Belatedly, it all makes sense.

The long, restless nights.

His inability to garner more than two hours' of sleep at a time, if that.

Racing thoughts, rapid heartbeat, everything and anything able to set him off, make his jaw clench in barely restrained anger.

He had simply chalked it up to the stress of the situation, losing his love, losing his undeserved chance at happiness.

Yet, now… he knows the truth.

Another Dark One. The words curl as evilly in his mind as they do on that damned blade.

Killian has no desire to dissipate himself in a swirling cloud of dust, so he choses to angrily stomp from Swan's domestic abode to his ship in the wee hours of the morning. The town slumbers peacefully as he walks, unaware of the revelations that have shaken him to his very foundation.

As he reaches the docks, Killian thinks he hears a high-pitched "tee-hee-hee" from somewhere.

He slows his pace, eyes narrowed as he looks around to see only darkness and the sound of the waves lapping at the shore. Killian ultimately decides that he has no desire to trot down the Rumpelstiltskin themed rabbit hole and silences the imp in his head with a succinct, "Fuck off, you scaly-faced bastard."

The giggling abruptly ceases.

Finally, he boards the gangplank of his ship, his boots thudding as he enters his home.

Hours pass as he attempts to drink, sleep, eat - anything to stop the dark thoughts running through his mind. Killian feels as if he has paced a permanent groove in the worn wood of the Jolly Roger. Liam would be pissed, he thinks with a small grimace.

Still. Nothing works and he gives his attempt to sleep.

Sometime later after throwing off his blanket in frustration, Killian sighs and tugs at the button of his jeans with his good hand before removing his hook and brace. A tried and true strategy, he muses as his fingers ease the material of his jeans past his hips, his back arching up to help slip the denim down. When all else fails, have a good wank and maybe he will be able to find something to put the swirling thoughts of his mind at bay.

"Damn you, Emma Swan," he mutters, settling back on his small bunk, long legs spread before him, bare from the waist down.

He closes his eyes and grits his teeth. The small, angry part of him does not want to think of her. He almost can't even think of her name, the pain and anger from earlier lingering in his veins. However, his traitorous mind drifts over to her (like always, he's loved her so fiercely his mind and cock just won't stop now) and he simply swells in the palm of his hand, images of his Emma floating to the surface of his mind's eye. Emma pressing her body against his, her sweet scent filling his nostrils, her eyes looking up at him, a soft smile on her face.

Another darker part of him chides him for loving her so damn intensely, how could anyone else feel the depth and breadth of that emotion.

He wonders if that's the darkness talking.

Giving himself a slow squeeze as the memories assail him, Killian cannot remember the last time he's touched himself, too busy with Dark Ones and fucking evil Kings and sodding half dead Dark One's and…

Fuck Emma, he hisses as his fingers curl around his cock. A moment later, another deft stroke causing the blood to rush south, lengthening and growing with each tug. He spits into his palm, then smears the liquid around, two fingers carefully coating around his length. His eyes peek open for a moment, enjoying the sight as he squeezes from base to tip to produce clear drop from the tip. He imagines it's Emma between his legs, her hands all over his hardness, all over his thighs, nestled in as she takes her time pleasuring him to new heights. Dark One or not, it's always been her, the one that sets his mind and heart racing all in one.

It's enough to make his toes curl and hips arch upward in the pleasure of it all.

Continuing his steady strokes, Killian's eyes slide closed again and he sees her in his mind. From Savior to Dark One, his cock has no qualms in his appreciation of her and leaps at the thought of her.

His Emma.

His mind instantly replays a particularly enjoyable moment of her perfect breasts spilling out of her top, enjoying the soft round curves peeking out, just for him to appreciate. He imagines the feel of them, soft and yielding, surrounding his hard length as he slides between.

Suddenly, his senses tingle and he knows instantly that he's not alone on his ship. He can smell her unique scent and almost hear the inaudible click of her black boots on the floor.

Fucking dark magic, the thought burns at the back of his mind, but he's too consumed by the growing thoughts of her to give it much heed.

Not to mention he's still bare ass naked from the waist down, his cock twitching from the pleasure of knowing that she's watching him. His hand squeezes down a little tighter, another bead of moisture dripping from the tip.

"Damn it, Swan," Killian murmurs, his hand never slowing from its causal stroking of his heated flesh. Through half-lidded eyes, he looks up to see her standing before him, her head tilted to the side, lips pursed, as she eagerly takes him in.

"You called me," she whispers, feet inching closer to him, her eyes locked on his lower half. "You said my name three times and I must appear."

"I'm sure that sodding name me thrice bullshit does not apply when there are multiple Dark Ones, Swan," Killian growls, but does not stop his actions. Touching himself with Swan in the room, her hungry eyes watching his ministrations continues to send a jolt through his loins. Having her watching him feels too good to deny, too good to stop.

Surely, having a wank in front of another Dark One does not equate instantaneous darkness? He considers this thought carefully, his hand never stopping his lazy, even strokes as he mulls over his options.

Stop?

Keep going?

He could poof some clothes back on, he muses. However, no one has taught him how to poof a damned thing, so continue his wank he shall.

Emma, on the other hand, seems to have made her decision as she moves closer still. Her green eyes flick from his cock to his face, the thoughts of her actions, the naked desire of her wants written out, clear as day. Killian watches her through half-lidded eyes as she continues to move forward at an even pace, her feet inching forward.

Their eyes finally lock as she reaches her destination, her body almost touching him as she stands next to his small bed. "Tell me what you want," she whispers, her red lips distracting him and tempting him all in one pass.

"You." Is his simple reply. It is the truth. She has been his only desire since the day she held a knife to his throat and dismantled his lies in an Enchanted Forest clearing on that fateful day years ago.

"I am yours to command, then Killian," she said, her voice low and full of promise. One hand reaches out to him, her fingertip slowly running along his length, pushing his hand away to take control.

He shivers slightly at her touch, his breath slow and even, frozen in pleasure and torture all wrapped up into one slow touch of her hand.

Emma smiles in delight at his reaction and presses down harder on his velvety cock. "It's not so bad now, yes?"

Killian prides himself on his self-control that he does not thrust into her hand, or drag her into his bed like a lovesick deckhand. "Aye," he whispers, his eyes locked on her hand, finger becoming fingers, as she wraps her hand around him, lazily drifting up and down. His hand moves down to join hers, linking fingers like they have done so many times before as he guides her hand into a rhythm.

Together.

A minute passes in silence, the soundtrack of their hands the only noise in the small cabin. "Just wait for what I can really do, Sailor," Emma replies and in a blink, her Dark Swan leather coat has been replaced with a black corset, red ribbons woven through the front bodice, pushing her gorgeous tits out on display for him and him alone. She is gloriously bare otherwise, save for the tiniest scrap of lace completing the bottom half of the outfit. Her hair has been loosened from the severe bun, falling in long waves over her shoulders "Like what you see?" Emma purrs, her hands leave him for a moment to slide up the corset, squeezing her breasts gently, her back arching outward.

He doesn't recall replying, just that his control snaps as he sits up, then reaches out with his good arm to yank her body into his bed. She lands against him with a slight oof, that seems almost counter-intuitive to a Dark One, but Killian decides that he doesn't care as he tilts his head down to capture her lips.

What initially starts off as an almost careful press of lips, quickly turns into something more. Emma sighs with contentment as Killian quickly loses his control, mouth opening to slide his tongue against hers before nipping her bottom lip. The press of his teeth against her lower lip, sends shivers down Emma's spine as she sighs in his arms.

He instantly takes what she's offering, one hand sneaking between them to cup her breast, fingers harshly pinching the nipple as they kiss.

Suddenly, he finds himself on his back again, his Swan straddling his bare hips, her panty clad sex pressed down against him. He can feel that she's soaked through the small lace square. "Aching for me, Swan?" he asks, his hand gripping her hip as she grinds herself on him before leaning forward to press her full body against him.

"Always." She moves over to carefully lick up the side of his neck, ever since learning how that simple action always turns him on. Her tongue traced his jawline, over his ear.

Killian bites back a moan as she tugs on his earlobe with her teeth. Suddenly, he has the overwhelming urge to capitalize on every desire he's ever had. "You need to use those perfect little lips around my hard cock instead, Swan."

Emma hums contentedly. "You think so?" she asks, not stopping her task of tracing the shell of his ear with her tongue.

He slides his fingers up through her hair, giving her a slight yank, pulling her from his ear. "I said to suck my cock," he growls.

Large green eyes snap up, locked on his for a long heartbeat. A small puff of breath leaves her lips. "Yes sir," she breathes as she wiggles down his body, dragging her breasts over the tops of his thighs as she goes.

Emma purses her lips to blow cool air over the length of him, her nails grazing down his legs as she settles between them. Killian grits his teeth, both loving and hating the smirk that plays over her lips, she is purposely taking her time to rile him up. She skims her lips over him, one hand slipping between their bodies to give his balls a quick squeeze and laughs at his sharp intake of breath. "I like making you want me," she tells him with a grin.

"Damn it, Emma," Killian gasps as her tongue finally pops out to give his cock a long, slow lick that already has him seeing stars. "I always want you."

She hums again, then suddenly moves forward to suck his throbbing member into her mouth. Killian pulls in a long breath as her tongue swipes over and over the tip. Dark One or not, her very talented mouth makes him recite constellations and old sea shanties in a rather pathetic effort to not explode in a quick and humiliating fashion. Emma continues to bob her head over and down his erection, dragging her tongue along the sides as she moves. One hand is still eagerly caressing his balls, while the other is locked in a death grip on his muscular thigh.

Minutes of pure bliss pass before Killian can't hold back. "Fuck, I want you," Killian growls feeling the thin string of his control snap again as he roughly pulls Emma up from her position between his legs to flip her beneath him.

Emma doesn't have time to reply, she can barely nod in response as Killian slants his body over hers to furiously kiss her.

His mind is racing as he kisses her, the wish that they were both naked bouncing through his thoughts for the briefest of moments. Then a moment later, he looks down and realizes that they are both naked.

"Bloody hell," the curse tumbles from his lips. He's doesn't know if he should be repulsed or impressed.

Emma instantly senses the change in tone and takes it in stride. "I told you it's okay. We're fine," she whispers, her lips peppering his throat with small kisses. "You control it, it doesn't control you. I've learned." Her hands gently caress down his back, holding him close.

Killian slams his eyes closed. Discussion of the properties of being the damned fucking Dark One is not a discussion he wishes to have while he's propped between Swan's creamy thighs, his cock aching to make them complete.

"Later Emma," he grits out.

He's worked so long to keep his darkness at bay, and now, it's all for naught.

He feels the high pitched imp giggle at the edges of his mind and he growls again in frustration. In an effort to push the darkness away, he goes back to thinking about how he would rather be deep inside Emma from behind instead.

And again, his wish becomes his reality as he finds himself standing over the edge of the bed, his body bending Emma's in half. His eager cock is positioned between her legs and he can feel the dampness on her thighs, ready for him.

"Killian," Emma moans quietly, wiggling and grinding her lovely arse against him in desperation. "I can teach you later, but now I need you to fuck me."

It was all the permission Killian needed as he lines up and slides home, a moan falling from both of them as he sank inside as deep as possible.

"Oh god," Emma gasped as he bottomed out. "Holy fuck, Killian. So good." She continued making incoherent noises as he slid out and slammed back in. His fingers were curled around her hip, holding her steady as he increased his pace.

Killian couldn't really reply to Emma's moans as his mind was occupied on her tight, wet heat surrounding him. A parade of fucking, bloody Dark Ones wearing pink dresses could do a lively jig through his cabin and he wouldn't have paid them any heed. Being deep inside Emma seems to have silenced the cacophony of dark thoughts bouncing around his brain.

He took a deep breath along with a couple of careful, teasing strokes before Emma spoke again. "Hard, Killian. I need you." She was breathing harshly with the exertion, her body trembling beneath him.

Killian snapped his hips against Emma, his hand gripping Emma's hip as he pounded into her, all thoughts forgotten except for her. Her moans and gasps of pleasure were music to his ears as he moved his hand around her body to thumb at her clit, drawing circles around her through the slickness. Her body tensed at his touch, her hands clenched around his bed sheets.

With a low pitched moan, Emma clamped down, her muscles tightening as she tumbled into her orgasm, her pulsing walls pulling him under with her. Killian slammed into her body one last time as he came with a roar, lights flashing before his eyes.

A moment later, a small frown appeared on his face as he held Emma's slightly limp and trembling form in his arms. He didn't want to finish just quite yet. Then, a small wicked thought popped into his mind.

Again, he focused the thought towards Emma.

Emma snapped up from her drooping position with a small moan. She turned to look over her shoulder at him with wide green eyes. "Oh damn Killian, I can feel it. Whatever you just did, I could feel it tingle through my veins."

Killian didn't hold back the feral smile that formed on his lips as his erection raced back to life deep inside her as well. "Well then Swan, I suppose there might be some perks to all this Dark One nonsense. Are you ready to be fucked until neither of us can move?"

Emma suddenly poofed them into his bed, one leg thrown over his shoulder, his cock still buried deep inside her. "I'm game if you are," Emma replied with a wide grin.