A/N- Wow it's been long since I've updated. Sorry! Hope you like it!

WARNING! Some of the parts in this chapter are kind of M rated.

Disclaimer- I don't own LWD.

Derek had put everything from the night before out of his mind. He woke up and went downstairs and saw everyone, including Casey, eating breakfast. Derek reached over and grabbed a piece of bacon.

"Derek, are you giving Casey a ride this morning?" George asked.

"Yeah, I guess," Derek shrugged.

George glanced at his watch.

"Alright little ones. Go get in the car so we can go," George told them. Lizzie, Edwin, and Marti left the house to get in the car.

"Okay. We won't be home after you guys get out of school because we have to take them to their dentist's appointments," Nora informed Derek and Casey.

"Okay. Bye Mom. Bye George," Casey shouted as the adults scrambled out the door.

Derek sighed and sat down at the table. Casey stood up and put her plate in the sink.

"Okay. I'm going to go to the bathroom and then we can go," Casey said.

Derek knew why but he was definitely staying out of the situation.

Casey came back downstairs a few minutes later.

"Alright. Let's go."

They both got into the car.

Derek, being his regular boy self couldn't help but stare at Casey and her ensemble. She had on a light pink halter top, a dark denim skirt, and light pink flats.

"I, um, like your…earrings," Derek commented.

"Thanks," Casey said as she tugged at her pink earrings.

"Hmm…I think somebody likes me. I could have some fun with this," Casey thought to herself.

"So, Derek," Casey began to say in a low and seductive voice, "You dating anyone recently?"

"Um…no."

Derek hadn't even started the car yet. He turned and faced Casey. He stared into her eyes and then down to her chest.

"Oh. Well, that's a shame," Casey said as she placed a hand on Derek's thigh.

Casey sat there, a hand on his thigh, wondering where this newfound confidence had come from.

Derek inched closer. "Yeah, it is."

Casey stared into his eyes. She lunged forward and placed her lips on his. She moved so she was sitting in his lap. He wrapped his arms around her waist as she kissed him harder. A few minutes passed when they both snapped back to reality.

"Wow," Casey said as she tore away from Derek's lips, "I guess we should, um…get to school."

"Yeah. School," Derek said as he stared at Casey in astonishment.

She climbed back over to her own seat and flattened her skirt down.

The drive to the school was silent. When Derek pulled into the parking lot and stopped the car, Casey leaned closer to him. She kissed him again, except this time with more passion and love.

"I'll see you later," she whispered into his ear.

She got out of the car.

"Yeah. Later," Derek said, still a little shocked over the series of events that had previously occurred.

-DASEY-

Casey walked into school, Derek treading behind her. Everyone turned their heads and looked at her.

"Wow. I must look really hot today!" Casey thought to herself.

Casey walked right over to Max's locker and Derek watched her from his.

She grabbed Max by his shoulders and roughly kissed him. He placed his hands on her hips and joined in with the kiss.

Finally, the two broke apart. "See you at lunch," Casey winked at him.

He watched as Casey walked past him. She winked at him in the most seductive way he'd ever seen her. Something was definitely wrong about this.

----DASEY-DASEY-DASEY-DASEY-DASEY-DASEY-DASEY-DASEY-DASEY----

Derek walked into the house and saw Casey sitting there watching TV.

"Where is everyone?" he asked.

"The dentist. Remember?" she answered him.

"Oh boy," Derek thought to himself. "This is not good."

"Listen Derek. About earlier. I realize I may have been a little inappropriate," Casey began to say. Derek walked over and sat down next to Casey…close.

"There was nothing," he started to say as he placed a hand on her upper thigh, "inappropriate about what happened. It's completely fine Case."

Casey looked him in the eye and before she knew it, she was sitting in his lap and they were making out. Casey laid down on the couch and Derek laid on top of her. They continued to kiss and Casey did nothing when Derek took off her shirt. Casey used her hands and took his shirt off too. Derek reached around Casey's back to unhook her bra but seconds before he did so, Casey put a hand on his chest.

"Derek. Are you sure that we should…do this?" Casey asked.

"Yeah. Of course. Why not?" Derek said. He kissed Casey on her neck and unhooked the bra.

He tossed it away and it landed on the TV. Casey giggled as Derek kissed her. The rest of the time that Nora and George and the kids were away, was an unforgettable time for Derek and Casey.

----DASEY-DASEY-DASEY-DASEY-DASEY-DASEY-DASEY-DASEY-DASEY----

The whole night before had been absolutely awkward, especially at dinner. Now that it was morning, Derek and Casey could barely look at each other with a straight face.

Derek felt like screaming when he saw Casey walk down the stairs and into the kitchen. She had on a skirt, shorter than yesterdays, and a pink strapless midriff. She had on gladiator sandals and some lipstick.

"Wow. Hot…but slutty," Derek thought to himself.

"Whoa. Casey, honey, is it just me or has there been… a slight…wardrobe change? And you definitely look like you've lost a couple pounds," Nora said as she looked at her daughter.

"Well, yeah. I have to. It's all part of my modeling Mom. Don't worry," Casey said.

Nora sighed and still seemed unsure. "Alright. I have to go to work early. George and the kids already left. They have some breakfast thing….Shit. I'm going to be late. Bye. See you both later," Nora shouted as she grabbed her purse and rushed out the door.

As soon as Nora was out the door, Casey bent over to "fix" her sandal and flashed Derek her hot pink thong.

"Oh Case," Derek whispered to himself as he stared at her. Casey smirked to herself and stood back up.

She walked over to him and sat in his lap.

"Listen Derek. I don't want this to be different or weird between us," Casey started. "We can do what we want, when we to." She leaned in and whispered into his ear. "Nobody has to know."

This set him off. He grabbed her by her shoulders and started to kiss her. He pushed her up against the counter and kissed her roughly. He kept his hands at her waist and she kept hers at his. They were disturbed by the doorbell at the front door. Casey gasped and grabbed a mirror form her purse to wipe off the lipstick. She ran to answer the door. While she did that, Derek wiped the lipstick off of his lips also.

"Max! Hi baby!" Casey said when she answered the front door. Her boyfriend Max wrapped his hands around her waist and kissed her. She put her hands on his shoulders and kissed back. He shut the door with his foot and lifted Casey about.

"I've missed you so much," Max said to Casey.

"I've missed you too," Casey said as she kissed his neck.

He slipped his hands around her waist and brought his hands underneath her skirt.

"Oooh. A thong today," Max whispered in her ear.

"Yeah. I know how much you like it," Casey whispered back.

Derek watched from a distant and couldn't believe what he had gotten himself into.

----DASEY-DASEY-DASEY-DASEY-DASEY-DASEY-DASEY-DASEY-DASEY----

"I just can't believe it. We flirted, then we did it and then we flirted again and then she blatantly makes out with her boyfriend in front of me," Derek told his best friend Sam.

"I think you should just stop messing around with her. That'd suck if Max found out. One, he'd be heartbroken. And two, he'd beat the shit out of you," Sam told him.

"She's just so irresistible. Those gorgeous blue eyes, her lips, her hips, her leg, everything! It's just so damn tempting," Derek complained.

He collapsed onto his bed and Sam rolled the computer chair over.

"Listen, if you keep messing around with her. Something bad could happen. You know what I mean?" Sam said.

Derek nodded his head and sighed.

"Alright. I got to go. My mom wants to go shopping," Sam said as he rolled his eyes.

"Wow. That's sucks. Good luck man."

-DASEY-

Derek walked downstairs and held his anger back when he saw Max and Casey making out on the couch. He walked past them.

About a half an hour later, Max was gone and Nora, George and the kids were home.

Derek calmly walked into the kitchen after Nora was settled in and asked if he could talk to her.

"I have something to tell you…," Derek began.

A/N- Okay. I know Casey seemed a little…well, a lot, out of character but that's exactly how I want it for this chapter. So, I hope it didn't suck too badly! Please review and tell me what you think :-D