten as soon as she pooped them out. For now, the most meaningful person in her life was her beloved brother, and she intended to express her gratitude by fucking his brains out.
To that end, Mabel grabbed Dipper’s shoulders and pulled him up until his face was wedged between her breasts. His hot breath tickling her sensitive skin felt fantastic, but it didn’t distract her from bouncing in his lap. Her tempo increased as she felt her insides tighten. Climax was imminent, and she couldn’t wait to feel her brother ejaculate inside her most sensitive hole. She just needed a little extra to push him over the edge, and she knew just what to do. “I hope this knocks me up.”
Dipper’s body seized up as he held onto Mabel for dear life. Slamming into her passage one last time, he erupted into his twin, filling her with every drop of jizz at his disposal. It was embarrassing how this line got him every time, and he wordlessly communicated his annoyance to Mabel. However, she just panted in her orgasmic hi and smiled even wider. Dipper knew that he couldn’t stop his sister from teasing him like this, but if it meant making love to the prettiest girl he knew, then he could live with it.
What next?
1 Mabel needs another dose of Dipper juice
2 Mabel’s tummy hungers for Dipper meat
3 Mabel is satisfied, and the kids head downstairs
4 What does Stan think about all this?
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