I am so, so, so sorry I didn't update on Wednesday! My life the past two weeks has been absolutely crazy! I'm thinking about changing the update day of this story to Saturdays, but I'm not sure yet, so we'll see how this next week goes.

This chapter is set in the time when the Black Fairy was in Storybrooke, so season 6B.

Thanks you so much for all of the reviews, follows, and favorites!
I do not own OUAT or its characters.

Commanded

"See you after work, love," Killian said to Emma. He kissed her forehead.

"You know… you don't have to go home. You can help me at the station. My dad wouldn't mind, I'm sure," Emma explained, hope in her voice.

Killian smiled. "I would love to, but, alas, I have things to get done at the house."

Emma rose her eyebrows. "Like what?"

Killian smirked. "You'll find out tonight."

Emma laughed and rolled her eyes. "You're ridiculous." She leaned forward and kissed him gently. When she pulled away, she smiled at him. "See you at lunch."

Killian nodded. "Aye. Lunch."

Emma laughed a little. She opened the door to the sheriff's station and walked in.

Killian stood there for a moment, smiling. He shook his head and turned to leave. He still couldn't believe that he was going to propose to his True Love. It still felt surreal to him. After everything he had done in his past, he felt as though he didn't deserve to be happy, but Emma did. She deserved all the happiness in the world, and he as going to give that to her.

There was a spring in his step as Killian walked home.

When he reached his and Emma's house, he quickly walked up the steps and entered. He wanted everything to be perfect for tonight.

He walked into his and Emma's room and opened his sea chest. He smiled when he saw the small black box that contained Emma's (hopefully) engagement ring. Although he knew she would say yes, there was a part of him that thought otherwise.

Killian shook that thought out of his head and walked downstairs. When he turned to walk into the kitchen, he was met with a most unwelcome surprise.

"What are you doing here?" Killian growled.

The Black Fairy smiled cruelly. "I'm here to see you, of course."

Killian wished he had his sword on him at that moment. "Get out."

"But I haven't given you my gift yet!"

"I don't want anything from you." If she ruined this night, she better have a plan to get out of Storybrooke.

"Of course you do. My gift can finally set you free from your wretched Emma." The Black Fairy spat out Emma's name as if it was the worst curse known to man.

Killian felt his heart clench. He refused to think that his swan could be taken from him. "Why would I want that?"

The Black Fairy took a step closer to him. "Because then you could get your revenge."

"I've given that up." Killian stood his ground. "Love is better than revenge."

The Black Fairy shook her head. "You misunderstand me. I know you have given up revenge on your precious crocodile, but that's not who you truly want revenge on, is it?"

"What are you talking about?"

She stepped closer. "You truly want revenge on Emma Swan."

Killian wanted to punch that smirk off her face. "I don't. Why would I?"

The Black Fairy shrugged. "She is, afterall, the reason Baelfire is dead; and the reason you're not with your brother right now."

"Emma is not to blame for any of that. Zelena and Hades are."

She took one last step closer. "No. Emma Swan is, and you know it." She thrust her hand forward into Killian's chest.

Killian cried out in pain as the Black Fairy ripped his heart out. "W-what are you doing?" He hated how shaky his voice sounded.

"I need you to kill Emma Swan."

Killian shook his head. "No. I won't hurt her." Even as he said it, Killian knew it would be hard to resist the control the Black Fairy had over his heart.

"Yes, you will." The Black Fairy put the heart close to her mouth and said, "Kill Emma Swan before the sun sets tonight." With that, she disappeared in a cloud of smoke.

As soon as she was gone, Killian collapsed to his knees.

Emma put down her pen and yawned. David had just left on patrol and she was stuck doing paperwork.

"Hello, love."

Emma smiled and turned to see Killian walking in with a bag from Granny's in hand. "Hey."

Killian avoided her gaze and set the bag on her desk.

Emma noticed Killian's movements. "What's wrong?"

He should have known Emma would have figured out something was up sooner than later. He just shook his head. "Nothing."

Emma stood up from her chair. She took Killian's hand and hook into both of her hands. "You can tell me anything."

Killian smiled and leaned forward, pressing his lips against hers. When they pulled apart, Killian mumbled, "I know."

Emma smiled at him. "So… there's nothing you want to tell or… ask me?"

Killian wanted to say 'yes.' He wanted to tell her to run as far away from him as she could. Maybe he made a mistake coming here in the first place. He should just had stayed at home and hope that the Black Fairy would crush his heart before Emma got home.

"There is… one thing I wanted to tell you," Killian said.

"Oh?" Emma rose her eyebrows.

"I love you." He smiled.

Emma's expression softened. "I love you, too."

He smiled wider. He bent down and kissed her once more. "I'll see you tonight," he said when he pulled away.

Emma smiled. "See ya."

Killian gave her one last smile and turned around, walking out of the station. As soon as he was out, he was enveloped in black smoke and then appeared in the living room of his house, facing an annoyed looking fairy.

"Why didn't you just end her miserable existence right there?" the Black Fairy asked, annoyed.

"I'm not going to hurt her!" Killian shouted.

The Black Fairy made Killian's heart appear in her hands. She squeezed it.

Killian groaned in pain as he fell to his knees, clutching his chest. "Just… do it. Kill me."

"You're going to kill your girlfriend when she comes home from work. You don't get until the sun sets. You kill her the next time you see her!" the Black Fairy shouted.

Killian shook his head, trying to resist the pull. "No, I can't."

"You can and you will." She released his heart and disappeared.

Killian breathed in heavily.

Emma walked into her house. All the lights were on, but she couldn't see Killian.

"Killian?" she called out as she hung her coat up and took off her shoes.

As soon as Killian heard her voice, he wanted to cry, but he didn't have time before he heard the Black Fairy's whispers in his head. She was telling him what to do.

Grab your sword. He grabbed his sword.

Walk downstairs. He walked downstairs.

Emma smiled when she saw him, but it quickly faded when she saw the sword in his hand and the expression on his face. "What's wrong? What happened?" She took a step forward.

"Don't, please!" Killian shouted out of instinct.

Emma jumped at the desperateness in his voice. "Killian-"

"Run, Emma. Run!" Killian explained desperately.

"What's going on? Why?"

"The Black Fairy - she has my heart and she commanded me to kill you," Killian explained. Kill her. He took a step towards her.

Emma didn't want to look like she was scared of Killian because she wasn't. She was scared for him. "You don't need to listen to her."

Tears slid down his cheeks. "I know, but she has my heart and I want to fight so much, but I can't."

Emma stepped towards him.

His eyes widened. "No, Emma! Run!"

"I'm not running away from you, Killian. I'm going to save you." Emma thought about magicing away Killian's sword, but she knew she had to prove to him that she believed in him.

Emma stepped right up to Killian and put her hand on the hand that was holding the sword. She gripped it tightly. She put her other hand on his cheek and wiped away a tear. "Hey, look at me. I'm real. What the Black Fairy wants you to do is not."

More tears fell. "Kill me, Emma. I don't want to harm you."

Emma's heart clenched. "I'm not going to hurt you."

Kill her.

"Emma… please…"

"No." Emma had an idea. "Killian, I need you to fight the Black Fairy for a little longer."

Killian nodded, but Emma could see how strained he was.

Emma took a step back. She sucked in a breath and plunged her hand into her chest, pulling her heart out.

"Emma!" Killian cried.

"It's alright, Killian. I know what I'm doing." She gave him a reassuring smile. She put her hands on the sides of her heart and pulled, ripping it in half. Emma flinched at the brief pain. She stepped back up to Killian. She shoved half of her heart into his chest and the other half into hers.

Killian immediately dropped his sword. He stumbled back and sucked in a shaky breath.

"Killian? Are you okay?" Emma asked.

Killian looked up at Emma. A smile appeared across his face. He took a step towards Emma. "Thank you." He pulled her into a kiss.

Emma relaxed. He was okay. He was alive.

When they pulled away, Emma set her forehead against his. "We need to get your heart back."

Killian nodded. "Aye, we do, but not yet."

Emma smiled. "Well, at least we know she can't control you now."

"Aye. How did you know that it would work?" Killian asked. He pulled away and looked at her in wonder.

"I didn't."

Killian chuckled.

Emma smiled. "I just took the risk."

"Of course you did."

Emma laughed. "I'd do anything for you."

"And I you."

I hope you enjoyed that chapter!