I'm sorry for how short this is but once again it was written on my phone, so I hope you forgive me for the length.
A special thanks go to anna3311234, Wolflover235, and MaeKat for all of the sweet words, the love, and the excitement for this story. Words can not express my gratitude I feel toward you! Thank you so much!

Chapter 10: Pieces of the Puzzle

Blood boiled in Lucifer's veins, pulsing through his core like a clock.

Boom.

Boom.

Boom.

His heart was steady though it pounded through him, quickly becoming the only thing he could hear outside of his own labored breathing.

Anger was a living thing, pulsating around him like a second skin. It was a parasite, feeding on any logical or rational thought and all other feelings.

Why did he not keep his mouth shut? Why did he have to tell Sam he loved him when it was obvious that Sam was not ready to hear it? He had followed the hunter around for weeks, hidden in the shadows and his voice a mere whisper on the wind that Sam would he unable to hear so why was he angry?

Because Sam did not know him the same way? Because Sam was human and all humans believed he was a monster to monsters. The devil. Satan himself in the flesh, stalking the human like the pervert he no doubt thought he was?

He growled his frustration, running his hands through his hair, pulling at it occasionally.

He should have know better than to throw that kind of information on the human. Sam did not know a fraction of what Lucifer did. He was not aware how perfectly they would merge together and become one.

Stupidly he had forgotten about Sam being human if only for a moment.
The anger was still cloaked around him as he walked aimlessly around the town ignoring the trash people were screaming at each other in their front yards.

He needed a way to work off the fury he was feeling.

Then it hit him.

War was happening over seas. A country where furthered killing their own people with a chemical weapon that made you bleed from the inside out. All of that death going to waste.
Ordering daemons there, he found himself flying to the country to take advantage off all of the dying people.
Like any decent person going through a self inflicted depression, he was going to eat his way through it.

...

Blood was everywhere. The smell was so wrong it hit him like a brick to the face. Finding his demons, and with a snap of his fingers, he found himself sitting in the middle of a park covered in the thick blood that kept his vessel together.

Nobody noticed him gorging himself, killing demon after demon for the delicious life source they carried.
When he was unable to hold any more, Lucifer stopped, never feeling as sated as he did at that moment.
Now the question remained. How was he going to make Sam understand what he had done?

...

Sam did not see hide nor hair of Lucifer for the next few days. He thought it was because the Archangel wanted to give him ample time to think about his feelings but there was a small voice in his head that whispered that he was mad at him for not returning his feelings.

Sam did not know Lucifer very well though his body did not seem to care judging by the way it responded to him.

Did he love him?

Did his body react to Lucifer because it knew better than his mind that it would one day belong to the devil?

Sam did not know what to do.

Dean noticed the change in his brother's behaviour the next day but decided not to say anything until he got more of an idea on what exactly had made the change. In the mean time he hoped it was just boredom setting in from the lack of hunting. Maybe he should do some research and see if he could find something for them to do.

That night, sitting down at one of the many diners for dinner, Dean decided it wouldn't hurt to ask what was wrong. He wouldn't push, he would just ask because he cared about his brother.

"You okay?" Dean asked, popping a fry into his mouth. "You seem a little out if it."

Sam picked at his salad with his fork absently.

"Can I ask you a question?" The taller man asked as if Dean had not said anything.

"Sure."

"How do you know if your in love?"

Dean stared at his brother, a furrow between his brows. Who could Sam have fallen in love with? He hasn't been around anyone other than him.

Oh God, please don't let it be him.

"Wouldn't you be the one to know? You know, with Jess and everything?" Dean asked, folding his arms over the table to look at his brother.

"I guess." Sam mumbled.

Dean licked at his lip wondering if he should ask for more details.

He cleared his throat. "Is there anything you want to tell me, Sammy?"

Sam looked up from his plate, giving his brother a look that said he was still lost in his thoughts.

"No, just thinking I guess."

That told Dean all he needed. He was going to keep an eye on his brother. Somehow he knew Lucifer was involved though how he knew he was not sure.

Sam went back to picking at his salad.

...

Sam was asleep in the bed, snoring softly. The maid had been in earlier that day with clean sheets and Sam had decided they needed to be broken in with a nap.

Dean looked across the room at his brother, speaking in low whispers to Castiel.

"Lucifer's in town. I know it."

"Is he being troublesome?" The angel asked, looking closely at Dean.

"No but I think he's getting to Sam." Dean ran a hand down his face, trying to keep the anger and betrayal out of his voice.

"How so?" Castiel turned his head to an angle.

"He asked me today how he would know if he was falling in love. He hasn't been around anyone other than me since we left Virginia."

Castiel nodded his head as if it made sense to him.

"If he is able to make Sam love him it would be easier to make him say yes than if he were afraid of him or if hate consumed him about the Apocalypse. Love is a powerful thing, Dean. Do not underestimate it."

The hunter chewed on the inside of his cheek in thought.

"So, my little brother is honestly falling in love with the devil?"

Castiel looked past Dean at Sam laying on the bed, fast asleep.

"Yes."

"Son of a bitch!"