Sibling Bonding Volume 1, Chapter 1 - Taking a chance.
Written by HumbleHeretic
"Haaah, haaah..."
A room where the curtains were closed despite it being broad daylight, whether to block out the sunlight or the view of peering eyes was uncertain. The air inside was slightly musty, the furnishings were sparce, and while not totally messy, there was a great deal of disorganisation that had developed since the room was last cleaned a month prior. Thus was the natural habitat of the single, young adult male. And within this habitat was the hushed sighing of the only inhabitant, having just done the daily deed.
"Whoooh~"
Jacob lay in his bed staring at the ceiling with one hand in his pants and the other grasping a crumpled up tissue. It was at this moment that the shame slowly started creeping up on him, however like most of his generation, this pitiful bit of shame could no longer faze his iron will that was forged through many years of almost daily masturbation.
But recently, there was something mixed into the shame that often managed to slip through, guilt. This feeling that had been gnawing on Jacob's psyche lately had to do with the image currently displayed on the screen of his laptop.
There was a figure laying down on their stomach across a couch. The Image was taken at an angle that provided a full upskirt view of the female figure, in other words it was a peep shot.
The person in the photo wasn't human either. She had short, cream colour fur with patches of platinum white covering most of her body, from the tips of her pointed ears all the way down to her large, jet-black hooves. The glossy fur that dazzled in the sunlight especially accentuated her large, rounded and perky butt that was supported by her plump, meaty thighs and juicy calves.
The various curves that undulated on the Horse anthromorph's lower body alone was enough to tantalise any man, especially a hardcore furry such as Jacob.
But then, jerking off to furries wasn't really anything to be so hung up over, especially in the current day and age. What nagged and Jacob was something else entirely.
After having cooled down from the act, Jacob was now washing his hands in the bathroom sink. He was vacantly staring at the mirror over the basin, wondering if he should take an early bath while he was at it, when the door of the bathroom suddenly swung open. There was no knocking on the door of the shared bathroom, the other party simply strode right in, revealing her large, glorious frame that was coated in light cream fur. A thick mane of long, platinum-blonde hair draped down her slightly elongated face where sat a pair of large, frost-blue eyes shaded under long black eyelashes. In case her features sounded familiar, that's because the anthromorph who'd just nonchalantly waltzed into the occupied bathroom was the very same one from the photo Jacob had been beating his meat to earlier!
Her name was Shay, a Gypsy anthromorph that had been living with Jacob ever since his single mother had remarried a few months ago.
This was the cause of Jacob's guilt, all this time he'd been jerking off to a picture of his own step-sister, a picture he had secretly snapped on his phone while she was asleep in their living room!
Ever since the Splice, the inhabitants of Earth had grown more deviant in nature, now the furry genre often dominated the top of the charts in various search analytics.
Even Jacob's mother who was unmarried for several years and was a strong advocate for female independence was now married to Shay's father who was also a purebred Horse anthro.
None of these reasonings made what Jacob was doing feel any less wrong though.
"Sup..."
A light greeting was all that Shay offered as she went about her own business.
Jacob could barely utter a grunt in response, he simply stood there, gawking like an idiot at his furry step-sibling.
The anthro was a whole head taller than him, her body was really well-toned while being plump and curvy in all the right places. She wore only black lace underwear and a large tee-shirt that clearly showed off her perky breasts. While slightly modest by horse anthro standards, they were fairly large by human standards, and Jacob himself was a rather observant human.
His gaze crawled down her back that was facing towards him and stopped on her butt that was the epitome of perfection. One could only imagine the springiness of the large, round cheeks that were like swollen peaches. As his gaze was locked onto her ass, Jacob suddenly saw her reach under her tee-shirt and grab onto her panties before pulling them down with no hesitation whatsoever!
As if he wasn't standing right behind her, Shay casually stripped herself of her sparse garments, seemingly intent on taking a shower.
Jacob's presence never seemed to bother her as she would often walk about the house half naked or without a bra as long as there were no guests over. And of course, Jacob was often agitated as a result, to the point that he now used her image as fap material.
The young man unconsciously tried to get a better look of her as she stripped, however it was unfortunate that all of the important bits were obscured by her long bushy tail that cascaded over her backside. There were days when she would braid her tail but Jacob could only lament that today wasn't one of those days. Well. at least he got a good look of her inverted nipples before she stepped into the shower.
In the end, Jacob was left standing there all hot and bothered after perving over his own step-sister. As the sound of water spraying from the shower played out, Jacob turned to leave the bathroom but soon came to a halt. His gaze landed on the hamper where Shay had left her used tee-shirt and underwear, the freshy-worn black panties were lying at the top of the pile.
Maybe his mind was still clouded from jacking off earlier followed by the tantalizing display he'd just witnessed; Jacob had the urge to do something that he knew in the back of his mind that he'd most likely regret later.
Fear, guilt, shame, in the end none of these things managed to break through to him in his aroused state and in the end, the young man left the washroom in a hurry, the panties once sitting on the pile of clothes now nowhere to be seen.
***
*Sniffing*
Jacob's lungs went into overdrive as one of his hands pumped furiously at his shaft. The other was holding a pair of equine-sized underwear to his face. This was a sight no-one wanted to see; a young man alone in his dark room, furiously jerking off for the second time that morning, all while desperately inhaling the scent of recently worn panties. What was even more shameful was that the underwear belonged to one of his own family members, but Jacob didn't care about any of that at the moment.
All he could think about was the large ass that had worked the slightly eggy scent into the panties he was currently huffing.
The smell of ass was intense, but this only made the experience all the more stimulating. He imagined Shay's fat buttcheeks swallowing his face as she sat upon him like a queen on her throne.
This being the first time he'd ever done something like this, Jacob didn't last too long before he was firing his load, the fap so good that he couldn't even be bothered to prevent the cum from staining his bedsheets.
In the end he lay flat of his back, sweaty and gasping for breath. It would be a lie to say that he didn't feel greatly ashamed of himself at this moment of post-nut clarity, however the lust well overcame this feeling and Jacob simply lay there, marinating in the feeling of deviance that came from crossing a line he shouldn't have.
The warm panties were still firmly grasped in his hand. As he laid there, he figured to himself that, since he'd already crossed the line and done it once, doing it again wouldn't hurt right? Jacob gained affirmation in the form of his spent member slowly springing back to life.
