"Relax."

"I'm trying to. It's not easy when you are this close."

Derek whispered to her, "Try harder," as he bent down so that his lips brushed the side of her neck where her hair used to lay.

Tilting her head in automatic pilot, she squeezed her eyes shut trying to resist the soft pecks he was leaving on her. Futile as it was, she tried to block all old feelings of love and warmth between them out of her head. His arms folded around her waist and he gently turned her towards him. As she opened her eyes, he placed his palms on her warm cheeks and pulled her face closer to meet his.

As Addison's office door opened, she roughly pushed Derek away from her. Surprised to see someone enter before knocking, Addison swiftly walked to her desk.

Dell quickly looked from Addison to Derek and back to Addison. "Oh! Dr. Montgomery! I'm so sorry. I thought you had left with Naomi and Sam. They said they were meeting you and Dr. Shepherd for dinner. I assumed that you had gone already. I was just leaving some papers on your desk and locking up."

Addison forced a smile. "It's fine, Dell. We were just – um – getting ready to go." She glanced at Derek who was standing the corner stifling a laugh. Giving him a death glare, she returned her conversation with Dell. "You can go. I'll finish locking up here."

"Thanks, Dr. Montgomery. And remember," Dell pointed to forehead. "It's all up here. Doesn't go anywhere."

Addison smirked and said flatly, "That's good to know."

Dell nodded at Derek before exiting the room.

As soon as the door was firmly closed, Derek broke into a fit of laughter.

"Shut up!" Addison looked down at her desk, found a pen and threw it at him. "Will you be serious for once?"

Derek stepped to the side and let the thrown object hit the wall behind him. Giggling, he said, "I'm sorry, but your face was priceless when that door opened."

Addison glared at him. "Pick up the pen. It's my favorite one."

Derek grinned while bending down to grab the pen from the floor. He walked closer to her desk. While tossing the object back onto her desk top, he murmured, "Then don't throw it at people. You have anger issues."

Addison snatched the pen and placed it gently in her desk drawer. "We should go. We need to get ready for dinner." As she walked around her desk, she added, as an afterthought, "I hope you didn't unpack much."

"I only filled two closets and a dresser."

"Stop being a smartass."

"Stop pretending to hate me."

"I do hate you."

"No, you don't."

Derek moved in front of Addison, blocking her only exit. "I can't hate you for what you did. You can't hate me for what I did."

"I like trying to." Addison stepped sideways in an attempt to walk around Derek.

Derek grabbed Addison's arm and pulled her into him. "How's that working for you?"

Addison's resolve began withering away. "Not that well," she whispered.

Smothering his smirk, she grabbed the back of his head, pushing his lips onto hers. Derek responded by allowing his hands to work their way around her back. Arching higher, Addison broke their kiss and let her cheek rest on his. Derek leaned into her and stood still hoping she wouldn't put a halt on what he knew she was feeling.

Addison's hands fell to Derek's chest and he allowed her a bit more space between them. She tilted her head and began biting down on her bottom lip. "I don't think we should keep going. I don't know if it's right for either of us."

"Do you want to keep going?"

Barely a whisper, she answered him, "Yeah."

"Then, stop thinking."