AN: one shot: just a fun idea that randomly came to me in the shower. I always think that Blair can be such a badass when she wants to be. Set during season 4. In this Blair is dating Jimmy (OC) quite casually- and Chuck is pinning for Blair. Set at a party.

Serena POV

The doors open and out steps out Blair- fashionably late and looks gorgeous as always. She is hand in hand with her new boy toy Jimmy.

"I don't like him, something seems off about him sis" Chuck says to me while his eyes following Blairs every move.

"Chuck, you're just jealous" I replies "and you say that about every guy she is with" I am exasperated; I am so over Chucks pining. "You obviously want her back- just go and apologise to her, and live happily ever after!" Chuck replies with a glare.

"She needs me, sis" Chuck says. "Chuck, why would she need you?" I says, humouring him, it was obvious that Chuck needed Blair not the other way around. His eyes were still firmly on Blair while he says "she needs me to take care of her…" I roll my eyes "ugh…whatever" Chuck just needs t grow up.

We both continue to look at Blair and Jimmy, Jimmy seems angry at Blair, I wonder what happened? I was about to comment on his anger when Jimmy drags Blair quite aggressively into a room that was on the edges of the party. Watching this chuck grasp my arm and takes off after her, following the couple into the seemingly empty room.

"Come on" Chuck says to me while sliding into the room after the couple. "Chuck, what the heck are you doing?" I try to ask him, but chucks hand comes and covers my mouth, effectively cutting me off. "Shush- I want to hear what they are talking about- quick hide behind here" he says pointing to a long drape.

I was about to protest but we heard the voices of Blair and Jimmy, and they were defiantly arguing. Jimmy might as well have had smoke coming out of his ears. We both hide and listen close to the argument, even if I knew it was wrong.

"I don't see what the big deal is" Blair says to Jimmy, Jimmy rages and shouts at Blair's face "the deal is that you went out without my permission, you bitch" he raises his hand and strikes Blair across the face. Oh my effin god! The world slowed down as I watched Jimmy's hand fly down on Blair's face. I am in shock, and so is Chuck. Chuck snaps out of it and clenches his fist in anger, he moves forward to intercept but Blairs hand flies up and grabs his wrist before he can strike her.

"Did you just try to hit me?" Blair asks, looking angrier than I have ever seen her. She doesn't even wait for an answer before she draws back her fist and punches Jimmy square in the face. Jimmy falls back and tries to swing one back at Blair, but she dodges it and grabs his fist and twists his arm around his back. Jimmy cries out in pain Blair then pushes him to the floor and kicks him in the groin.

"No one messes with me, oh and if you didn't realise this before we are over, never come near me again or else next time, I will break your arm instead of just twisting it" Blair then flips her hair and sashays out of the room.

Jimmy is still lying down on the floor in pain. Chuck and I then left the room still very much in shock about what Blair just did. "See she doesn't need you, she can take care of herself. And if you want her back like you so obviously do, you will tell her like a man" I say to Chuck before I walk off to find Blair. I wonder where she leant those moves.

THE END

AN: spot the reference to limoversary.