Derek paced the floor of their bedroom, a week later, running a hand through his hair. Meredith was still getting ready in the bathroom, and in a few minutes they would go to his intern mixer so that he could meet the people he was going to work with for his residency. He'd meet his bosses, and then this whole entire thing would become completely real.

"Mer, come on," he called. "We're going to be late."

"Relax," she called through the door. "No one ever gets to these things on time. And you do not want to be the loser who shows up first."

"Well, thanks for looking out for me," Derek laughed.

"No problem," she giggled as she opened the door and stepped into the bedroom. "How do I look?"

Derek stared at her for a moment, completely forgetting completely everything besides the way her dress dipped down to reveal the perfect amount of cleavage, the way it just barely grazed her knees. A pair of black heels made her a couple inches taller, almost eye level with him and her hair fell around her shoulders in gentle waves. "Wow," he breathed.

Meredith smiled as she turned in a slow circle so he could get the full effect of the dress. "You like?" she asked.

"You look…hot," Derek breathed.

"Good," she smiled, turning to him. "You don't look so bad yourself."

"I'm wearing your favorite shirt," Derek smiled as she moved closer to him.

"Your good looking shirt," she nodded as she smoothed the collar down.

"I'm always good looking," Derek breathed against her lips.

"Sure," she smiled. "Come on, Dr. Shepherd. You've still got to last until midnight before the bet is over."

Derek groaned slightly, trying to ignore the seductive way in which she called him Dr. Shepherd. Five hours. He could wait five more hours before he could make passionate love to her.

"You okay?" she giggled as she settled into the car, her dress riding up on her thigh a little higher than it needed to.

"Fine," Derek groaned. "But if all my colleagues get the wrong impression of me, it's your fault."

"Oh, I don't think that," she said, eyeing the bulge in his black dress pants, "will ever give off the wrong impression."

"Glad you think so," Derek laughed shakily.

"But I'm banning you right now from on call rooms," Meredith continued.

"What?" Derek asked. "Why?"

"Derek, I'm not even a doctor and I know that on call rooms are used for sex, not sleeping," Meredith replied. "So you're not allowed in them."

"You said you trusted me," Derek pointed out.

"I do," Meredith nodded. "It's the slutty nurses I don't trust."

"Fine," Derek nodded. "I'll just…sleep in the conference rooms."

"Good," Meredith giggled. "But you know…if I ever feel the need to come visit you at the hospital, I think I can wave the no on call room rule."

"Well, let's be grateful for that at least," Derek laughed, pulling into the parking lot. "Mer…" he breathed, turning to look at her.

"You're going to be fine," she said softly, reaching to cup his cheek. "I love you. And you're going to be an amazing doctor, Derek."

"Thank you," he whispered softly. "I love you too."

"I know," she smiled, leaning forward to kiss him softly. "Let's go."

They met at the front of the car, Derek taking her hand as they walked into the reception hall, immediately surrounded by doctors. "Oh," he breathed.

"You're going to do fine," she whispered. "I'm here."

"All I need," Derek smiled, squeezing her hand. "Drink?"

"Tequila," she nodded.

"Sure," Derek nodded, moving towards the bar.

Meredith wrapped her arms protectively around her torso as she watched Derek walk towards the bar. He was definitely hot, and it was everything she could do not to run over and throw him onto the surface of the bar. She'd been living with a dull ache for him for the past two weeks, and she couldn't wait to feel him inside of her again, pushing deep into her as his hands ran over her entire body.

"Looking good, Grey," a voice said from behind her, and she turned to see Mark approaching her, Addison's hand linked loosely through his.

"Mark," she rolled her eyes.

"That's no way to greet me," Mark frowned. "I'm a doctor, you should bow at my feet in awe."

"You were an idiot well before you were a doctor," Meredith stated.

"I'm offended," Mark said.

"She's right," Addison giggled.

"Okay, you need to stop talking," Mark said. "Or else I'll be like Shep over there and withhold sex."

"Please," Addison rolled her eyes. "You wouldn't last."

"I would," Mark nodded.

"Really?" Addison raised an eyebrow. "So if I told you that I wanted to go check out the on rest rooms right now, you'd say no?"

Mark stared at her for a moment before he rolled his eyes and grabbed her hand. "Let's go."

Meredith giggled as she watched them walk away, smiling as she felt Derek press a glass into her hands. "Thanks," she smiled, knocking the shot back.

"Mark's already having sex?" Derek laughed.

"Hmmm," Meredith nodded. "You should mingle, Der."

"Have to show you off," he smiled, pressing a kiss to the side of her head.

"I think the point is to show yourself off," Meredith giggled.

Before Derek could respond, Kathleen approached them, smiling widely. "Hi," she exclaimed. "Derbear, I didn't know you were going to bring Mer."

"Don't call me that here," Derek rolled his eyes. "What are you even doing here, you're not a surgeon."

"Psych gets interns too," Kathleen rolled her eyes. "But I'm so glad there's someone I actually like here. Derbear, you go mingle while I talk to Mer."

Derek frowned. "I'm beginning to think that you like my girlfriend more than me," he said.

"I do," Kathleen nodded. "Now go. Meredith doesn't need to make small talk. You do."

"Fine," Derek sighed. "You'll be okay?" he asked Meredith.

"I'll be fine," she smiled.

"Good," he nodded, taking a deep breath before he moved towards the crowd.

"How are you feeling?" Meredith asked Kathleen as they settled onto a couch.

"Pretty good," Kathleen sighed. "Although I forgot how horrible these things are without alcohol."

"I can't even imagine," Meredith sighed. "My mom used to come to this stuff all the time. She dragged me a couple times, but I always hated it."

"And now you have to come because of Derek," Kathleen nodded.

"I didn't have to come," Meredith shook her head. "I wanted to."

"You're crazy," Kathleen laughed.

"I only wanted to tease Derek," she giggled. "He actually thinks he can last longer without sex than I can."

"Too much information," Kathleen winced.

"Sorry," Meredith said, glancing over at Derek as he chatted with an older man across the room. He glanced over at her, and she smiled slyly, crossing her legs so that her dress inched up her thigh, causing Derek's eyes to widen slightly. He lifted his drink up his lips, downing the rest of it without taking his eyes off of her.

"You're evil," Kathleen laughed.

"I know," she giggled. "Although it hasn't exactly been easy for me either. Derek's pretty hot."

"And this is where I really wish I had alcohol," Kathleen sighed.

"I'm stopping," Meredith smiled. "Is Meg excited for second grade?"

As Kathleen launched into a long rant about Meg's preparation for a new school year, Meredith's eyes wandered back to Derek. A younger woman with dark brown hair had joined the group, and Meredith's eyes narrowed as she watched the woman inch closer to Derek. She knew he wouldn't do anything with any other women, but she still didn't like the way the woman was advancing on him. He looked especially hot tonight, and she didn't want anyone to think that he wasn't completely spoken for.

"Sorry Kath," she murmured. "I um..I have to go do something."

Kathleen's eyes trailed over to Derek and she nodded knowingly. "I see," she said, getting to her feet. "I should meet some interns anyways."

Meredith walked over to the bar and ordered another shot of tequila before she made her way back to where Derek was standing with the stupid hot woman. "Hey," she said, appearing at his side and sliding her arm around his waist.

"Ah, Meredith," Derek smiled, turning to her. "This is Dr. Torres. She's going to be an intern with me. Dr. Torres, this is my girlfriend, Meredith Grey."

"Nice to meet you," Callie smiled as she shook Meredith's hand. "Are you a surgeon too?"

"Oh no," Meredith smiled. "I'm not a doctor. I'm just arm candy for Dr. Shepherd here."

"Oh," Callie nodded as Derek frowned down at her. "Well, I'm going to go get some more drinks. It was nice to meet you, Dr. Shepherd."

"You too," Derek said distractedly as he looked down at Meredith.

"Derek," she breathed as she moved closer to him.

"Hmmm," he groaned, pulling her close.

"We…can you leave yet?"

Derek swallowed hard as he looked around the room, his gaze finally settling on her, taking in her flushed features. "I think I'm supposed to stay for more than half an hour," he breathed, trying to figure out how stupid he actually was.

Meredith frowned for a moment as she reached between them to gently graze the bulge in his pants. "Okay," she finally said. "I think I need another drink."

Derek watched as she made her way towards the bar, hopping onto a stool as she leaned across the counter. She glanced over her shoulder, offering him a sly smile before she reached for the glass the bartender was being offered to her. She was so incredibly sexy, and he was quickly starting to realize that ending this stupid bet with her would be completely worth not socializing with anyone he would be working with.

He started to make his way over to the bar where she sat, stopping when a woman stopped in front of him, offering her hand. "Hi, I'm Kristen Peters," she said. "I'm going to be an intern."

Derek groaned inwardly as he offered his own greeting, his eyes still on Meredith as she leaned against the bar, watching him as she sipped her drink through a straw. Torture, this was complete torture.

From the bar, Meredith watched as Derek shifted uncomfortably on his feet, obviously not paying attention to the woman who was speaking to him. She caught his eye, casually leaning forward to offer him a glance at the cleavage her dress had to offer, and she smiled slyly as she watched him pull at the collar of his shirt.

"Hi," she heard a voice say from beside her. "I'm George."

Meredith tore her eyes away from Derek to look at the baby faced man sitting beside her and smiled politely. "Hi," she said.

"Your dress is really…great. I mean it's very…flattering or something," George stammered, and Meredith shrugged.

"Thanks," she said.

"Are you an intern?" George asked. "Cause I am. It's pretty crazy, isn't it? That we're going to be doctors tomorrow."

"I'm not a doctor," she shook her head. "I'm here with my boyfriend."

"Oh," George nodded, deflating slightly. "I'll um…let you get back to him."

"It's okay," she smiled slightly. "He's off showing himself off. Tell me about yourself. Are you an intern?"

"Oh, well, I'm a surgical intern…" George started talking, and Meredith looked beyond him to meet Derek's gaze.

He was staring at her with smoldering eyes, not jealous, just turned on. She met his gaze full on, nodding along with George as he spoke but her eyes completely focused on Derek as he stared back at her with wide eyes.

"You know what, I'm really sorry, but I forgot something in my car," she said as she turned back to George and slurped the last of her drink down. "It was really nice to meet you."

George blinked in surprise as Meredith slid off the stool, making her way towards the door.

"Excuse me," Derek said, coughing slightly as he moved towards the door himself. "I've got to, um…get something from my car."

As soon as Derek was out the door, he was pulled into an alley by a tiny arm. He stumbled slightly before he realized that it was Meredith who was kissing him passionately and wrapping a leg around his waist.

"Mer," he breathed.

"I'm not giving in," she breathed against his lips as he pinned her against the wall of the building.

"Me either," he murmured.

"Good," Meredith nodded.

"Not…we have to wait until midnight," Derek whispered, reaching under her skirt to pull her panties down.

"Public," Meredith murmured as she reached for his belt buckle.

"So….wrong," he moaned, moving his lips to her neck.

"Derek," she moaned quietly, rubbing her body against his.

"I'm still not giving in," Derek breathed in her ear, entering her for a moment before pulling out.

"No…no giving in," Meredith shook her head as she raised her hips to lower herself onto him.

"Oh my God," Derek moaned, thrusting fast and hard into her.

"Yes," she groaned, throwing her head back as she let the incredible pleasure of him being inside of her completely overtake her.

Derek continued to move inside of her, losing himself in the incredible feeling of her warmth surrounding him. This intern mixer wasn't so bad after all.