FSE

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"So whose is bigger? Come on. It's not a tough question."

Max couldn't believe he had gotten himself into this position. Or, rather, he could, but it still seemed absurd to him: Erika's paws gripped his shoulders from behind while her breasts very deliberately pushed up against the back of his head, wrapping her in his sister's familiar heat and scent, while she guided him forward to look down at this view sprawled out in front of them. The twins had the house to themselves again this weekend, and as they enjoyed doing, they had decided to celebrate and enjoy themselves with a round of drinks.

So the wild dog could feel that, too, swirling up around his thoughts, muddying the processes a bit. Nowhere near as far as he had gone last time, but still far enough: he stifled a small burp, wet his lips, leaned forward... and spread his paw out among the bared bellyfur of the family dog, pale wheat-gold curling up around his fingers, warm and soft and slightly coarse. Down further, one of Erika's paws slipping from his shoulder to make sure he kept moving, over the little pinpoint nubs of Mara's nipples only halfway hidden under her coat, further and further, until...

Until her heat simmered up and around him as well, the humid warmth of her full, intact, plump canine sex twitching, jiggling just half an inch beneath his palm. The feral looked up at him expectantly, eyes bright, tail swaying across the carpet where the twins had chosen to play their little game.

"Max..." Erika cooed in his ear. "Don't get distracted, now. You landed on truth. So I want you to tell me the truth, of whether hers is bigger, or mine is."

Already his pants were tight and his mind reeling, and he hadn't even touched either of them yet. Max bit his lip, took a breath, thought he could taste the somewhat-familiar sting of canine arousal on the air, dropped his paw further, and finally pressed his palm in against the soft, squishy, damp meat of Mara's spade, the feral reflexively kicking a leg at the sensation when he did so. Loose and jiggly, warm and succulent, he could easily wrap his fingers around the protruding weight and squeeze, could let it fill his paw, smear across his fingers, start to soak his fur as the lips pressed open to reveal the slick, wet meat inside.

He compared it against what he remembered...

"Hers," he answered with a sigh, and dropped his paw away. The dog's mouth fell open, tongue lolling out, and she looked up at him with a question in her eyes. "Just a little bigger."

He hated saying it, but it was truth or dare. Erika remained silent beside him for a second and then sighed.

"...Yeah," she agreed, to his surprise. "Just a little bit. But d'you want me to put mine next to hers so you can compare?"

Max paused, slightly wet paw still held halfway between himself and the dog before them. It was so, so hard to resist bringing that to his muzzle and taking a sniff.

"Or..." Erika slid her paw in along his arm, entwined her fingers with his, squeezed into an embrace, and guided him forward again. Mara's tail began wagging all over again. "I'll smooch 'em together, mine against hers, and you can hotdog your dick in between."

That had certainly been one of the thoughts on his mind. When Max tried to speak, he found that he couldn't. "Maybe, uh... maybe later."

"What? Pussying out now? Oh, wow, she is big, isn't she?" Once again Erika had pressed his paw in against Mara's revealed spade, much to the dog's delight. Where Max's palm squished in against the center, Erika's fingers teased at the rim, poking and prodding where sleek flesh protruded from the bed of short, soft, slightly damp fur, her thumb reaching down to trace over the wrinkles of the feral's puckered tailhole, also twitching and clenching in rhythm. "You know what's next, don't you?"

"What?"

"Taste test. You've had mine often enough to be able to identify it blind." Now his sister returned her paws to his shoulders and gave a gentle nudge forward, leaving his paw gripping loosely around feral dog spade. "Get in there. I'll even hold off on taking pictures 'til next time, if it'll make you comfortable."

But still he hesitated. Mara certainly wanted it: her wagging had increased in pace and intensity the longer they touched her, and now that he had drawn away again she looked up at him with that eager expression once more, and seemed to try to wiggle her lower body closer to him. It was one thing to suck on his sister's spade in a public bathroom stall at the mall; it was wholly another to do the same to the family dog, a feral, who-

"Okay, fine." Erika slipped down beside him, nudging him aside with her body, and reached to readjust the relaxing dog to face her more fully. Mara wagged even more energetically. "I'll do it for you. Watch and learn, chump."

"I'm not a-"

But already she had gone for it. Max had barely had time to make room for Erika kneeling beside him before the other wild dog bent forward, sprawling slowly out across the carpet as she went so that she then lay down propped halfway up on one elbow, head diving down in between the feral's spread legs. He watched, enraptured, at the way she first touched her nose to the dog's belly, then nuzzled down to sniff at the slick, supple mound of flesh, then gave one quick lick along the side - it jiggled - and thought about it; then a second, and a third directly across the center; and a fourth, slipping between the plump lips; and a fifth, even deeper; and then her eyes drifted shut and she pressed lips to lips, the sound of thick, wet slurping and sloshing dripping out from the bare quarter-inch of space between her mouth and the dog's sex as she dug her tongue deeper, slurping up across Mara's slickness, before that distance closed entirely.

Beside him his sister shifted her body, a gentle moan dripping out from where her mouth cupped around the feral German shepherd's plump spade. Every time she parted her lips Max could see the slick, silken flesh held inside, mushing and shaping around her tongue, dripping with saliva as well as the natural slickness of Mara's arousal; the dog squirmed and wagged until Erika had to grip the base of her tail in a paw and hold it still, thumbpad pressing right up against her tailhole puckering now with greater speed and intensity, while her other paw slid down beneath the waist of her pants.

There she focused for a moment longer, lips pursed, muzzle forward, audibly suckling away between the dog's hind legs, until she pulled back with a soft pop. Thick strands of juice hung between her lips and the feral spade and, a little breathless, Erika turned to her brother with a grin.

"There," she said, a bit frazzled. "See? Not so bad. Your turn. C'mon, Mara - up."

A quick few pats to the rump excited the dog further, and she bustled to follow the order. Within another few seconds of repositioning and wagging Max found himself kneeling down with his head forward, staring right at her presented tailhole and now saliva-smeared sex hanging down, full and heavy, swollen with arousal, dripping with more than just his sister's saliva.

Max still hesitated. "So I... just..."

"Yeah." Erika sat back, sighed with relief when she popped the button of her fly free, and swiftly drew the zipper down. "You've done it a hundred times before."

"Well, yeah, but this is-"

"Oh, come on," and then the familiar sensation of his sister's paw gripping the back of his head coaxed him forward. Max's nose tingled with the scent of intact canine sex, rich and juicy so similar to his sister's musk, with an odd overhanging metallic touch that reminded him somewhat of wet rust.

Like that wet dog smell, he thought distantly, and then - his lips squished against Mara's spade, and his nose brushed her tailhole, and next thing he knew he had folded his tongue out and inside of her. Then he licked, and lapped, and licked again, fully hard in his pants, squirming with the delight and enjoyment of the act: the wild dog sighed through his nose, felt her velvet pucker squeeze against him, and dug deeper and deeper, as though he were eating a single-serve pudding pack without a spoon.

It sounds about the same, too, he thought, ears naturally pitching forward. Her warmth and slickness spread out across his lips, already dripping down his chin; she tasted quite similar to Erika as well, yet still with that distinct note of something different that coated his tongue and throat, seeming to sizzle at his throat and belly when he swallowed. He paused there, took a moment to catch his breath - away from the dog's lifted tail, though Erika had taken over keeping it hiked - then looked down at his target here in front of him, warm black-leather skin parting open around glistening pink interior meat swollen with excitement.

The shepherd looked back at him, ears up, eyes bright, mouth open, waiting for him to continue. Leave it up to Erika to take that first step for him, but now Max wondered why he had ever hesitated: he cupped the dog's heft in his paw and gave a squeeze from both sides, wet flesh sputtering gently outwards with the contact, and leaned in to slurp and suck directly at those revealed inner walls, gladly letting her silky wetness coat his skin and fur.

Delight shivering through him, he tilted his muzzle slightly to one side, eyes once more fluttering shut. Each time he scooped his tongue deep into the dog it felt as though he could continue pushing further, luscious wet velvet parting and reshaping around him; he swallowed again and again, throat slimy with the juice of her feral arousal, each inhalation both tasting and smelling of rich canine musk. Gradually he became aware of a warm weight atop his head, shifting, lurching every now and then; Max opened his eyes again and looked to see that Erika had taken her place above him, her eyes closed as she repeated the process now against and inside Mara's tailhole, eagerly dragging her tongue across puckered folds, swirling around the overlapping center, poking in, sucking at the flashes of wet pink flesh that occasionally poked through.

Leaning over on top of him, breasts yet again pushing against the back of his head, Max wobbled in place until Erika steadied him with a paw on his shoulder. He reached up to caress it in his own, now having to keep his eyes halfway open for the slight dizziness from the booze tonight; once more he pulled back and swallowed, then leaned in to lap across Mara's heat, finally getting into the rhythm of what Erika had dared him to do.

Wait, he thought, I got Truth, not Dare. And she didn't dare me at all. She just-

_ _

-slid her other paw in along his chest, then neck, then chin, and tilted him up and away from his point of focus. A thick rope of stickiness slopped down across his chin, with Max reflexively flicking his tongue out to lap it off; Erika beat him there, though, dragging her tongue across his chin, continuing up to his lips, swirling up into his mouth and inside, her lips quickly, firmly coming in against his own. Surprised, he swallowed again, and soon felt her continue in towards the back of his throat, trying to find his tongue and wrestle against it; he gladly complied, smearing the slimy slickness back against her, welcoming the warmth of her breath and drool against himself. His sister moaned out into his mouth as she pushed her weight more fully atop him, tilting him away from the dog's backside and back down to the floor; the world briefly swirled around him, but still her tongue pushed into his mouth, her lips and muzzle tasting and smelling both of canine heat overlaid with the gentle bitterness of Mara's tailhole, flowing out across his own lips where Erika nipped and licked and suckled and slurped.

Eventually she pulled back out of the kiss, swallowed, licked her lips, and dove back in for another, now holding Max's arms pinned to the floor above his head, her legs between his own - and, he noticed, her pants and underwear no longer on her body.

"So that's how you eat pussy?" she panted, and swallowed again. Still Mara wagged her tail, looking back at the twins and wondering when she would get her next turn.

Max blinked. "You should know! I've only ever had you to practice on."

"Sure, but I've never seen it from that angle before."

"...And?"

"And..." She reached over and smoothly, easily sank her thumb inside the shepherd up to the knuckle. The root of the digit shifted as she moved it around; Mara shuddered with delight and squatted down a little bit, tail hiking further up. "Seems like she likes it as much as I do. You wanna spin again?"

"Isn't it your turn?"

"Is it, now?" Erika nipped her brother's lower lip between her tip and then lowered herself down, sitting firmly in his lap. She grinded her hips from one side to the other. "I choose dare."

"You can't - do - ah..."

"Come on, Max. I'm waiting..."