It was late at night, and Natsu and Lucy had just paid to get into a hotel for the night. They had completed their mission in this town – luckily it wasn't fighting monsters, so they actually got the reward this time – and had decided to make the trip back home the following day.
This hotel, however, had bunk beds.
Looking at Lucy in the relative darkness, Natsu pointed upward, "Top bunk."
"Okay, then I'll take bottom bunk," Lucy responded.
Natsu shook his head like she didn't understand. "No, let's both take top bunk."
"Natsu," she started slowly, "I'm not sleeping with you. And anyway, these mattresses are too thin for two people to fit on!"
"Lucyyyy~"
She squinted at him. "It doesn't matter where I sleep, 'cause you always sneak into the bed with me. I have half a mind to say you're a pervert."
He ignored her comment and said, "Come on, these blankets don't look very comfortable anyway, so I can keep you warm."
She blushed. "Natsu..." Pause. "Don't say weird things," she deadpanned.
He pouted, jutting out his lower lip like a child would. "Come on, I'm not gonna do anything weird. Don't be so mistrusting."
"I'm not being mistrusting, I'm just saying I don't want to sleep with you."
Natsu paused. Then: "Fine. I promise I won't sneak into the bed with you tonight."
She stared at him. "You serious?" she asked incredulously.
He smiled. "I'll keep my word!"
Lucy smiled back. "All right then." She crawled into the bottom bunk covers as Natsu climbed the little ladder onto the top bunk.
"Good night, Lucy," he said.
"Good night Natsu."
Lucy slowly became more aware of herself. It was warm, and smelled nice. Cracking open her eyes slightly, still sleepy, she saw she was tangled with Natsu in some kind of cuddling hug thing. She could feel his breath on her head every time he breathed out.
She hated to admit it, but it was comfortable.
But of course, she couldn't stand for this.
Pulling back her arm beneath the covers, she launched her fist right into his stomach. He woke up with a cough, groaning out, "What.. was that for.. Lucy?"
"You promised me, jerk."
"I didn't break my promise though! I said I wouldn't sneak into your bed, and I didn't!"
"Then why-?"
He smirked, "So I sneaked you into my bed!"
Lucy was surprised. She mock-glared at him, "You clever little shet. I'll get you back for that."