Author's Note: Sup people! Glad to know people are still interested in the story. Anyway, here's chapter 4.

Chapter 4

Derek's POV

I can't believe I kissed her. It felt so good. But it was an accident. Cause accidentally kissing your step-sis happens all the time. Oh god is she beautiful. It's no use. I know how I feel, and I can't stop lying to myself. Suddenly, I heard a light tap on my door. I slowly got up and answered it; half hoping it was Casey. It wasn't. It was one of the maids.

"Oh, sorry sir. I'll come back later."

"No. I was just about to leave anyway."

She smiled and walked past me into my room. I decided to head down to the bar, only to find Casey there already. I was about to turn the other way when she said, "Hey Derek."

I smiled and took a seat next to her. She was having a Shirley Temple. The bartender gave me a look and I said, "I'll have what she's having." He nodded.

"So…" she said.

"We really need to talk about it." I said.

"Talk about what?" she asked with a smirk.

"You know what." I said smiling. She looked down at her hands, as if they would give her the answers.

"Look, it was an accident." She said. "We both went to kiss each other on the cheek and we ended up kissing on the lips. There's nothing to discuss."

I nodded and that was the end of that discussion. All of a sudden, the song "Barbie girl" started playing. Casey jumped, completely startled, and then she let out a small laugh. She opened her cell phone and put it to her ear.

"Hello?" she said sweetly. "Really? Thanks for the heads up. Mmmm-kay. Bye."

"Who was that?" I asked.

"One of the guys I was talking to earlier. And he told me that there's going to be an awesome rock concert tomorrow."

"Seriously? What band?"

"He said some local band."

I paused and gave her a look.

"Wait a minute, I didn't know you were into that kind of music." I said narrowing my eyes at her. She only smiled more.

"I never said that, and besides it doesn't hurt to give them a chance." I shrugged it off. "So, want to come with?"

"Aren't you going with that guy?"

"No. Come on! I don't want to go by myself. Please Derek." She said giving me her sad face. How can I resist that cute face? I rolled my eyes.

"Ok."

"You rock!" she squealed. She leaned over and gave me a hug and a peck on the cheek. "I'll have to go shopping later. You can help me pick out an outfit."

"I suppose I could help you."

"Well…I'm going to go upstairs and finish my book." She said getting up.

"I thought all your stuff was stolen."

"Everything but my purse which I took with me. And inside my purse were my book and a couple of other random things."

"About that, Casey. I'm sorry."

Casey scrunched her face in confusion and then smiled.

"Did you just say sorry?"

"Yeah…but don't expect it all the time."

She laughed and disappeared inside the elevator.

Casey's POV

I know its wrong to think this about my step-brother, but he is so hot. Lately, I've had these weird feelings around him. And that kiss was amazing. I know it wasn't even a minute that we kissed, but it felt incredible. I walked into my room, took out my book, and sat on the bed reading.

XOX

I opened my eyes to see that it was seven at night. I must have fallen asleep. I sat up on the bed, in search of my bookmark. I found the piece of paper that I folded up to make my bookmark. Out of complete curiosity, I unfolded the piece of paper. I read it and smacked my forehead. SHIT! I practically flew off that bed, and knocked fast and hard on Derek's door. He quickly opened it.

"What?"

"We have…a problem."

He raised an eyebrow.

"I found this in my book and it's the schedule for our field trip." I said walking into his room.

"Your point?" Derek said closing the door behind him.

"The point is that Rome is one of the stops. Which is tomorrow."

"Casey, there are tons of hotels here. What makes you think it'll be this one?"

I handed him the piece of paper.

"Oh."

"See?"

He grabbed my shoulders and smiled. "It's no big deal. We'll just lay low, and then we'll sneak out for the concert." I sighed and nodded my head.

"Ok. Um…I'm going to go shopping now. Did you still want to come with?"

"Yeah. Go ahead of me. I'll meet you down in the lobby."

"Ok."

I left his room and took the elevator to the bottom floor. When the elevator doors opened I saw something I wish I didn't. There in the lobby were our senior classmates with the three teacher chaperones. Shit! And there was Max. I quickly ran around the corner where the end of the stairs were. What are they doing here? They aren't supposed to be here until tomorrow night. There coming down the stairs was Derek.

"Ready to g-"
"Shh!" I shouted in my whisper voice. I pulled him closer and put him up against the wall. I looked over my shoulder and saw them walking this way. The one time no decides to take the elevator! I can't believe I'm about to do this. "Look Derek…this is strictly business."

As soon as our classmates passed the corner, I leaned forward and kissed Derek. It was the only way that they couldn't see us. Or the only way that came to mind. It was all I could think of on short notice. Even when I knew they were all gone, I didn't want to stop kissing him. And I didn't. Until I heard someone say, "Ahem."

I broke apart and looked over my shoulder to see Mr. Venice. I gave an embarrassed smile and laugh. He too smiled and walked away.

Derek's POV

What made Casey kiss me again? I had no idea and I didn't really care. I've kissed tons of girls in my lifetime, but none have been as good as that one. When Mr. Venice was gone, Casey turned to me and smiled.

"Sorry. It's just that-"

"Don't be sorry." I said grinning from ear to ear. She smiled and looked down at her hands.

"Don't you want to know why?" she asked looking back up. I shrugged.

"What's a kiss between step-sibs?" I said jokingly. She laughed. "Can we go now?"

"Yeah."

I took her hand, and we were off to go shopping.

Author's Note: Sorry this chapter was kind of short, but I can't rush these things! …lol. So, did you guys like it?