Title: Between Friends

Summary: When Margaret asked Mordecai on a date, Rigby was more than happy to support his best friend. But when Mordecai starts to neglect his friendship with Rigby, Rigby starts to think that maybe Margaret is taking his best friend away from him. What happens when Eileen comes into the picture and tries to take Rigby's problems away? What will happen when Rigby starts to realise that maybe he was getting replaced by Margaret and starts to get jealous? Will this change anything in the end? Or will it blossom some new feelings?

Disclaimer: The Regular Show does not belong to me and it is owned by CN and its respective creators.

Warning: It is a slash between (Mordecai/Margaret) and eventually (Mordecai/Rigby). Warnings are given so if there are any flames, beware as I will use it to burn that person's face!

A/N: So...heyhey...hahaha...-nervous smile- I know I haven't updated my two fan fictions yet but I'm just so busy with school and stuff. Anyways, recently I kept on reading 'The Regular Show' fan fictions and I have stumbled upon Mordecai/Rigby fan fictions and I liked it. So, ideas came into my mind and I was like, eh why not? So...I love the show and I like Mordecai/Margaret but now, I also like Mordecai/Rigby. But, what's the point of writing if nobody likes the story. So, review to let me know if you liked the story and wants to be continued. :3

And this story will be in episodes. ^^ This chapter is short so you guys will decide if you want me to continue or not.

Krystal

Episode 1

It was a sunny day, like always. The city was buzzing with cars and the noises of people filled the sky. Just about in the middle of the small city was the park that everybody adored. The park which was also quickly known as the place where weird things comes and goes. Sometimes threatening the safety of the citizens. However, the park was still loved anyways. If it weren't for the park, their lives were animatedly dull.

Zooming into the park, the noises of people yelling and working could be heard, especially from the workers of the park. The sounds of leaves getting raked was evident enough to know that the fall was coming in earlier than usual this year and the leaves were in beautiful brown, dropping down to the ground.

A huge gust of wind blew again and more leaves floated from the tree and landed on the now not so green grass. "Aw, come on!" A groan emitted from one of the workers as he raked more leaves. "Stop dropping leaves, you big woody tree!"

"Rigby, a tree in fall is supposed to drop leaves. And you're job is to clean those leaves up, not shout at the tree and disturb everyone's peace!" A gumball shaped man came near the groaning worker with a notepad and a pen held tight in his clutches.

"Can't you see it's impossible to rake the leaves, Benson?" The worker groaned again as he slammed his raker to the ground. "And why does Mordecai gets some off time after three and I don't?"

An expiated sigh escaped from Benson as he furrowed his eyebrows and he looked at his whining worker sharply. "Because, Mordecai had managed to finish his chores for once in time and you had left him to play video games...again! Now, quit your whining and finish the job before six or else, you're fired!"

With that said, Benson left the scowling raccoon and climbed onto his white cart before driving off. Rigby muttered to himself before grabbing the raker again and started to finish his job only for him to slam the stick down to the ground again after five minutes. "I can't do this! I need to rest..."

"Having trouble there, buddy?" Rigby immediately turned around to the familiar voice. He grinned widely when he saw his best friend, looking at him with a smirk.

"Mordecai! You're back! Great, now you can help me rake the leaves!"

Mordecai, the Blue Jay, simply chuckled before he shook his head. "No can do, dude. I'm just here to let you know something. I finished my chores, remember?"

"Aww, dude! Not fair! Can't you at least help me rake half of the leaves off?" Rigby tried to worm his way out but Mordecai simply shook his head.

"Sorry, no can do, bro. Just hurry up and finish raking the leaves. I'll meet you inside. I have a huge news to tell you." Rigby stared at his best friend for a while before he sighed in defeat and nodded.

"Alright, I'll meet you in ten minutes."

Mordecai grinned at that and nodded. "I'll prepare some sandwich along the way. Grilled cheese?"

"You betcha'!" The thought alone about grilled cheese had Rigby smiling again as Mordecai walked away, leaving his best friend to tend to his procrastinated work. Rigby tried his best to finish raking the leaves but it was proving to be a hard work when the leaves wouldn't stop falling! However, he had managed to pull it off somehow when he recalled of his grilled cheese waiting for him and the huge news that Mordecai wanted to share with him.

When Rigby entered the house, he was sure he looked beaten up. "Finished already, Rigby?" Benson asked as soon as he saw Rigby walking into the house.

"Yes, Benson. I did." Rigby looked irritatedly at his boss who in turn decided to make sure that Rigby was telling the truth. He walked to the window and stared out to the now less messy park and nodded, ticking off that chore out from his notepad.

"Well, now you can rest."

"Geez, thanks." Rigby walked into the kitchen tiredly. That changed however when he saw his favourite food on the table. He rushed to the kitchen table and grabbed his plate of grilled cheese before taking a bite on one of the slices. "Woah, chill out dude. You're going to choke! And nice accessory in your hair" Mordecai said, taking away a leaf stuck that got stuck in Rigby's hair as he looked at his best friend eating his portion of the food like some wild cat.

"Shut up! You have no idea how much energy it takes to rake some bunch of leaves!" Rigby shouted at the bird with his mouth full. Mordecai simply sighed at his best friend before sitting one one of the chairs with a glass of milk.

In the middle of eating, Rigby slowly started to remember what Mordecai had said to him a few moments ago. He quickly snapped his head and looked at his best friend. "You said you had something to say?" Rigby inquired as Mordecai looked at the raccoon and nodded, suddenly some kind of shyness making way into the taller friend's eyes.

"You know that Benson gave me off time after three because I finished my work early, right?" Mordecai started as Rigby nodded and swallowed his grilled cheese. "Well, the reason was because Margaret texted me saying if I could meet her at the Coffee Shop."

Immediately, Rigby knew where this was heading. It could only result in two scenarios. One could be the rejection part and the other could be the really sappy happy ending stuff. Rigby mentally tried to deduce which one was it before Mordecai spoke again, catching his attention.

"Anyways," Mordecai started to scratch the back of his neck nervously but a small smile was threatening to spill on his way. Somehow, this was more than enough for Rigby to know that this was the happy ending stuff. "When I got there, she made me sit down and she said that she wanted to...try."

"Try? Try what?" Rigby asked as he furrowed his eyebrows at that. Mordecai sighed before he took in a huge breath.

"She wants to go on a date with me. And I agreed to it."

There was the news that Rigby was ready to hear from day one he found out that his best friend was crushing on the waitress in Coffee Shop. Rigby immediately grinned widely at the news, not occurring to himself that this could change their friendship. To Rigby, Mordecai had finally scored a seat in Margaret's heart and Rigby couldn't have been happier for his best friend.

"That's great, man! You finally got her!"

"Yeah, I know, dude! It's so overwhelming that I thought I would've puked."

"Eww, don't ever do that in front of her, man. That wouldn't look good." Rigby chuckled as his best friend rolled his eyes at him. "So, when's the first date?"

"Ah, right. About that," Mordecai slowly said and the nervous look was back full force on his face. Rigby looked at his friend more curiously now. "It's tonight."

"Okay, cool. What time?"

"At...eight."

Rigby's eyes widened as he looked at his best friend in shock. Rigby couldn't believe it! "Dude! We were supposed to watch that new paranormal movie tonight! We were planning to watch it since two weeks, since even before it was released! We even have the tickets after a lot of fuss and mysterious gaping black holes! And you made plans tonight?!" Rigby was fuming and it was clear that the joy was slowly turning into anger.

"I know! I know! I told her that, man but...she said tonight's the only day she's free! She'll be busy soon since her university will start up again! I'm so sorry, bro but...we spend time together all the time and Margaret..."

Rigby sighed as he looked at Mordecai, the look of desperation and regret filled the Blue Jay's face. Rigby sucked in his breath and finally decided to let this pass. It was true. Maybe he can watch the movie next time. "Alright, man. But next time, no more ditching. You ditched me once today already making me to rake all those leaves myself!"

"Hey, you left me to play video games, man."

Rigby immediately nodded and smiled small. "Yeah, touché. But seriously, make plans other time whenever we made plans first, okay?"

Mordecai nodded as he looked at his best friend. "Don't worry, bro. I'll make sure to let her know immediately after tonight. Anyways, speaking of tonight, I better get ready. It's almost seven."

Rigby nodded before he grinned at Mordecai. "Good luck, man. Just don't chicken out when she's about to kiss you!"

Mordecai simply rolled his eyes and grinned back. "I won't. She'll be wrapped around my finger by the end of tonight." Mordecai left the kitchen, went to get ready leaving Rigby behind. Somehow, even though it was his best friend, still ditching their bro's time was something that Rigby was offended of. However, he didn't ponder on the thought so much though. Mordecai did promise it was a one time thing and he wouldn't do it again. They'll have more bro time soon.

With that, Rigby went to the living room after placing the dish in the sink to watch some television. Maybe even play some games and see if he could beat Mordecai's score.