Unspoken Agreement Chapter 3, a life with derek fanfic

A/N - Sorry! Late again. The plot bunnies kept evading me. Anyways, here's Chapter 3, hope you like it. - sorry for the lack of Casey/Derek interaction for the first bit, but I felt it important to mention the rest of the family, at least fleetingly. It just reminds everyone that although these two live in a world of their own completely absorbed in each other, whatever they do have consequences, and most of them are not pretty. Also.. this chapter is a bit.. explicit.. couldn't help myself.. so.. it's bordering on an M rating I think... So if you're offended by that sort of writing, I suggest you don't read.

Enjoy!

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Chapter 3------

She was holding her breath, and who could blame her? On her left was her best friend, dressed innocently in white, standing at an alter in front of God and his priest, while on her right, was the man she used to date, the best friend of the groom, step-brother of the bride who he slept with, as well as share a brother with. Her gaze fell on the people seated behind her, focusing mainly on the little boy who was too bored with the proceedings to tear himself away from playing with the white rose on his jacket. Her glace shifted back to her ex, who at least had the decency to look away. He probably knew that she knew. She stared him down as much as possible hoping to increase the feeling of guilt that should be overwhelming him.

"Do you, Casey, take this man to be your lawful wedded husband? To love and to cherish, to have and to hold, through sickness and in health, and forsaking all others to keep yourself only to him for as long as you both shall live?"

Derek's head snapped up, and she could swear, even though she couldn't see her best friend's face, their eyes met. "I do."

She let out a low breath. One hurdle was completed. At least Ben was still grinning.

"And if anyone objects to this couple being wed, speak now, or forever hold your peace."

She didn't have to guess this time. Casey glanced at Derek, her gaze speaking volumes. His eyes bore into hers, and suddenly, her breath got caught again. Surely, he wouldn't protest. Derek straightened, Casey's eyes widened, and Emily prayed three little words. Please don't speak!

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If she continues breathing, maybe it will all go away. The mess she had tangled herself into will disappear and she will wake up having never slept with her brother's brother. That sounded wrong, just as she thought it. She was breathing. Inhaling. Exhaling. Inhaling... and shockingly, it wasn't helping.

"Oh, honey, you look beautiful." Nora sighed excitedly as she placed her arms lightly on Casey's shoulders. Their eyes met in the mirror.

"Mom, I haven't done my hair or makeup yet." Casey said amused as she rolled her eyes.

"I know. But my baby girl is getting married today, so I think she looks beautiful no matter what she wears." Nora grinned when she noticed her daughter blush.

"Thanks, mom."

After a moment of playing lightly with Casey's waves, Nora looked at her daughter seriously. "Everything okay with you and Emily?"

"Yeah. Everything's fine. Why?"

"It's just.. she didn't know what time you were getting ready, or which room you were in..."

Casey's eyes widened. "Did you tell her?"

Nora raised her eyebrow. "Why shouldn't I tell her?"

"Huh? Uh.. no reason.."

"Why are you avoiding her?"

"I'm not avoiding her."

Her mother looked at her. "Seems like you are."

Casey's eyes fell away as she moved towards the dress hanging a few feet away from her. "Well I'm not. It's just a misunderstanding. It'll be fine." Her fingers played with the light material, the beads sparkling under the natural light flowing through the windows.

Nora watched her silently for a few seconds before she sighed in defeat. "I'm sure it will be. Regardless, today is your day, and in the spirit of ensuring that everything goes your way, I think it's time I go and pick out George's tux."

Casey eyed her mother hopefully. "Please make sure he won't wear the blue prom one with the ruffles."

"I'll tazer him if I have to, honey." Nora smiled lightly before kissing her daughter on the cheek and bidding goodbye. Casey watched her mother leave before she rubbed her eyes in an effort to keep herself awake. Unlike any other bride, the restless night she suffered was not due to any thoughts of her future husband.

Emily had already eyed her prey before she pounced. Smiling evilly, she crept under the countless working bodies as chairs and decorations were being lifted around her, sneaking up behind at least one of the two main people she wanted to speak to.

"Derek! Can I talk to you for a second?"

He jumped, leaping a good three feet away from her. "Actually..." He looked around. No doubt looking for an excuse that could keep him busy. "I think I'm needed.." He looked around again. "There!" He pointed randomly. Just as he started walking, he was pulled back roughly when her grip on his shirt tightened.

"I would really like to talk to you." She hissed, earning a curious glance from Jared, the other groomsman.

Derek smiled sheepishly before leading her out of the dining room. "Sure! I don't mind talking about the rules about the wedding." He said loudly, ensuring that everyone else simply thought that this was a pre-requisite to any family event to make sure that he behaved.

Emily let him lead her to a secluded room before she turned against him. "You slept with Casey?"

He winced. "The term 'slept with' has many meanings."

She rolled her eyes. "Okay. Let me clarify it for you. Did you, or did you not have sex with Casey, your step-sister, days before her wedding?"

Derek straightened in defence. "Hey! Just so you know. It takes two to tango."

"Derek!"

"Look, it was a one time thing." He said innocently. "Sort of." He then added as an after thought.

"What? What do you mean by 'sort of'?" She asked skeptically.

"I don't know." He shrugged. "We just.. it just.. happened..."

"How does a person 'happen' to have sex?" Emily started, but then changed tactic as a thought struck her. "And you still didn't tell me why you sleeping with her was only a one time thing.. sort of."

Derek looked up thoughtfully. "The thing is.. we might have done some other... similar... things."

She was getting a headache. "Like when?"

He looked down, ashamed. "Like last night." Just as she was about to retort, he interrupted her. "But I stopped it from going any further."

"Oh. Well then I'm sure you would like a medal for that honourable decision then."

Derek rolled his eyes. "You don't have to be sarcastic." He put his hands in his pockets, in an effort to look casual. "It won't happen again."

After watching him for a moment, Emily raised her eyebrows in realization. "Why don't I believe you?"

He scoffed. "Because it's Casey! Casey! She is the last person I would ever..." He trailed off, the words eluding him.

Emily decided to help. "Sleep with?"

His eyes narrowed. "Twice."

"You're right. Twice is too much." She snapped. "Derek! I can't believe that you and she.. and now? Does it have to be now?"

"Nothing's going to happen. It's over." He said calmly.

"You're lying." She said in a matter-of-fact tone. "I know when you lie. So, don't even try to deny it."

He snapped back in surprise. "I'm not lying. I don't care if we never see each other again. She's the one person I can't stand for more than five minutes. And besides, after today, she's Ben's problem."

If his voice hadn't dipped at the end, she would have believed him. Sighing, she rubbed her temple. "Look. Today is her wedding. And if what you say is true, then please, stay away from her."

He scoffed again. "I told you. You couldn't pay me enough to stay in the same room with her."

"Okay then." She let out a relieved breath. "I am going to talk to Casey now and convince her that what happened between the two of you was a mistake. That she is about to marry a gorgeous, kind hearted man. And that you, really don't like her." She watched him carefully, hoping for some hint as to how he really felt about her best friend. Instead, Derek shrugged, his face empty of any emotion.

"Be my guest." He muttered. "Can I go now?"

Eyeing him curiously she nodded, watching him exit in a rather defeated manner. She had butterflies in her stomach. Derek might have said it was nothing, but from what she had heard and seen, whatever was going on between him and Casey is far from nothing.

"You look beautiful, Casey."

Casey blushed as she smoothed down the wrinkle free dress around her. "Thanks, Liz. Although I still think that white is not my colour."

"White is definitely your colour."

They turned around to see Emily closing the door behind her, an affectionate smile adorned on her features.

Knowing that an apology was due, Casey smiled. "Like tangerine is yours?"

Emily let out a light laugh at the memory. "And that is why you're my friend. To make sure that I would never make such a mistake ever again."

Her hidden meaning had all the subtelty of a fog horn. For Lizzie however, the real topic was misconstrued. "I have a feeling you guys are going to talk about some weird adult girl stuff now, so.. I'm going to find Ed." She turned towards her sister. "Whatever you do. Drink only colourless liquids." The two girls watched her leave and waited patiently for the door to close.

"So..." Casey began nervously, looking everywhere but at her best friend.

"So..." Emily took a seat and looked at her expectantly. "I spoke to Derek."

Her dress was suddenly very tight. "Oh?"

"Um.. yeah.. he.. um.. said that what happened was nothing."

Casey turned around under the pretence of getting a glass of water. She never expected this topic to cause her chest to constrict like it was. "He's right." Her voice was shaking.

"That's good. We don't want you to start your marriage on a lie, now do we?" The judgement in her tone sliced through very clearly.

"We didn't plan it happening.."

"...It just did." Emily finished, as she continued to watch her friend curiously. "You know I love you but, I can't just stand aside and let you make a mistake."

Casey looked at her curiously. "Marrying Ben is a mistake?"

Emily's eyes widened in surprise. "No." She said taken aback. "I meant sleeping with Derek."

"Oh.. yeah.. I knew that." She was fidgeting again.

Standing and moving towards her, Emily hugged her best friend. "Marrying Ben is the right thing to do. But it won't be if you're if it's not what you really want." Her arms tightened around her. "You know I'll support you in whatever you do, right?"

"Of course." Casey choked out before she let go and grabbed a tissue. She shouldn't be crying on her wedding day.

"I just wanted to see whether you're okay before I go. I think I saw a waiter placing the centrepiece as two distinct pieces." Casey's eyes widened. "Relax. I'm going over there now to yell at him. Will you be okay?" At her friend's silent nod, Emily let go and left.

Casey stood there for a good five minutes before she sighed, realizing that she felt ridiculous standing in a white dress even though she was about to get married in little over half an hour. Feeling the need to relax and breathe, she opened the door to the patio, stepping outside and breathing deeply. It took her a few seconds to notice a lone figure dressed in black a few feet away, leaning against a more inconspicuous area of a wall. She hated the fact that she could recognize him so easily. The rational part of her brain logically listed down seven reasons why she shouldn't give into her impulse and go to him. Unfortunately, the whole point of an impulse is not to think. While reprimanding herself, she left the patio, lifting her dress to make sure that it didn't hit the ground. Within a few seconds she was by his side, her back stiffening at what she saw. Huffing, she marched up to him, dropping her dress in the process and grabbed the insulting cigarette from out of his hand.

"Are you crazy?" She screeched. "These things will kill you. Since when do you smoke?"

Derek continued to gape at her, before his face settled onto his usual neutral mask. He shrugged. "I'm not addicted, if that's what you're asking."

"That wasn't what I was asking. This is just.." She stared down at the bud in disgust before she flicked it away from them.

Derek continued looking out, trying to ignore her no doubt. "Aren't you supposed to be preparing for your 'big day'?" He asked sarcastically.

Casey winced inwardly. "I've been prepared for the past hour." She ignored his knowing smirk. "Since when do you smoke?"

"What I do with my life is none of your business. And I distinctly remember us agreeing about that several times."

"Normally I would agree. But do you have any idea how many people second hand smoke can kill?"

His glance fell on her slightly before he looked away. "I've never blown smoke in your face."

"I'm surprised you didn't. You know how much I would have hated it."

They stayed silent for a while. Derek looking everywhere beside his step-sister, and Casey, ignoring everything else but him. "Nervous?"

She was startled. "No."

"Since I'm the person you go to, to rid your nervousness, I thought I'd offer my services. It's not everyday you get married, consider it my.. wedding gift." He looked at her then, his eyes dark.

Casey's breath hitched and her jaw dropped. Surely he wasn't saying what she so blatantly understood from that statement. "You're such an ass."

He smirked, his eyes hard. "What originality!"

"If you're still an ass, then what I say will never go out of style."

He leaned forward. "And what makes you think that I'm still an ass."

Her throat felt dry, but she pushed forward. "The fact that you keep hitting on me the day of my wedding."

He seemed to consider this. "Hitting on you implies that I like you, which I don't. I'm just making sure that you don't get cold feet."

She seemed to be moving forward by her own volition. "And sleeping with you before the wedding will ensure me getting married?"

His face was too close. "You said it yourself, I was just used to get rid of your nervousness." His voice was hard, his eyes, darker.

Was it possible to feel anger and lust radiating from one person? "You're right." She deadpanned. "I was."

Derek's eyes sparked with something indeterminable before he grabbed the back of her head and slammed her lips with his. She could feel his body rigid with rage against hers. For once he scared her. She placed both palms on his chest in an effort to pull away, but he stayed glued to her, his arms pinning her body against his. It wasn't supposed to be like this, her lips being bruised under his, her arms being yanked away from him as he pushed himself away from her. He took two steps back, breathing heavily. Casey touched her lips, her fingers trembling. He looked up at her expectantly. She stared back. She knew that she was supposed to be angry. She was supposed to yell at him, attack him for the way he attacked her. But she couldn't. On some undeniably deeper plane within her mind, she understood his frustration and recognized herself as the reason.

"Is that all?" She whispered, her voice trembling.

Derek stiffened in surprise, not expecting this sort of reaction either. "No. That's not all." He muttered grimly before he advanced towards her. This time, she was ready, responding eagerly, her own arms circling around him without much thought. The kiss was rough. The frustration within him could be felt easily with every jerky movement to bring her closer. He grabbed at her in an unrefined manner, something she knew from experience was not how he usually handled women. He slammed her against the wall, and for a split second, Casey mentally thanked her mother for picking the wrinkle free material of her dress. He bent down and lifted her easily by her thighs, her legs wrapping around him voluntarily, their movements quick. After a moment, he suddenly stopped, looking at her, his eyes questioning what they were doing. Casey felt her breathing slow down as she pulled him closer, kissing him deeply. Somehow she knew he wanted to talk, but she didn't think she could handle it. Not now. Not while he was pressed so closely against her, and the memory of two nights ago was burning an imprint on her brain begging her to do what they did then. He responded, his tongue meeting hers. His hands just simply touching her all over. Casey knew it was going to be a repeat performance when he buried his face against her neck, his breathing laboured, and she felt his hand slowly travel up the inside of her thigh. Closing her eyes, she let it happen. How could she not when he just felt so good inside her?

Emily walked in just as Nora and Lizzie were fussing over Casey's dress. "What happened?" She asked curiously.

Nora sighed as she continued to pin up the bottom of the dress to an agreeable height. She and Lizzie sent each other a look of pure exasperation as they tried to bring back the dress to it's original white pearl sheen.

Casey's eyes looked down embarrassed. "I went for a walk, and I fell."

"You fell?" Emily asked carefully as she came forward to observe the back of the dress that Lizzie was trying to rectify with a liquid specialized for stain removal.

"Yeah." Casey mumbled nervously. "Klutzilla, you know."

Nora stood up, holding out a handful of pins towards Emily. "Could you do the bottom? I'll try helping Lizzie. We have to get this dress ready in fifteen minutes."

"I'm sorry, Mom." Casey whispered, earning another curious look from her best friend.

Sighing in frustration, Nora's features broke into a tight smile. "It's okay, honey. We all know that weddings are stressful, especially for the bride. It just couldn't be helped. You couldn't have known that you would trip and fall. Although it would have been great if you had changed before you had gone on the walk. But it's okay." She let out a low breath in concentration. "We can do this."

Emily continued staring at the bride to be who looked at everything but her. Somehow, her gut said that a certain brown eyed man was involved, although she had no proof.

Casey whipped around. "Don't say it." She hissed, but Emily looked at her innocently.

"Don't say what?"

Casey looked over her shoulder to make sure that her mother and sister were still talking with the rest of the family. "I know what you're going to say. It's over. Derek and I are completely and utterly over, okay?"

Emily nodded, her face one of disbelief. "Okay. I believe you." She pulled down the veil setting it over her friend's features.

"I'm serious, Em."

Emily looked at Casey seriously. "I know you mean it now."

Casey sighed. "Emily..."

But she was interrupted by the arrival of her mother and sister. "Ready?" Nora asked beaming proudly.

Emily saw Casey's less than enthusiastic smile before she spoke. "I'll go get the bouquets." She headed towards the table with the flowers, and noticed the groomsman in a huddle around the corner, waiting for the proceedings to start. Derek ignored her. But keeping her courage intact, she grabbed the bouquets, and headed towards him. Pulling him roughly, she brought him aside.

"Look, I don't know what's going on with you and Casey. But if you want her, man up and get her." She hissed. "Don't be a coward and pine after another man's wife." Letting him go quickly, and satisfied with his surprised expression, she went back to her bridal party. They had a wedding to go through.

A/N - oooh.. Cliffhanger.. I'm sorry. Please review and tell me what you think. If you were in Casey's position, what would you do?