"Y/n wait!"

"I'm not interested Stiles, I don't get involved in any supernatural shit." I sigh.

"But your Derek's girlfriend and Stiles' sister! You must know stuff." Scott says to me.

"I know who my twin brother and boyfriend is, Scott. Derek doesn't want me hurt so he keeps me out of it. Derek has lost too many people who were involved in the supernatural so he refuses to get me involved, kay?" I say irritated.

Scott and Stiles have been following me around school all day asking me shit about what's happening supernatural wise in Beacon Hills. I'm heading out of school now with the two following me as I walk briskly.

"Y/n!" Derek yells from leaning on his black Camero.

No one knows of me and Derek's relationship other than Scott and Stiles.

"Baby!" I yell back.

As soon as I reach Derek his hands are all over me in a passionate kissing embrace.

"Get a room sis!" Stiles yells irritable himself.

"Stop following me around all day then bro or Derek can come hang with us-"

"No!" They both say simultaneously.

"Oh my god Y/n you didn't tell us about this!" Lydia squeals excitedly.

"Don't encourage her Lydia." Stiles sighs.

"We wanted to keep a low profile but these two wouldn't leave me alone today about the supernatural so I did this to wind up my twinny Stiles." I say then I stick my tongue out at Stiles.

"You and Derek must come to my party on Friday!" Lydia says excitedly.

"Lydia throws the best parties in town." Allison says happily.

"Girls no." Stiles sulks.

"It's not really Derek's scene." Scott says.

"Please baby? I promised I'd go. Now people know about us please come with me?" I say with my eyelashes fluttering.

"You're too cute. Fine I'll go." Derek says.

"Barf." Stiles mutters.

Me, Allison and Lydia all look at each at once and squeal all at once for which all the boys put their hands over their ears.

The party comes fast as I hoped. Currently I'm sat on Lydia's plush sofas with me being sat on Derek's knee. We are sat with Lydia, Scott, Allison, Stiles, Isaac and some other girls called Krista, Jen and Olivia.

"Y/n, truth or dare?" Allison asks me smirking.

"Truth." I shrug.

"What is the story with you and Derek then? How did you get together?" Allison asks dying to know obviously.

Scott rolls his eyes and Stiles sits there grumbling as Lydia gives him a playful shove to make him shut up.

"As much as we'd love to hear this, my mum is here." Krista announces.

"Krista's our ride." Jen says smiling.

"Bye everyone. Thanks Lydia for the party." Olivia says leaving.

"Bye!"

"Come on then tell us, we wanna know." Allison begs.

"You know that time when Cora and Boyd hadn't seen a full moon for four months? Well I didn't know about the supernatural then as Stiles over here didn't tell me."

"I wanted to keep you safe." He smiles.

"And you did." I smile, "I was in the boiler room staying late to study. Miss Blake sent me to get more supplies that's how I ended up in the boiler room."

"That's the third heartbeat me and Scott heard. Scott intervened and realised it was Y/n but I insisted on going in because it was my pack, my beta and my sister. Plus," Derek sighs, "I know how it feels to lose a sister you're close to so I didn't want to put Stiles through that when I knew I could do something."

"Awwww this is so romantic and sexy." Lydia gushes.

"Doesn't stop there." Stiles mutters.

"It doesn't stop there." I start happily, ignoring my twin's mimicking, "I didn't see them attacking Derek but in the morning after all was done he was battered bruised and bloodied. Derek just held out my hand and pulled me into that rock solid chest." I say kissing Derek's cheek.

"She just sobbed. I didn't reveal the supernatural as I could smell the sheer terror and confusion on her face. I didn't reveal who I was but I felt bad the next day so I went to your school to check on her." Derek smiles at me.

"Stiles the night of the boiler room found me waiting at home for him where I questioned him and he told me everything other than Derek. I was vague about them details too as I knew Stiles was trying to keep something from me. I was angry so when Derek checked on me the next day I was a bitch."

"I understood that and I expected her reaction. I mean I did accidentally sneaked up on her in an empty classroom." Derek chuckles, "Your reaction was adorable."

"What he means is I smacked him over the head with my chemistry textbook. I apologised and he said I could make it up to him by having dinner with him tomorrow."

"Stiles meanwhile then explained the story that he calls me Miguel when he's lying about my identity. So when Stiles saw who I was when I picked up Y/n for a date he said that's the Miguel from the story." Derek laughs at the memory.