Disclaimer: I do not own Twilight or Pokémon.
Warning: Finnceline fluff dead ahead.
After everyone left, Marceline floated up to her room and sat on her bed. She grabbed her axe bass from where it stood propped up against the wall. With a great deal of effort, she attempted to play her guitar, but she couldn't quite balance it on her stomach. Instead, she chose to set it back down and hover on her back staring at the ceiling for a while.
She knew that she should've recognized the signs of her pregnancy, but it was just such a wild idea. Having a baby with Finn was the last thing that she could see herself doing.
She wondered whether or not she was really ready to be a mother. Perhaps her mathematical age was over a thousand, but she still felt like an eighteen year old. How would she manage to raise a child and still hold her place as Queen of the vampires?
She also considered Finn. He would be willing to do anything to help Marceline raise the kid, of course, but he was still just a kid himself. He had his own life to live, his own dreams to follow, his own adventures to embark on. Was it even really fair of her to ask him?
Her thoughts were interrupted by the sound of something scuffling up her ladder. Finn's head popped out of her little entryway. Marceline sat up and set her butt on the bed. "Hey, hero. Did you forget something?"
Finn shook his head as he entered her room. "Nah, I just wanted to come and check on you."
Marceline scoffed. "Please, Finn, I can take care of myself."
Finn smiled and sat next to her on the bed. "I know."
There was a small silence. Finn stared intently at her. "Marceline, can I ask you something?"
She stared back at him. "What?"
He suddenly grinned wider. "All right, so do you think the baby will be a human, or a vampire? Because if it's a human, I might lose my awesome title as 'Finn the Human,' but if it's a vampire, what if it eats through the skin in your stomach and tries to devour everyone!?"
Marceline laughed. "That only happens in crazy stories."
"Yeah, I guess so. Anyway, I'm thinking it'll be a vampire."
Marceline tilted her head. "How can you be so sure?"
"Vampirism is the dominant trait. Besides, when you breed two Pokémon, the baby always takes the species of the mother."
Marceline smirked and raised an eyebrow. "You're basing our baby's traits on a video game?"
Finn smirked back. "If you don't have a better idea, we could always ask Princess what she thinks."
Marceline groaned. "No way, I don't need another four hour long lecture today."
There was another silence. Then, Finn asked, "So…if we're having a baby together, does that mean…you know…"
"If you're going to ask if we're married Finn, the answer's no. Sorry, but that's really not my scene."
"Oh, no, that's cool, I don't want to get married yet either. I just wanted to know if we were…I don't know, together, or something."
Marceline sighed and put a hand on Finn's cheek. "Finn, dude, don't get me wrong. You're probably the most awesome, algebraic, adorably huggable guy I know. But I'm a thousand year old vampire, and you're a thirteen year old human boy. It wouldn't work out."
Finn looked crestfallen. "Does this mean that you'll ask a different guy to be the baby's dad?"
Marceline smiled slightly. "No way, you're definitely not getting out of this."
Finn smiled back, but it quickly changed into a more thoughtful expression. "Marceline, if the baby is a vampire, will it be immortal like you?"
Marceline shrugged. "I would think so."
"Is it fun to live forever?"
Marceline frowned. "Not always. I mean, it is pretty cool, always getting to try new things, having a lot of good times. But that's just it. I may have a lot of good times, but I've had a lot of rough times too. Some things haunt me, and I can never forget them, never put my thoughts to rest. I always get to experience new things, but sometimes I wish that some things would just stay the same. People change, people leave, and people pass on."
Finn looked her solemnly in the eyes. "So, when I pass on, the kid won't have a father anymore."
Marceline felt her eyes get watery. She sniffed and wiped her eyes with the back of her hand, turning away from Finn. He stood up and walked to the other side of the bed, grabbing her hands. "Marcy, maybe not everything has to change."
She looked at him, her jaw quivering slightly. Looking more serious than ever, he said, "Turn me."
Marceline chuckled sadly. "Finn, you know that I can't do that."
Before she could say more, he pulled her closer and pressed his lips to hers. At first, she remained motionless, frozen with surprise. In time, however, she responded to Finn's advances, softly kissing him back. "This is so wrong. I love it."
He pulled back after a moment, lightly biting her lip as he did so. She opened her mouth to comment, but no words came. Finn spoke instead. "Marcy, I really like you. I don't want you to always be sad." He smiled sincerely at her. "We can be a happy vampire family forever."
She sighed. "Finn, you have a whole lifetime of adventures ahead of you. I can't just make you undead."
"Why not? If you made me immortal, I could go on adventures and help anyone who needs it for eternity."
"You might not be so enthusiastic about helping people if you're an evil monster."
"Vampires can't be evil monsters if you're one."
Marceline gave him a small smile. "All right hero, I'll make a deal with you. If you're still serious about being a vampire when you're a little older, I'll consider it."
Finn grinned. "You can bet your sweat pants that I will."