Disclaimer: I don't own Pitch Black! But, I do own a very dirty mind that enabled me to write this chapter for you. ;D

Here's what you've all been waiting for! It took me forever to write, so I hope you like it. I struggled with many of my word and punctuation choices. :( Please remember this is my very first fanfic, and that I don't have a beta. Don't forget to review! :) WARNING! MATURE CONTENT AHEAD!

Italics = Inner most thoughts

Bold Italics =Thoughts of the 'Beast'

Chapter 16

Rain's beast tests the grip on her wrists, tugging, but Riddick's grasp on them is unwavering; she can't get free. So strong.

He holds her down with her back to the desk, arms pulled above her head, secured to the flat surface by each of his hands at her wrists. His thighs press into the front of hers, pinning her legs over the edge of the desk and allowing him to hunch over her for a firmer hold. The position also lets him show her the violent anger in his eyes, from only inches away.

She represses a smirk at his show of aggression, her blood running hotter at the expression on his face. He looks so sexy. She tries to thrash her shoulders, to see if there's any wiggle room, but his heavy weight keeps her immobile. He's got us thoroughly trapped. That didn't take long at all. I was hoping to make him work a little harder.

Trapped? I still can't see what's going on. Rain, the original, non-beast version, is still stuck in the darkness of her mind while her beast is in control. She is getting more and more aggravated with each new minute that passes; she doesn't want to be in the dark any longer. Let me out. Maybe I can diffuse the situation and keep him from killing us.

I'm sure I can find a way to persuade him.Rain's beast smugly replies.

"What the fuck?" Riddick growls, obvious fury coloring his voice. "Enough of this shit."

"No." She whispers, reluctant to be subservient, despite being captured.

She twists her hips against Riddick, struggling wildly, and manages to free one leg. She quickly wraps it around his hip and digs her heel into his ass. She grins up at him, a challenge in her eyes. Time for the real fun part.

The sweet scent of Rain's arousal penetrates Riddick's anger when very little can. He's suddenly very aware of every inch of her pressing against him. Shit.

A flash wave of heat sends his mind into a buzz. A shiver runs just beneath his skin, and a large percentage of his blood runs beast rumbles out a purr. Yes.

Riddick pulls back slightly at the surge of heat flowing through his body, unconsciously loosening his hold on Rain. She uses the opportunity to wiggle her other leg free and add it around his waist.

With her thighs wrapping his hips tightly, and obviously not going anywhere anytime soon, Riddick tentatively pulls away even more. He wants more distance between them, to try to clear his head and regain his control; but, he stays close enough to keep his grip on her wrists. I don't want to chance another running incident.

With his new vantage point, standing before the desk with her sprawled out in front of him, Riddick can finally see Rain's eyes properly; there's a thin ring of blue-silver glowing around her irises. Why are her eyes different? What does that mean? They're beautiful.

Riddick loses his train of thought when Rain abruptly tightens her legs around his hips, using him as leverage to drag herself to the edge of the desk and press against the thickening bulge between his legs. Damn. He stifles a groan as he instinctively presses back at her, trying to relieve the growing ache. She tugs at his grasp on her wrists again, and he releases her without protest.

She grins mischievously, sitting up and pressing her hands to his abdominals. He watches her with hungry eyes as she slowly slides them up his chest, skipping over the band of lights, her nails scraping the black fabric of his tank-top. She doesn't stop until her arms are around his neck and she's barely on the desk anymore.

Riddick decides to help her further. He grips her thighs and gives her a little extra lift, using her weight to help grind her against him where he wants her most. Mmm, you think there's enough battery life in those lights for us to have some fun? Yes.

Riddick hopes his beast knows what its' talking about; his own thoughts are far too cloudy to focus properly. It's been too fucking long. Riddick settles Rain's ass back onto the desk, freeing up one hand to wind into her long brunette hair and pull her head in for a deep-throated kiss. He dominates her mouth, teeth clacking together and lips near bruising. She gives a keening moan in the back of her throat and Riddick purrs in response.

Rain unravels her arms from Riddick's neck and clenches them into his tank top, pulling the fabric up and prompting him to break the kiss and let her drag it over his head. The lights come with the shirt and she sets them on the desk next to her. I like where this is going.

She turns back to Riddick and hisses greedily at the view.

Riddick smirks at the lust in her eyes. "See something ya like, kitten?"

"Don't let it go to your head." She winks up at him, pulling him down for another enthusiastic kiss.

He happily complies, breathing deep through his nose and scenting her arousal thick in the air. Mmm, our kitten is in heat. After a moment of more clashing tongues, Riddick breaks their kiss in favor of tasting other parts of Rain. He nips her chin, sliding his tongue along her jaw to nibble at her neck.

"I gotta warn you darlin', there's a reason the mercs kept a bit in my mouth." He cautions her, scraping his canines down her neck before abruptly sinking them into the soft flesh above her shoulder.

"Ah!" Rain gasps, slapping her hands onto Riddicks' biceps and dragging her nails down them harshly. Riddick groans in response.

They each manage to the break the skin, drawing blood, and the pain drives the sexual euphoria up a notch.

Riddick laps at the little dots of red surfacing on Rain's neck, savoring the coppery sweetness. Riddick's beast purrs in happiness."Yum." He whispers against her.

Rain suddenly pushes his shoulders; he frowns in confusion as she forces him back.

Once she has him at arm's length, she turns her face to the scratches on his bicep and licks at one of the bleeding lines. She eyes him from the corner of one eye. "Mmm, you're right. Yum."

Pleasure surges thorough Riddick.

I think I'm in love.

Rain has had enough of her beast's continued control. She digs in her metaphorical heels and struggles to take the reins back from her other half. The beast responds with a feral growl, struggling right back. No. Not yet.

Rain lets out a frustrated scream inside the cage of her mind. This isn't fair!

Despite the inner battle going on inside Rain, Rain's beast never misses a beat with Riddick. He pulls at her clothes and she helps him drag her shirt over her head. Her shorts are next, and he murmurs approval at the black-lace, panty and bra combo, revealed.

He runs his hands from the top of her thigh-highs, up over the curves of her hips, dipping in for her waist, and ending at the bottom of her bra.

"Mine." He growls.

"Hmm." Rain's beast hums in agreement.

He slides his hands up behind her back, unsnapping the clasp on her bra like a seasoned pro. He tugs carefully at the straps, pulling them off her shoulders and revealing his prize.

Riddick licks his lips, worshiping her with his eyes. "Oh kitten, you're gorgeous."

"I know." She smirks, much more confident and self-assured than Rain, herself, would be.

Riddick smirks right back at her, before diving right in and latching his lips around her left nibble. She jerks in response, trying to pull away from the abrupt action. He keeps with her, following her down until her back is flat to the desk and he's hunched over her once again; she whimpers at his persistence. He nibbles and sucks at her breast, sending twinges of sharp pleasure shooting through her body.

He palms the breast not busy in his mouth, squeezing lightly, his calluses rough on her sensitive skin. Rain's beast hisses out a protest. He responds by pinching her nipple, and her hiss turns into a growl.

Riddick pulls away enough to grin, before clamping back onto her and doing his best to turn her growl into a moan. He succeeds. Fuck, he's good.

When he's satisfied with the treatment of her left breast, he switches to the other and laves the same attention there. It isn't long before Rain's beast is twitching in pleasure, playing her nails against his scalp, breath coming harder.

"Enough with the foreplay, Romeo." She finally groans, tugging at his shoulders. "I want the main event."

He snorts in amusement, pulling away and leering at her above his eyelashes. "Hmm, perhaps I want you to beg. Like a proper bitch."

Rain's beast roars with sudden laughter. 'Proper bitch', eh? "Funny. Fat chance of that happenin'."

He senses a challenge and pulls back even further, raising an eyebrow. "Shall we wager another favor?"

She's too impatient to keep up the humor, she shakes her head, sitting up and reaching for his belt instead. "Another time."

Riddick watches Rain unbuckle his belt in swift, efficient, movements; when she finally frees him, her eyes light up like a kid in a candy store. Fuckin' right.

She licks her lips and eagerly wraps one hand around his cock. Yesss. She explores him with her fingertips, a playful look dancing in her eyes. She nibbles her lips and he wishes it was him she was nibbling on.

Her gentle touches quickly frustrate him, when he can stand no more, he pushes her exploring hands away. "Another time." He turns her phrase back on her.

He reaches for her panties and tugs at them, signaling that he wants them off. She complies, bracing her hands on the desk and lifting her hips up. He steps back from between her legs, pushing her knees together and working her panties down.

"The thigh-highs can stay." He purrs, discarding the panties and running his hands up said hosiery. Sexy as hell.

He prods her knees back apart and steps close again. "Are you ready for this darlin'?" He pushes his fingers into the curls between her legs, sliding them down to test her wetness. He sucks in a hasty breath at how wet he finds her. "Mmm, you are."

He plays in her slickness before abruptly sinking one finger inside her. Fuck, she's tight. She twitches and gasps, grabbing his shoulders firmly. He places his other hand on her clavicle, urging her back flat on the desk and setting a better angle for his invading fingers. Amazin' fuckin' view.

"You're not a virgin, right?" He murmurs, working another finger in to join the first; watching the process as it sinks into her slowly. Beautiful.

She answers him in a breathless voice. "Nuh-uh. This one lost that a couple years ago, hardly an experience worth mentioning; ended up losing all taste for the act. Till now."

Riddick hums a pleased sound, using his fingers to stretch and prep her, adding a third finger when he's pleased with his progress. She squirms in discomfort at the third finger mark, so he leans forward to distract her with a kiss.

She throws herself into the kiss, battling with his tongue. While she's preoccupied, he withdraws his fingers and replaces them with the head of his cock. He presses into her slowly. She feels so fucking perfect.

As Riddick gradually impales her with that impressive cock of his, Rain's beast can't help but want to share the experience with Rain. You need to feel this. It's pure fucking bliss. Rain's beast casually pulls Rain out of the darkness, merging with her, and making her once again aware of everything around her.

All five of Rain's senses kick in at once. She can barely handle the sudden onslaught of sights, sounds, and sensations. She eventually centers her focus on the throb of pleasure between her legs. Oh god, that's good. I know, right?

Wait, are we having sex with Riddick? Rain struggles through the pleasure, focusing her eyes to find Riddick's flashing above her. He watches her squirm in pleasure as he penetrates her, all the way to the base. Yup. He starts a slow pull out. Oh, okay.

Rain's beast laughs at Rain's unusual complacency. What, no bitching? Um…nope…maybe later. Her beast laughs some more.

"You okay, kitten?" Riddick murmurs from above her, thrusting in again.

"Y-yeah." Rain moans. "B-But faster would be nice."

Riddick grins fiercely, eager to comply. "Your wish is my command."

A/N: So shall I continue…*smirks evilly* because if I don't get many reviews, I can just leave it like this…