DISCLAIMER: Nothing in this story is real or should be considered as such. This story is very odd and is based on a strange fantasy I concocted that brings together some fetishes I'm into. This first chapter introduces the characters, sets up a little bit of where the story will be going, and yes, features hardcore sex between consenting adults. I do know where the story is going to be headed and have the future chapters mapped out in my head. However, I welcome any feedback and I'm always excited to discuss the story and characters, and chatting/bouncing around ideas for future stories. I hope you enjoy delving into my insane mind.
NOTE: This story features characters that appear in my other stories. They do not take place in the same continuity. Each series can be considered its own universe of sorts, with difference events, relationships, and couplings.
FROM ONE SISTER TO ANOTHER CHAPTER 1
Maddie should have just kept walking. She never should have peeked into the opening of her sister's bedroom door. Curiosity killed the cat, after all, and right now, sitting on the floor outside of Tiffany's bedroom, back braced against the wall, Maddie herself might have still been alive, but her entire worldview was buried six feet under and never coming back. That murderous curiosity had driven her to look, and because of it, she learned three important things that ended her, that effectively killed the Maddie that existed before that moment.
The first, was what her sister's naked body looked like. Sure she'd seen her sister naked before but that was many years ago, back before they fully developed into the women they were now, and certainly never, ever like this. Never while she rode on top of a guy, rocking her hips back and forth while crying out in pleasure.
Their entire life, Maddie was always the more attractive sister. She took pride in her wide hips, shapely thighs, and thick dark blonde hair that ran down to her mid-back. Not to mention her undeniably cute face with vibrant honey-colored eyes, plump lips, and an awkwardly shaped but alluring nose. Even after she finally filled out, a good handful of years after Maddie, her younger sister just never quite hit the level she did. And that's not to say that Tiffany didn't have her own appeal. It was just different. She was long and lanky, her individual parts not as exaggerated as Maddie's. But right then, in that moment of nakedness, her proportions seemed exactly right.
Her breasts, much smaller than Maddie's own, looked perfectly suited to her frame as they bounced up and down on her chest, their perkiness indisputable. Her legs, with its gap right between her thighs where they met her mound, seemed exactly contoured for straddling the man beneath her. And her small ass appeared thick and plump as it gyrated back and forth.
While Maddie was undeniably the more attractive sister, there was no question how goddamn sinfully hot Tiffany looked fucking someone.
The second thing Maddie learned was what her boyfriend looked like fucking someone, in this case, Maddie's very own sister. Because it was definitely Kyle that was underneath Tiffany's rocking body, teeth clenched, strands of dark hair plastered to his forehead while he gripped Tiffany's jerking hips. He was naked as well, somewhat new to her also, though she'd seen enough bits and pieces separately to have formed a picture. She'd seen him shirtless before, from the back as he changed underwear, and on only a handful of occasions she'd seen his erect penis. Ironically, that last bit was the one part of him she couldn't see at the moment. But she'd never seen him have sex before and certainly never with someone else.
In the entire time they'd been dating, coming up on four months in about two weeks, Maddie and Kyle had only ever really gotten as far as handjobs. And getting to that point took about three weeks in itself. Kyle never pressured her to do anything and the first time she ever reached for his pants to unzip him and slink her hand inside to grab his stiff prick, it was entirely her own choice. That first time had been a little awkward; she was a bit unsure, but Kyle's groans and eventual climax were nothing if not encouraging. Since then, she'd jerked him off a few times, gaining more confidence with every stroke and every moaning explosion from her boyfriend. But even after all that, she had to admit, it was mostly for Kyle's benefit over hers.
Yes, Maddie was attractive. Yes, she was aware of how hot her body was. But she also was just not that interested in having sex. Maybe it was her inherent shyness, a level of modesty and traditionality that blocked her from finding immense pleasure in the idea of spreading her legs for someone. She knew she'd eventually do it for Kyle, but she had put off progressing past handjobs because of her unusual lack of interest. Kyle had never complained about it, never tried to force her face closer to his cock the times she beat him off while on her knees, but maybe now she knew why.
Which led to the third and final thing Maddie learned. The most world-shattering revelation: how insanely, panty wettingly fucking hot she found it all. How much it turned her on watching her sister fuck her boyfriend. That was truly the thing that put an end to the Maddie that existed prior to peeking into that doorway. The Maddie that watched for nearly a minute, taking in the sight of her sister and boyfriend's wild coupling before catching herself and spinning to brace against the wall lest they see her, was someone else entirely. The Maddie that quietly slid down to a seated position while listening to the sounds of the bed creaking and whose breath caught in her throat as she pushed her hand into her tights to find a slick, wet pussy waiting for her, was a brand-new Maddie. And as she rubbed her hand down between her slick lips and stifled a cry of joy, she knew the old one was gone forever.
"Uggnhh! Are you... close?" she heard Tiffany pant from inside the room. Maddie had covered her mouth with one hand while the other frigged herself harder, thick thighs spread to accommodate the erratic movements inside her tights. She'd been masturbating outside Tiffany's door for almost five minutes by this point, reveling in the moans, groans, and dirty talk between the two. "We gotta... finish... before she... gets home. Mmmmm!"
If only they knew that Maddie had been home for some time now, a mere twelve feet away listening in and getting off.
Her class had ended early and rather than stay on campus any longer she decided to head back home. Her eyes had nearly popped out of her head when she entered the condo she shared with her sister to hear the unmistakable sounds coming from upstairs. Maddie had never had sex herself, but she knew what it sounded like, and even though Tiffany wasn't seeing anybody, it was very obvious her sister was having some. As much as she felt bad thinking it, it wasn't that surprising to Maddie that Tiffany might hook up with a guy she just met. She could see Tiffany trying to use sex to compensate for the lack of attention she received compared to Maddie. And from the sound of it, unlike Maddie, Tiffany seemed to enjoy it, so she wasn't going to judge her sister that much.
Not wanting to ruin Tiffany's fun—and embarrass the both of them—she had snuck upstairs intending to head straight to her room. But as she approached Tiffany's doorway, she saw it wasn't closed all the way, with about a foot of space between the door and the frame. She could have just walked right past it and continue to her room but instead, Maddie had paused and with a curious smirk, had peeked inside to catch a reflection of the action in Tiffany's large dresser mirror.
"Yeah, I'm close," Kyle grunted in response to Tiffany's question. "I can't believe we're actually doing this. Ungh! Fuck! It's so wrong."
"Cause it should be my sister?" Tiffany said, the sound of her bucking picking up. "You probably wish it was her. She's... so hot. Hotter... than me. And so fucking proud of it."
It was true. Maddie was very prideful of her looks... and secretly took just the slightest bit of pleasure in that fact when comparing herself to her sister. She thought she hid this dark truth well but apparently not well enough. Part of her felt bad about that and the complex it must have created for her sister, but that part was buried under the sea of an orgasm desperately wanting to crash onto the shore.
"Right now... you look fucking hot."
