A/N: God, I'm sorry this took me so long to write. This is exactly why I don't do chapter stories; it takes me forever to get motivated to update. But I will admit, I was stuck on this. I wasn't expecting to write a part two, but since nearly all of you asked for one, I had to do it. Thank you to all who reviewed last time, here is your long anticipated sequel. (:

---

Payback Part Two

For the first time in his life, Derek Venturi had nothing, and by that, he was out of ideas to get Casey back, which had never happened before. And the more he thought about it, the more it pissed him off. He was tired of walking around to seeing Casey smirk at him. She thought she really had him stumped…and she really did.

Derek sat at his desk with the door closed, his head propped in his hands as he stared at nothing. The prospect of getting back at her was dimming down, and he was just planning on giving up, there was nothing wrong with letting Casey win this one time…

A knock on the door interrupted his thoughts. “It’s open,” Derek called without looking. Hearing the door creak open in its familiar pattern, he knew who it was. “What is it, Edwin?”

“I wanted to talk to you about something important.” Derek glanced over at his younger brother and saw that he was serious. Edwin came into the room, closing the door and going to sit on the bed. “It’s about your payback.”

Derek rolled his eyes as he turned away from Edwin. “I don’t want to hear about that.”

Edwin stared at Derek. “You still haven’t thought of anything haven’t you? You’re gonna let Casey beat you like that?”

“Why does it matter to you?” Derek retorted, frowning at Edwin. “You and Lizzie were the ones who helped her get me.”

“I know. But I realized that I shouldn’t have. Because brothers need to look out for one another.”

Derek didn’t believe Edwin at all, but just went along with it. He needed his younger brother’s devious mind on his side at the moment. “Alright then. I can’t believe I’m asking this but…what plans do you have..?”

Edwin slowly began to smirk. “I’m so glad you asked me that, dear brother…”

--

Nearly a month after Casey’s prank, Derek’s plan was set to act. Edwin had basically the same thing in set for him that he did Casey…except, he needed a decoy to help make it more believable. With just one simple talk, Derek had no problem with convincing Sam’s cousin Amber to join in on the escapade. She was almost like an older version of him, except more beautiful and more believing. This plan was sure to work.

It was movie night yet again at the Venturi-MacDonald household, and Casey, Edwin, Lizzie and Marti all decided to watch Bolt.

“Smerek are you gonna watch it too?” Marti asked cutely from the couch.

“Not tonight, Smarti.” Derek put on his jacket. “I have a date to go on.”

“A date?” Casey raised an eyebrow. “Who in their right mind would want to go anywhere with you?”

Derek chuckled. “Don’t be jealous Casey because you have nobody lining down your block.” He smirked when Casey scowled at him, slumping even more into the couch. He heard the door being knocked on, and he went to answer it. Opening the door, he saw Amber smiling at him on the porch. She was wearing a little black dress with stilettos and enough curves to give Beyoncè a run for her money.

“Hey Derek.” She smiled at him as she tossed her platinum blonde hair over her shoulder, silver blue eyes shining brightly. “Ready to go?”

“Yup. Oh wait, why don’t you come in and meet the family?” Derek stepped to the side as Amber came in, revealing smooth, flawless long legs. “Amber, this is the family. Family, this is Amber.”

Casey’s mouth dropped to the floor, along with everyone else’s. Amber smiled, waving shyly at the bunch. “Nice to meet you guys.”

“Nice to meet you too,” Edwin spoke up, smiling dreamily. Both Marti and Lizzie nudged him hard.

“Okay, let’s go Amber, their movie is starting.” Derek gave them all one last look, satisfied to see an angry expression on Casey’s face before leaving out of the door. “Good job, Amber. Casey was totally jealous.”

“Yeah, she was practically burning daggers at me,” Amber said as they got into Derek’s old pickup truck. “We’re still going to see 17 Again?”

Derek rolled his eyes. “Fine. But next time I choose,” he stated as he started the car, Amber giggling at him as they rode to the movies.

--

For the next two months it went accordingly. Derek brought Amber over nearly every weekend. Even the family was beginning to enjoy her. Although Casey never mentioned her, Derek could tell that she was getting more and more peeved. It wouldn’t be long before she caved in, Derek assumed.

Derek came back one night after hanging with both Sam and Amber, to discover the house was dark. It was nearly midnight, and everyone had gone to bed. He closed the door gently, creeping upstairs. He made it blindly to his room, opening the door and flipping on the lights to nearly jump out of his skin seeing Casey sitting at his desk.

“Very funny Derek.” Casey had her arms crossed, looking stern.

“Funny about what?” Derek gave her his best look of confusion as he tossed his jacket to the side, coming to sit on the bed.

“This whole Amber scheme.” Casey shook her head disapprovingly. “How dare you use a poor innocent girl like that to get back at me.”

“Poor and innocent?” Derek laughed. “Okay, first of all, Amber is not all that innocent my poor, naïve stepsister. She’s actually enjoying this little scheme I put together. And to be honest with you, it started off as a plan, but I think it might be turning into something else…”

He hadn’t meant that last sentence, but he only said it to test Casey. The look of disapproval on her face faded away. “What’s wrong with you?”

“Wait…so you’re actually starting to like this girl?” Casey blinked uncertainly.

“I think so…and I think she feels the same way too. Who would’ve ever thought for once I’d get a girl.” Derek shrugged as he stretched his arms behind his head, laying back on his bed.

“O-oh.” Derek could see Casey visibly looking uncomfortable as she stood up, and something else he hadn’t seen from her in a while. “I…I guess I’ll see you later then.”

But before she could leave, Derek had hopped up, beating her to the door. He blocked it with his back. “Wait a minute Casey…are you jealous?”

Casey sighed heavily. “No Derek. I’m just surprised that you’ve changed your ways. That’s all. Now if you’ll excuse me…”

“You’re not telling the truth.” Derek hadn’t broken eye contact with her, and he knew she was lying from her lack of eye contact. “Casey MacDonald, you’re jealous aren’t you?”

There was a long silence, and then finally came Casey’s mumbled answer.

“What was that?” Derek put a finger to his ear, leaning closer towards her. “I couldn’t hear you.”

“…Yes,” Casey said a little louder, still not meeting his eyes.

Derek smirked. That’s all he wanted to hear from her. “You don’t have to be, Case.” He reached over, pulling her closer towards him so that their fronts were touching. “But still, I have to get you back for what you did to me three months ago.”

Casey looked at him and she smirked. “Well then, what are you waiting for?”

Derek smiled genuinely before leaning in, capturing her lips with his. God, he had missed the last time they’d done that. He wrapped his arms around her waist, pushing himself off the door and walking forward, forcing her to walk backwards and fall gently into the bed. He climbed after her, hovering over her as he initiated another deep kiss, pressing his body up against hers.

Casey’s hands moved to rest gently on his chest, kissing him back. She trailed her fingertips all the way down to his pants trying to tease him when he then grabbed her wrists forcing them back to her head, where he held them tightly there.

“Like I said, Casey. I still have to get you back.” Derek smirked at her as he kissed her lips again, trailing down to her neck while he allowed a free hand to travel down her blouse, practically groping her chest along the way.

Casey gasped softly, biting her lip as she felt Derek already harden beneath her. “Doesn’t take much to turn you on, does it?”

Derek chuckled as he slipped his hand under her shirt. “Only you do that to me, Case.” Slowly her clothes began to peel away and soon she was down to just her panties and bra, and he bit his lip as he took her in. How in the world she’d manage to hide all of that, he didn’t know. “Damn.” Inside his pants, he felt like he was about to explode already.

“Come on Derek, teach me a lesson.” Casey mocked him, smirking as her wrists were still under his grasp.

“If you insist.” Derek narrowed his eyes at her as he trailed a hand all the way down to her panties, running a hand teasingly over her thighs as he came back to a particular spot, making Casey’s eyes widen in surprise. He smirked, knowing that he had her completely. He began to stroke her, his fingers gently probing around the area for a while until he saw her start to melt down. He could see her back slowly start to arch, body nearly moving with what he was doing. “You like that, don’t you Case? Of course you do, you’re already wet and I barely did a thing.”

Casey whimpered softly, her breathing becoming short and choppy. She struggled slightly to get out of his restraint, but it was no good. “Derek…”

Derek knew he was getting to Casey, but he felt like he was torturing himself more. He managed to move the fabric aside, and without warning he slipped a finger gently and slowly inside of Casey. She gasped loudly in shock, her mouth forming a big wide ‘O’. “Calm down, this won’t hurt,” he assured her softly as he began to pump his finger in and out of her. “Let me know if I am hurting you.”

“Oh…Oh…” Casey moaned loudly, throwing her head back against the bed. Derek had to shush her by pressing his mouth firmly against hers. He did not want to end up explaining to their parents what was going on in here. Gradually, he added a second finger and increased his pace. By this point Casey was totally in his control. He could tell just how much she loved it by the way her body writhed in pleasure under him. He knew it wouldn’t be long before she would finally climax. He counted to about two more seconds before he suddenly pulled out of her, right before her release. Derek saw the look of confusion on her face, which only made him smirk.

Leaning over her, he reached her ear, whispering, “Not a chance, Casey.”

Derek slid off his bed calmly and collectively, leaving his stepsister sitting up on the bed with her mouth dropped wide open. He couldn’t help but laugh as he left the room, reaching the bathroom before he heard Casey shriek his name.

Can’t trick the trick master Derek thought, his smirk growing as he headed towards the sink to clean off his hands. It was a good battle, but in the end, it was him who emerged victorious once again.

He was unbeatable.

---

A/N: Aha, I'm sorry. But I couldn't let Casey win. Derek IS unbeatable, admit it. I think this sucked though, it took me so long to write it for you guys. But I hoped you enjoyed it while it lasted. And don't forget to review and tell me how I did. (: