A/N: First story! Woo! Written at 2 A.M., excuse any of my mistakes. Enjoy!

As day turned to night, street lamps flickered on to shroud the streets in a dim light, and doors and windows were heard being shut far and wide. The noise of people talking and socializing with one another died down as the sun set behind the Candy Kingdom.

Peppermint Butler made his rounds in the castle, dimming the lamps and checking that the main gate was locked. Once satisfied that his nightly doings were done, he went to go to his last job: checking that the princess was safe inside the castle.

He made his way to the laboratory that the said princess spent most of her free time, when not doing royal duties that is. She was a smart princess, and very beautiful at that; caring, and responsible. She loved her candy citizens with pride, and was a great ruler of her kingdom.

The tiny butler knocked on the door to the lab, "Princess?" he called out, pushing the door in slightly.

"Mghrgh..?" was all that was heard from inside. The peppermint went further in, scanning the room.

"Princess Bubblegum?" he called again. "Ah! There you are. Princess you really need to sleep. You have been in here for three days straight."

The princess lifted her head from a lab table, wiping away some drool and wiping her sleepy eyes. "P-pep butt… don't worry about it." PB yawned. "The anti-paralyzing potion is almost…" and with that, she started snoring, her head slowly leaning to her right shoulder and hair falling on her face.

"Dear Princess, I- oh, what's the use." The butler headed for the door, and opened it. "Good night, Princess." He then headed to his sleeping quarters, leaving the princess to her lab.

"Dang, I'm actually getting kind of sick of this movie. Shame," a copy of Heat Signature II hit the carpet. "What am I supposed to do now? Everything's just getting old."

Marceline floated around her little house in frustration. Finn and Jake couldn't hang tonight, they were too invested in testing out all the new video games that came with Beemo's latest software update, and there were only two controllers. She had seen everywhere in Ooo, plus she didn't want to travel out alone anyway; it was more fun to adventure with other people. And Bonnie was too busy in her lab doing some science junk.

"Science isn't all that important." The vampire said with a small smile. "I bet it can wait." She changed into pajamas; she planned to convince the Princess into having a sleepover. You know, like those really cheesy ones that little girls have where they stay up all night and watch movies?

After the whole thing where PB had helped get Hambo back, they had started to hang out more and were on good grounds. Despite being total opposites in a lot of ways, the two girls were starting to get along pretty well, although the Princess still scolded Marceline for some of her "distasteful ways".

The vampire queen was now changed into a comfy tank top and shorts, and she set out on her way to the castle. It was night; she knew the place would be quiet, but guarded. Marceline decided to sneak into the castle by slipping through the Princess's tower window; invisibly of course.

"If I'm going to be invisible already…" the vampire said to herself in thought, "I should totally sneak up on her, and get a kick out of it. I hope she doesn't explode."

She had reached the window, and slipped through it. Once in the Princess's bedroom, she turned visible quickly, about to exclaim 'Bleh!' of some sorts, but there was no princess in sight.

She lifted the sheets on the bed. "Bonnie?" No princess. "Huh. Where could that bum be?" She looked out into the hallway, finally saying, "Ah ha!" and going for the lab doors.

Marceline opened it up, spotting to the oddly positioned sleeping Princess. "Nerd." She said to herself, smirking. She floated over to PB.

"Bonnie?" Marceline said softly, shaking the princess's shoulders, ever so slightly. "Bonnie?"

The Princess stirred slightly. "Marr…" her eyes opening a little, and then closing.

Marceline continued to shake her shoulders, a little more force this time. "Yeah, Bonnie?"

"Marcy… you… why are you here you silly goose, it's like, flipping lunch time… I gotta get food…" The Princess said sleepily, eyes now open half way, looking at Marceline, a tired goofy smile on her face.

Marceline just laughed. "Bons, it's three in the morning, what are you saying?"

PB lazily poked the vampire's nose. "I'm s-saying that yooouuu…" she drew the word out, "…have a nice ass, hehe, yeah… have you ever seen it…"

"Woah, Princess," Marceline was getting a kick out of this; she laughed again, "You've been in the lab too long, missy. Tired and probably slightly high off of all these fumes."

The Princess giggled slightly. "What are you… going on about Marcy…? I'm f-fine…"

"C'mon, let's get your ass to bed," Marceline said, still with a big smile on her face.

"N-no!" Princess Bubblegum raised her sleepy voice just slightly. "I want something first, Marcy… don't go yet…"

The vampire chuckled. "And what's that your highness?" The Princess suddenly and firmly pulled her closer, her face determined on saying something. Marceline didn't know what to do, though she wouldn't admit, she liked the closeness, the scent of the other girl. PB smelled of bubblegum still, even if she was been in the lab for days with all the chemical-like smells.

"Maaarcyyy…" she drew out the name, her breath making the vampire's neck ticklish.

Marceline was interested in what she was going to say; a sleepy princess, around a bunch of lab chemicals, breathing them in for hours. It's gotta be something good.

"I think about you… all day," the Princess took a piece of the vampire's black hair and twirled it in her fingers, still half asleep, with a sleepy tone, yet with a hint of seriousness.

"What?"

A small smile played on PB's lips. "Yeah… like a lot… so much it's too much…" She pulled Marceline closer, so her mouth was right against her ear, both hands buried in the vampire's hair so she wouldn't leave. Marceline's hands were still on the Princess's shoulders.

"…and I have decided that I want..." She trailed off into a giggle.

"Want what, Bonnie?"

"Marcy… hehe," PB tightened the grip on the other girl's hair. "Marcy… bite me,"

"Hm? Wait what-?" Marceline went to move back to look at the princess, but her grip on her hair restrained her from doing so. "You want me to what?" The smile had gone from her face, not in a bad way, but in a curious one.

The Princess nipped Marceline's ear. "Bite me… bite me, Marcy," her voice had gotten needy; she tugged at the other girl's hair. "Please,"

"Why?"

"Because I…" she nipped the vampire again. "I want it, from you…"

Marceline's eyes were big, a pool of questions filling her head, but she quickly dismissed them. "B-bonnie, are you serious? Do you really want me to do that to you? I don't want to hurt you-"

"Shh…" the sleepy princess hushed her. "I really, really want that from you Marcy… I like the pain… I love it,"

Hearing the Princess, the vampire smiled slightly, "Dear Princess, that's quite distasteful of you…" her voice lowering down to a whisper, she asked slyly, "Is that the only thing you want me to do?"