The alpha Wolf 5sos werewolf fan fic

This is a 5sos fan fic. "
"What do you want with me"I ask frightened.
"We want you.'" He says. "You are the key to our survival you are our beta. You will save us all" he says Them his eyes turn yellow, searing pain rips through my body and I shudder. What's happening to me? "Oh sweetheart this is only the beginning." He says reading my mind. I drop to my knees and my hands are all bloody. My eyesight sharpens and I smell dog or more like wolf.
"What did you do to me" I ask my voice shaking. My vision blurry.
He smirks like I said something funny. " What was necessary."