A/N: Hello, everyone! I've had this story waiting for a while, and since I can't post on my other fic (the documents have spontaneously decided to lock themselves) I thought I would put up a chapter in this one. Over time, I may raise the rating of this fic, but right now I'll just post warnings when there are M rated chapters. WARNING: This chapter has a hard M rating (sex, language). Read at your discretion.

P.S. Please comment if you'd like me to keep going!

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"No, mom! I can't go. I'm not going."

"Meredith, don't be such a child. This is the one night I have off, and Mrs. Shepherd is throwing me a party –"

"To celebrate my Harper Avery award. It's the most prestigious award a surgeon can win," they finished in unison. Meredith sighed. "Congrats, mom. I know. I just don't think I have to be there. You don't like parties anyway."

"Meredith, you're going."

"But mom…"

"We're leaving in five minutes."

Meredith stormed upstairs, realizing that it wasn't worth arguing with her mother anymore. She threw on a pair of grey jeans and a tank top that was probably clean the day before. As she was lacing up her Converses, a wicked idea crossed her mind. Running to the bathroom, she tore open her make up bag and searched wildly for the hair dye she had bought on a whim the previous weekend. Afraid of her mother's response, she hadn't been brave enough to use it. Until now. She ripped the top off of the aluminum package and began to comb the dye through her hair.

"Meredith? We're leaving!" Ellis shouted up the stairs.

"I'm coming!" Meredith yelled back. Dipping her head in the sink, she washed the sticky substance out of her hair. She yanked the hair dryer out of the cabinet and flipped her hair around madly, trying to dry it as quickly as possible. Satisfied with the color, she quickly threw on eyeliner, mascara, and lipgloss. She watched the shock grow on her mother's face as she descended the stairs.

"Meredith, your hair is…pink."

"Really? I hadn't noticed."

"Wash it out, Meredith!" Ellis gritted her teeth and pressed her lips together tightly.

"I don't think it comes out," Meredith said innocently.

"Can't you go one day without embarrassing me? Now we're going to be late and you're going to show up with pink hair." Meredith smirked to herself as Ellis shoved her out the door.

x.x.x.x.x

"Ellis! I'm so glad you could come. And Meredith, you look, uh, lovely."

Meredith plastered a smile to her face as she looked at Mrs. Shepherd. "Thank you, Mrs. Shepherd."

"Katherine's out tonight. But Derek's upstairs if you want to see him."

"Oh. Uh, thanks." Like I want to see him. Meredith had been friends with Katherine as long as she could remember; their parents worked together at Seattle Grace. But Derek – he was the typical best friend's older brother. He bumped into her in the hallways at school, hid her notebooks, teased her, and scared off her boyfriends. And the worst part was that she was always drawn back to him, no matter how much she hated him.

Reluctantly, Meredith pushed through crowds of important, socially awkward surgeons as trudged to the stairs and up to the den. She sighed when she saw Derek lying across the couch, taking up all of the space.

"You're taking up the whole couch," she said.

"Yeah."

"Do you think you could, I don't know, move? Just a little?"

"You could sit on my lap."

"I'd rather sit on the floor." Meredith took a seat on the floor at the end of the couch.

"There's plenty of room. I wouldn't mind."

"I'm sure you wouldn't. But I don't sit on the laps of dirty old men." As exhausted as she was, she tried desperately to keep up with Derek's level of conversation.

"I'm not a dirty old man."

"You try to get into my pants every chance you get; you're dirty. You're at least two years older than me; you're old. And again, you try to get into my pants every chance you get; you're a man."

"I definitely am a man." Derek smirked.

"Shut up." Meredith smacked Derek's leg.

"Ooh, feisty. I like it."

"I said shut up."

"You'll regret it. You know you love me."

"Yeah, just as much as I love being stabbed by a rusty fork."

"That was pathetic."

"Shut up."

They sat in silence for a while, watching the cartoon Derek had on the TV.

"Your hair is penicillin pink," he finally said.

"You still watch cartoons," Meredith snapped back. "And it doesn't look like penicillin!" She was in no mood to deal with Derek.

"That's where I disagree. It is like penicillin."

"Well, your hair is…" Meredith struggled for the right word. "Greasy!"

"You have too much eyeliner."

"Your girlfriends are all hideous."

"You can't keep a boyfriend for more than a month."

"You've chased away every fucking boyfriend I've ever had!"

"They weren't worth your time."

"Or you just like tormenting me!"

"You're my little sister's best friend. I didn't think they were worth your time."

"I'm your little sister's best friend. That means you have to 'save' me from my boyfriends? I happened to like some of them!"

"I didn't 'save' you. I was just…just…"

"Why bother? You don't care about me! Nobody cares about me."

"Why have a boyfriend, then? You could get around much faster if you didn't have one of them tying you down!"

"Get around? You think I get around?" Meredith asked furiously.

"You have had a lot of boyfriends!" Derek spat.

"And that makes you think I'm some sort of whore?"

"I didn't say that!"

"You thought it! Why would you say that if you didn't think it?"

"Maybe I think you need to stop fucking everything that moves!"

"Since when do you care what I do? So what if I fuck everything that moves! I also drink too much tequila! And I have mother issues! Do you want to criticize anything else I do? It's none of your fucking business! Fuck you! I hate you!"

"Maybe I hate you too!"

Meredith sat in stunned silence. Without warning, she crashed her lips into Derek's. He reacted immediately, threading his fingers through her hair and parting her lips with his tongue. She moaned and pulled him closer, raking her nails over his back.

"My room," Derek breathed. He pinned Meredith to the door as he closed it, locking his lips with hers again. She ripped off his shirt, digging her nails into his muscular back as she wrapped her legs around him. He slipped his tongue into her mouth again, their tongues dueling. He brought her to his bed and laid her down, never letting his mouth leave hers.

"Dammit! What's taking you so long?" Meredith growled as Derek undid the buttons on her jeans and slid them off.

"Nice panties," he snickered, "but I didn't know that they made thongs with…" Meredith looked down in horror and realized she was wearing her Snoopy thong.

"Shut up!" she hissed. Before Derek could get to her shirt, Meredith had already pulled it off. With agile hands, he unfastened her bra and threw it across the room.

Derek smirked as he stroked her rosy nipples with his thumbs. She squirmed as he took one into his mouth and flicked it with his tongue, teasing it mercilessly. He turned to give the other one the same attention as Meredith arched her back to meet his mouth. Even if they hated each other, every movement or noise she made fueled him on more and more. He hooked his thumbs on her panties and slid them off her long, soft legs. He heard her draw in a deep breath as he reached between her legs and stroked her clit with his thumb.

"Fuck…Derek…now," Meredith moaned into Derek's ear. She quickly undid the zipper on his jeans, yanking them off. He gasped as she reached her hands under the elastic of his boxers, slipping them off and firmly gripping the base of his hard cock.

"Woah…you're big," she whispered, momentarily forgetting the rage that was fueling her. "Condom?" she hissed as the smug look on Derek's face instantly brought her anger back.

"In the drawer." Derek groaned as he watched Meredith's delicate hands slide the condom on, smoothing it out at the base. Slowly, he thrust himself into her. "God…Meredith…you're so tight…"

Meredith let out a low moan as Derek began to pound into her. "Fuck…Derek…" she moaned. Worried about getting caught, Derek silenced her by thrusting his tongue into her mouth to match the rhythm of his cock. He watched her breasts bounce as her body echoed his movements, matching each of his thrusts with one of her own. "I…hate…you…" Meredith whispered into his ear.

"It doesn't sound like it," Derek laughed. He groaned as he began to feel Meredith's wet walls tighten around him.

"Fuck you!" Meredith whispered harshly. "Ah…ahhh…fuck!"

"Meredith! Derek!" Derek's mother shouted up the stairs.

"Crap!" Meredith hissed as she heard footsteps on the stairs. Derek groaned as Meredith pulled away from him and scrambled to collect her panties and jeans from the floor.

"What the fuck, Meredith?" Derek asked. He hadn't heard the footsteps on the stairs.

"Your mom," Meredith hissed, "is coming up the stairs right now!"

"Crap!" Derek repeated.

They both hurried around Derek's room, pulling clothing off of every horizontal surface.

"Dinner!" Derek's mother shouted. She was only a few feet away from Derek's door. Derek and Meredith frantically dressed and arranged their clothing. As she opened the door, she found Derek and Meredith sitting calmly on Derek's bed.

"Dinner time," she said softly. "Derek, please behave."

Meredith and Derek exchanged relieved glances before leaving his room and heading downstairs. Before they got to the dining room, Derek noticed Meredith's hair was completely wild. "Hair," he whispered to her.

"Shit." Meredith quickly smoothed her hands over her hair several times. "Uh, thanks. I guess I should tell you that your…problem…is pretty visible."

Derek glanced down at the still obvious bulge in his pants. "Thanks." He hurried to his seat before it could become apparent to the other guests. Meredith took the seat next to him, trying to get as far away from her mother as possible.

During dinner, Meredith felt Derek's eyes staring into her every second. As much as she hated to admit it, his gaze was intensely hot. Since they were unable to finish their hate sex, she was extremely frustrated. Derek watched her try to squirm discreetly, snickering to himself. Meredith clasped her legs together, lightly rotating her hips. Reaching his hand under the table, he slowly let it glide up her leg. Meredith glared at him and slapped his hand. Derek didn't let her ineffectual slap deter him; he moved his hand to the seam of her jeans that slid between her legs. He pressed his fingers lightly at first, gauging her response. She gasped quietly and moved her glare to her plate, hoping she wouldn't give them away. The blood drained from her face as she saw Mrs. Shepherd look up briefly, but she quickly turned back to her dinner. Meredith let out a breath of relief, realizing how close she was to being completely humiliated. She glanced back at Derek, who was grinning madly. He pressed his fingers a little harder onto the seam of her jeans, gently rubbing circles around her swollen clit. She let out a stifled moan and arched her hips slightly to meet his fingers.

"Everything okay, Meredith?" Derek's mother asked.

"Oh, yes Mrs. Shepherd. It's just…the food is really good. Thanks for having us over."

"Oh, thank you Meredith. It's my pleasure." No, it's mine, Meredith thought smugly.

She darted her eyes over to Derek, urging him to continue. His mother had interrupted the hate sex. The really hot hate sex. And now she was about to explode with desire. Derek chuckled as he rubbed his thumb up and down the inside of her legs. With one final flick of his fingers, he sent Meredith into ecstasy. She closed her eyes and let out a low moan, relaxing against the chair. All eyes at the table turned to look at her. Shit, she thought.

"I'm really full," she said as coolly as possible.

Many of the people at the table seemed to accept her answer; they all turned back to their respective conversations. Meredith closed her eyes and sighed – she was safe, but only barely. This definitely wasn't over.