A/N A totally sweet ball of fluff. Sweet Pair, served on a platter. Because there aren't any decent pets that start with J. Plus, I need to spoil my wife.

Disclaimer: Let's be reasonable now, shall we?

J for Juvenile Fantasies

It was the week before Christmas, and Marui was sitting in front of his boyfriend's huge fireplace, enjoying a large mug of hot chocolate.

For once, Jirou was not sleeping. Marui watched with amusement as his boyfriend sat on the big chair next to him and wrote frantically on a large piece of paper. His eyebrows were furrowed, and he had the tip of his pen in his mouth.

Turning to Marui, Jirou looked worried.

"What is it?" Marui asked gently.

"Do you think Santa will think I'm greedy if I have so many things on my list?" Jirou, wide-eyed with worry, turned around his paper to show Marui.

"Well, let's see." Marui took the paper from Jirou and started reading. Indeed, there were many wishes on the list.

"For a rich person, you sure want a lot." Marui muttered under his breath as he scanned the list.

"It's all stuff that my parents didn't allow!" Jirou replied with a whine.

"I can see why." Marui sighed. To be frank, he was shocked as well. Some of the things on the list were pretty baffling.

A candy castle, a bed of a billion goose feathers, his own religion, a stalking device, a portable bedroom that could be folded up and put in his pocket…

Marui paused. As he stared down at one particular item on the list, he raised an eyebrow.

"A jellyfish?" He asked questioningly.

"Yup!" Jirou grinned. "I saw one in an aquarium once, and it was sooooooo cool! I wanted to take it home, but my mom just screamed and said no." His face fell.

"And when did this happen?" Marui's lips curved into an amused smile.

"When I was 8." Jirou replied with a tilt of the head.

"And you still have such juvenile fantasies?" Marui laughed. "Jirou, some things are just meant to be forgotten and not pursued after so many years."

"But it looks like so much fun on Spongebob Squarepants!" Jirou argued.

"Have you seen how many times Spongebob's been stung?" Marui said seriously.

"He never died!" Jirou said defensively.

"Jirou, he's a sponge."

"He has feelings too!"

"Jirou."

"What?"

"You don't need a jellyfish."

"But I'd call it Jenny and love it and feed it everyday!"

"What if it's a boy?"

"Jeremy, then."

"Just give up on that one, Jirou. Such juvenile fantasies are the reason why you're still so childish, you know." Marui sighed. Honestly, he was just trying to be sensible. Why were they arguing about Spongebob and jellyfishes?

"But, Marui-kun." Jirou leaned towards his boyfriend. "I've wanted to be your boyfriend for many many years, since I was a small kid. Does that make it a juvenile fantasy as well?" His eyes were wide.

Marui was speechless. He found himself lost in those big innocent eyes, and he couldn't tear himself away. For a few minutes, they sat in silence, looking into each other's eyes.

Breaking off, Marui coughed. His cheeks were red.

"A jellyfish it is, then." He folded the paper and put it in the envelope.

"Hurrah for juvenile fantasies!" Jirou cried out delightedly.