I am so sorry for the wait! Enjoy :D

Charlotte stayed the night. Not that she had much choice in the matter. Klaus was insistent that she stay the night with him and would stare at her icily ever time she mentioned returning home. Eventually, she gave in. She knew that it was probably best for her to spend the night with Klaus rather than return home; give her brothers a chance to process the news of her and Klaus's relationship and calm themselves. However, Charlotte knew she would have to face them tomorrow and provide an explanation for her actions.

That night was the first night Klaus had admitted to being in love with Charlotte; something he himself had not realised until the second after the words had left his mouth; words that he would not be able to take back even if he wanted to. The damage had been done and now Klaus would have to account for what he had done.

Lying across from a sleeping Charlotte, Klaus knew he should be concerned about facing the scrutiny of the Salvatore men but he could not bring himself to care. He had spent hours affectionately kissing Charlotte and making love to her throughout the night; stopping only as it began to approach dawn and Charlotte begged him to let her sleep.

Turning his face so he could read the time on his alarm clock, Klaus sighed lightly. It was approaching noon. Eventually, he would have to leave his bed and face the world outside. A loud banging at the door to his apartment had Klaus leaping from his bed and caused a sleeping Charlotte to wake suddenly, startled.

"What the hell?" Klaus mumbled under his breath to himself as he pulled on a pair of jeans and a t-shirt.

Klaus had a pretty good idea who was banging on his door and he suspected that opening the door in just his boxers with a naked Charlotte in his bed would not appease his visitor.

Walking down the hall and through the living room, Klaus reached his apartment door quickly and flung it open. Before him stood Damon and Elena. Klaus had expected to see Stefan standing beside Damon, not Elena, but Klaus suspected the woman had insisted on accompanying the oldest Salvatore brother in order to minimise the damage.

"Hello, Damon."
"Where the hell is my sister?"
"She's in bed."

Klaus did not miss the look of pure fury that crossed Damon's face as he took in the meaning of Klaus's three words. Damon hated the idea of anyone touching his only sister and he was not an idiot; for Charlotte to be in Klaus's bed meant only one thing.

Elena too, saw the expression on Damon's face and was more than aware that her fiancé was only just restraining himself. To Elena, it did not matter that Klaus was six years older than Charlotte. Damon was three years older than Elena and they had begun dating just before she turned eighteen. However, Elena could understand why Damon was so upset. Charlotte was his only sister and he was extremely protective of her; Damon did not want to see her hurt in any way.

"Then get her out of bed." Damon spat out through gritted teeth.

He felt foolish that Klaus and Charlotte had been sleeping together for months and he had not noticed that anything was going on between the two of them.

Sighing, Klaus opened the door further and allowed Damon and Elena to enter his home. Closing the door behind them, Klaus smiled slightly at Elena and then turned his attention back to Damon, whose face was like stone as he continued to glare at Klaus.

Grimacing, Klaus turned away from the two guests and began to walk down the hall to his room. He did not want to take Charlotte to Damon but he didn't see any other option available to him. Entering his bedroom. Klaus found Charlotte sat up in bed, still naked, and watching him intently.

"Damon or Stefan?" Charlotte asked; hoping that it was Stefan who had come to the apartment as she knew she could reason with Stefan much more easily than she could with Damon.
"It's Damon, but Elena's with him."

Flinging herself back down on the bed, Charlotte let out a groan. Klaus wished she had not so. Charlotte's sudden movement had caused the bed sheets covering her to become loose and Klaus was gifted with a sneaky glimpse of Charlotte's naked body. He wanted nothing more than to join her in bed but he knew he had to deal with Damon.

"Love…" Klaus began, lifting Charlotte to her feet and handing her, her underwear. "He wants to see you. I think you had better get dressed."

Taking her underwear from Klaus, Charlotte pulled them on and grabbed the dress she had worn at the party the night before. She was dressed within seconds but did not feel ready to face her oldest brother.

"Ready?" Klaus asked Charlotte.
"No, but do I have a choice?"
"I don't think either of us do."

Taking Charlotte's hand in his, Klaus led them from the room and down the hall to were Damon and Elena were standing, waiting for Klaus to return with Charlotte. Damon did not appreciate the way Klaus was grasping Charlotte's hand; flaunting his relationship with his sister.

"What do you want, Damon?" Charlotte asked.
"I want you to come home."
"Are you going to stop acting like a dick?"
"Are you going to stop seeing Klaus?"
"No."
"Then no."

The two siblings sighed at one another. Damon loved his sister dearly and did not want to fight with her or do anything that would push her away, but he couldn't approve of her relationship with a man he once considered to be his best friend.

"I don't understand why you're so upset, Damon."
"You're eighteen! You're still in school!"
"What the hell has age got to do with it? It's not like I'm getting married. I'm just in a relationship. Would you rather it be with someone you didn't know or trust?"
"I don't trust Klaus; not anymore."
"Then you're an idiot. Klaus has been nothing but lovely to me. He's known me my entire life, Damon. You know he would never hurt me."

As much as Damon hated to admit it, Charlotte was right. Damon had been friends with Klaus for twenty years and knew that the man had been nothing but kind to his sister from the day she was born. Klaus, Damon knew, would never hurt Charlotte. However, that didn't mean Damon had to like the fact that they were in a relationship.

"Damon, she's right. Just listen to her." Elena pleaded with Damon. She could already see his anger disappearing.

Looking away from Charlotte, Damon focused his attention on Klaus.

"You love her?"
"I do."

Damon fell silent; taking a moment to think quietly to himself.

"Do you love him?"

Charlotte froze. She had not expected her brother to ask her such a question. Beside her she could feel Klaus tense up in anticipation for her answer. He had made it clear that he loved her but she had said nothing of the sort.

"I think so." Charlotte answered as truthfully as she could.
"Fine. But Klaus, if you hurt her, I'll kill you."
"I won't."

A second later, Damon left the apartment with Elena and Klaus and Charlotte continued to stand next to one another.

"One brother down, one to go." Charlotte stated.

A week later, Klaus was found in his office speaking with Elijah when he happened to look upon the clock on his desk. It was just after three in the afternoon. Charlotte would be finishing school soon and Klaus wanted to be there to meet her.

Catching Klaus staring at the clock, Elijah smirked. He had witnessed his brother's kiss with Charlotte at their parent's New Year's Party but unlike some other guests, he had not been surprised. For months he had suspected Klaus was involved with a woman and from the sneaky looks he gave Charlotte when he thought no-one was looking, Elijah had concluded Charlotte was his secret woman.

"Go."
"What?" Klaus questioned Elijah; confused by his brother's words.
"Go. Charlotte will be finished with school soon."
"I can't. We have so much to do here."
"Niklaus, just go. I can handle it on my own."

Grinning at his brother, Klaus thanked him and left the building quickly. It was freezing cold outside and Klaus reached his car quickly; glad of the warmth and shelter it provided him.

Arriving at the school within minutes, Klaus left his car and walked towards the entrance. Crowds of high school students of all ages surrounded him as they each made their own way home and he waited patiently for Charlotte.

Leaving the classroom of her final lesson for the day, Charlotte found Emma waiting at the door for her and smiled. News about her and Klaus had travelled quickly and since Emma was still dating Kol, Charlotte knew that her best-friend would know about the relationship by now and would be expecting gossip.

Walking down the hallways and towards the main exit together, the two girl chatted excitedly.

"I can't believe you've been with Klaus this entire time!"
"It hasn't been that long, Emma."
"You should have told me. I mean, seriously, we're both dating Mikaelson boys!" Emma giggled.
"How are things with Kol?"
"They're great! I like him so much."
"Well, at least he's not being a douche."
"How are things with Klaus?" Emma asked, wiggling her eyebrows suggestively at Charlotte, making the girl smile and laugh lightly.
"Amazing. Damon's left us alone. Stefan seems to be handling it. My dad didn't even bat an eyelid much to my brothers' annoyance."

Almost at the front gate, Emma stopped Charlotte suddenly and turned to her.

"Are you in love with him?"

Shaking her head in an effort to shrug of Emma's question, Charlotte began to walk once more and noticed Klaus standing at the front gate, waiting for. Charlotte felt her breath catch in her throat at the sight of him and she couldn't stop a grin from forming.

"Well, do you?" Emma asked quickly, wanting Charlotte to answer before they reached Klaus.
"I think I do." Charlotte replied; her eyes still on Klaus who had now noticed her too and was smiling back at her.

"Hello, love." Klaus said, kissing Charlotte lightly on the lips. "Hello, Emma."
"Hi, Klaus." Emma smirked at Charlotte.
"Do you need a lift, Emma?"
"No, thanks. I'll leave you two love-birds alone. See you tomorrow, Charlotte."

Emma smirked at her friend once more before hugging her and whispering that she expected full details the next day, before taking her leave. Entwining his fingers with Charlotte's, Klaus led her to his car and opened the passenger door for her.

"What a gentleman."
"Always." Klaus smirked before closing the door and entering his own side.
"Shouldn't you be at work?"
"Elijah told me to go early. I think he could tell that I wanted to see you."
"You're so impatient."
"It's been two days! Do you have any idea how difficult I'm finding it keeping my hands off you right now?" Klaus asked rhetorically, taking the turn that led to the Salvatore Boarding House.
"I think I have some idea." Charlotte replied, running her hand teasingly up Klaus's leg as he continued to drive.

In no time at all, Klaus arrived at the Boarding House and parked the car. He had tried in vain to ignore Charlotte's hand on his thigh during the drive but his body had reacted strongly to it.

Grabbing her hand, Klaus stared straight into Charlotte's lust-filled eyes.

"Love, do not start something you don't intend to finish."
"I'd never dream of it, Klaus."

Charlotte pressed her lips forcefully against Klaus's and heard him let out a small moan. Breaking away from the kiss, Charlotte exited the car and walked towards her house; dragging Klaus along with her. The moment they were through the door they were on each other again; lips crashing together and hands searching each other's bodies hungrily.

They reached Charlotte's bedroom within minutes and slammed the door shut. They did not want to be disturbed.