Foreword:

I didn't expect to write again this soon, but I had to. I have mid-terms coming up, so I probably won't be back for a little bit. Please keep commenting, though. The Ice King comment inspired me for future chapters. And, keep in mind, I have very little plot so I will probably work every suggestion into the story. On a sidenote to comments, what's with most of the comments being anonymous? I know I allowed it on my account, but still two out of three, really?

Disclaimer:

I do not own Deadpool or Adventure Time with Finn and Jake. If I did there would be a real crossover episode, and it would be epic! And, if I only owned one then I don't know what, maybe a live action Deadpool show on Scy-Fy, or a another version of Adventure Time that was only Fionna and Cake.

"Oh, Marceline, why are you so mean?" Deadpool sang.

"I'm not mean, I'm just a thousand years old, and lost all of my libido," Marceline sang back.

"Oh, Marceline, can't you see that I'm in pain?"

"No, I can't… I'm busy eating this deep fat fried burrito."

"Aw, come on, you're immortal," Deadpool said, not singing anymore, "You don't have to worry about diseases, and you have lots of time to forget."

Melted cheese and shredded beef fell down Marceline's chin, she sucked it back with her fangs, and said, "No means no. Anyway, it's not you, it's me."

"That's what they all say… including the voices in my head," Deadpool said, and shoved a whole chimichanga through his mask.

"Eh, quit your whining. It's not that big of a deal."

"Oh, sure, you can say that because you're a sexy vampire lady. If you wanna get laid you just have to say, 'no bra,' and twenty guys will magically appear."

"But, I'm really not wearing a bra."

A flying bus filled with the University of Ooo's track and field team crashed down in front of them. A couple of guys leaned out of the windows, and they said, "Party! U of Ooo, yahoo!"

Deadpool pulled out an SMG and sprayed them down with lead, none of them died, and Deadpool said, "Deadpool one. Marceline zip."

"That was sorta freaky… I wanna try it again! Um, oh, I got it! My white t-shirt is sooo wet."

A car full of frat boys drove by, and they were taking pictures. Marceline waved at them, and said, "Okay, now it's just getting weird. But it probably doesn't help that we're right by the college."

"I ignore all previous facts and only acknowledge the things are convenient for my case. So I'm right… about whatever I was talking about before," Deadpool said, and he shot the tires off the frat boy car sending it veering into a tree, still no one was dead.

"Why do you keep shooting them?"

"I'll stop shooting them when I manage to actually kill one. Stupid TV-PG rating."

"What?"

"Eh, a TV-PG rating means you can kill stuff, just not with guns or any other easily imitable way."

"Ok, but if we're living by a PG rating then why can you talk about sex?"

"It's either the fanfic writer messing around, or just the way this sex hyped kid show is anyway."

"Alright, you lost me again."

"Forget it. I'm too distracted by the castle made out of candy to explain."

"Man, I didn't even notice we had arrived. This is where Peppermint Butler lives."

"Really? No, seriously. I just thought it was a giant castle made out candy. Reader, this is directed at you, there is no sarcasm here."

"Yeah, and do everyone a favor and don't try to bang the princess."

"You know, when you tell me to do something like that I have to do the opposite."

"Fine, try to bang the princess."

"If you insist," Deadpool said, and he started to run to the castle.

"Hey, get back here!" Marceline said, and she chased after him.

A couple of times Marceline almost caught Deadpool, but he managed to slip away by dislocating joints here and there. She thought she had him when he got trapped against the candy gates, what she didn't take into account was that candy doesn't do to well against plastic explosives. Deadpool ran inside the gates causing the candy people to run and hide. Marceline followed him, but right when she went inside the two giant candy guardians came alive and they said, "Two intruders detected at the front gate!"

"Hey, I'm not the bad guy… this time!" Marceline said as one of the candy guardians tried to grab her. She jumped around the giant hand, and after it had tried to punch her she jumped on it. The candy guardian lifted its massive hand, but Marceline was already running up his arm to his gumball container head. She mumbled to herself about wishing that she hadn't forgotten her bass axe, and then she morphed her right hand into that of her giant bat form and punched the candy giant in his glass jaw. The guardian's head explode like a crystal grenade, and Marceline was not unscathed as her hand sizzled from its brief contact with direct sunlight. After a second of looking around she found Deadpool.

He was holding a rocket launcher, and was charging the guardian that was attacking him. The giant tried to grab Deadpool, but Deadpool jumped into the air. Before Deadpool could start falling back down he shot the rocket launcher under his feet and did a rocket jump. He went high enough to be at the guardian head, shot the guardian with the second rocket in his launcher, and Deadpool said, "Give me back my quarter! I have giant laundry to do!"

Marceline went over to Deadpool as he picked around the giant gumballs, and he said, "Did you have to say 'gumballs?' Do you have any idea how much yaoi there's gonna be with Prince Gumball and me now? You could have said, 'I was picking through the gum,' pure and simple."

"What are you talking about now?" Marceline said.

"Let's just say I took a bullet for your alternate reality."

"Thank you, I guess," Marceline said with her head cocked back to the side.

Then Princess Bubblegum came out, and she said, "What is the meaning of this?"

"Woah, calm down, princess. It was just a little misunderstanding."

"Marceline? What are you doing here?"

"My new friend wanted to visit Peppermint Butler, and then we had some issues with the candy guardians."

"New friend? What new friend?"

Marceline looked around, and she didn't see Deadpool. Then she said, "He was just here! We have to find him. Dude's fun, but he can be a little dangerous."

"How dangerous exactly?"

"Hmm, imagine Jake with a sugar rush and guns."

"… Oh my goodness! We have to find your friend immediately! Where would he have gone?"

"He's either eating something, shooting something, or looking for Peppermint Butler."

"Let's go find Peppermint Butler right away then, that way we have one of your friend's destinations covered."

The two girls ran into the castle, and immediately started looking for Peppermint Butler. They started in the kitchen, and then they systematically started checking every room. They finally found him in one of the tea rooms. To their surprise he was not alone.

"As I recall, mister Deadpool, your costume had more red in the last time we saw each other," Peppermint Butler said, and sipped some tea.

"Ah, yeah, this crazy sexy vampire lady sucked out the color," Deadpool said, and he took a sip of tea through his mask, "Speak of the devil, here she is. Hey, Marceline, I found Peppermint Butler."

"Peppermint Butler, do you know what this man did?" Princess Bubblegum said.

"Knowing mister Deadpool, he probably blew up both of the candy guardians, princess."

"Yes, that's exactly what happened!"

"Actually, I took out one of them, remember?" Marceline said.

"Not now, Marceline. Now-"

"Oh no, you don't! I am not a child! You might think it's okay to talk Finn that way, but not me," Marceline said, and she grabbed Princess Bubblegum's puffy sleeve.

"Do you two mind? Peppermint Butler and I were having a civil conversation over tea here before we were so rudely interrupted," Deadpool said.

"You ladies are more than welcome to join us and politely discuss your issues," Peppermint Butler said.

Marceline and Princess Bubblegum shrugged and sat down with Deadpool and Peppermint Butler. The four of them sat around drinking tea and ate finger sandwiches and cookies. The entire time Deadpool would hit on Princess Bubblegum given half the opportunity. After a while they realized they were having a great time, except Deadpool who was always having a good time.

Afterword:

Did you like it... still? I hope so. Again, please comment. Seriously, I check the traffic constantly and if I see a lot of traffic with only a few comments it will make me unhappier. And, I'm writing Deadpool fanfic, so it's not safe for me to get unhappier. Naw, just kidding, read and have fun.