Amelioreit would never explicitly admit it, but she adored her brother. Far more than was healthy, And that adoration ebbed onto Big Mac, especially during the times the stallions got together and palled around. It made her so happy seeing her nerd of a brother interacting with the athletic farmer, and it made her want to touch herself.

Which is what she was doing right this second on the couch of their old parent's house in Canterlot. Her hand placed between her thighs and middle finger carefully making tight revolutions around her clit, mashing it against her crotch, spinning, and flicking.

Watching her brother and coltfriend get along made her strangely wet, which was something she didn't deny to either of the equally depraved stallions in her life. Her jaw hung open just barely as she ground her crotch into her hand – or was it her hand into her crotch? Hard to tell at this point as she swept her free hand through her luxurious locks of amethyst, the same color and style, just longer, as her brother's unkempt curly mane. Her eyes bored a hole into the two of them, taking it right in like she was soaking up the sun's rays.

Amelio's brother was clad in a feminine outfit that made her want to coo like toward a kitten. Dressed in a forest green sundress with violet snakes patterned over it, and an equally violet mantle that hung over his shoulders, clipped together at the front with a golden pin in the shape of a gorse flower. On his legs were a pair of horizontally striped, purple and green thigh high stockings that clung to his thighs. He was busy squatting over Mac's face, colt cunt firmly planted against his lips so hard the puffy ponut was deformed slightly.

Amelio found it strange, yet erotic, that her coltfriend was so open to expressing an interest in the same sex with her brother, and found it even more arousing that her brother was shameless enough to be open to it, especially right in front of her while her back was arching forward in ecstasy every time pussy grime shlicked over her flingers, staining them with sticky water. A dribbling fluid that Big Mac could attest tasted like sweet nectar.

The mare loved it when Mac told her how much he loved her taste, even if the only way she showed it was to call him a 'good girl.'

Mac was busy eating out Fearei's tight little asshole, prepping it for the fucking of a lifetime as Fear's twisted, coiled tail draped over his forehead, Mac's lips puckering up and smooching against it incessantly, before sliding out his tongue and twirling it around the swollen sphincter, teasing it and washing over it with his powerful tongue. Occasionally folding up and shoving it in, hitting the feminine stallion's prostate above him.

Amelio loved how her brother's glowing sapphire eyes, as bright and shimmering as Canopus' light, and as tranquil as an endless pond, lit up every time that little button inside of his love canal was struck. There was always a certain life and 'oof' that penetrated his stout muzzle whenever the tip swept across.

Fear's cock, not nearly as massive as Mac's, but still just as regal with a royal ebony hue, dark as black licorice, pulsated and pressed into the hem of his sundress. All as Fear gripped the bottom tight with his hands, agitatedly fingering the fabric as that tongue continued to probe his insides and make him whinny to the ceiling, eyelids occasionally falling shut, then fluttering. Now and then his face twisted up in glee, one eye falling at half mast and the other wide with surprise, jaw hanging open.

Mac's tongue didn't stop. Relentlessly sugar-coating his asshole and digging in deep. It made Fear's muscle wink, the hearty ponut dilating, the wrinkles that dove toward the center smoothing out for a singular moment as the bubblegum pink interior was revealed, before it snapped shut like a camera shutter and contracted inward on itself like it was giving a kiss. Every time that tongue twisted around in his guts, Fear's guts twisted back, sinking down around the bright appendage, which just increased the sense of utter violation that left Fear's cock, firmer than Mac's due to lack of size, nearly vibrating with pleasure, the pressure on his prostate only heightening and making his insides burn with bliss.

Fear finally came off of Mac's face, without cumming, standing tall with his legs shaking under him violently, his cock flopping down between his legs as it was released.

Amelio bit her lower lip rather hard, her herbivorous teeth nearly crushing it. Her and her brother might never be together – it was frowned on nowadays to appear to keep unicorn bloodlines pure – but at least she had moments like this where she could watch her two favorite stallions debase themselves for her entertainment. Recreating with each other in such a lewd, passionate dance.

Mac stood up as well, as little saliva stringing between his mouth and Fear's excessively lubed up tailhole, before reaching for his marefriend's brother, who was 4'6” compared to his 6'3”. Fear only came up to the bottom of Mac's chest, which made it so much easier for Mac to reach around him, grab him by the pecs, and lift him into the air with an uproarious 'whoa' from the smaller of the two. Fear's feet dangled under him, toes spreading causing the socks to web outward, the smaller stallion's face frantic, eyes bulging out as he was hoisted into the air, hands gripping under his armpits a moment later, and then descending hard and fast.

Too fast!

Fear felt it coming with his empathy before he realized what was going on.

With one sharp yank Fear was skewered on Mac's cock, going down all the way to the medial ring and stretching the smaller stallion out so hard he nearly came on impact, his eyes squeezing shut, entire body freezing up, completely paralyzed. His body quivered all over, his asshole clenched down so tightly on Mac's cock the larger stallion almost came on command. It was a moment as Mac held Fear on his fuck rod, turning Fear into a princess on a tower, his stomach... oh Celestia. Fear looked down at himself and saw his stomach was bulging obscenely. He lowered a hand to it, groping the protuberance.

Mac felt the fingers over the flesh and grunted. “Eeyup.” That single word was all Fear needed to know that this was very real.

Almost too real for words.

Fear almost passed out from cock shock in that single moment, his body creeping with cold under his dark gray fur, the primary source of heat coming from that lava-like dick stuck up his ass, Fear's legs spread hard and fast in a sitting position.

Mac let go of Fear's armpits, causing the smaller stallion to sink downward a bit.

Amelio was close to her orgasm as she watched her coltfriend penetrate her brother, her needy ministrations against her cunt, palm flat against it, hastening to an absurd speed.

Fear's eyes rolled into the back of his head as Mac's hands gripped Fear's thighs, the powerful fingers leaving dents where they pressed into flesh, and pulled them up high, nearly against his chest. The motion of his legs bending and hamstrings stretching made him whinny with pleasure, the pressure on his prostate only increasing. “Fuck me Mac! Fuck me with your giant cum hose! Leave me a quivering mass of nerves on the floor! Do it!”

Mac didn't hesitate any longer, slowly gyrating Fear's body up and down on his cock lifting up, yanking down, dragging up, and dropping. Repeatedly stretching open his tailhole like he desired.

Fear's face was one of ecstasy, one eye spasming, his jaw jerking, and pupils rolled into the back of his head. He felt like his sister felt in that moment – they could feel each others' pleasure.

Amelio cooed. “There we go big girl, fuck him raw.”

Mac quickened his pace, proceeding to thrust his hips into Fear's loins until his medial ring was popping into that colt cunt and spreading it wide to the point Fear was sure he pulled a muscle down there, pain easing through the nerves as well as pleasure. The larger stallion was a little surprised he hadn't cum early, but it was probably due to the lack of mind games. He was loving how Fear's love tunnel rippled around his cock with every shank though.

After a moment Mac leaned forward, dropping Fear onto the couch next to Amelio, and railing him against it, holding onto his hips like love handles, shunting into his piping with his oversized cock. Fear would be left gaping for a little while by the time Mac was done wrecking his ass. Pumping his hips into that onahole time and time again like a piston, forcing Fear to grunt, neigh, and whinny animalistically from the sheer sensual torment he was undergoing, on the cusp of climax just like his partner.

Amelio was the first to orgasm, her guts seizing up and squishing together inside of her abdomen rather pleasantly, her legs trembling, toes curling and spreading, before a second later her snatch spasmed and released a torrential stream of feminine brine. It squirted long and hard, lasting for seconds upon seconds. Amelio's body rocked back and forth, shaking like she was having a seizure, one eye dimming and the other deviating to the side, her face a nasty snarl of pleasure as she ruined the carpet with her ejaculations, a steady stream of femcum that lasted for at least a minute, her head swimming and her legs sore from tensing up so hard.

The next to orgasm was Fear, even more of a hair trigger than Mac usually was. Meanwhile the room was basked in the scent of pheromones and sex, filling the trio's lungs and bleeding into their circulatory system, seeping into their brains and tainting them. Fear felt a natural born fire at the base of his cock, an uncomfortable yearning traveling up his hot rod and making his orgasm all the sweeter as he erupted with virile strands of stringy nut slime that soaked into the couch cushions. Amelio felt a yearning of her own, though it was more like a void in the depths of her womb, warmth radiating outward from her cunt like she couldn't get enough of a reaming, the nerves buzzing and making her mindlessly massage her snatch.

Lights were flicking on in their heads like they'd never experienced before, every orgasm more potent and intense than the last. Fear's asshole squelched down around Mac's cock during his orgasm, which fired off the larger stallion. Mac speared Fear one final time, getting as deep as he could, taking him for all he was worth, and shooting his load so hard Fear's entire body melted from the sensation of steaming hot dick milk pouring into his love canal. Fear felt every single shot from Mac's package with every second, ropes and ribbons of congenital genital fluid spewing into him like raw sewage, sclorching into him incessantly, sliding off his walls, congealing in his stomach, and some of it blowing back out of his ass, down Mac's thighs, and pooling on the ground between his feet, getting all over the carpet.

They'd need a shampooer for that. But one thing at a time.

Fear and Mac continued trickling inordinate amounts of seed, Mac into Fear's depths, and Fear all over the emerald cushions. If Fear had found that load in his egg pouch he'd be intimate with the feeling of pregnancy within a few weeks. All of it felt like magma inside of him, and his hypersensitive cock just kept swabbing along the couch from Mac's continued bucking in order to milk himself of every last drop.

Mac finally reached the end of his orgasm, his face forming an ahegao once more, still and nearly lifeless, as he eventually leaned forward and fell on top of Fear, crushing his body against the couch with his passed out body, all while the larger stallion's cock continued to ooze out cum until it was just a lame burble.

“Ughgghhghg,” was all Fear could say in the moment, his jaw hanging open but not yet unconscious, just fading in and out of awareness.

Brother and sister were left as twitchy messes, occasionally jerking to the side, their jaws spasming from neurotic bliss. Their bodies screaming at them for mercy. Heads ringing from shellshock like air raid sirens.

Everything spun around them, all three of them smiling like idiots, eyes glassed over.

Author's Note

Please review what you enjoyed and didn't enjoy so I can hone my craft!