Crazy trouble with love

Nami and Luffy.

Series: One Piece

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(Fishmen Island)

The island was booming with cheers and celebration. In the middle of the celebration, there was the Strawhat crew celebrating as well in their own ways.

Franky was showing some of the residents his pose with some of them trying to imitate while others laughed at how funny it looked.

Luffy and Usopp were in a eating competition while others were cheering on them to finish as soon as they can.

Zoro was drinking some of the sake they had with other Fishermen who were competing, with some already passed out.

Brooke was doing a concert alongside some of the musicians as many more fishermen cheered on for them and threw many things, including roses and even some panties.

Chopper was being fawned over by the mermaids who couldn't stop cuddling his soft form.

Nearby Robin was speaking with some of the older and more smart looking fishermen about the island's story while glancing discreetly at Chopper.

Sanji was gawking at the mermaid from his hospital bed as Chopper saw him get another bloody nose after they won, and made him stay there cause he had already lost too much.

And their final member, Nami, was exploring the island on her own with a happy look on her face. She wanted to see if there was any leftover treasure the royal guards missed to add to the amount she wanted to ask the king for in return for what they did.

'Oooooh, I can't wait to get all that money~!' She thought to herself as her eyes changed into money symbols.

But as she walked, she tripped on something. "Owww! What the-?!" She stopped herself upon noticing the chest on the ground. "Well hello there!"

Her eyes lit up as she eagerly got on her knees and found the chest with no lock. 'This is easy...too easy thought...' Nami told herself with narrowed eyes for a second before shaking her head and taking the chest. 'What am I thinking?! I deserve this after that whole mess with those fishermen pirates!'

She set it on her lap and opened it. There she saw a strange looking brown-orange colored fruit that looked like a fish's head.

"This looks weird." she reached in and picked it up while looking it over. "Could this be...an Akuma no Mi?" She asked herself curiously.

The idea of this being one made her grin even more. This would fetch quite the price. But then she flinched as her stomach roared, showing that she was hungry as well.

She stared at it and was tempted to take a bite, but knew this was a one way road. She eats it, she would lose the ability to swim, but she would gain some kind of ability. Then she paused as she remembered the abilities that Luffy, Chopper and Robin themselves got by eating their Devil Fruits and how powerful they became by training in them.

"One bite won't hurt." she muttered with a grin. 'Besides, who knows what kind of powers I can get!' She thought as she imagined herself using her powers and getting money in exchange!

She bit into the fruit and chewed it begrudgingly as it wasn't the sweetest she was hoping for. "Ugh...well, it doesn't taste so bad when compared to other stuff." She told herself as she quickly ate the rest of it.

She swallowed it all and saw the chest was otherwise completely empty. "So that's it, huh? Now I just need to wait." She told herself as she tried to think what kind of powers would she get from the fruit.

For a few minutes she waited and didn't feel any different.

"Eh? Weird. Maybe it was a fake" Nami said somewhat disappointed, yet relieved. She stood up and suddenly felt her body tingle.

"W-what the-?!" She muttered to herself as she felt her body beginning to change for some reason. Her skin started becoming a blend of orange and brown and started changing into scales.

"W-What kind of Akuma no Mi is this one?!" Nami asked herself nervous. She held up her hands and saw fins growing in between her fingers.

'W-What am I becoming?!' She screamed mentally as she went to look for a mirror. The closest she found was a small pond and saw her face starting to elongate into some sort of snout.

"Oh no...oh no oh no Oh No OH NO!" She repeated while freaking out. Then she looked at her arms and saw fins jut out her elbows with one coming out from her back.

"When will this STOP!?" She screamed hysterically.

That's when she felt her short shorts split in the back as a long shark's tail sprouted from her tailbone.

"Oh come on!" She screamed now annoyed, hoping that the transformation would end soon. Thankfully she saw her jaw get filled with razor sharp teeth as the transformation finished.

"Finally...it's over." She sighed in relief before looking at her current look. "What am I going to do now?"

At first she started panicking, but it felt like a deep instinct went through her common self part. "W-What is...this feeling?" Nami muttered to herself as she began to sniff around.

She picked up different scents and moved towards where the celebration was held. Yet among those scents...there was one in particular that brought her attention the most.

She kept moving towards the scent as the rest of the strawhats were still celebrating. But on the way, several fishmen and mermaids looked at the transformed Nami with either curiosity, lust (Most fishmen and a few mermaids), envy (The rest of mermaids), and shock.

The strawhats slowly noticed the different Nami as she walked towards Luffy who didn't notice.

Zoro looked surprised before looking at his beer and saying out loud "Should I stop drinking this...?" before he shook his head and drank again.

Franky's sunglasses fell down his nose as he stared at her in shock.

Chopper stared at her with a blush before shaking his head and looking away embarrassed.

Usopp looked terrified as he stopped eating.

Robin looked surprised before glancing amused at the embarrassed Chopper.

Brook had his jaw dropped in disbelief.

Sanji watched her with a mix of disbelief and perverseness before fainting with blood from his nose going out.

Luffy saw Usopp stopped eating and turned his head. Luffy then froze up as he stared at Nami's new form.

Nami gave a large grin while showing off her teeth before lunging at Luffy.

"WHAT THE-?!" Luffy couldn't finish as the now Shark-Tiger Nami threw herself on top of him!

"Luffy!" cried the others as they saw Luffy and Nami roll away from them.

"We gotta help them!" Cried out Chopper in comical panic.

"Wait!" Robin called out getting their attention. "Doesn't that look like...Nami?"

That made the remaining members of the Strawhats, excluding Zoro who was drinking and Sanji who was still knocked out, look at the Shark Tiger woman closely…

"OH MY GOD IT IS!" Usopp exclaimed in shock.

"But how did she become like this?" Brook asked surprised after putting back his jaw onto his face.

"I don't know, but we need to restrain her."

Franky looked at Robin a bit nervous, "Still, she's our Nakama...and I wouldn't want to hurt her too badly."

"Just hold her so I can ensnare her. I won't hurt her." replied Robin.

"Well, if you say so." Muttered Franky with a resigned sigh.

"Get off!" shouted Luffy trying to pry this weird shark lady off him.

"No~!" Chuckled Nami in amusement.

Nami got him pinned, but found herself pulled into a headlock courtesy of Franky. "What are you-?!" Growled Nami as she tried to escape from the cyborg's grasp.

Chopper ran over in his strong point and grabbed her from the front as she started thrashing in their hold.

"Damn...s-she's too strong!" Gasped Chopper nervously.

"Ocho Fleur" Flip." Robin crossed her arms and activated her powers as two arms came up and pushed Nami back, making Franky let go as she landed on the ground and more arms came out before gripping her limbs and body. "There we go." Robin said as she walked with her arms crossed to the captive Nami.

Nami snapped her teeth frantically, trying to get free.

"Don't bother, that's not going to work." Deadpanned Robin.

"Let me go!" she growled struggling against the hands.

"So the rumors were true..." Muttered an amused King Neptune as he saw the scene.

"Eh.? What was that, your majesty?" Chopper asked as he barely heard something from King Neptune.

"Well your friend seems to have eaten the Same Same No Mi."

"The what?" Usopp asked curious.

"I had heard legend that there was such a fruit that could grant the user the powers of a fisherman, but apparently it was true."

"I see, and can she return to her human form?" Robin asked curious.

"Of course, it's as simple as breathing."

That made them sigh with relief as Luffy stared curiously at the new Nami.

"Why'd she attack Luffy?" asked Brooke.

"I don't think she was attacking him." Chopper said nervously.

"Then what was it?" asked Luffy in confusion.

"I think it had something to do with her new instincts." Chopper continued.

"Like what?" Franky asked curious.

"Finding a mate."

That made everyone freeze before Luffy asked in a clueless tone "What's a mate?"

"It's someone you care for and love." spoke Robin.

"Oh, that sounds pretty good to be honest." Luffy said.

"LUFFY!" shouted Sanji running over with his eyes ablaze and stopped in front of the captain. "DID YOU PLAN ON TAKING NAMI-CHAN!?"

"Eh? What do you mean Sanji?" Asked the poor captain confused.

"AAAAHHHH! WHY MUST GOOD THINGS HAPPEN TO YOU!" he cried out.

Then Sanji was hit with enough force to send him crashing into a wall by an annoyed-drunken Zoro.

"Shut the hell up." slurred Zoro.

"Thanks Zoro!" Luffy said as the mentioned just nodded before going for more alcohol.

"How long until she calms down?" Usopp asked seeing Nami just glare at them while catching her breath.

"I say that it would take a while for her to calm down." Chopper said as he checked her body like a doctor would.

"Around how long?" asked Brooke.

"From a few days to maybe some weeks." He answered a bit nervous.

"I say let her go." spoke Luffy with a straight face.

"Why?!" Screamed Ussop in panic.

"Because if that's Nami, that means she's our nakama." he clarified like it was that simple.

"That's something wise that I hear and agree with...but I have no ears! Yohohohohohohohoho! Skull Joke!" Laughed Brooke at the end.

"Luffy, she might go nuts. You sure?" asked Franky.

"Yeah, I'm sure." He said seriously, reminding everyone why he was captain.

Robin sighed and uncrossed her arms as the hands disappeared and Nami grinned before standing up.

"There. She's calm now." Luffy said. That's when she tackled Luffy again.

"Told him so." Sweatdropped Franky at the sight.

Luffy grunted and saw Nami grin at him before nuzzling her head against his. "W-woah. You're real affectionate now, Nami!" Laughed Luffy with smile.

Then she started rubbing his chest while licking his cheek.

"Ha ha ha ha ha! That t-tickles.!" He cried out.

"Uh, it looks like she's tasting him." Usopp muttered to Chopper.

"Is that bad?" The young reindeer asked in a moment of naivety.

"SHE MIGHT EAT HIM!" he exclaimed.

"She wouldn't." Deadpanned Robin. "Even if she tried, we would stop her at once."

Luffy kept laughing as Nami stopped licking and rubbed her snout against his neck.

"So what do we do now?" Brooke asked curious.

"Leave them be. If we try to separate them, she might attack us and see us as a threat." spoke Chopper.

"That's true...so resume the party?" Franky said then.

Chopper nodded.

"Alright then...BONE TO BE WILD!" Cried out Brooke as he sang another song with everyone else cheering.

Luffy cheered while Nami wrapped her arms around his body.

(Later on, Thousand Sunny)

Nami stretched out her limbs on the sunchair. "Nyaaaaaah~!" She meowed in pleasure. "This is puuuurfect~!"

"Be careful, you might fry yourself up." joked Robin as Nami was still in her transformed state.

"Ha ha, very funny." Deadpanned Nami.

"So, how's it feel? Must be new." inquired Robin.

"You get used to it eventually." Admitted Nami as her tail swung around lazily.

"Well do you feel stronger?"

"Well, while I don't feel stronger, I can carry most heavy things without trouble like Franky." She answered.

"That means you've gotten stronger." laughed Robin.

"Yeah!" She cheered.

"So, when can we expect the wedding?" teased Robin.

"What do you mean?" Nami asked.

"Well you did pick Luffy to be your mate."

"Wai-WHAT?!" She blinked in shock. "I-DI-WHAT?! WHEN?!"

"Earlier at the island. You ate the fruit and picked Luffy as your mate. You even cuddled and licked him which was adorable.

That made Nami's face resemble a giant tomato with how red it was.

"So, what was it about him that drew him to you?" 'As if I need to ask.'

"W-Well...I-I..." She tried to say, yet her thoughts were quite the different story. 'You mean besides his compassion, heart, and strength?'

"Don't worry, I understand why." Robin said with a smile.

Nami just sighed as said captain came walking out with some meat.

"Hey girls, how 'ha doin'?" He asked between bites of his food.

"Just relaxing." smiled Robin.

"You know you shouldn't speak with your mouth full, right?" Nami berated Luffy in a serious tone.

Luffy kept chewing before swallowing. "Sorry Nami." He said with a smile, making her blush.

"Just forget it." she sighed before feeling the same tingling sensation again. 'What's happening?' She thought to herself as she felt like the time she had changed...but something was off.

Robin and Luffy watched as her skin started becoming her regular color while the fins, tail, and snout started receding back into her body. "You're returning back to normal!" Both Robin and Luffy said at once, surprised and excited respectively.

"Ah, much better." she sighed in relief rubbing her skin and enjoying the feel of it again.

"We should happy a party to celebrate!" Luffy said happily.

Nami sighed with a smile as their captain ran off to get the others.

"Well, at least some things never change." Chuckled Robin.

"Yeah." nodded Nami.