Hey everyone. Let me just say it, I have writer's block. I'm having a hard time trying to come up with the next chapter of Believe in the weird and wild, and I've really been stalling on the next chapter of reverse diamond falls. Well fortunately, this idea came to my head, so lets hope this gets me out of it.

Its no secret that I love Steven Universe, and that most of my fic's involve him being raised or growing up in a different surrounding, crossover or not. Well, I have a lot of ideas in my head, but sadly, I can't give all of them the treatment for my other stories. But I can give them in this form.

As in the title, these will all be an anthology of one-shots and stories of various crossovers with steven universe, mainly steven living with or growing up beside character's from various other media. And this story is not limited to the canon steven(I actually have a plan for a blue swap steven being friends with Raven from Teen Titans(not ttg obviously). And if you guys have an idea, send me them, i'd love to know what you think. And don't worry, each story will be continued , so don't worry about any particular one not be explored more

Well, hope you enjoy the story. Here's the first, Marceline from adventure time taking care of steven.

I own nothing. The song, everything stays, is made by Rebecca Sugar, as is Steven universe. Adventure time belongs to Pendleton Ward.

Bam. Boom.

The explosions didn't cease. They only grew more and more monstrous as the destruction grew. The air around them grew thicker and hotter as many people began to fall victim to the chemical's spreading around them. Many just fell flat, their bodies giving out, being poisoned beyond measure.

Garnet could believe what she was witnessing. An apocalypse was always a possibility, that she knew. Still, the all-seeing leader of the Gem's could've never, not in a million years ever anticipate this kind of outcome. Man, a puzzling but simple species. Rose had always saw the potiential in them, she admired them for their ability to somehow do everything, to do anything they wanted, despite no pre determined task or function. They just did it.

But if she were here now, she would've wished this weren't so, she would soon wish all the humans to be in Pink Diamond's zoo than have humanity fall to this fate.

Bam, crash, boom.

They destruction didn't waver as the cracks in the ground grew and grew. They swallowed men, women, children, and animal alike into the molten remnants of the earth.

This, this was worse than she could ever imagine. Earth, a safe haven for their kind, a sanctuary where she and her friend's were finally free, was all about to end. It was all going to go down and blow up in their face.

But there was still a way to survive. Garnet looked around her. She couldn't let him suffer this fate. He, out of everything in this world, was the one thing that deserved to survive this mayhem. In time, when life restored itself, maybe he could help them. He had to. Garnet knew it with every fiber of her being.

She believed in Steven.

Marceline sat, trying to be content. Mind you, this wasn't something she did often, mostly because floating was essentially like breathing after 1000 years of doing so. But sometimes, in moments like this, she found herself pondering about her long life.

She quietly smirked. It had been a turbulent and eventful life, with angst, pain, and so other third thing that you'd find in a thrilling action novel series. Her mother made her life bearable in the beginning. Sure, she had to spend most of that time indoors due to her father's, heritage, but it was a peaceful life. She never needed friends as long as her mother was around to comfort her, nurture her.

Marceline's face saddens a little at this memory. The mushroom war came. It took a lot away from the world, excluding the giant gapping piece of the earth that was literally thrown off the face. Land, animals, people, things that would never be brought back, things that remained gone, forever.

Then Simon came along. Simon, he was her first friend in the whole world after the mushroom war blew up world and mutated the glob out of everyone , and even more than that, for all those years they stayed together, he was her first taste of what a father should be. Kind, protective, and nurturing. He made her smile when she was down, made her well when she was ill, and always did what he could to keep her safe.

Even with the magic corrupting his mind, he still held on for as long as he could. He battled his constantly increasing insanity just for her. For the time that they spent together, for as short as it was, Marceline knew that it was Simon that made life worth living again.

The period she was with her father, that, for lack of better words, could've been better. The truth was, she didn't know how to feel. Sure, it was actually great to finally be around the man that created her, but on the other hand, he was far from the caretaker that Simon was. In a way, Marceline could see why he couldn't have been better, ruling a dimension of utter chaos, but could he at least acknowledged her a little more. Was he ashamed of her, being half human, a freak to the normal world, and a utter shame to the supernatural? Was that all she was to him?

Sadly, she never really got the answer to that question, for soon following the fry incident, she left, and went out exploring the world. Fortunately, she was able to find a calling, as a vampire hunter. The world was slowly getting weirder, and it was starting to look like something out of a fantasy novel. For once in her life, being her father's daughter paid off, being the ideal hunter to the shadowy menaces. She could slay and steal their powers, making her more and more awesome.

And it got even better. With Humanity dying out, they needed a protector, a savior to those that threatened them, a Marceline was that protector. She could go out, and never have to fear any scorn or content. She was appreciated, and loved by many. In those moments, Marceline now knew what Simon felt when he protected her. She there, found her purpose. She knew her life was long, expending centuries, even thousand's of years, but when she died, she would die happy and satisfied.

That feeling didn't last long, as her final fight with the vampire king changed everything. She slayed him, destroyed him, but not without a price, her humanity. She defeated all of them, but not without becoming what she fought against, what she protected people from. On that day, she became the Queen:

Marceline, the Vampire Queen, over nobody.

Marceline huffed at those memories as she sat down with her axe gutair in the cave she currently resided in with her axe guitar at hand. She may try to hide any angst she felt like the brooding teenager she appeared to be, but she knew that on that day, she lost that sense of purpose she felt. With an everlasting lifespan, she wasn't really sure if she could regain that feeling again.

She sighs, knowing that being moody and existential was something pointless. She began to pluck the strings of her guitar. The melody of her mother's song flowed to her naturally. She closed her eyes as she effortlessly played it.

Da,dadada,dadadada, dumdadumdadadadum,

shing

Marceline opened her eyes as she heard a distinct sound, and saw a very dim, but very noticeable light, coming in from behind her. The wall she leaned against had one crack in it, and in it, the light seemed to originate from behind it.

dumdadada, dadadada, dumdadadadadum

Marceline wasted no time. Waving her axe over head, it only took two swings to break through the wall. It was thin, and from the looks of it, lead to another part of the cave together. The room was carved through, as if someone spent years shaping it in order to hollow it out, though that was not the weirdest thing there. A lot of the room didn't match with the whole 'cave' theme, it honestly looked like another house, with old withered remains of what appeared to be a kitchen. Mold ran up the refrigerator as dust, vines, and various swords and weapons covered the ground. On top of the door laid a well drawn portrait of a lady with curly pink hair. Marceline couldn't help but stare at it. She looked, motherly, as she thought. "I hope she went in peace." She said to herself. She began to look onward. What she saw next was the most out of place.

It was a giant slab of crystal in the shape of a circle. It glowed bright with white light before dying out a little. Marceline guessed that this was the thing that caused the initial burst of light to begin with, but it seems to be dying out now. She felt the smooth surface of the crystal before turning around and going back to her guitar. She went back to playing the same tune, this time singing along with it.

everything stays, right where you left it...

She stopped herself once she saw the light glowing again. It form a bright cylinder of light before dying out once more. Marceline stared at the ax, and then at the crystal. 'could it be acting on the.."

Ever so curious, Marceline played the rest of her tune, now wanting to she wear this leads. If this leads to a monster summoning, then she'd have something to do for the next hour. If this lead to nothing, well, maybe she could sell the crystal for something. Either way, this was better than brooding.

in little ways, when everything stays..

She had finished her song, and in that moment, her eye's are blinded by the flash. It was nothing like the light from the sun, but being in the shadows for so long made her sensitive to almost any form of bright light. She was knocked unconscious, not sure for how long, as her eye's slowly begun to adjust to the world once again. She feels something akin to a tiny hand, but she feels to disoriented to really do anything about it. She tries wave it off, but that only resulted in her falling on her side. The feeling moves up her arm, and from the force used, it felt like, who, or what it was, it was trying to help her up.

Her vison clears a little more, and when it does, she finds herself staring at a small figure. He looked human, wearing a large reddish-pink shirt over his rather small body. He had a full head of dark brown, almost black hair. He had bright read blushes on his cheeks, and he had a look of concern over the 1000 vampire queen.

"Are you okay?" He asked. "Your skin's pretty pale. Not that its a bad thing, I, I just never seen anyone with such light skin. Well, maybe pearl, but she says its because she's made out of light, which is weird since you can't usually touch light. Is that what you are? Are you made out of light?"

Marceline was never one to find anything cute, but this kid was making it hard for her. His utter obliviousness was a real treat to see. "Heh, no, I'm not. I'm, I'm something else." She said. She didn't know exactly what his stance on vampires were, but she decided for now that it might be best to leave out that detail until she got some answers. "What about you? How'd you get here?"

"Oh, well there were a ton of shaking and fire going on outside. My friend Garnet placed me on the warp pad" he said as he pointed to the crystal circle. "and told me to wait here. I got tired and decided to take a nap. I had this really crazy dream to while I was out. I felt like I was floating in space and I even met Abraham Lincoln, who was ruling Mars for some reason. Then I suddenly found myself here. Not sure why everything looks old though." He gives the room a good look around. "Eh, it's probably Amethyst. She seems to make messes a lot."

"Eh..." Marceline wasn't sure what to make of this story. She was old enough to realize what she heard. Somehow, this kid is from the time of the mushroom war at its beginning. He clearly didn't know what happened, or the severity of it all. And she wasn't sure if she kid just flat out tell the kid. Though before she could say anything else, the kid walked back to the "warp pad' as he called it, and promptly sat on it. "What are you doing?"

"Oh, Garnet said to wait here. So I'm going to wait here until she comes back. She always goes off for a few days, but she always comes back." He said as he sat down, making it clear he intended to follow through on it.

"Well, okay then." She said as she turned around. She wasn't going to do this. She has enough angst in her life, she didn't need some kid around to add more, or worse, give some to him. He would learn the truth eventually. This was not her problem. Sure, this kid was probably in the same situation she was in a few years ago, but why would she care? Why would she care if the kid cried endlessly at night, waiting for the one he loved to come back, knowing full well that she wouldn't? Why, why would she ever want to give the kid the same comfort she had when her mom was around, when Simon was around, the comfort she gave to those humans, why, just why?

"Glob, I must be nuts." She cringed as she floated back to the kid, who had fallen asleep once more. She quietly awed as she carefully picked him up and floated him back to her house. Just this once. She would help the kid this one time, maybe help him get settle in OOO somewhere, but that's it.

She wouldn't get attached

Right?

oh how very wrong you are Marcey, how very wrong indeed.

Next-Loud house.

As Lincoln tries to deal with Lynn during 'space invaders', see how the bright and happy young boy tries to deal with the gloomy Lucy as a roommate.