Who is she.?| flash sentry x fem! Reader book 1~

First day~

Y/ns pov:

As I'm sleeping my alarm goes off, I put my head up and slap it to make it stop, it worked and I put my head back down slowly falling asleep when I hear my room door slam open

"WAKE UP BITCH ITS YOUR FIRST DAY OF SCHOOL!" My sister sunset says scaring me

"Don't do that dumbass! You scared me!" I yell at her sitting up on my bed

"Oh don't be dramatic. Are you not excited to see pinkie pie, rainbow dash, apple jack, twilight, flutter shy and rarity!" She says as I roll my eyes

"Damn you look rough." She says putting her hands on her hips

"Shut the hell up." I say immediately as she sighs walks up to me and sits next to me on the bed

"Sis, I know somethings in ur mind, what's wrong?" She says as I look at her and slowly look down on my lap

"Are you sure no one will know I hold the same powers as dad except for our friends?" I say quietly as her eyes soften

"Y/n.." she says softly as my eyes full up with tears

"I'm sorry sunset.. I just feel like it's my fault. I had the powers, I could have saved him. But I stayed there." I say in a shaky voice

"Y/n." She says and puts her hand on my shoulder making me look at her

"Don't blame yourself for that, it's not your fault, you where a kid, you could not even control that strong power, and I'm sure dad is proud you didn't try to save him, because he loves you y/n he loves us, if the people knew you had the power too and killed you, and dad was the one who was alive, he would not forgive himself." She says as I look down

"But-"

"Y/n. It's not your fault." She cuts me off

"Sunset.. why do you forgive me so fastly.?" I ask looking up at her as her eyes widen then turn soft

"Because where sisters. Y/n you have a kind soul, I know you didn't mean to. You may not forgive yourself but I do. And I love you." She says as she hugs me and I hug back

"Thanks sunset. You're the best sister I could ask for." I say smiling and she smiles back

"Same. And just remember I'll always be by your side." She says as I smile

"But I'm never using my powers." I say as her smile fades fast

"Y/n you haven't used that power for 10 whole years! When will you ever use it?" She says

"I don't know sunset but like I said I'm not using it, I don't want to hurt anyone! I almost killed you!" I say as she sighs

"Get dressed where leaving in 15 minutes." She says and with that she walks out closing the door

"God. Why does it have to be me.? Why do I hurt the people I love..." I whisper then get up to get dressed

5 minutes later

As I'm done getting dressed I open my room door and walk down the stairs to see sunset with her girlfriend twilight