So after the incident at the police station where Stiles and I got lectured by his dad, the sheriff, Stiles decided that he should give me a ride back home. So that's where I am right now, in the old blue jeep. Derek and Isaac sprinted off before the cops barged in, confused seeing the hunter unconscious on the ground. Of course it didn't look good for Stiles and I consider we were standing right next to him. So we had to explain to Stiles' dad that we had nothing to with the unconscious hunter and the fire alarm. Well, we had something to do with the fire alarm but he didn't need to know that.

"Stiles, you don't have to drive me home. I can run," Stiles looked at me with raised eyebrows. "I won't kill anyone , I can control my wolf side even on a full moon." Mom taught us to control it so we wouldn't kill everyone that crosses our path. I just have a little problem contain it when I'm really pissed at someone or something, but I like to blame it on that person or thing.

"I know you won't kill someone, but a pretty girl should never walk alone on the streets when it's dark." Aww that's so sweet. Wait, did he just called me pretty?! No, I probably just heard it wrong.

"Thanks Stiles," I gave him a slight smile which he returns. Before I know it we arrive at my house. "I'll see you tomorrow at school then," I say as I step out of his car.

"See you tomorrow," and with that he drives off. I turn around and let out a big sigh, knowing that Derek hasn't forgotten about the whole Allison thing.

As I walk inside the house I hear chains rattling in the basement knowing Isaac must've lost it again. "Derek you down here?" I asked walking down the stairs seeing that it's indeed Isaac who's making the noise.

"Yeah I'm here," I walked further in the basement avoiding Isaac and walk towards Derek who's sitting on a chair with a frown on his face .

"Look, I'm not gonna lecture you about the whole Allison thing. But please be careful, you know what her family does and what she will do," I smile at Derek knowing what he thinks. He lost his entire family thanks to the Argents, he just doesn't want to lose his little sister who he just got back.

"Before I forget, Isaac lives with us for now on."

The next morning I was standing next to a bouncing Stiles in the gym watching Scott and Allison climb the rock wall. I love gym, it's something I'm really good at and I like coach. Not in a weird way, he just likes to make fun of people and I think that's funny.

"Stiles, stop the bouncing. It's very nerve-wracking," I turned to Stiles as he abruptly stops bouncing.

"Sorry I just really wanna do it, and what are Allison and Scott taking so long. You would expect more from a Hunter and a werewolf," I rolled my eyes at him and turn back to the wall where I see Allison kick Scotts foot and with a loud smack he falls on the ground.

Everyone erupts in laughter including coach. "McCall, I don't know why, but your pain gives me a special kind of joy," and this ladies and gentlemen is why I like coach.

"Right? All right, next two. Stilinski, Erica, let's go. The wall." Stiles practically runs towards the wall while Erica looks like she's going to faint any minute. So this is Erica? Derek said he wanted to add an other beta to his pack and that here name is Erica. I study her up and down and sigh. Smart Derek, turning teens into werewolves who have more problems than the people in Eichen house.

Not even half- way up the wall Erica starts to shake which remind me of what Isaac said to Derek the other night. She's epileptic. "Erica. Dizzy? Is it vertigo?" Coach asked not knowing what to do with her.

"Vertigo's a dysfunction of the vestibular system of the inner ear. She's just freaking out," Lydia said with a sassy tone. "I'm fine." I heard Erica say

This is not going to end well if she stays up there. "Coach, maybe it's not safe. You know she's epileptic," I tell him.

"Why doesn't anybody tell me this stuff? I have to get - Erica, y - you're fine. Just - Just kick off from the wall. Th - There's a mat to catch you. Come on." I watched as she comes down the wall slowly till she's back on the ground.

"See, you're fine. You're on the ground. You're all right. Let's go. Shake it off. You're fine," everyone erupted in laughter once again and a completely embarrassed Erika walked off to the girls changing room.

As I put on my last piece of clothing I feel my hand start to shake. I run back to the gym where I see Erica lying in Scotts arms.

"Lydia! Lydia! What's wrong, why are you crying." When I walked in the hallway I saw a very disturbed Lydia staring at the trophy cabinet.

She looks at me and sigh. "it's nothing," she wipes off the tears on her cheek and puts on a smile, a very unconvincing one. "let's go grab some lunch,"

As soon as we walk into the cafeteria I spot Scott and Stiles and walk towards them. As we reach their table everybody turns around. With high heels, a black mini skirt, white tank top and MY leather jacket Erika walks in. She looks at our table with a smirk and takes an apple from a random kid and takes a big bite out of it. Her eyes land on me and winks before she walks out.

"what... the holy hell... Is that," Lydia slamed her hands on the table what makes Stiles look back at us.

"Erica," a low growl escapes my lips as I feel my eyes flash gold. No one! And I mean no one ! takes my clothes without asking!

Stiles takes my hand and I immediately calm down and feel my eyes turn back to its normal brown color. I give him a slight smile, my anger not completely gone. Without saying anything to Lydia the three of us run towards the door as we push them open just in time to see a smirking Erica step into Derek's car and drive off.

"Did you know?!" I frowned my eyebrows at Scott. "Did you know Derek was going to turn Erika?!" Stiles takes a step so he's standing next to me looking at me with curious eyes.

"yes Scott, I did know he was going to turn someone with the name Erika. No, I did not know who Erika was, Isaac proposed it to Derek," I said as I cross my arm getting a little annoyed that Scott is getting mad at me.

"You know where Isaac is?" Stiles asked surprised. I let my arms fall back down and my gaze softens as I look in his eyes. "After his father was murdered and he broke out of jail, Derek decided that he could live with us."

I watch as Scott storms off back into the school leaving Stiles and I behind. "Sorry about him, he doesn't mean it," Stiles scratched the back of his head now knowing if it's a good idea to be alone with me, because hey, I'm still Derek Hale's sister.

"it's okay Stiles, you don't have to apologize. You can go back inside, I have to go." And without waiting for Stiles' answer I run towards my car, or Derek's car but he gave it to me so it's mine, and drive back home the anger coming back

I storm inside where Derek, Isaac and... Erika are sitting on the couch. As soon as my gaze meets Erika everything else disappears. My eyes glow yellow and my claws show the closer I get to her. But before I can even lay one finger on that clothing stealing b*tch Derek throws me against the wall. But that doesn't hold me back trying and with full rage I stand back up to reach Erika again, seeing Isaac back up a little as I walk past him.

Derek grabs my arms and digs his claws into it as I try to hit him not caring what the damage will be. "Alicia stop it now!" Derek growled loudly and with his eyes glowing a dark, deep shade of red.

I stop trying to hit Derek but my eyes never leave Erika's who now has a satisfied smirk on her face, knowing Derek has chosen her over his own sister. Can't believe I felt sorry for her when the whole class laughed at her.

Derek let's go of my arm the wounds that he created now healing. "Alicia, Erika is my new beta so you better accept that. She belongs with us now."

I turn my gaze from Erika to Derek and give him a cheeky smile before walking towards the blond who turned her satisfied look into a scared one. I hear her heartbeat increasing as I lean closer to her ear "that's right Erica, be afraid, be very afraid. Steal my clothes one more time and my face is the last thing you see on this planet," I whispered as I pull the jacket off of her walking to couch where I sit down.

"that was eventful," Isaac says with a sarcastic tone as I still hear Erika's heart beating rapidly.

Sorry! I know nothing special happened this chapter but hey there was a small Alicia/Stiles moment. I promise it will get better!

So what do you think, will Derek chose his pack members over his sister ?

I hope it updated properly now

have a nice weekend xxxx