Hopefully this can hold you guys over until Grey's tonight. Enjoy :)

Derek Shepherd was an idiot.

Meredith had known this for about three months now, since the first time he'd tried to hit on her by telling her that she should let him hang the curtains in her room. But now, now she knew the full extent of what an idiot he was. As she stormed up the stairs to her room, her stupid boyfriend running after her, she was never more sure of what a complete idiot he was.

"Mer, just stop and listen to me," he groaned as he followed her down the hall.

"I don't need to listen to you," she snapped. "I already listened to you enough. I listened to you tell our professor that he needs to grade my papers easier because I have a sick mother."

"I didn't say that," Derek replied. "But if your schoolwork is being effected because of all of this, your professors need to know about it. And I know you well enough to know that you're sure as hell not going to talk to them about it."

"Who the hell do you think you are?" Meredith asked. "You have no right to talk to my professors about my schoolwork! I'm handling this in my own way, and if I need your help, I'll ask for it."

"No, actually, I don't think you will," Derek argued. "You're too damn stubborn for your own good."

"That's not actually the problem here," Meredith snapped. "The problem is you and your egotistical, caveman, protect my girlfriend from everything because she's too weak to do anything for herself attitude!"

"I don't think like that and you know it," Derek shouted. "Just because you don't like it when people try to look out for you doesn't mean that you can bite my head off every time I try to protect you from yourself."

"I don't need protecting!" Meredith yelled back. "You think I'm some fragile weak thing that can't do anything for myself! Let me tell you something, Derek Shepherd. I basically raised myself. I've been by myself for my entire life, and I turned out pretty well despite that. And if you think you can keep doing everything for me, maybe we should just end this."

"What?" Derek whispered, feeling the breath leave his chest. "Mer…no."

Meredith sighed as she collapsed onto the bed. "I don't know what you want, Derek," she said. "I'm not the kind of girl you need to take care of and do everything for. So if you want that kind of girl…maybe we should end this."

"You don't mean that," Derek shook his head, rushing to kneel in front of her. "Mer, please, tell me you don't mean that."

"I don't want to break up with you, Derek, I don't," Meredith whispered, tears building in her eyes. "But if you want someone you can boss around…that's not me."

Derek inhaled deeply before he moved to sit beside her, pulling her into his arms. "I don't want someone to boss around," he whispered. "I want you. And everyone knows that you're the real boss."

"You say that," Meredith replied, pulling away. "And then you do things like today, telling people to watch out for me and threatening guys that even look at me. I can't deal with that, Derek, it drives me crazy."

"Okay," Derek nodded. "I'm sorry, Mer, I really am. And when I do things like that…yell at me, tell me I'm an idiot. I can handle all those things. But I can't handle you saying that you're going to end this."

"I told you I didn't want to," Meredith sighed. "But I just can't deal with you talking to everyone in my life about me. I control what I want my professors to know. I can handle school and my mom, and if I couldn't I'd talk to them myself. You have no right to do that."

"You're right," Derek whispered, leaning forward to press his forehead against hers. "You're so right and I'm sorry. But you can't tell me that you're going to break up with me just because you're mad at me."

"What else can I do?" she asked. "Because when you make me mad, all I can think is that you want to break up with me."

"No," Derek shook his head. "I don't want to break up with you. We'll fight. Just like any other couple fights. But fights do not mean that we're going to break up." Meredith was silent and he tilted his head up to meet her eyes. "What are you thinking, Mer?" he asked gently.

"I guess I've just never had fights before," she whispered. "Everyone always leaves. And it's hard for me to believe that you're not going to leave when we get mad at each other."

Derek nodded softly. "Okay," he said. "Well, I can promise you that I will never leave. Okay? We're going to fight, we're going to yell, and knowing you I'll probably have a lot of things thrown at my head. But we're still going to be us when it comes down to it."

Meredith looked up at him through hopeful, tear filled eyes. "Okay," she whispered.

Derek leaned forward and pressed his lips against hers for a moment before he pulled back slightly and whispered, "Are we okay now?"

"Mmmm," Meredith murmured, her eyes closed as she wrapped her arms tightly around his neck and squeezed him.

"I love you," he whispered into her neck.

"I love you too."

"And now," Derek continued, pulling back with a twinkle in his eye. "Is the best part of fighting."

Meredith stared at him for a moment before a sparkle came into her own eyes and she asked, "Make up sex?"

"Make up sex," Derek confirmed, leaning in to kiss her hard. "You sure you're okay?"

"I'm perfect," she purred, reaching up to tug gently on his curls. "About to get a little better."

Derek smiled as he gently eased her onto her back, letting his hands play over her curves. "I love you," he whispered against her neck as he tugged at the bottom of her shirt. "I love you so much."

"Hmmm," Meredith sighed as she leaned back into the pillows. Derek ran his fingers over the soft skin of her stomach before gently lifting the shirt over her head, immediately reaching to unclasp her bra as well. "Der…" she moaned softly, holding his head in place as he nipped at the skin of her breast. Her hands were traveling down to his pants when the door suddenly burst open and Mark's voice cursed loudly.

"What the hell are you doing?" Derek demanded, reaching for a blanket to throw over Meredith.

"Christ, Shep, if you're going to fuck her at least lock the door," Mark groaned. "I don't want to see that."

"What are you doing?" Derek asked, still trying to calm himself down from the high.

"Addie needs you, Mer," Mark said. "She's mad at me, the only thing she said to me for the past hour is to find you."

"Oh," Meredith frowned, looking at Derek for a moment. "Can it wait fifteen minutes?"

"Half an hour," Derek corrected quickly. "It can wait half an hour."

"I don't think so," Mark ran a hand over his face. "She's pretty upset, Mer."

"Okay," Meredith nodded, her teeth chewing on her lower lip. "Um…can you…I need to get dressed, and then I'll…"

"Right," Mark nodded, closing the door behind him as he stepped out of the room.

Meredith turned to Derek with an apologetic smile as she reached for her bra and shirt. "Sorry, Der," she said as she pulled the shirt over her head.

Derek sighed. "Not your fault," he said. "Just…we'll make it up later."

"Definitely," Meredith nodded, leaning forward to kiss him. "Sorry," she whispered.

"For what?" Derek frowned.

"The fight."

"Oh," Derek nodded. "It's okay, Mer. As long as we're good now."

"We're good," she nodded. "And we'll finish this later, I promise."

"Good," Derek nodded, pressing a final kiss to her lips before pushing her towards the door. "Go fix Addie so Mark will stop annoying me."

Meredith laughed as she opened the door, her smile quickly fading as she saw Mark sitting against the wall, his face in his hands. "Mark?" she asked gently, moving to sit beside him. "What's going on?"

Mark looked at her, and she was surprised at how lost he looked, how sad his eyes were. "I don't know," he shook his head. "She just…came back from class and told me she never wanted to see me again and said if I wanted to be useful to find you. Then she locked herself in a stall in the girl's room and refuses to move or talk."

Meredith sighed as she looked down the hall to the bathroom. "Okay," she nodded. "I'll... I can figure this out. Don't worry, Mark, she loves you. I'm sure she's just…having a bad day or something."

Mark muttered something under his breath and Meredith didn't bother to ask him what he'd said as she stood and made her way to the girl's room.

"Addie?" she asked gently, seeing that only one shower stall was closed. "It's me, what are you doing?"

She heard Addison sniffle before her muffled voice asked, "Are you alone?"

"Of course I'm alone," Meredith frowned. "Addie, you're scaring me. What's wrong?"

There was a long pause, and a moment later the door opened and Addison stood in front of her, her eyes rimmed with red.

"I think I'm pregnant."