Sam had to go directly to the hospital to see a patient, but gave Addison a ride and dropped her at the practise building. It had been a wonderful morning for him and the great sex a few minutes ago had relaxed him entirely, yet it didn't seem to have the same effect on Addie. She was still lost in thoughts and he had given up to ask her for an explanation. Maybe she had just a weird day and if it was something serious, she would come around sooner or later.

Addison felt Sam's questioning gaze on her, but it didn't feel right to tell him the reason for her weird behaviour just now. The spontaneous morning sex...he could get it wrong if she told him that Derek was living at her house since yesterday.

Besides she didn't even want to behave weird. And that was the problem here!

Getting out of the car she kissed him on the cheek and inhaled the semi-fresh city air to clear her head, before she headed into the building.

"Nae, I have to talk to..." She began only just now noticing that she really shouldn't talk to her about this. Usually she would, but Naomi was incredibly sensitive when it came to anything that could remotely include Sam and she couldn't blame her. If it was vice versa, Addison would be too. And then again she was back at thinking of him, ugh!

"Never mind..." She stopped herself and left a confused Naomi behind her as she walked straight into her office.

xxx

Around lunchtime Sam peeked into her office.

"Hey! Guess who is in LA these days..." He began excitedly until he noticed the not so very surprised expression on her face.

"Wait. How do you know? I just met him in the scrubroom of St. Ambrose, no way that..."

"He is staying at my house." Addison interrupted him and looked as if he had just caught her doing something really, really bad.

"Well, o-okay." Sam was even more surprised now and honestly didn't know what else to respond to that.

"Amelia asked him to come to help her with that difficult neurocase and invited him to stay with us during that time. He came yesterday."

"Why didn't you tell me? I would've come over to chat with you guys..." Sam didn't seem to be concerned at all. Well, of course, that was just like him. He loved her and he trusted her and he had certainly missed his friend, too. Addison started to wonder, if she was really the only one, who was not supercomfi about all this.

"It was kind of late and I was surprised myself. Amelia didn't tell me that he was coming."

She shrugged while staring at her computer.

"Well, I guess he's gonna stay a couple of days anyway, so...Addison?" She seemed not to be paying attention at all.

"Huh?...Oh, I'm sorry, Sam, it's just this...case I have..."

"Okay, I better leave you alone." He smiled at her lovingly. "Don't work too much, babe. See you later!" He winked at her and left.

Addison sighed and kept following the bouncing screensaver bubbles with her eyes for a while. Then she cleared her throat to get back to life and went in the hall to look for the next patient.

xxx

Derek came home exhausted.

He was the first one, Amelia had to see a patient at the practise and had given him her keys to Addison's house.

The fact that Addison wasn't there either made him feel slightly uncomfortable, although it was easy for him to get around in the house. He had already noticed yesterday that her way of putting things in a certain order hadn't changed that much.

Also there was this familiar scent all around, just slightly different from the one that had filled their house in New York. Just missing his aftershave. He smiled at this discovery, but that smile faded quickly as his thoughts went further.

He could see why Amelia stayed here instead of buying an apartment of her own. She loved Addie more than anything else, he knew that. Sometimes it had seriously annoyed him having her around so much in the Brownstone, especially when he and Addie had had a day off and wanted to do what couples do, without a teenage sister in the house.

Well, now looking back that seemed ridiculous. Now he was living with Meredith and a bunch of her friends, who he wasn't even close with. He had never thought that he would end up like this.

Then suddenly a smiling Sam knocked against the glassy backdoor. Derek was half glad to see him. The other half...well, he didn't really know what is was.

"Hey, man! Are you all alone in the big house?"

"Looks like it..."

Sam laughed and they hugged mateyly.

"Yeah, Addie was pretty busy at work. Want a beer?" Sam asked and walked over to Addison's fridge without waiting for an answer.

"Who's busy?" Addison, who had just arrived, peeked around the corner and smiled at both of them, Amelia standing behind her.

"Hey, babe!" Sam went directly to her and kissed her and Amelia walked over to her brother to tell him, that their patient's lab results were good for now.

However, Derek couldn't really manage to focus on what his sister was telling him. Not only that he had never seen Addison with a real boyfriend before (except back in medschool with this rich guy Bizzy wanted her to be with and that didn't count as real). He felt like in a bad dream, where he had to watch his life from the outside, as if Sam had switched roles with him. Well, actually he had.

"Hello? Derek, can I talk to you for a sec?" Amelia punched him in the side to get his attention and pulled him outside to the patio.

Sam was still in the kitchen preparing a salad and Addison just wanted to go outside with the dishes to get the table ready for dinner, but stopped as she saw Derek and Amelia and decided not interrupt a brother-sister conversation.

"Derek, what the hell is going on?" Amelia whispered incensed. "Did you even hear what I just told you about the patient?"

"What? Yes...No...ugh, I'm just tired..." He sighed and rubbed one hand over his face.

"No, Derek, you're not! Well, maybe you are...but that's not the point! The way you just stared at Sam and Addison...let's just say: Nae does that, too!"

At this point Sam came with the salad bowl. "Ready?"

"Yeah, dude, that looks delicious!" Amelia loved Sam's food and added only for Derek to hear "I love you, but get it together!"