Lizzie covered her mouth when she saw Casey. "Casey?" she said confused. Looking to the other person, she saw him. Derek. Her stepbrother. Edwin's brother. (A/N: Okay, there is going to be slight Dasey in this story too!)

Apparently Casey and Derek were as surprised Lizzie and Edwin because they both went flying off the desk they were sitting on. "Yes Lizzie?" Casey asked her sister. Her brown hair was down out of its bun and tangled.

Derek looked just as disheveled. His brown hair which normally lies flat was now tangled and half of his coat was off. He shot Edwin and Lizzie a look and opened his mouth to say something, but Lizzie cut him off.

"What are you doing?" Lizzie practically shouted. It took a squeeze on her shoulder from Edwin to calm her down. Out of the corner of her eye, she saw him clenching his jaw. Casey and Derek had never stooped this low, even for revenge. Actually, Casey had never gone this low, even for revenge.

Casey nervously scratched her arm, trying to answer her sister. How was she supposed to tell her 15 year old sister that she was sort of dating their stepbrother? Wait, who IS that with Lizzie? Ray? No. Chad? No. Jeremiah? No. Scott? No. E- Casey's thoughts stopped when the light from the outside window shone on the boy. None other than Edwin Venturi. Narrowing her eyes at Lizzie and Edwin, she crossed her arms in front of her chest. "I could ask you the same thing." She said looking to Derek. (A/N: There's the Casey we know and love!)

Apparently Casey's words stunned Lizzie and Edwin into silence, since no one was speaking. Derek was quiet too. It actually took a hard glare and nudge from Case to take Derek out of his thoughts. "What she said." He said yawning slightly.

Lizzie rolled her eyes at her stepbrother. That was a typical Derek. Make out with someone and act all nonchalant about it. Well, it was actually kind of hard to explain to her older sister about what was going on. Though making out with Derek did qualify a girl to explain something when cornered. "Well, I was looking for my history class. It's my first day to a new school. Don't get all third degree on me!" Lizzie said angrily. She shot Edwin a look, telling him to back her up.

Edwin's mouth dropped all the way to the floor at what Lizzie said. Quickly, he regained his composure. "Yeah. We forgot some notes that Mr. Norris is the new teacher for freshman and he believes in starting early!" he said rolling his eyes. All of this was true; except for the whole: 'we forgot some notes' part.

Casey looked skeptical, but caved. "Alright, well, your history class is upstairs two classrooms on the right." She instructed. Hopefully, the two forgot about their question. Since they didn't bring it up, she decided to fix her hair quickly and help Derek with his. Boy was Casey wrong. Because just then, two certain people walked by. Apparently Edwin noticed and nudged Lizzie in the ribs and pointed to the two.

Both kids smirked. Lizzie waved at Emily and Edwin waved at Sam. Sam and Emily, upon seeing Liz and Ed, walked over. Edwin shot Casey and Derek a look that read, 'Better get something straight.' Smirking, they both waited for the other two to approach.