To Gabby’s ultimate shock and joy, after that first unexpected switch Tyler began systematically penetrating his sister’s holes alternating back and forth just like he had just done, first slamming his fat sausage all the way into Michelle’s squelching pussy, thus getting it dripping wet with her gushing nectar from tip to root, and then proceeding to cram his freshly relubed pole balls-deep into her twitching and ever-horny asshole. Filling Michelle’s forbidden passage with increasing ease and growing speed at every girlcum-greased pass when he wasn’t vigorously stuffing her nectar-drooling slit, Tyler coaxed such an ego-boosting chorus of rapturous squeals and trembling moans from his adored little sister that her orgasmic vocalizations alone managed to feed his pleasure, fueling him with as much lust as he got from the snug warmth of her dick-squeezing anus and the soaking wet softness of her cozy vaginal sheath.
Indeed, the obscene hotness of switching back and forth from one delicious hole to the other was getting the siblings even hornier for each other than they already were, overcharging them with a new and gloriously sinful aphrodisiac flavor, heightening Tyler’s desire to plow both of his sister’s sweet tight holes while setting Michelle’s very being on fire with unprecedented lust. Soon enough, the incessant state of gushing climax affecting Michelle’s dripping pussy had provided so much lubrication to Tyler’s monstercock and he had transferred such a quantity of her copious nectar deep into her constricting rectum that her anal walls were as slick as if he had actually prepped her backdoor the way he usually did, coating her warm chute with globs of lube applied by his ass-prodding fingers. The speed and force and fluid smoothness with which he could now push into her anus testified to the effectiveness of his newly discovered method of greasing up her bootyhole, but still Tyler decided to keep up his back and forth routine for a little longer, enjoying the different feel and equal satisfaction that he got from plunging alternatingly into his sister’s pussy and asshole in ever more rapid succession. Besides, he had to make sure that Michelle was thoroughly lubricated for what he had in mind next.
Heady, lust-fogged minutes went by as Tyler kept stuffing Michelle’s pussy and asshole in ever faster alternation, switching holes with a swiftness and precision that made up for the fact that he only treated either opening to one powerful balls-deep thrust every time before cramming his schlong into the other needy orifice. Eventually though, as much as he was enjoying that lewd back and forth routine, Tyler reached the limit of his self-control, and simply had to give his sister the kind of unrestrained, all out pounding that would culminate in his achingly swollen monstercock pumping another torrential load of cum inside her. And, since her unprotected pussy was still too risky a receptacle for him to bathe in his potent seed, it would have to be Michelle’s sweet little asshole that he was going to creampie.
Sure that her anal passage was as drenched with slippery girlcum as it could possibly get and deciding that her steamy chute was more than well-adjusted to take his girthy length based on how easily he was now plunging his whole massive dong inside the deepest, snuggest depths of her rectum with his every butt-stretching thrust, Tyler finally ended his lewd ass-to-pussy-to-ass routine and chose to focus his raging lust solely on Michelle’s fabulously plump booty. Drinking in the glorious sight of his orgasm-drunk sister’s big wobbling boobs and letting the image of her adorable pleasure-glowing face etch itself in his memory, Tyler growled in anticipation as he extracted his throbbing hard schlong from Michelle’s pussy one last time. Then, instead of jamming it right away into her widened nectar-oily anus, he grabbed her voluptuous little frame and flipped her over on her tummy while also pulling her closer to him, easily maneuvering her limp, surrendered body until her chest was pressed on the bed and her knees were resting on the floor, her ample tits thus bulging underneath her while her ass was nicely tilted up and out, perfectly offered to his huge, mightily flexing erection.
In that new position, Michelle’s beautiful ass was showcased in all its brain-numbing flawlessness, the round bouncy curves of her buttcheeks protruding so charmingly and jiggling so mouthwateringly that Tyler had to pause for a second to glory in that image of true callipygian perfection. It was just a second though, not even enough time to afford a drooling, cross-eyed Michelle the chance to gather her wits and realize fully what had just happened, then Tyler was hunching over her big upturned rump, his hands already grabbing onto her fleshy, pillowy buns as his glans pressed its way into her winking, needy hineyhole and easily slipped in.
A powerful, lust-imbued thrust was all it took for Tyler to slot himself balls-deep inside Michelle’s tight forbidden passage, a satisfied growl escaping his mouth in time with the giggly gasp that his sister let out as her foggy mind reconstructed what was happening, her only certainty being that her brother’s monstercock was jammed to the hilt inside her needy asshole and he was sodomizing her from behind, which was all she needed to know and more than enough to keep her orgasms rolling on. And roll on they did.
Without a moment’s hesitation, Tyler started hammering away at his sister’s majestic bubble-butt, pounding her delicious nectar-slick bootyhole with strong ass-cramming thrusts that were as rapid as they were deep. Never letting more than half of his veiny shaft slide out of Michelle’s rippling rectum, Tyler made sure to always push his fat precum-leaking glans into the deepest, warmest recesses of her narrow chute, filling her anus to the limit and setting a furious tempo right away. Indeed, his reckless sodomizing frenzy created a clapping symphony of meaty, rapid-fire impacts whose unmistakably sexy beat resounded in the room loud and clear even over his own bestial grunts of ass-plundering delight and his sister’s delirious, incessant squeals of anal climax.
Beyond shock and way beyond keeping track of her own voyeuristic orgasms, Gabby witnessed that supreme display of Tyler’s all-encompassing buttlust in awed stupor, the sight of his enormous girlcum-lathered sausage pumping at blurred speed and with virile energy in and out of Michelle’s tautly dilated bootyhole burning itself indelibly in the brunette’s brain, certainly to be conjured up in her every future self-pleasuring session from then on. Well aware that the clit-pinching fingers of her right hand and the three sphincter-jamming digits of her left could never even begin to match the pleasure that Michelle and Tyler were sharing during their visceral assfuck, Gabby didn’t even try to emulate the desperate rump-riding fury that he was unleashing on his sister’s heart-shaped, gorgeously round bubble-butt. Gabby knew that there simply was no way she could make herself cum like Michelle was cumming right there and then, with her asshole stuffed to the limit with brotherly dickmeat and her pussy overflowing with so much nectar that her thighs were completely shiny and streaked with more and more sweet rivulets. Still, the brunette loved what she was seeing, more than she ever thought she would.