Okay this new story is my take on the Alpha/Beta/Omega dynamics on Ao3. This is called 'Hard Fall' and I have been itching to pair up Riddick with a Marvel badass woman. For this I chose Darcy, because she is my favorite aside from Natasha and Jane. I was also thinking about a Riddick/TVD crossover with Riddick paired up with Lexi, because you guys should know how much I love working with uncharted crossover ideas... And this is an idea I had for a while. :)

Jane is going through withdraw from her Alpha after the end of the Avengers movie, so have a heart please. There will be no bashing the awesome Jane Foster. Without her Alpha, the wolf in her grows restless and well... makes her uncharacteristic. There will be mishaps happening in the name of science! Mates, protective and possessive behavior. Time travel, obviously.. Cursing, mating cycles, Darcy being Darcy with her trusty taser and sarcasm, mood swings as well as desperation. Violence and character death. Eventual smut.

Full Summary:

Set after the Avengers movie. In a sheer moment (Or you know the time span of a couple of weeks) of desperation; Jane builds an arched doorway thing in the name of science! to try to bring Thor back. In the effort to destroy it, Darcy ends up being sucked in after accidentally doing something right - who knew? She ends up getting transported a thousand years into the future, stranded on a desert planet and just days before her heat. All she wants is some water, cake, a massive amount of pillows to make a nest and to lick the man that invokes such wayward thoughts within her.

Riddick had long suspected his mate to be long gone - with suspecting to be the last of his race and all. Little did he know was at his saving grace would come in the form of a curvaceous dark haired beauty that fell from a random wormhole, cursing darkly with a feisty personality and wielding a taser.

….

A pale oval shaped pill glinted softly underneath the not quite luminescent, yellow tinted lighting of the underground 'laboratory' (you know, if you could call it that…) from the center of a slightly sunkissed palm. An annoyed sigh left it's previous concealment from behind shapey Cupid's bow lips as their owner finished counting the remaining contents housed within the three and a half inch tall circular, orange pill bottle.

I'm gonna run out soon, the curvaceous dark haired beauty groaned lowly at the mere thought, the almost inaudible yet pained sound echoing in her ears from the silence that shrouded her. Not for the first time, she grew to be indecisive if she should simply stop taking the suppressants that made her feel loopy in the name of having an easier way of life… or at the very least try to. Fucking fabulous, she thought dryly as she shoved the sealed pill container in the inside pocket of her jacket before grabbing the water bottle off of her 'desk' to swallow the medication that would hopefully ease her upcoming heat.

The woman cursed biology, not outward of course since she was well aware of her best friend's take was on the subject - "Don't blame Biology and Science as a whole just because you were born an Omega, Darcy!" - but she still couldn't help but grumble to herself. Sometimes it sucked to be an Omega, the very bottom of the food chain. Alphas thought you were a walking sex toy that they could state their 'claim'. Betas looked at you will pity, but let's be honest here: just looking from the sidelines never solved anything in in the history of mankind.. EVER. Her parents couldn't even look at her in the eye even after all these years when she did drop by for Christmas, all do to her 'classification'. As if being an Omega wasn't hard enough with the heats, in the end you get shunned or leered at. (...And people really wondered why she never went anywhere without her taser?) The pills helped to an extent… no matter how minuscule that 'help' was. All in all, it just sucked. There was just no other way to describe it. Most, if not all, of the time - Darcy wished that there were some kind of element of normalcy in her life. In the end though, she was left hopefully wishing or wishing hopefully…

With another sigh leaving her lips , the young woman put the water bottle back on the desk and reached a hand lazily up to her face to fix her squared yet fashionably made glasses that were balanced almost haphazardly on the end of her nose. She held no doubt that it completed the overall appearance of a disgruntled underpaid intern. Really, she loved working with Jane and all, it was just ... with how low the funds were that annoyed her. That and the fact that Jane got so wrapped up in her work most of the time that she literally forgot to take care of herself.

"I know, right?" Her best friend and 'boss' spoke up in response to sigh that, though small, seemed to echo throughout the room that they were in. The shorter woman gave Darcy a huff of her own and that was the only warning the brunette gave in alert that she was about to ramble quickly upon the 'possible miscalculations' to the almost arched… thing (doorway? Gateway? Whatever the hell it was, it was freaking the darker haired woman out already and it wasn't even half way finished…) that had been built in the name of Science! And you know, may have had something to do with trying to bring back to Earth a certain lightning commanding Demi God… okay more than half of the reason why this contraption now existed in the first place.

Her friend may have gone into detail about it at some point or another... but all Darcy had understood out of all that Pig Latin was "For Thor" which she had unashamedly mentally translated with a tone of voice one would have used to say 'For Sparta!' … well that and "Pesky, broken blue wire." The brunette haired, shorter woman turned her face to gaze at Darcy with an undignified scowl twisting on her lips and Darcy had a strange feeling for naught the fifth time in the last hour.

"Thor had once told me that 'Science and Magic are one in the same thing where he comes from'. If that's the truth then damnit, I should be able to do this of Loki - of all people - could!"

Darcy Lewis rapidly blinked her widening orbs from where she leaned against the desk that she had claimed as her own, thankful to be at a safe and acceptable distance away from the thoroughly annoyed and frustrated Astrophysicist wielding around a socket wrench in wild movements to put emphasis on a few choice words before inhaling a breath in an attempt to rant some more. As Jane ranted, her voice rising higher in volume with each word that left her lips, Darcy could only stare dumbfounded at her friend. She would do just about anything for Jane would protect her with her life if need be… but this? The person that stood before her wasn't the cool tempered Jane Foster that she knew and loved.

Don't get her wrong, Darcy completely understood the emotion behind the impressive amount of despise that Jane harbored at the mere thought of Loki's name, much less say it out loud. After all, with trying to kill Thor (the man that fell from the sky and Jane ended up loving after a short time span, but hey who was she to judge right?) via a huge metal robot thing that produced a destructive laser from it's face, coming back to Earth in person when that failed to attempt to enslave it and obviously thought, 'Hey, why not start with New York?' Clean energy project that Tony Stark was doing set aside, (and didn't that come as a surprise… Tony Stark eco-friendly?) Darcy would have started with California, after all think of all the sexy minions. After all, taking over Disney Land was okay if you were five... Darcy thought bigger.

Loki of Asgard was hereby given the rank of Amateur as far as Darcy was concerned. This was all before Thor - Jane's Alpha and Darcy's sort of Lightning sibling (...Taser. Lightning stick. She found out pretty quickly that Demi God's can't tell the difference.) - was whisked away from Jane… again. And while Darcy understood as best as she could and felt for her best friend, even though she herself refused to be claimed by just any Alpha, she also couldn't help but dislike what they had been doing. Sure Jane was putting it together,but Darcy was one that was standing there watching while offering amusing commentary … and somehow that felt like so much worse.

Maybe it was because of Darcy's own upcoming heat that stirred uncomfortable sensationally in her lower stomach… but as she was trying to be supportive, she couldn't help but once again debate on just what the hell the thing before her was. Really, was Jane that desperate… that low and that mentally unstable without Thor around... that she would attempt to build a wormhole?

'If that's the truth then damnit, I should be able to do this of Loki - of all people - could!' Yes Janie, why not? After all, the last time a wormhole came to Earth it worked out so well, didn't it? Darcy would do just about anything to help her friend but this rose a red flag within her, one of which she just couldn't ignore. It wouldn't matter much though if she voiced these thoughts because Jane wouldn't listen to a single word she said. Darcy knew because she tried before. She didn't even bother to veil just how wary she was of this entire 'project' but Jane had just waved it off before blinking those wide, tearful eyes at her and murmured three words that almost cracked Darcy's hesitance in half. "I need him…"

Darcy frowned softly as she eyed Jane's frazzled appearance and the dark circles framing heavily underneath her dark brown, doe-like orbs with a growing sense of worry that clawed at her insides. When was the last time you slept, Jane? The last time you grudgingly ate something other than blueberry poptarts, something that actually could put weight on you? Darcy shifted her weight from one of her black leather combat boots to the other, playing with the ends of the soft fabric of her scarf that hung loosely with shades of white, silver and black in front of her silvery tank top and black skinny jeans that encased her curvaceous form.

Please Jane… I don't wanna break your heart.

Darcy worried the corner of her bottom lip before parting them to speak with a small amount of hesitance leaking into her tone, "...That's certainly not what I meant. "

Jane groaned immediately in response; and even though she was nodding her head in understanding, Darcy could have sworn that Jane's left eye momentarily twitched with irritation as well as frustration. "I know what you're going to say Darce… I know all too well. It just not going to change the fact that I need him with me, right now and he isn't here. He's not even on Earth. You may be right… and later you are more than welcome to say 'I told you so' but it also won't change the fact that I will do this with or without you!"

Darcy daringly raised an eyebrow at her friend's words, scanning Jane's face and felt the wariness grow within her as she took in the raw emotion in her friend's narrowed orbs. Could the desperation for Thor be, quite literally, the cause of this change of mood? Was this uncharacteristic display before her what Omega's went through when they were separating from their Alpha for a certain amount of time? It almost made Darcy happy to not be bonded to another - almost. Sure the heats were both terrible and unsatisfying, but she also didn't have to place her complete trust and well being into someone else's hands. Into one that would be capable of walking away from her… "I was just going to say that my heat was coming up soon but whatever." Darcy rolled her eyes softly in response, feeling strange that they were arguing in the first place but knew in her heart that it was for the right reasons… and almost immediately turned away when she caught sight of Jane's softening facial expression.

"Oh…" Jane kept her mouth opened in a small circle as she desperately tried to find something, anything, to say in response to that. After trying and failing to think of something, Jane promptly closed it and looked much more sheepish than before, more sincere that Darcy had seen her become in days. Jane tilted her head to the side, folded her lips inward to make a straight line of them before she dared to try and speak again, "I'm sorry."

For what? Snapping at me for caring or because you knew what I thinking, because somewhere in there… past the insanity that was invoked by being separated by Thor… you are thinking it too? Darcy waved her right hand up and down in a careless manner at her friend as if the outburst didn't bother her one bit, as if these changes of moods that were so unlike the Jane Foster that she knew and loved - didn't in fact set her on edge. As if she understood… and while Darcy knew of the wrenching pain that came with heartbreak, the desperation one had when they needed something - she felt that it wasn't even close to the level of being separated from that one person out here that had the capabilities to make you feel whole.

Though from what Jane seemed to be going through, I'm not quite sure that I desire to know. Was it not safer in the long run… not being bound to an Alpha that laid claim on the wolf within her soul? Was it not worth it? Darcy didn't know the answer to such questions, she supposed that she would find out one day - sooner or later, but as she releases another sigh from it's previous concealment from behind her lips, she is forced to face the reality that she could find her mate at any given time. It could be that fate brought them together sooner rather than later, and there would be nothing she could do about it. Isn't it safer to be your own person though? Isn't that what I only ever wanted out of life? ...To be free?

"It's okay." Darcy offers as she tries to smile past the unease and growing pain within her soul that was currently messing with her own thoughts and emotions, despite it rising through into her expression. How could she fault Jane for wanting to be happy? Even if she felt that this wasn't the way that Jane should go about dealing with it. "You didn't know. I am more concerned about you. When was the last time you've eaten anything that counts as a meal, Foster? The last time you got some sleep? And don't you dare lie to me about this because lemme tell ya," she gestured to her own face before continuing, "it shows on your face that you haven't been sleeping well."

Jane rolled her eyes at Darcy's suspicious tone of voice even though her mouth started to curve upwards into a grateful smile. Some would think that the curvier female was like an overbearing mother hen when it came to her protective nature and Scientist Wrangling as Darcy lovingly called it, but it was those actions that proved she cared enough to nag at them. That she cared about their well being. If she didn't then she wouldn't have said anything at all to them, if her middle finger and snarky mouth wasn't a dead give away that is.

Jane pursed her lips in thought, trying to conceal a huff when Darcy responded incredulously - "You have to actually think about it , Jane?!" - before shaking her head. "How about I go downstairs to the Cafeteria and get some of chocolate cake for us to split and we'll call it a night, hmm? Technically it has eggs, milk, daily dose of salt and all… So, the technically it's healthy."

Darcy narrowed her eyes at her friend as soon as Jane started to speak something that wasn't Science or Thor because she clearly remembers having to drag the brunette away from her work, kicking and screaming to get her to eat something… maybe it was the fact that Jane now knew her heat was coming? After all, Jane knew with certainty that she craved sweets - mainly chocolate - when she was getting closer to her… wait a minute! "There's a freaking Cafeteria in this building?!"

Jane laughed joyfully at the expression that must have dominated her face, and while Darcy couldn't help but be annoyed… getting Jane to actually smile was another first this week. Either way, Darcy decided to count it as a win. "Where exactly do you think we are, Darcy? No man's land?" She shook her head in amusement, before shifting her humorous expression into one of seriousness. "Now while I'm gone, Darcy, whatever you do - don't touch anything. I mean it."

Darcy raised an eyebrow in her friend's general direction whilst in complete disbelief, because seriously?! Did Jane really think that Darcy wanted to do anything more than take a socket wrench to the blasted thing?! Corrupting it so Jane wouldn't be able to achieve the wormhole and most likely endangering all of humanity? She would make it up to her boss with vanilla ice cream (Because really, ice cream fixes just about anything!) and a shoulder to cry on, though she did not look forward to the snot… but then again, why not? Why not -

She nodded with a flat expression on her face, watching silently as Jane eyed her suspiciously once more before leaving. Darcy reached to grab a socket wrench in one hand and clutched her taser in the other before slowly turning her body to the machine with a mischievous smile curving upon her lips. Sure, she knew that when Jane came back she would have to explain her reasonings, but she would stand tall despite the fact that she already felt like cringing away.

Despite all of this however, she forced herself to move closer to the thing because - at least the way Darcy saw it - When in doubt? Sabotage.

She only prayed that she was doing the right thing.

….

….

If you could give me your feedback so far that would be great! Thank you for reading! More than 3,000 words.