Kind of a song fic, but no song lyrics in the story... If you want the song, it's 'Until it Hurts' by Francesca Hall. A darker side of Hook.

Hook laughed, tossing the glowing red heart into the air and catching it in his palm. With every hit against his hand, Emma's breath went short. It hurt, but for reasons more than one.

The silver moonlight glinted off of his hook, making it even more sinister. They were in the middle of the forest, it was midnight, and no one was around. They were all alone. She had been doing her sheriff runs when he had clubbed her over the head. And then she woke up, her heart in his hands. She was tied to a tree, hadn't they been in a similar situation before?

Hook moved her heat into the groove of his hook, careful to not tear it. He then reached for a dagger with his hand and pulled it out. His handsome features looked dark and evil in the night. A dark, cold wind started whipping around, sending her hair about. She struggled to move against the ropes, the cold biting at her face.

"So, Emma, how are you?" he asked, gently stroking the flat side of the blade against her heart. Large shivers overcame her body.

"Just peachy," she hissed, venom in her words. He laughed, still stroking her heart. It gave a cold feeling in her chest and hurt, just enough for it to be considered pain.

"That's good. Do you know why you're here?" Hook asked. She shook her head. "No? Well, you see, Emma, I have a problem. And you're the cause of it." She waited for him to go on, but he didn't.

"What kind of problem am I to you?" Emma growled, keeping a strong front. He was obviously waiting for her to ask that.

"Well, you've invaded my heart like a parasite. And since you only appear to return feelings for Baelfire, the Crocodile's son, I'm going to make you love me," he explained, taking the tip of the knife and tracing a word or two onto the flesh of her heart, although she didn't know what. "And there's only one way for that to happen. I suppose I could always kidnap you and have fear turn to love, but that would take too long. This way, love is immediate. Now I can stop running around, trying to get you away from your family. No, now you can just love me."

Emma felt sweat on her brow. He was insane, driven by the death of his first love and his hatred, his determination for revenge. Hook needed, craved someone to love him. He was trying to fill the void that had become his heart once Milah had died. His revenge was now impossible, due to the fact that the knife had been sent somewhere far away. The only thing that had filled his life was impossible, gone forever. There was nothing left for him. He needed something in his life, someone. And he choose her.

Maybe he loved her, maybe he had simply tricked himself into thinking he loved her. But forcing her to love him, forcing her to stay with him for the rest of her life. That was pure insanity, pure madness. She felt sick to her stomach, forgetting about struggling. He couldn't force her to love him, right? No one could make emotions, not even Captain Hook or Rumplestiltskin.

"Hook, you're tired. It's late. Let me go, and we can just talk this out. We can go on a couple dates, whatever you want. This isn't the right thing, you have morals, don't you? This must be going at least one of them," she tried, shadows hiding his face. His cold laugh sent shivers down her spine.

"I have no morals left, lovely. I have nothing left. Everything is dark, Emma. I can't see anything, nothing is clear. But you, sweetheart, are my light. You're my savior. YOU WILL BE MY LIGHT!" Hook roared, slicing his cheek open. It started oozing blood. He then calmed himself. "I need you in my life, Emma. And I need you to need me in your own life. That's why I'm doing this. Not to hurt you, but to right you. You need someone in your life like I need someone. We can be there for each other." And with that, he took the knife and drew a straight edge at the edge of her heart. Emma gasped, the pain sending tears down her frozen cheeks. He branched two quick lines off that one, then paused.

"Everything hurts, Emma. Every breath, every heart beat, every rush of adrenaline. It's so hard, everything is so hard. You are my savior, Emma. You have to be my savior," he whimpered, a vacant look in his dark blue eyes. The blood beneath them made him look so helpless, so innocent. So crazed. Emma felt something rushing beneath her skin, magic at work. He was doing something, doing something to her.

"Stop this," she panted out, the pain almost unbearable. It was an effort to even breath. He ignored her, continuing tracing the lines into her heart. After slicing a few lines. Glowing blood pulsed from her heart with every heart beat, covering his hand and the ground. The crazed look in his eyes grew stronger, and Emma felt pangs of fear in her stomach.

"You will love me as much as I love you," he whispered, finishing his design in her heart. From her position, Emma could see a few letters here and there. It was a first name and a surname, she thought. Hook slowly walked over to her, the heart still dripping it's lit-up blood. It went dark as her heart went dark.

Hook put the knife back in his sheath and put her heart into his hand, then walked over towards her. His grin was matched to only those of the insane, yet it was filled with love. She didn't want this, she didn't want him. Maybe she loved him, maybe she didn't. Emma would never know.

Emma finally saw the words written into her heart. Killian Jones. Hadn't that been his name...? Not Hook? Emma felt sick. Just what was he doing to her? What magic was this? Emma didn't know and wouldn't know. At least, not until much later in her life.

Because the next thing she knew, her heart was thrust back into her chest and she felt magic and emotion pumping through her entire body. Then, she fell unconscious.

Killian Jones smiled, looking at the blonde. She was beautiful, so full of light and hope. From the moment he saw her, he knew that she would save him. She would have to. Emma was the savior, after all. But as it turns out, not just of their small town.

She saved his soul, filled it with light when there had only been blackness, eating away at him. Every time she left was like dying, the darkness hitting him once more to it's strongest. But once she loved him, it would never come back. And they could be happy together.

Hook cut her ropes, then hoisted her over his shoulder. He thought about the bean he had stolen, how he would use it for them to start a new life together. A happy, blissful life. Where no darkness would ever touch his mind.

Once on his ship, Killian sent a farewell glance to the town of Storybrooke. It was strange, but he would miss it. After laying his love on a spare couch he had stolen from a store in town, he started sailing, throwing the bean into the Maine waters. The portal that formed swallowed his ship, and he grinned as they left. Just him and Emma. She would love him.

Cora had told him the once you carved your name onto someone's heart, they would love you forever. It would be a blissful love, but all magic came with a price. She would die before him, leaving him to feel the pain once more. But that didn't matter now. It wouldn't matter, not where they were going. All that mattered was that they would be happy.

Just them. Just their love.

Just Killian and Emma. Forever.

Even I'm creeped out and I wrote this. Review, please. If you're confused, if you loved it, if you hated it, tell me. This is my darkest fic yet. I hope you enjoyed this as much as I enjoyed writing it!