Rated M for a reason! This is slash. Contains a lot of sexiness. Um... yeah. This is my first Criminal Minds fanfic. Constructive criticism is encouraged, flaming is not. I don't own Criminal Minds. Enjoy!

Spencer Reid let out a low, erotic moan as his obvious sex dream began to heat up. Derek Morgan stirred, and looked around confusedly, unsure of what exactly had woke him up. When he heard another moan escape Spencer's moist, parted lips, he put the pieces together pretty quickly. With a hint of curiosity, and although he didn't realize it yet, sexual desire, he sat up and stared intently at Spencer. The young genius' breath was hot and heavy, his skin flushed a light pink color, and his hair splayed out around his head. He was clutching the sheets tightly, his eyes were squeezed shut, and his hips shifted , exposing the heated flesh of his lower abdomen.

Gulping, and realizing that he was extremely turned on, Derek quickly laid back down and put the scratchy motel blanket over his face. He suddenly regretted not taking Hotch up on the offer to sleep on the bed. They were staying at a motel for the last night before heading home, and unfortunately, Hotch, Spencer, and Derek all had to share a room. Spencer and Derek decided to sleep in the living room with Spencer on the recliner and Derek on the couch, while Hotch took up the one bed in the motel room.

"D-Derek... so big..." Spencer clutched his sheets even more tightly, his breaths growing more rapid and frantic. Derek immediately jumped up, his heart racing wildly. This can't be happening, he thought, and began pacing. I can't be feeling so... excited about this. And he can't be having a dream about me. This is wrong. Running a hand over his head, he tried to calm himself down. Finally, as Spencer's dream obviously changed, Derek began to breathe more evenly, and his thoughts were more clear. After he thought about what he should do, he decided to do what he felt was best: Just pretend it never happened. It wasn't exactly the best for him, or for Spencer, but in order to preserve their friendship and the team, it seemed as if it were the only option.

Finally completely calm, Derek laid back down and drifted off into the land of sleep. Sweet, dreamless sleep.

A week later, as Derek was finally forgetting about the whole ordeal, Spencer was just beginning to consider what it really meant. Oh, he remembered the dream quite clearly, but he'd had the dreams all the time. He didn't know, however, that he had been moaning and saying Derek's name, but that wasn't his biggest problem. His biggest problem was that he didn't know what to do about the dreams. It was getting harder and harder for him to conceal his feelings. He was a man of science, but he couldn't help the feelings that had overtaken him. They certainly weren't temporary, as he'd originally thought, but very long term, and very real.

After very close and careful consideration, Spencer came to the conclusion that the best solution for all involved would be for him to transfer. Telling Derek would ruin the team's dynamics, as Spencer knew that Derek was 100% straight, and not telling Derek would make Spencer want to explode. So, with an ache in his heart that he couldn't quite explain, Spencer walked into Hotch's office with a false confidence and eyes that showed way to his sleepless nights and sadness.

"Um, hi, Hotch. Sorry for such a short notice, but I'd like to... transfer." Reid said, his "confidence" suddenly failing as he looked at Hotch with a pained expression. Surprised and in a bit of denial, Hotch glanced up.

"What?"

"I want to transfer. I can't do this anymore, this job... I love it. I really do. And it does feel right to be here with all of you, but... there's just no way I can continue on here." Spencer said, unable to stop his hands from moving and his eyes from darting around the room.

"Transfer!" Hotch cleared his throat, trying to regain his composure. "If this is really what you want, there's no way I can stop you. I'll... go ahead and tell the chief. It's her decision from there on where you go. But, Reid, are you sure you've thought this through?"

Spencer hesitated, then nodded. "Yes. It's, uh, it's for the best. I'll go say goodbye to the team. Thank you, Hotch. You've... it's been wonderful." With a slight nod and a half-smile, Spencer turned and left, leaving Hotch confused and more than a little worried.

With a racing heart, Spencer looked around the bullpen at his coworkers and friends. With more than a twinge of panic, he walked down and announced his transfer to Emily, who then shouted it, allowing everyone to hear. Suddenly, everyone was surrounding Spencer, bombarding him with questions.

"Baby genius! You can't go. Why would you want to leave our dysfunctional little family?" Penelope Garcia cried as she hugged Spencer tightly.

"Sorry, Garcia... It's for the best."

"You'll come visit Henry every once in a while, right?" JJ asked, with tears in her eyes. Spencer looked down, a small smile playing at his lips, and nodded.

"I hope you find whatever you're looking for," Rossi said, squeezing his shoulder.

"Me too." Spencer responded, unable to look him in the eyes. Prentiss said a quick goodbye and gave Spencer a hug, trying not to get too emotional. And finally, Derek just stared at Spencer, incredulous.

"You... you're really going?" Derek asked unsurely.

Spencer backed away, "Sorry," he murmured, and left quickly. Everyone stared after him, unsure of what had just happened. Still in shock, Derek sat back down at his desk, trying to concentrate on the paperwork in front of him. Of course, he knew he had to talk to Spencer, otherwise he wouldn't be able to get the whole thing out of his mind.

Later that night, at around 11, Derek stood in front of Spencer's door. His mind and heart seemed to be in sync, both racing very quickly. Finally, after working up the courage, he knocked on the door and held his breath. Spencer opened it... and Derek forgot to start breathing again. There in the doorway, Spencer was standing in only his boxers, his hair tousled and his whole body flushed, just like that night. Strangely, Derek couldn't stop staring at Spencer's body. He'd never seen him with quite so little clothing. His heart became wild, about to beat out of his chest.

"Uh... De-Morgan? Why are you here?" Spencer asked and pushed the door forward like he were about to shut it.

"I just really need to talk to you, Reid. Can I come in?"

Reid hesitated, a war raging in his head. "Sure..." He responded, and allowed Derek to walk in, closing the door after him. "Listen, if this is about me leaving, then I'm sorry. I can't do it anymore, Der- damn it! Morgan. I meant Morgan." Exasperated, Reid fell back onto his couch like a carcass, and rubbed his forehead. "Sorry. I'm sorry. I'm tired. You should... you should go."

Derek, seeing just how agitated and tired Spencer was, sat next to him on the couch. "I'm here for you, man. You can tell me anything. You do know that, right? I'll always stand by you, no matter what. So, if you want to talk about why you're deciding to leave, then I'm here." Derek said softly, trying to make eye contact with Spencer, who blatantly avoided it. Their body heat seemed to mingle, and Derek unconsciously leaned into the scent of Spencer.

Spencer smiled. "Don't make promises you can't keep. If you knew why I'm deciding to leave, you'd make sure I was transferred as far away from you as possible."

"There's nothing you could ever do or say to make me want you away from me." Derek said seriously. When Spencer didn't respond, Derek got up and squeezed his shoulder, then left, but not without taking another backward glance at the body he couldn't seem to keep his eyes off of. Derek, not really thinking anything of it, licked his lips and shut the door, his mind wandering to things he couldn't believe he'd even imagine. Realizing his pants were growing uncomfortably tight, Derek quickly turned and left, trying to control his thoughts. Oh, the things he would do when he got home...