((A/N Not only is this my first Powerpuff fic, but it's also my first fic EVER, so excuse me if it's a little crappy. The girls are all 16 in this fic, and if the story lives long enough, there will be pairings. So…yeah…there ya go.))

Sweat was flung off Buttercup's arms she pummeled the super durable punching bag the Professor had designed for her down in the lab. Today had not been the best day. First, Bubbles had woken her up at 4:30 to kill a spider, why she couldn't do it herself Buttercup would never know. Second, she couldn't get back to sleep, causing her to fall asleep in math class later that day, which, do to previous warnings from that teacher, landed her 360 minuets of detention. Third, she accidentally punched a hole in the classroom wall, from being mad at said detention, which gave her a Saturday school. Forth a giant monster attack right after school, and due to fatigue and being really pissed off, she couldn't fight for crap, Bubbles wound up saving the day and taking the glory. And finally when Buttercup got home the Professor lectured her for two hours about how she had no self-control and that if she wasn't careful she could "seriously injure or kill someone."

Well, to hell with him. Buttercup had all the self-control she needed, and there was only one person right now she wanted to "seriously injure" was her annoying, brat of a sister, Bubbles. If she hadn't got her up at four in the fucking morning, things would have been a hell of a lot different. And now, for some odd reason, she was throwing a party! The Professor had to leave on business somewhere around 5pm, and the minuet he shut the door, Bubbles was on the phone with Robyn. Ten minuets later, the place was packed and the music was blaring. Buttercup had fled to the lower levels of the lab almost as soon as the people started showing up.

Normally she would have been livin' it up, but the fact that it was Bubbles', rule breaking party only pissed her off even more. Of course Blossom was probably up there throwing a fit, but she wouldn't dare use her powers with so many people around, some one could get hurt. Bubbles, though was most likely having a blast. Buttercup could almost see it. Bubbles dancing with some random dude she would never talk to again, playing spin the bottle with those preppy, asshole friends of hers, or maybe she was showing off her powers, like lifting a tower of football players. Buttercup punched the dense, several ton bag so hard it slammed into the ceiling 12 feet above before swinging back down.

"Buttercup?" She didn't sound as happy, as someone throwing a wild should, but Buttercup knew it was her.

"Go away, you little brat, I'm not in the mood to deal with your shit right now." Buttercup growled.

"But Buttercup…I really need your help-" Before Bubbles could finish Buttercup snapped, and began screaming,

"Can't you do anything yourself, you ditzy little bitch!?" Buttercup's vision began to go red. "That's all you ever do is whine! 'Buttercup squish this bug,'" she mocked as Bubbles's eyes began to tear up. ""'Blossom, I can't figure this out,' 'Professor, their pickin' on me,' Well I'm SICK of it!" Bubbles yelped as Buttercup hit her so hard across the face so hard they both almost fell over.

"Buttercup!" Bubbles gasped before Buttercup began to pummel her. Buttercup could hardly see past the red haze of anger that clouded her vision. She couldn't hear her sister's pleas for mercy. She barley felt her sister's flesh and bone under her fists. Somewhere deep in the back of her mind she knew she'd get in trouble, but she didn't care, all she knew now was the release of hatred and how good it felt, besides, how bad could she hurt her?

Meanwhile…

Blossom was becoming very impatient. She had been screaming at these people to leave for almost 2 hours, and no one seemed to be listening to her. She had sent Bubbles down to the lab to get Buttercup to come and help them 10 minuets ago, and neither of them came back up. What could they possibly be doing? She planned to find out. She slowly made her way to the back the door to the basement, and ducked inside, hoping no one had seen her. She made her way down to the lab and looked around. Buttercup would probably be in the gym… 12 levels below her. With a sigh of frustration she headed over to the elevator and hit the button. After a full minuet of waiting for it, she flew off for the stairs; she'd probably make it to the other girls before the elevator reached her floor anyway.

Again and again she hit the blue-eyed girl. Bubbles put her arms up in a feeble attempt to defend herself, but a crunch could be heard as Buttercup's fist drove into her right forearm, pulled back and slammed a dozen other blows all in the span of a second.

Buttercup pulled back and kicked Bubbles in the stomach so hard it lifted her off the ground far enough far enough for Buttercup to grab her ankle and slam her into the floor several times, hard enough to dent the 30 feet of reinforced titanium. Bubbles couldn't do much at this point. It was hard to even think through the pain, and it's rather difficult to move while one is being slammed around by the ankle.

Buttercup could not control herself, still mostly numbed by the slowly dying rage inside her. She Finally threw Bubbles high into the air and as she fell back down, delivered a powerful side kick to her ribs, sending her flying into through the wall of solid steel, all the way to the other end of the next room.

Buttercup stood there, breathing heavily for a moment. She rubbed her eyes, the last of the red haze dying away, but pulled them back.

"Wha?" Her knuckles felt wet. She looked her hands over, her mind not registering the red stained across them right away. Had she split her knuckles? She glanced around the gym. The floor was dented in a few places, and little specks dotted the area around it. "What the fu…" her voice trailed off. She looked back at the door into the next room and did a double take. There was a huge chunk taken out of it! And at the far end of the next room, lying on the floor facing away from her, was a mass of red and blue. Buttercup walked into the next room, her legs shook and she felt like she had just gone ten rounds with Butch. She stopped ten feet away from the figure. A sickening feeling tied her stomach in knots. She gulped loudly and whispered, "Bubbles?" Suddenly the door at the top of the stairs burst open and Buttercup's head whipped around to see Blossom at the top of the stairway.

"There you are, wher-" Blossom froze mid-sentence catching sight of the heap on the floor. She raised a hand to her mouth in a silent gasp. Her eyes flicked from Bubbles to Buttercup. "What did you do?!" She yelled as she bolted towards Bubbles. She turned Bubbles on her back, and Bubbles gave a small painful groan in response. "Oh, God," Blossom moaned. She looked back at Buttercup. "What did you do?!" She yelled again.

"I… She… I don't know…" Buttercup stammered, her mind was reeling and she didn't feel well at all.

Blossom gently laid a hand on Bubbles forehead, afraid to really touch or move her. "Bubbles? Please say something, Bubbles, please say something."

Bubbles rolled her head to the side looking at Buttercup, her eyes half open, and whispered. "Buttercup," She coughed, causing her sisters to jump as blood flew from her mouth. "I'm sorry…" Her eyes glazed over and Buttercup went completely numb.

"Bubbles?" Blossom began to panic slightly. "Bubbles stay with me sweetie." She put her ear next to Bubbles' mouth, and heard nothing. She wasn't breathing. "Oh, God, no." Blossom started c.p.r., and Buttercup took a few steps back.

"No… I didn't mean…" She ran a hand through her hair as Blossom began depressions on Bubbles' chest. Buttercup screamed and flew off as fast as she could up the stairs, breaking through the door to the upstairs, straight through the roof, and off into the night.

Back down in the lab, Blossom continued c.p.r., fruitlessly for about five minuets before she realized that Bubbles was never going to respond. Tears had been flowing down her cheeks almost since she saw Bubbles. Slowly she reached for her face, and closed Bubbles eyes, knowing that they would never open again. Blossom hugged her sister's body tightly, sobbing, not wanting her to go. "Bubbles," she choked, "Please…please, don't go…please don't go."

((Okay, this is the first chapter and already, I'm like, 'THIS SUCKS, but I'll get better I promise))