Natsu slumped himself on one of the guild chairs and placed his head down on the bar table. "Goddamit, I'm so bored."

Mirajane walked up to him and served him a strawberry dragon fruit milkshake. "Then why don't you go on a job?" She giggled. "You're always crazy about those, aren't you?"

"Well, Lucy and Erza went on a "only girl' quest." Natsu grumbled. "And Happy is on a date with Charle. Don't feel like going on a quest myself."

"And how about Gray?"

Natsu gave her a stare. "You expect me to go on a quest with Gray alone?"

Mirajane smiled, "Sure, why not. You two always get together so well."

"Mirajane please." Gray said, taking a seat next to Natsu. "That is some nonsense you're talking about. Me and him, really?"

"Hey, who told you to sit there." Natsu snapped at Gray.

"I get to sit where I want fire boy." Gray sneered. "Mira, as the usual please."

Mirajane smiled. "Yep. Bowl of ice coming right up." She left the two alone.

"And why aren't you on a goddamn job, huh Icicle?" Natsu sneered at him. "Can't I have at least one day where I don't get to see that ugly face of yours?"

"Right back at you." Gray sneered back. "You're usually the one always on a job. Why can't you stay out of my sight just for today."

"That's enough you two." A voice growled behind them. It grabbed each of them by their cheeks. "Always like this while I'm gone on a job."

"Er…Erza." Gray muttered.

"He started it." Natsu whined, pointing at Gray.

"Seriously you guys." Said Lucy, joining the table. "Erza was so excited to tell you about our job. You guys just had to ruin it."

"Hmph." Natsu grumbled. "And so, how did this 'all girl' quest go anyways? What did you get as rewards? Shampoo?"

"You're annoying." Lucy mumbled. She quickly opened her purse and took out a lean bottle of blue liquid. "Ta-daa."

"That's it?" Natsu squinted his eyes. "A bottle of liquid? That?"

"A bottle that'll bring us a fortune." Both Lucy and Erza giggled.

"What's it for?" Gray questioned.

The two girls looked at each other and smiled, "It's a secret. We'll let you know by tomorrow, when we get more information about this bottle."

"Let me try it." Natsu said, grabbing for the bottle. "I want to see what's so magnificent about this bottle."

"Don't be an idiot." Erza said, whacking his head with her bare hands. She took away the bottle from Natsu's hands and sighed, "Don't you dare try tasting this bottle. I warned you Natsu."

"Why? You're making me so curious." Groaned Natsu.

X.X.X.X.X

Late at night, Natsu rolled around his bed. He couldn't sleep at all and he was dying with thirst.

He got up.

"So thirsty." He groaned, walking up to the refrigerator inside his house. There was nothing inside. He should've gone shopping instead of messing with Gray all day."Er..Happy?"

"Hm?" The drowsy cat mumbled. "What is it Natsu?"

"Did you drink all the milk?"

"Aye..Sir…zzzz"

Natsu sighed. Of course, where would all the milk go? He had to find something to drink or he knew he was going to suffocate.

He quickly grabbed his boots and walked out into the starry night sky. 'I'll just get something to drink and come back without anyone noticing.'

When he arrived at his guild, he silently crept open the refrigerator and grabbed for the water bottle.

Aah. It felt nice to feel so refreshed again. Natsu thought, bulking down the bottle.

As he was about to close the refrigerator, something caught Natsu's eyes.

The bottle of blue liquid he saw earlier. If Erza told him to be careful, why would she place it in such a public place?

With curiosity, Natsu opened the cap of the bottle and slowly sniffed it. It smelled like vanilla-mint. He slowly poked his pinky in the liquid and brought it to his tongue.

!

The taste was unbearable. Natsu quickly closed the cap and stuffed it back inside the refrigerator. It smelled nice but tasted weird. What were Erza and Lucy going to do with such a capricious bottle?

He walked back to his house, thinking about how terrible the bottle tasted like.

Oh yes, he didn't forget to add a little surprise on Gray's snack inside the refrigerator.

X.X.X.X.X

"Excuse me miss." Happy said, poking Natsu's face.

"Argh, what is it?" Natsu grumbled. He checked his clock. "It's 6 in the morning."

"What have you done to Natsu?" The blue cat sobbed. "He hasn't been back ever since he left for the guild. Why are you sleeping in his clothes? Very suspicious."

"What are you talking about? Are you-" Then he stopped talking. Something was definitely weird. His voice, it didn't sound like him at all. More like… higher pitched. Why did he sound like a girl?

He quickly touched his body. Instead of a bulky volume, he could feel big lumps on his chest. His hair seemed definitely longer and….

He quickly rushed to the mirror.

AARGHHHH

Yes, it was all true. He wasn't his old self anymore.

"Happy." He cried in despair. "What am I going to do?"

"I asked who are you" Happy sighed, flying around him….or her. "And how do you know my name."

"I'm Natsu." She sobbed.

"Haha very funny." The cat laughed.

"And I've turned into a girl." She added on.

The tiny blue cat opened his jaw wide open. He didn't talk for a few couple of minutes.

"I know. I know." Natsu sighed. "I think it's that liquid that Lucy and Erza brought from yesterday. I didn't know it'd turn me…. into this."

"Maybe you should ask Erza about it. She'll know." The cat suggested. "I mean, she's the one who brought it."

"Are you crazy?" Natsu hissed. "She's going to murder me if she finds out I tasted a bit. She was going to sell that you know."

As the conversation deepened, the front door opened and Gray barged in.

"Natsu. You idiot." He hissed. Did you mix my ice cubes with tobacco sauce? That was my breakfast you know."

"Gray." Natsu exclaimed.

Gray looked stunned. He quickly looked away turning red. "Miss… I don't know who you are but you should at least put some clothes on."

Huh? Oh yeah. Natsu forgot he slept half naked all the time.

"Gray." Happy grinned, flying towards him. "Guess what. Guess what."

"What is it?" Gray said, still bright red.

"Pfft. Natsu turned into a girl."

"He turned into a what?" Gray coughed.

He slowly glanced at Natsu who was wearing his bright red hoodie. He froze for a second.

"That? That chick is Natsu?" Gray finally exclaimed. "That?"

"Natsu drank the potion Erza brought." Happy explained. "Pfft, he can be stupid sometimes."

"Happy." Natsu snapped.

Gray just shook his head. "You are an idiot Natsu. What will Erza say about this?"

"I know. I know. I should've listened to her warning."

"And how are you going to explain about this? Oh you are so dead." Gray added on.

Natsu thought for a second. Then he grinned. "We can keep this a secret."

"Secret? Sure. This is totally going to work. So are you going to stay hidden until you're back to your own self?"

"Nope. I'll just go to the guild regularly. I'll just pretend... I'm your cousin."

"Yeah. Everybody in this world already knows I'm an orphan." Gray muttered. "Think of something else."

"Nah." Natsu argued. "I'll just pretend I'm your long lost cousin."

"And how are you going to do that? Hm? You think that's possible?"

"Yeah, I mean, you two didn't realize who I was until I told you two. If we just stay quiet till the potion wears off, I think there would be no problem."

Gray sighed. "And how are you going to explain about the Natsu Dragneel we know? Got kidnapped by Gollums?

"We can just make it seem like I went on a mission himself for several days." Natsu suggested.

"And how about Happy." Gray argued. "Natsu never leaves on a mission without him."

"Aye sir." Happy agreed.

"God you two are annoying. I'll just settle this on my own. You two just help me out, okay?" Natsu pleaded. "C'mon Gray."

"And why should I help you." Gray smirked at him. "I'll have to think about it after someone ruined my breakfast."

"I'll do whatever you say." Natsu pleaded even more. "Till I turn back to my regular self, I'll listen to all your commands. Just help me out."