Warning: Lemon/Incest/Futa

Chapter 1: Luffy and Chopper x Crew

It was during the nine day/900 year training that it happened.

Zoro and the other men- taking Polly and Eugene with them to train, leaving Luffy and Chopper alone with the girls. Nami and Sanji were out hunting.

Suddenly, Robin, Carrot, Muffy, Anne, Vivi, Olympia, Minerva, Vega 40, and Yamato were exhibiting traits of their respective Theo/Zoans. Noticeably, they had red blushes and were panting.

"W-what's going on?," asked Robin.

"Zoans and Theos- which are like upgraded Zoans have a built-in clock where they're in heat. And to avoid going berserk, ones has to release it.," explained Minerva.

"Sounds like what Minks have.," Carrot replied as she felt an ache in her crotch.

"Wait, are you gonna burn?," asked Luffy before seeing his manhood hardened as did Chopper's.

"Luffy! Your thing!," said the reindeer not noticing he was in his Horn Point inadvertently.

"Wait. Is it?," asked Luffy inadvertently in his Nika form.

"This will be good for studies. Have to see how you react to certain stimuli.," said Vega 40 as she eyed on him lustfully much to his confusion.

"Huh? What the heck are you saying?," asked Luffy before she pounced on him.

Chopper saw Yamato undress himself as he said-

"If you're like this. I have to do something. We're like family."

"O-oh. That makes sense.," said Vivi as she undressed.

"Wow, it really does stretch.," said the half-beaver girl as she grabbed Luffy's manhood after removing the pants.

"Hey. That feels weird.," Luffy argued as it snapped back into place.

"Better see if it can adjust to any size!," Vega 40 suggested as she slammed herself into Luffy's manhood while her face reddened.

"You're a perv like your bro!," shouted Luffy before she went for a kiss.

"You didn't seem to be fighting back.," said the cyan-haired girl as she continued to thrust into Luffy.

Luffy then looked at Chopper.

Rather than being a wolf, due to the training, Yamato's hybrid had somehow taken a reptilian yellow dragon look as its tail wrapped around Chopper's waist as he thrusted.

"Is this alright?," asked Chopper as Yamato nodded.

"Yeah, whatever helps my little bro out.," said Yamato as he went for a kiss.

"So what do I get if I win?," asked Luffy.

"Well, a lot of meat.," said Vega 40, using double entendere.

"Don't confused Luffy like that.," Vivi scolded.

Luffy not wanting to be submissive, stretched out his limbs around wrapped them around Vega's waist before going in for a kiss.

"Reaching maximum output!," shouted Vega 40 as she manifested robotic aspects as Yamato glowed.

The cyan-haired girl's eyes fired lasers as Yamato fired a beam of energy from his mouth. Both collapsed as Luffy and Chopper stood up.

The angels in regular sized versions of their Theos were up next as Vivi laid gracefully as she said-

"Chopper. I'd do anything to help out a teammate."

"Luff-bro. This is scandalous...b-but I don't mind doing it with you.," said Anne with a blush as she did a more tomboyish laying. She was in her cherubim form.

"Better test out my stamina with my Gears. You too, Chopper.," said Luffy as he high-fived Chopper as they smiled at each other.

Luffy then entered into a weird form that had a rhino-horn like protrusion from the upper jaw as the nose turned into a crude beak-like face as his body was more stout with golden arms with round protrusions.

"Gear 7.," Luffy declared as he thrust into her.

"I-is love-making?," asked Anne as Vivi sighed with Chopper entering her.

"Yes, Chopper. That's a good boy.," she cooed.

"He's so...strong...," said Anne as she looked into Vivi's eyes and Vivi into hers. They then proceeded to kiss as the two climaxed into them.

Both girls held the others hand as they passed out.

Carrot was in her Sulong form in spite of it being during the day and Robin was in a blue form with multiple arms.

"Luffy. I wanted to show you my appreciation for telling me it was ok for me to live.," said Robin said as she kissed him and inserted herself into him. Carrot immediately forced herself into Chopper as she sloppily kissed him.

"I feel electricity going through me! But it's different. So good!," shouted the Mink as she pounded into him as Chopper breathed heavily.

"Luffy...you're very skilled.," Robin noted before he turned into a wilder form of himself that had no nose and had exposed teeth with his skin darkening. The thrusting got more intense as Chopper transformed into a centaur as he rammed harder into Carrot.

"Gear 8!," yelled Luffy.

"Rider Point!,' shouted Chopper.

Both Robin and Carrot fainted as they saw Olympia and Minerva with something arising from their crotch area. Manhoods over her womanhoods. Minerva looked embarassed while Olympia was confused.

"I retained our Greater Planetarium traits and Minerva's Sage Daimon fruit gave her...the D... We're hermaphrodites but we have more feminine qualities. Both sexual methods are operable." said the purple-curly haired girl.

"It's revolting right?," asked Minerva before Luffy released steam that covered him. After a few moments, it dissipated to reveal a girl version of Luffy with platinum hair ending in snake heads.

"If you feel like that way. Gear 9's ok until you want to do it the other way.," said Luffy as "she" showed her womanhood. Minerva blushed out of pure joy as she and Olympia thrust into him.

Muffy then went to Chopper and said-

"I always had a thing for powerful Zoans."

She then entered into the reindeer and thrust into him.

"Mrs Muffy! Y-you're so hot!," said Chopper.

"I'll reduce the temp...," said the avian Zoan as she dulled the flames.

"It feels weird. Is this sex?," asked Olympia with an innocent look.

"It's usually the other way. You'll experience it soon enough...," said Minerva before Olympia went in for a kiss.

"Ok my turn! Gear 10!," shouted Luffy as he turned into a giant golden mandrill-faced monkey, got out of their grasp and began to thrust into the both of them.

"So this is it? It feels really exhilarating!," Olympia cried.

"This is a little weirder than usual but I don't mind.," she said as Luffy then turned into a much slimmer, pitch black, winged demon form.

"Gear 11!," shouted Luffy as he thrust further as the two girls' eyes rolled back.

"Can I also get more serious?," asked Chopper as his fur turned pink and he started to grow a trunk as his centaur body took on a more humanoid look with four arms.

"Awakening: Ganesha!," Chopper shouted as he pounded into Muffy.

"I haven't had it this good in ages!," shouted Muffy as she kissed Chopper.

"I-I can't go on...," said the reindeer-Ganesha as he panted and passed out as did Muffy.

"Gear 12!," Luffy roared as his features turned back to human but he had blue hair with composed eyes with a third in the middle of his forehead. He generated Haki energy wings and a tail.

He then blitzed as he thrust into Olympia, and Minerva at the same time.

They both cried as they passed out. Luffy then stood up and asked-

"So what do I win?"

Nami came back to see the girls of the crew passed out with Chopper mixed in.

She then sighed as she yelled-

"Wait are you doing?!"

The girls got up as did Chopper.

After a bit of explaining, Nami was sighing in annoyance as she face-palmed.

"So this place makes you more in synch with your Daimons and you went in like animals in heat? Luffy doesn't seem to be tired...You don't seem like you're out of energy. Before Sanji gets here...do it...Mantle...with me.," said Nami

The others nodded as Luffy turned into Haki to be worn over the present party outside of Nami- resulting in a much taller, muscular Luffy around 10 feet tall with waist-length hair, he wore a flowing red open, sleeveless long coat with yellow padding next to the shoulders and around the neck- seemingly made of straw over his toned body, dark red armbands, a pair of baggy blue white puffy cuff pants with a yellow sash tied around his waist in addition to his sandals. A lavender halo floated behind his head.

"You ok with it? Gear 13?," asked Luffy before she went for a kiss and thrust into Luffy.

"Wow, it's tight.," she said as she thrust into him.

He thrust into her as Nami wrapped her arms around Luffy as it became more and more intense. He climaxed as he and Nami passed out- Luffy splitting back into his fusees.

Sanji in the meantime, was fighting off what seemed to be a flying heart with a macho man face.

"What's with this place?! Nami! Why did you leave ahead of me?," asked the blonde allowed as he was in a rather discomforting form for himself.

Meanwhile...

"I'd feel horny if I had any bones. Yohohohohoho.," Brook said in between sparring with Zoro.

Polly sighed as he looked at the sky.

"What happened?," asked Eugene.

"A man's dream of lust.," said the parrot.

"The Next Day"

Nami sighed in annoyance as she say the cluster of eggs that the girls had somehow laid.

"Ok, why did we lay eggs? How did we lay eggs? What kind of weird crap is this?," asked Nami.

"The miracle of love.," said Anne before Nami slapped her.

"I need to study what traits they've inherited.," said Vega 40 with her arms crossed.

"My, my. This is an unexpected development..," said Robin as she chuckled

Olympia and Minerva held Luffy intimately close while Muffy, Carrot and Yamato hugged Chopper between their bosoms.

"Why...why...," asked Chopper.

"That was weird but fun.," said Luffy.

"I think you need to join the other boys and Eugene. But if you're still up...maybe tonight?," asked Carrot as she kissed Chopper's cheek.

"I think I can make it more interesting.," said Robin.

"Later That Evening"

Luffy thrust into Muffy as Olympia thrust into him with Minerva thrusting into her with Anne thrusting Muffy from behind with Yamato thrusting behind Anne. At the same time, Nami thrust into Robin with Vivi thrusting behind Nami with Carrot thrusting into Chopper with him behind Robin with Vega 40 thrusting behind Carrot. Robin had used her powers to generate "manhoods" for the girls to give them an additional experience.

"This is actually pretty good.," said Nami.

Next Chapter: The Mission

Author Notes: This is an in-story canon side event that didn't make it into the main story. Showing the inevitable built-up tension that would happen if you spent 900 years with several beautiful women with the tension being released.

Not all chapters of this side story will be like this as they will explore other aspects of the characters. But expect a lemon from time to time.

It also reveals information that will become later in the main story.