Spencer Reid eyed Morgan carefully through the crowd of people in the club. The team had decided to take a night off and have some fun. Morgan stalked off and danced with a beautiful blonde girl who fell for his charms instantly. Reid had felt a little jealous at how easy it had been for Morgan to pick girls up, but he had gotten off that train ride a long time ago. Now something else boiled in Reid's mind: revenge.

Not long after the screaming trick he had pulled on Morgan, Reid had fallen pray to one of Morgan's other pranks. Reid still believed his last prank was a little below the belt.

He had walked into the bullpen one morning and to the small kitchen area in a drowsy state, desperately needing coffee. However, when he opened up the packet, there was barely a crumb of grounded coffee in the bag. Reid spent five minutes tearing the area apart looking for coffee, but to no avail. Only then did he realize Morgan facing the opposite direction at his desk, hunching over his paperwork and shaking with laughter.

Oh yes, revenge was definitely in order. The question was what to do. He would ask for advice, but this was between them…and Reid was determined to win.

He had already tampered with Morgan's technology, had already wounded his ego in basketball, but now it was time to strike elsewhere. What else made up Derek Morgan's personality?

Reid sat up straight as he found the answer while watching Morgan flirt: his masculinity.

"You alright, Reid?" Prentiss asked him, raising one fine eyebrow and smiling.

"Is that Morgan's?" he asked her, pointing to a glass on the table.

She nodded, now looking confused. "Reeeeid…" she said warningly as he grabbed the glass and made his way over to the bartender.

"What'll it be?" he asked Reid.

"The hardest thing you've got."

The buff man nodded and walked away. Seconds later, he returned with the glass full of a lime liquid.

"It's a little combination of the strongest liquor we've got. Drink that and you'll be more than drunk," he informed Reid. "Are you sure you want it?" He eyed Reid's thin, lanky body with apprehension.

"Absolutely," said Reid, paying for the drink.

He set it back in its original position on the table next to Prentiss.

"Reid, what are—"

"Emily," he said, staring at her intensely, "do not tell Morgan."

She didn't agree or disagree, but rolled her eyes and struck up a conversation with J.J. at the end of the table.

Reid sipped on his Coke happily for a couple minutes before Morgan finally made his way over to the table with the pretty blonde at his heels.

"What's up, kid?" he greeted Reid. "This is Natalie. Natalie, this is Spencer."

They shook hands.

"Should we go?" Natalie whispered to Morgan.

Morgan smiled at her. "Sure thing, sugar."

"The bartender filled your drink up," said Reid very casually, indicating Morgan's glass. "I think he's charging."

Morgan muttered something, but picked up the glass and downed it. He winced.

"Ech, that is not what I ordered."

Morgan shook his head distractedly and then escorted the lady out with a goodbye to everyone at the table. Reid kept a great poker face on the entire time, but once Morgan and Natalie had walked out the bar, he grinned wickedly.

"You don't even know what that was, do you?" Prentiss asked him.

"Not a clue," he replied, now smiling widely. He stretched out his arms and stood. "But I hope I find out tomorrow. See you, Emily." He waved goodbye to the rest of the team and left the bar.

The next morning, Reid sat at his desk with a large cup of coffee and a pile of paperwork in front of him. Prentiss hadn't said anything about last night, so he tried to keep a straight face even as Morgan threw his large bag down on the desk. Seconds later, Reid's chair spun around and a very angry face towered over him, glaring.

"Morning, Derek," said Reid mildly.

He could almost feel Morgan shaking with anger. "What," he said in a deadly whisper, "did you put in my drink?"

"Nothing," replied Reid truthfully.

"The fact that you know which drink I'm talking about proves that you had something to do with it."

Reid tried to force back his laughter. "Do with what?"

Morgan glared daggers at him. "When I was apparently so drunk that I couldn't find my own house, Natalie told me off for being a disposable freak and took a bus home. Then I woke up with the worst headache of my life and threw up twice. I had one drink before that one you gave me." He bent down closer to Reid's face. "One."

Reid wondered briefly if the feeling in the back of his throat was guilt, before he opened his mouth and nothing but laughter rang out. He even heard Prentiss chuckle from his right.

"Oh, laugh all you want, Pretty Boy," snarled Morgan, stand up straight and glaring down at the laughing brunet. "Just remember what I said about paybacks."

"I will eagerly be awaiting your act of revenge," said Reid, almost tearing up from laughing so hard. "But in the mean time I'm going to enjoy this moment of victory."

He turned his chair away from a sneering Morgan, took a sip of his coffee, and returned to his paperwork. He glanced up only to see Prentiss walk by him, shaking her head but smiling all the same.