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She still couldn't believe it. Derek had shown up at her apartment and kissed her like he was mad. She wasn't sure what had came over him, but whatever it was she was grateful for it. Even though she had enjoyed herself very much, there was still unanswered questions about it all. Why, did he decide just to randomly show up at her apartment and kiss her?

She felt him stirring under the covers and she opened her eyes to see him looking around him confused.

"Hey Hot Stuff, your finally awake." she said, kissing his cheek.

"Pen?" he asked.

He wasn't sure how he had gotten to Pen's apartment. The last thing he remembered was falling asleep at his place. Maybe he was still dreaming, he figured.

He sat up quickly and looked at her.

"How did I get here?"

"What are you talking about Derek?"

"How did I get to your place?"

"You drove over here about midnight. Why?"

"I didn't. I would've remembered it."

"Were you drunk last night?"

Derek quickly jumped up and grabbed his clothes.

"I'm not sure what happened last night, I have to go."

"Derek!" she yelled after him, but he was already halfway out the door.

*****************Only In My Dreams*******************

Work is gonna be awkward today. Pen thought as she applied her makeup and fixed her red hair in the most unique way she could think still couldn't figure out what was up with Derek. What was wrong with him? She had been the one of them having doubts, and he was the one that talked her into it. How could he not remember anything? Or was he lying? Pen just continued to look at herself in the mirror as she came to the conclusion, that he remembered everything and just had decided it was one huge mistake.

Once she was at work, she made a beeline straight to her office. She didn't want to talk to anyone about this. She worked on her daily required work and skipped the briefing, not wanting to face Derek.

If he wasn't drunk ,then why couldn't he remember? Pen thought angrily. She really thought it would be out of character for Derek just to show up ,demand sex of her and then pretend he had no memory of it.

About an hour later, JJ came to her office to give her the files she needed to run. The case was a two hour drive away, and some of them were going and some of them weren't.

She was almost pleased to see that Derek was going. She was really angry with him after what he had done to her.

"Hey Pen, you seem sort of zoned out, you okay?"

"I'm fine." she said., not taking her eyes off her computer screens.

"Are you sure? Hotch wanted to ask why you skipped the briefing this morning."

"I wasn't feeling well, that's all."

Pen turned back to her screens and started discussing the unsub and the case with JJ, not letting her even get a clue to what her and Derek had done the night before.

*******************Only In My Dreams*********************

Hotch, Rossi and Prentiss had taken the other SUV and Derek was with Reid in the other one. They were all going to ride together, but Derek had suggested it this way, because he knew Reid would know exactly what was happening to him.

"So not that I'm complaining Derek, why did you ask me to ride with you?"

"I have a problem Reid. A big one. Something that I can't control."

Derek told him about his sleeping troubles, taking the sleeping pills and then sleepwalking to Penelope's house. Reid was only silent for about five seconds after, his knowledge then taking over.

"Sleeping Pills are often known to cause a side effect of unusual dreams. In fact it's often listed on prescriptions as one of the main side effects. Did you sleepwalk before you took the pills?"

"No. I mean I sometimes talked in my sleep but that was it."

'What exactly happened when you walked to Penelope's house?"

"Does it matter?"

"Yes, it matters. Do you want to know what's happening to you or not?"

Derek sighed. "I thought all of it was a dream. It felt real, and I just thought it was a good dream until I woke up next to her."

"What did you do in this 'dream' Derek?"

"I had sex with Penelope."

********************Only In My Dreams********************

Pen was shutting down her computers, and getting ready to go home that evening. They had solved the case in one day, and they all were glad about that.

She was still-as much as she hated to admit it- thinking about Derek. They had went straight to Reid's office and were talking for a while. She wasn't sure what was up with that.

Once she was at home she found herself googling what was wrong with Derek. Besides being drunk, what made you forget the night before?

She found a link to a website all about sleeping pills. She read: Some patients are more sensitive that others to this medication. Can cause: Sleepwalking, Dizziness, Fevers.."

Sleepwalking. It made prefect sense. She used to sleepwalk when she was a teenager. She never could remember what she had done when she woke back up.

What she really wanted to believe was that Derek wouldn't use her for sex and that he really didn't remember. She didn't want to think of him in that way.

She quickly logged off her computer and was about to go take the hair pins out of her hair when there was a knock at her door.

The minute she opened the door, she was almost as surprised as the night before. There he stood.

"Derek, what are you doing here again?"

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