Little Sisters Big Butt Ch 01

Author's note: This is a work of fiction. All characters are eighteen years or older. Anal sex is a major theme in this story, so you might want to consider reading something else if you're not into that sort of stuff. Don't expect realism and you won't be disappointed when you don't find it! Enjoy!

*****

As the last traces of his afterglow faded away, Tyler slumped back against the pillow and exhaled deeply. Lying on one side of him on the bed was his laptop, which he had already shut off, while on the other was the towel he had just used to clean up his cum-covered abdomen and his big, still chubby boner.

"I should probably wash this thing..." Tyler groaned to himself as he folded the spunk-soaked cloth and put it back in the lowest drawer of his nightstand. It could still be useful for a couple more times, or once at least, Tyler reasoned, knowing full well that he would jack off again later. But until then, he had more pressing matters to attend to.

As if on cue, his sister's silvery voice rang out from outside, calling Tyler back from his musings and making him turn toward the window to gaze down into the backyard.

"Tyler! Come on, Ty! I need you to do my back!"

As always, the mere sight of his little sister brought a peaceful smile to Tyler's lips and filled him with a sense of quiet joy that nothing and nobody could ever quite match. Still, that wasn't his only reaction. Tiny and curvy and effortlessly beautiful, wearing nothing but a skimpy blue bikini under the scorching afternoon sun, Michelle was walking barefoot across the deck and alongside the pool. Her long light brown hair was pulled up in a ponytail that swished side to side with her every graceful movement as she headed to the recliners placed in the shade of the patio.

Michelle's bikini showcased her voluptuous albeit petite figure magnificently, and Tyler was immediately so enthralled by his sister's undeniable sexiness that his breathing accelerated while his freshly milked cock already started stiffening with renewed arousal. As it had been the case for months, Tyler's gaze couldn't help but stray from Michelle's super cute face and roam lower, pausing briefly to admire the generous fullness of her large bikini-clad boobs only to then proceed swiftly lower down her curvy silhouette until his eyes reached their favorite target: his sister's fantastic bubble-butt.

It was roundest, plumpest, most beautiful ass imaginable, protruding magnificently from Michelle's back and jiggling mouth-wateringly with her every step. It was the ass of a goddess, the dream booty of every hot-blooded rump lover. Ample and curvaceous, Michelle's buttcheeks were clearly no match for the flimsy material of her bikini thong, whose strings enhanced the majestic fullness of her juicy globes by biting into her swaying hips while the deep, luscious crack of her ass swallowed the light triangle of cloth meant to 'cover' her big butt in the sexiest possible manner. Just the image of that flawless heart-shaped booty suggested a feel of pillowy smoothness and meaty softness to the touch, while its persistent wiggling and shaking undulations irresistibly beckoned the onlooker to move closer to it, or at the very least to stare at it really hard.

As he drank in the stunning perfection of his little sister's glorious bubble-butt for the umpteenth time, Tyler couldn't help but feel flushed and dizzy and horny all over again, even though he had just jerked off. He truly loved that luscious ass, almost as much as he loved the girl it belonged to. He had dreamed of that juicy booty every night and masturbated to mental images of it every day for months now, busting massive loads every time, just like he had done mere moments before.

Even though his sister's beautiful ass was Tyler's hottest, wettest and most unachievable dream, he didn't really feel guilt about it somehow, since he considered his adoration for Michelle's callipygian rump as on of the many aspects of his deep-seated, genuine love for her. Besides, Tyler didn't seriously hope to make his forbidden butt-centric fantasies come true: just being near that masterpiece among asses all the time was enough for him. Well, kind of...

Tyler's eyes were still avidly drinking in the bouncy roundness of Michelle's booty when she suddenly turned around to look over her shoulder, gazing right up toward his window. As soon as her bright green eyes met his, the corners of Michelle's gorgeous lips turned up in a beaming smile and she raised a hand to wave at her big brother while holding up a bottle of sunscreen lotion with the other.

"Ty, come on down! I'll get sunburned if you don't help me out here... Please, Ty, hurry! My big butt really needs you!" Michelle yelled at him, giggling as she sat on a recliner and lay down on her side, accentuating the curve of her spectacular rump, meanwhile patting the cushion beside her, inviting Tyler to join her.

Eagerly nodding and smiling back at his sister, Tyler shook himself off his momentary ass-staring trance and jumped to his feet. Within moments, he kicked off his bunched up pants and boxers, put on a pair of swimming trunks and dashed out of his room as fast as possible, heading downstairs to be with Michelle.

*****

As far back as either of them could remember, Tyler and Michelle had always been very close. Beside being brother and sister and fairly close in age, they genuinely liked each other from the get go and enjoyed one another's company, which, as they learned much to their surprise while growing up, wasn't necessarily the case among all siblings. Then again, not all siblings went through the kind of stuff that Michelle and Tyler had to face growing up.

The death of their father when they were toddlers was certainly a big factor in bringing Tyler and Michelle closer, as was the fact that they spent a lot of time together when they were little kids while their mother Ellie was at work and had to leave them with a babysitter. An even bigger element in the consolidation of their sibling bond was the fact that, when Tyler was eight and Michelle was seven, he got an extremely serious case of pneumonia that almost cost him his life. Sick, pale and on the verge of death for weeks, Tyler didn't really retain much of that nightmarish childhood experience, except for the unique sense of comfort given him by the constant presence of Michelle at his bedside. Terrified to lose her big brother, Michelle tried to stay with Tyler as much as she was allowed to all through his illness, and even later on, once he was finally out of the woods and back home on his way to complete recovery, she barely left him for a moment.

Potentially tragic as that event had been, it was a positive turning point in Tyler and Michelle's young lives. It was then that Tyler started getting interested in sports and fitness and being as healthy as possible, and it was at that time that he started to get into swimming, which would soon grow to be one of his greatest passions. In truth, Tyler didn't gravitate toward sports just because he wanted to get strong and never feel weak and helpless in the future: mostly, he focused on improving his health because he didn't want to see Michelle worry about him ever again.

Tyler had been truly touched by the inconsolable despair he had noticed in his sweet little sis's face when she thought he was going to die, and he hated the idea that he had caused her that sort of pain. More than ever before, Tyler was positively stunned by the sense of joy and warmth radiating from each one of Michelle's frequent hugs and he rejoiced in the constant beaming smiles she gifted him. Seeing his sister so glad to have him by her side made Tyler happier than anything in the world, giving him a clear sense of how important he was to Michelle and confirming how crucial a role she had in his life. Because of that, Tyler swore to himself that he would never do anything that might hurt Michelle or make her sad or worried, ever.

For her part, if during her big brother's sickness Michelle had been terrified by the thought of losing him, she came out of that horrible experience with a newborn fascination for the mysterious inner workings of the human body, which translated into a fascination for medicine, biology and science in general. Egged on by those new interests and by the natural curiosity of her bright mind, Michelle became a straight A's student, achieving particularly great scholastic results in any class relating to science.

Of course, because Tyler had spent the better part of a school year either in the hospital with pneumonia or at home recovering, he ended up being held back. Still, even that academic setback turned out to be a blessing in disguise, as it meant that from that moment on Tyler and Michelle would be in the same classes.

That helped a lot during their adolescence, which they spent moving very frequently from city to city because of their mother's work. Switching schools and losing friends all the time wasn't exactly fun for Tyler and Michelle, but neither of them ever blamed their mom for it. They knew how much she loved them and how hard she had always worked to provide for them, giving up on most aspects of her personal life to focus only on her career and on being with the two of them whenever she could. Never putting down roots wasn't too much of a problem for Tyler and Michelle though, because they always had each other. In fact, over the years, while their mother steadily climbed the corporate ladder in her company and they kept moving from place to place all over the country, the bond between Michelle and Tyler kept growing stronger and more multifaceted.

Puberty was a weird time, of course, but the siblings rode it out together by joking and chatting and always being there for each other, which allowed them to navigate the changes they were going through with relative ease. Still, by the time their senior year in high school rolled around, with Michelle being eighteen and Tyler nineteen, the undercurrent of new sensations flowing back and forth between them underneath the surface of their usual day-to-day complicity had reached an all time high in intensity.

Over the years, Tyler had developed into a tall, broad-shouldered, dark-haired young man, with chiseled pecs, well-defined abs and a winning smile. Despite his calm and unassuming demeanor, his lean and muscular swimmer's body, along with his piercing gray eyes and his handsome face, made Tyler extremely attractive to any and all the girls around him, Michelle included. Having always loved the sense of security and protection she got from being held in her big brother's embrace, Michelle now found herself literally melting every time she hugged Tyler's sculpted frame. Tall and strong and nicer than anybody else she had ever met, he was Michelle's personal gentle giant, whose muscled arms were always there to hold her and against whose powerful chest she could always snuggle and feel totally safe. But that wasn't all.

With her hormones raging wild and her young horny pussy itching for some attention almost constantly, Michelle found herself fantasizing about her big brother in ways that went way beyond simple feelings of affection, tenderness or even a chaste platonic crush. Ever since she had started masturbating, the mental scenarios that flashed before Michelle's closed eyes as she circled her budding clit and brought herself to climax were unfailingly focused on Tyler. In truth, the place he occupied in her thoughts was so special and dear to her and so thoroughly imbued with love that Michelle never really looked at any other boy quite in the same way she looked at her adored big brother.

More often than not, when they cuddled on her bed at night to watch some show on her laptop or snuggled on the couch in front of the TV, Michelle would rub her thighs together to somehow stimulate her juicy clit while her head rested on Tyler's broad chest and his powerful arms were wrapped around her petite frame. Unfailingly, Michelle would build her arousal up to such a critical boiling point that, after she had planted her usual goodnight smooch on Tyler's lips and they had retired to their respective bedrooms, she only had to give her engorged love button a few nectar-squishy rubs to be overwhelmed by a huge, long-denied climax that left her mouth slack and panting while her wet pussy dripped with juices and her ringing ears echoed with her beloved brother's name.

For his part, Tyler was just as enamored with his sister's newly blossomed voluptuousness as she was with his sculpted swimmer's body. On top of always having been adorably cute and pleasant to be around thanks to her affectionate and upbeat personality, Michelle had emerged from puberty with a gorgeous hourglass figure that Tyler simply couldn't stop looking at. Her full, heavy DD cup tits looked even bigger and more delicious on her petite and girlishly svelte frame, but what really made Tyler crazy with horniness was his little sis's magnificently round, beautifully plump masterpiece of an ass.

Huge and bouncy and impossible not to ogle, Michelle's epic booty had appeared almost out of nowhere, blooming late like the rest of her sexy body and somehow catching even her by surprise. Still, whenever Michelle voiced her insecurities or perplexities about her own newfound lusciousness, Tyler was always very quick and firm in reassuring his sister that she was beautiful, for real, and yes, so was her big juicy ass as well. In truth, Tyler loved it when Michelle got a bit self-conscious about her body and particularly about her plump bubble-butt, because her moments of self-doubt gave him the perfect excuse to stare openly at her majestic rump, assessing it and drinking in its glorious curvaceousness, while being actually invited to do so instead of having to sneak glances or stare at it with his mouth watering whenever Michelle had her back to him.

One time as they watched TV snuggled on the couch, after Michelle had jokingly berated her huge ass for the umpteenth time, pouting about the fact that she would need tits at least a couple of sizes bigger to match her 'big silly butt', Tyler got somewhat carried away in his effort to convince his little sister that her sweet booty was a masterpiece and deserved nothing but devoted praise. Grabbing Michelle gently by her slim shoulders to make sure she was looking him right in the eyes, Tyler spoke with a mix of vibrant enthusiasm and unwavering conviction as he enunciated his ultimate homage to his sister's heart-shaped rump.

"Listen to me, Mimi: your ass in fantastic. It really is. It's the best ass I've ever seen, in life and in porn, hands down. It's thicker than Alexis Texas's, plumper than Jada Stevens's, curvier than Anikka Albrite's and jigglier than Mandy Muse's. It beats Jynx Maze's in roundness, Bella Bellz's in bounciness, and AJ Applegate's in juiciness. You have the best ass ever, sis, I'm not even kidding you. And it looks so fucking beautiful. It's just insane how hot you are, Mimi."

"Wow, Ty... Thanks..." Michelle exhaled in reply, blinking and blushing a bit, genuinely awed by that unexpected, weirdly touching and clearly sincere ode to her big butt. Then, giggling and winking at her comically serious big brother, she added: "You know, I only recognized half of those pornstars you mentioned... You're gonna have to send me a few links, Ty, I need to check for myself and kind of make sure of your sources, so to speak!"

Those words remained suspended in the air for a mere second before a burst of laughter erupted from Tyler's mouth, matching the irrepressible fit of giggles that overtook Michelle. Still, once the tension-breaking hilarity had faded, Tyler simply shrugged and nodded at Michelle, flashing her a complicit grin. Later, he did send his sister the links she had only half-jokingly asked for, much to her naughty delight.

Understandably, Tyler wasn't the only guy affected by Michelle's fresh and unassuming beauty, nor the only one whose head turned at the sight of her spellbinding bubble-butt. After years of never having been hit on by any boy in school, Michelle suddenly found herself getting invited to parties or asked out on dates all the time. Still, much like her stud brother had done all through his high school career whenever a girl asked him out, Michelle always rejected her potential suitors. In truth, she didn't care about anybody's attentions except her brother's, nor did she feel like being intimate with some guy she didn't feel truly connected to or understood by, which only really happened with Tyler. Unlike her brother though, who tended to be casually dismissive in those situations, Michelle always tried to be nice when she turned down the boys who asked her out, and she usually accepted the party invites she got, as long as her big brother could tag along too.

Soon enough, even though girls still looked dreamily at Tyler's tall muscular figure and boys lustfully ogled Michelle's large gravity-defying tits and big bouncy ass all the time, their fellow seniors tagged the newly transferred siblings as 'the hot little nerd' and her inseparable bodyguard 'the big silent jock', and everybody simply accepted them for what they were: a couple of good-looking weirdos who cared nothing about belonging to any clique or group. Still, the siblings did have some redeeming qualities that everyone appreciated, what with Tyler being the star of the school's swimming team and Michelle being a brilliant mathlete and the leader of the debate team. In a way, given their deep involvement in their respective activities, it didn't seem too strange that Michelle and Tyler should be so single-mindedly focused on academics and sports respectively, without much interest left for dating and relationships.

In truth though, the siblings were way more interested in exploring sexuality than their schoolmates imagined, but neither Michelle nor Tyler cared to get into that sort of stuff with anyone except each other.

As if subscribing to a tacit agreement, Michelle and Tyler never openly discussed the subject of their mutual and ever growing physical attraction, but they did implicitly make it known by never getting romantically involved with anybody else, nor showing any interest in doing so. Still, there were some more explicit signs and indications nonetheless, messages that the siblings sent back and forth to somehow express the powerful and theoretically forbidden desires they felt at the mere sight of one another.

Well aware of her brother's adoring looks, believing he spoke from the heart whenever he praised her beauty or reassured her that her big juicy ass was 'the essence of pure awesomeness', Michelle started to wear nothing but boy shorts and tank tops with no bra around the house, thus showcasing her majestic booty and her jiggly boobs in the most enticing way for her brother alone. Her hugs became more frequent and intense, her affectionate smooches on Tyler's lips became longer, and when she took a shower in their shared bathroom she often would call him in with all sorts of lame excuses, just to offer him peeks of gorgeous nakedness.

For his part, emboldened by his little sis's persistent yet somehow innocent flirtatiousness, Tyler began showering Michelle with compliments even outside of her joking bouts of self-deprecation toward her big butt. To further emphasize his appreciation of her sweet round rump, he started playfully slapping her shorts-clad asscheeks or pinching the protruding roundness of her booty whenever she walked in front of him, which always made Michelle giggle with naughty joy. When they snuggled together at night watching a show, Michelle never failed to press her heavy jugs against Tyler's muscular chest so that he could feel the generous heft of her melons and the engorged stiffness of her nipples, to which Tyler responded by wrapping his powerful arms tighter around her petite frame and letting the hand that rested on the pillowy plumpness of her buttcheeks start to caress and massage those fabulously round globes, causing Michelle to purr like a sexy little kitten as she cuddled more cozily in his embrace.