Disclaimer: Naruto ain't mine, son.
Something we learned from cave-man time: Survival of the fittest.
Sakura saw red. She saw Sasuke and his new 'team'. She walked right up to Sasuke and punched him in the face for betraying Konoha. Karin screamed "Don't touch my Sasuke!!". That made Sakura even more furious. She turned to Karin and round house kicked her in the face. Sasuke and everyone else was too shocked to do anything, plus they all hated Karin anyways.
Karin got mad. Sakura got madder. Karin tried to round house kick Sakura in the face. Sakura caught her foot then kicked her in the Vagina. "MOTHER FUCKER!" Karin screamed. Sakura smirked. She was getting a sick thrill from beating the shit out of this bitch. Sakura then sent a chakra-infused punch to her nose and broke it. Karin was getting pwnd. Karin tried to punch Sakura in the boob but Sakura was too fast and punched her glasses. The glasses broke and the glass went into her eyes, cutting them and making them bleed. Karin screamed like a banshee. She could still see out of her right eye. She began to punch randomly, only actually hitting Sakura once in the shoulder. But the pain only made Sakura get more adrenaline so it made her stronger and faster. Sakura spun Karin around and slammed her head against the pavement, smashing her face in. She then dragged Karin over to the curb by her hair. "Bite the curb, bitch. Bite the fuckin' curb." and Karin bit the curb. Sakura raised her foot and slammed it down onto the back of Karins head. Karin screamed more. Sakura then slammed her hand into the ground to make the ground open up. She did some more hand signs so spikes came jutting out from each side of the canyon. Sakura threw Karin down there, shut the earth, opened it again, and then closed it. Making sure Karin was chopped into little bits, never to return again.
SAKURA KICKED HER ASS. BAD. SAKURA PWNS.
If I get some reviews you reward is a lemon.
deal?