10: Sunken Island.

Overlord Spider and his sexy crew were once again off sailing. During their trip they got to know the two new girls, Mei and Kel. As it turned out the two were experienced hunters and were skilled at fighting with spears and knives. So as a welcoming gift, and to test them out, Spider had a couple spears forged. The shafts were made of a sturdy, lightweight metal, and the blades were made of the same metal as the Overlord's armour, created by fusing sea prism stone and adamantine, making them extremely high quality. And because they weren't entirely the fusion metal, the girls would still be able to use them if they ever acquired devil fruit powers.

Shakira put the girls to the test as she fought against them. They were fast, strong, and made some fine thrusts, but they weren't on Shakira's level. She blocked and dodged all their attacks, and got in some of her own by whacking them in the head with the flat of her blade.

"Not bad, but there's plenty of room for improvement. How about I train you to really use those things?"

"Okay."

"Sounds good to me."

She trained them long and hard and they gradually improved.

Meanwhile Spider was picking a new course. They were gonna be heading back to Overlord Island, but he was hoping to stop at some new places along the way. Maybe add those to his kingdom as well. As he studied the map he realized there were two islands that he had to have. Sumack Island and Shalulia Island. With the looming deal to let the fishmen move into his territory, on his islands, he knew he'd have to supply them with some islands they'd like. These two were too perfect not to use. Sumack Island was a watery island full of rivers, lakes and beaches, had cliffs on one side and was surrounded by huge jagged rocks that were underwater. The mermaids would be able to move easier there due to all the water, and the rocks formed a natural barrier that could protect them, yet it wouldn't impede them as they'd be able to navigate it with ease. And Shalulia Island was a world famous tourist trap. It had virtually every environment on the planet on it, as well as one of the world's most extravagant amusement parks. Outdone only by the famous Sabaody Park and one or two others. They'd not only be able to visit every environment the world had to offer whenever they wanted, they'd be able to safely go to an amusement park, like the one they'd all been fantasizing about their entire lives.

When he asked the mermaids about it, they stopped sucking him off just long enough to say how much they loved the idea and that it sounded wonderful. Then they resumed the blowjobs and tit fucks.

He charted the course and they headed for Sumack. This time the mermaids would finally be joining him. To celebrate they talked him into having sex with them.

Many assume that because mermaids turn into fish at the waist, sex with them is impossible. This isn't true. There have been many crossbreeds between humans and mermaids over the years. Mermaids and fishmen have always been compatible with humans, be it blood types, genes, or even reproductive organs. Their vaginas were hidden behind their scales and to access them you'd have to move those scales aside. Their vaginas also feel different from human girls, and their fish tails can make any sex feel further different. Sex with thm can still be pleasurable, but whether or not it's preferable is up to the individual. Some men might prefer mermaids over human girls, but certainly not all of them. The first time Spider ever had sex was with May, then Misty, and then Dawn, in a wild foursome. But he soon found the fish tails weren't his preference and Yukari quickly became his favourite.

Loud moans of ecstasy could be heard for almost half an hour. Then Veronica was called in. The mermaids already had all they could take, but Spider still had a raging hard-on. Some time later they all exited his cabin. The mermaids were annoyed and depressed that the three of them combined couldn't satisfy their master, yet the succubus could. Veronica came out with a huge smile on and was internally gloating for the same reasons. Spider was still good to go for hours, but his lust was sufficiently quenched and he had other things to do.

"Land ho! Sumack Island at 2 o'clock!"

"Good. Misty, May, Dawn, I'm gonna need you to go underwater and direct the ship so we don't hit anything. I'm gonna put on my new armour. This island should make a fine test run," said Overlord Spider.

After a few minutes he came out wearing his new suit of armour. He called it the Poseidon suit. Powerful armour that could withstand the force of a Sea King and let him swim at high speeds and fight effectively underwater. It had built in blades, was equipped with a trident, and had a harpoon launcher with several harpoons on its back. To let him breathe underwater, the helmet was equipped with an air-filled breath dial. The design had fins and needle-like spikes, was dark blue to provide camouflage, had small propellers to enable high speed swimming, and it still retained the noticeable appearance of Overlord armour. But it was still untested, so he wasn't about to jump off the ship. The island was overloaded with watery areas so he was much better off saving it for when something going wrong didn't come with a high risk of drowning.

The mermaids guided them safely and they docked at the island. The island had a dock and a couple buildings, but no one lived there at the moment. The place was ripe for the taking.

There was a river near the dock that the mermaids were able to use. While Spider and the mermaids explored the island, the rest of them hung out on the beach. Playing games and working on their full body tans.

The whole island was swampland. There was an abundance of water, trees and bushes, but the ground didn't have many dry areas. This made finding a good spot to test his armour easy. It all seemed to work perfectly, but he still needed to test out how effective the weapons were. And then, as if on cue, some crocodiles started swimming towards him. His harpoons took out two of them, and his trident finished off the third. With the full test run complete, he exited the water and continued on.

As Spider explored the island, he headed to higher ground to get a better lay of the land. Then he saw something he couldn't believe. Blue minions on the island. He could only see a small group of them, but if he followed them, they'd lead him straight to their Hive.

By the time he got to where they were he'd lost track of them. So he told the mermaids to go look for them while he looked for a spot for a portal, so he could summon some minions.

Mere feet before he reached a decent spot for a portal, he found himself under attack. Pirates wearing blue pants, black and white striped shirts, and blue bandanas with symbols printed on them, and were armed with swords, daggers and pistols. With barely a word, they jumped out and attacked him from all sides.

He blocked the sword strikes from the front with his trident and kicked a guy who was coming at him from behind. They got a few strikes in, but it wasn't enough to get through his armour. A knife popped out at his wrist and he stabbed one in the chest. A couple shots were fired, the bullets bounced off his armour, and the Overlord speared the shooter with his trident. Another guy tried cutting his head off, but he caught the sword and then stabbed him in the throat.

Realizing that they were outmatched and getting killed, the remaining pirates turned tail and ran. One of them didn't make it too far as the Overlord hit her in the leg with a harpoon. She went down screaming and could do nothing but lie there, begging not to be killed. The pain was too excruciating for anything more.

"Fools," he muttered as he walked over to her.

"Please... I don't wanna die!" she cried.

"I'll make you a deal. You do what I tell you, give me all the information I want, and I'll let you live."

"Deal!"

"Good."

He broke the harpoon in two and pulled it out. Then he ripped her clothes off and left her in her underwear. He used one piece to bandage her leg, and the rest to tie her up. Then he slung her over his shoulder her her head facing forward and carried her off.

"Do you see those creatures?"

"Yes."

"Where is their hive?"

"Hive?"

"The blue thing they live in."

"Oh. I've seen that somewhere. It's... um... that way."

Her pain and fear made it hard to think and recall details, but somehow she led him to the hive. The Blues followed his orders and he had them take the hive back to the portal.

"Now tell me. How many more of you are there?"

"A couple dozen I think. We were using the island as a secret base, but the rocks around here are a nightmare."

"And where's the base?"

"In a cave near the beach. On that side of the island. The only place we could find where it never floods."

"Good to know."

Then he threw her down onto the portal and sent her to the tower as she cried out for him to stop.

Meanwhile, the girls were all naked and outraged. Near them was an entire pile of men who were either dead or unconscious. The men were all part of the same pirate group that attacked the Overlord.

"I can't believe those bastards! We're trying to get full body tans on what's supposed to be a deserted island, and they show up to peep on us while we're naked. And then they attack us!"

The pirates had all been cut down or beaten into unconsciousness and thrown into a pile. The girls had been caught completely off guard as they were lying nude on the beach, nearly asleep. Had they been normal girls, they would have been completely overwhelmed, easily captured, and would currently be getting raped. There was no doubt about that. The question they had, was how they were going to be raped. Would they be gang raped and have multiple cocks shoved inside them at once? Would one man after another take turns pumping them full of cum? Would the individuals pick out their favourites and claim them as their personal sex slaves? Would it turn into a rape orgy with all that stuff happening? And afterwards would they be locked up and force to endure every form of sexual torment imaginable? The girls kept getting hornier and hornier as they thought about it.

"What are the odds of Master finding a spell that lets him multiply himself so he can gang-bang us?"

"If he doesn't find one soon then we'll just make him one. Because some things are worth not waiting for."

On his way he tried out his armour by going swimming with the mermaids and the Blues. Everything worked as planned without a single problem, despite the earlier pirate attack.

They mostly stayed in the water as they traversed the island. In the water they spotted and drug up a health upgrade, then a minion relic, and then a mana upgrade. He decided he'd get the fishmen to search the island and bring him everything he missed.

After a few minutes they emerged onto the beach and saw the girls.

"Master!"

"Anything happen while I was gone?"

"Those perverts tried to rape us and we kicked their asses."

"Fools. I heard their base was in a cave nearby. Care to help me look for it?"

"Sure."

All the girls were still naked, but only Mei and Kel weren't like that by choice. The other girls forced them to strip down and stay like that until the rest of them got dressed when they decided not to get naked with the rest of them.

Yukari and Veronica flew off in two different directions to check things out and find the cave. Yukari quickly spotted a cave with a pirate at the entrance.

"That must be it."

She flew back and reported her find the Overlord. As they neared the cave a portal opened up and he sent everything through. Then he summoned his minions and continued. They marched to the cave and immediately started cutting down the remaining pirates. Their captain was the only one who wasn't poorly skilled and unprepared for battle. But he was clearly just a small time pirate and no match for the might of the Overlord. After a brief skirmish, the cave, along with the entire island was now his.

They searched the cave and cleared out all the loot. The amount of treasure they had looked to be little more than what would've been needed to pay the wages of that pirate group. The big score was the two devil fruits they had. They were still looking through the books to see what kind they were before deciding whether to eat them or sell them. The Overlord had little doubt that they'd prove useful. They even found a new spell stone. It was the Dark Force spell, which allowed him to take control of things, making them levitate and sending them wherever he wanted.

"I'm pretty sure that was ripped off from Star Wars," said Erza.

"The readers are supposed to figure that stuff out on their own. Just stay quiet and keep showing off your naked body," said Yukari as she shook her tits.

"It's a written fanfiction. They can't see a thing."

"Dammit! I like being stared at and fantasized about."

Then they found the captain's log book. It revealed that they were just one small part of a much larger force called the Aqua Pirates. A group that had their sights set on taking over all the lands that had been conquered by the Overlord.

"Aqua pirates?... Wait... Team Aqua? The One Piece rejects who were in pokemon? What are they doing here?" asked Erza.

"They couldn't get into the mainstream One Piece works, so they started sneaking into fanfictions."

Meanwhile the Overlord was busy making and putting a new sign for the island. He renamed the place Sunken Island, which was not only a better fit for it, but also wasn't that far off from its original name of Sumack Island.

His machines would have to be brought in and plenty of work would have to be done to make the island ready for the fishmen, but with the portals that wouldn't be a problem. So he decided to cast off and head to the next island. But not before he had sex on the beach with his harem of sexy naked chicks. (And I don't mean the drink.)

Author's note: I would've updated my stories sooner, but my computer broke. I also lost a bunch of data, so I'm gonna have a hard time getting back on track.