It's been awhile since I've posted anything, but I've been working on a couple of these oneshots. These are a lot of fun to write and there are just so many things to do with them. This one just sorta came to me, and this is what ended up.

He was never one for large groups. He was fine with the little celebrations Mikey would randomly decide to throw, but he wasn't used to any group larger than five or six. He gambled that was why he was looking for his vigilante friend instead of socializing with other mutants.

A few weeks after the saving of New York City, Mikey had suddenly exclaimed that they should celebrate. He, along with his other brothers and father, had agreed. It was then that he had faltered in his acceptance of his baby brother's idea. "Let's invite Kurtzman and the Might Mutanimals!" Mikey had said.

Raph had instantly agreed, wanting a chance to talk with Slash again. Donnie had rubbed his hands together and claimed it was the perfect opportunity to get back at that monkey. Mikey had just been excited for a chance to hang out with Leatherhead again. When April had found out, she had asked to bring her father, saying she'd also like to talk to Kurtzman. Raph had then joked Leo would have a great time hanging out with Pigeon Pete (to which he had rolled his eyes). Even Splinter had thought it was a good idea.

Leo hadn't liked the idea, as he had no real connection to any of the mutants. Not to mention he didn't fully trust Slash still either.

The whole idea just didn't sit well with him.

The night of the party had come much too soon for the blue-clad turtle, though his brothers would highly disagree. Mikey had outdone himself, by decorating to make the lair seem more "lively". He had made his own pizzas for each party member, some not as gross even as they usually were.

While his family was getting ready, Leo sat in his room, trying to ignore the slight jitters he felt. He scoffed at his nervousness; he could take on death but attending a party was terrifying. Maybe it was that he hardly knew anyone, but he thought it was just that he didn't particularly even like the party comers. Sure they were allies, but that was all he thought of them as. He mused at least he would have Casey to hang out with since the human teen didn't really know any of the mutants, and probably wouldn't get along with either.
d
The loud rapping on his door startled him out of his thoughts. "Come on Leo! Get out here before our guests show up!" Mikey yelled. Leo heard his brother's footsteps recede before heaving a sigh and slowly standing. He really didn't want to do this.

April had come in first with her father in tow, both wearing matching smiles as they greeted the turtles and Splinter. Next came Kurtzman with the Mighty Mutanimals in tow. Mikey had immediately run to give Leatherhead a hug while Donnie and Rockwell had started teasing and arguing with each other. Raph greeted Slash with a large smile and Pigeon Pete with annoyed huff. Leo and Slash sent a quick look each other's way before turning their attention away. Leo was given slight satisfaction at that. He greeted the other mutants with a nod of his head in acknowledgement while he shook Kurtzman's hand.

Each party member quickly formed small groups. April, Donnie, and Rockwell had sat in the kitchen, while Mikey and Leatherhead stood close by, near the food of course. Raph, Slash, and Pete had gotten comfortable on the couch to talk. Even Splinter, Kurtzman, and Mr. O'Neill had formed a small group to chat. Immediately Leo felt left out, not knowing what to do. Joining the others seemed to awkward for him. And he still didn't know where Casey was.

The eldest turtle was about to ask April, however awkward that may be, when the red-headed girl's phone suddenly buzzed. She opened it up and frowned. "Look's like Casey won't be joining us." She said. "He says he's got hockey practice." Leo's heart sank. Now he really felt out of place. Donnie shrugged, his eyes brightening a bit, but no one else seemed to care much.

Looking around, the blue-clad turtle lightly sighed. Mustering of all of his ninja skills, he snuck of the lair unnoticed. If he wasn't going to enjoy this "party", then there really was no reason he should stick around.

Running across the rooftops, Leo heaved a relieved sigh as his nervousness ebbed away.

As much as he loved his brothers, he just couldn't handle large groups. Especially ones made up of former enemies and just strange characters. He mused that Splinter would scold him for leaving so rudely and his brothers would complain (or whine in Mikey's case) but that didn't faze him as he sped towards his destination.

The blue-clad turtle was incredibly glad he had been to the ice rink Casey practiced at. Landing on the building, Leo glanced inside through one of the multiple windows. He immediately saw his dark-haired friend hitting a puck and throwing his hands in the air as the puck sailed into the goal. With a roll of his eyes, the turtle slowly lifted the hatch on one of the windows and slipped in, not alerting the human below. Unable to hide the sly grin that spread on his face, Leo quietly leaped off the beam and landed near one of the doors leading out of the rink. He tiptoed by the stands, barely stifling a laugh as he snuck up behind the unsuspecting teen, who was wiping off his hockey stick.

"BOO!"

Casey whirled around with a very girly shriek and swung his stick out. Leo barely managed to dodge the sloppy attack and started laughing. Casey stared at him, bewildered, before frowning and crossing his arms. "Not cool, blue."

Leo tried to stop his laughing to answer with a Oh yes it was! but couldn't contain himself and he fell over onto his shell. Slowly sitting up, but still huffing a bit, the turtle have the pouting Casey a lopsided smile. "You should have seen your face."

"You can be a real jerk you know." Casey said. "Almost as bad as Raph."

Leo rolled his eyes and stood up. "If I was Raph, I would still be laughing."

Casey couldn't help the smile that came to his face. "I guess that's true."

The two awkwardly stood, not sure what to say. Leo cleared his throat before he started to pout. "Well you deserved it. I had to sit at the little get together in the lair by myself, waiting for you to show up." He placed his hands on his hips. "Then April gets a text that you aren't coming and I had to sneak out. Now I'll probably get whined at for leaving."

Casey rubbed the back of his head as he sheepishly grinned. "Yeah sorry bout that. I had some extra hockey practice tonight to get ready for a game coming up soon."

Leo looked around. "So where's the rest of the team?"

"Uh, I stayed late." Casey said after a slight pause.

The turtle narrowed his eyes. "You're just making up that you have hockey practice aren't you?"

Casey's eyes widened. "What?" He shook his head quickly, too quickly for Leo's taste. "No way man! I'm not scared of those mutants!"

Leo raised a nonexistent brow. "Oh really? I don't remember claiming you were afraid of them. I simply said you made up hockey practice. Unless I'm missing something?"

The dark-haired teen looked down. "Sorry Leo."

The blue-clad turtle bit his lip, surprised at the human's sudden guilt. He placed a hand on Casey's shoulder, making the teen look up. "Don't feel bad about it Case. I didn't want to be there either."

Casey rolled his eyes, regaining his usual spunk. "Well I can see that. So why did you leave then? I don't take you as the type to be afraid of those mutants."

"It's not that I'm afraid of them, yeah. I, well." The turtle hesitated. "I just don't trust them I guess."

The human nodded. "How come?"

"Well, seeing how Slash tried to kill me, Donnie, and Mikey, I think that's pretty self-explanatory." He felt some reassurance at Casey's nod of understanding. "And then you've got Rockwell, a mutant monkey we met once back when he wasn't really anything but a monkey. Now all of a sudden we meet this psychic monkey with an attitude problem. There's Leatherhead, who's not bad but can get pretty scary when he's angry. I don't know if you've seen him at his angriest but whatever you do, don't make him mad. He'll grab your face and shake you around." Casey's eyes widened slightly.

"Well I happen to like my face." He said with a cheeky grin.

Leo nodded with a smirk. "And lastly you've got Pete. Some strange mutant pigeon-human that will do anything for bread crumbs. I don't think anything else has to be said."

Casey laughed. "Yeah, I really don't blame you for not liking them much. They're a real bunch of freaks."

Leo raised a brow, making Casey shake his hands. "N-no I didn't mean you!" He stuttered. Leo continued to stare at him for a minute before bursting out laughing.

"Jeez Case, I get what you mean." The blue-clad turtle teased. He placed his hands on his hips with a smirk. "You get worked up too easily." He suddenly shivered and lost his smirk. "But jeez it's so cold in here."

Casey frowned. "I guess it can get kinda cold in here, but it's not as bad as it usually is."

Leo scoffed. "That's cause I'm a reptile. Y'know cold-blooded?"

"Oh right." The human teen said, rubbing the back of his head in embarrassment. "Why don't we play a round of hockey to warm up?"

The blue-clad turtle shook his head. "Casey you realize I've never played hockey and have no idea how it works right?"

"So? I can teach you."

Casey could tell Leo still wasn't convinced. "Alright, well how's your balance?"

Leo crossed his arms. "Seriously Case?"

"Hey, it's a justified question." He said with his arms raised slightly. "And your aim?"

Casey sweat dropped at the turtle's glare. If looks could kill...

Leo rolled his eyes. "So can we just get started now or what?" Casey smiled, and went right into explaining the rules to Leo. The blue-clad turtle listened intently, curious as to what this "hockey" sport was all about and why his human friend loved it so much. To his surprise, Casey seemed pretty excited about having him there. Casey merely said Raph had never agreed to playing hockey or even learning about the sport. (To which Leo decided he should have a short talk with his younger brother.)

"So do you want to start a game right out or practice moving around on the ice first?" Casey asked.

Leo shrugged. "I guess I should probably move around on the ice first since I've never been on it before."

Casey nodded and watched his turtle friend slowly move across the ice. Leo appeared hesitant at first with his arms slightly raised out for more balance. To Casey's surprise, it didn't take Leo long before the turtle was moving across the ice with a relatively good form. He had only slipped a couple of times before taking off the wrappings on his feet so they wouldn't trip him. When the turtle started trying to perform tricks, Casey decided to start up the game. He really didn't want his reptilian friend showing off that much.

With a hockey stick in each teenager's right hand, Casey dropped a puck down and hit it towards the opposite goal. Leo immediately caught it and swung his stick to hit it back. The two moved across the ice rapidly and managed to play several tough matched before tiring out. Their score ended up 3-2 with Casey in the lead, much to the turtle's annoyance.

"Alright Kyōjin, one more round."

Casey laughed. "Alright. If you really want to lose that badly."

With a hard smack, Casey hit the puck which went sailing over the turtle's head. "I got it!" Leo yelled attempting to run after it. Unfortunately, he slipped and went crashing over the banister with a yelp.

"Leo!" Casey exclaimed, skating quickly over to where Leo had fallen. Looking down at his friend, Casey had to cover his mouth with his free hand to stifle his laughter. Leo didn't appear to amuse as he scowled up at the human. The poor turtle had flipped onto his back after his fall, crashing between the banister and front row of seats.

"This is not funny Casey." He growled. To his annoyance, Casey continued laughing.

"Oh but it totally is blue! You should see yourself right now!"

Leo crossed his arms and let out a huff, waiting for the black-haired teen to stop laughing. "You realize I'm stuck right?"

Casey wiped away a stray tear. "Yeah whatever you say man. If only I had a camera right now."

The turtle decided not to mention his t-phone was sitting beside his katanas that he had taken off before skating across the ice. "No seriously Case, my shell is wedged between these seats and wall."

"Yeah yeah fine. Just a sec." Casey said as he swung himself over the banister and grabbed Leo's hands. "On the count of three." He readied himself. "One, two, three!" He pulled up with a grunt, making the turtle hiss out in annoyance.

"That didn't work except to almost pull my arms out of their sockets." Leo grumbled, glaring at Casey.

"Well then I'll try something else." Casey said, then moving to attempt to free the turtle again. He once again grabbed Leo's hands and pulled him sideways. "I think it's working."

Leo ground his teeth together as his shell scraped along the banister. He was going to have words with this human later.

With a final tug, Casey fell backwards as Leo became unstuck. He let out another laugh, only quickly shutting his mouth at the sharp glare turned his way. "It worked?" He said nervously.

Trudging back into the lair, Leo quickly looked around to see that no one was there. He gave a soft sigh walking in, noticing his brothers sleeping by each other on the couch. He was surprised to even see Splinter resting nearby. Leo gave a slight shake of his head as he headed towards his room. His feet might've been slightly sore, his shell a bit scraped, and a future runny nose no doubt going to happen, but he wouldn't trade his night for the world.

Don't forget to leave a review if you'd like to suggest something or if you just liked it. And if you really liked it, go ahead and favorite or follow. More should be coming soon. :3