PJatO || Nicercy || PJatO || Nicercy || The Prince of Pluto || Nicercy || PJatO || Nicercy || PJatO

Title: The Prince of Pluto – A Journey to the Stars

Fandom: Percy Jackson and the Olympians / Heroes of Olympus

Disclaimer: All rights reserved to Rick Riordan for he created the awesomeness that is Nico di Angelo. And everything else related to Percy Jackson and the Olympians / Heroes of Olympus. Aside from the Gods, they belong to the old Greeks. This fanfiction and its OCs on the other hand are entirely mine. No money is made with this, though reviews are more than welcomed.

Warnings: m/m, scifi AU, aliens, alpha/beta/omega dynamics, hurt/comfort, fluff, pining, explicit intercourse, oral, anal, knotting, f/f, m/f, polyamory (m/m/f)

Main Pairing: Nico/Percy

Side Pairings: Reyna/Annabeth, Nyssa/Piper, Octavian/Luke, Ethan/Alabaster, Jake/Will, Frank/Hazel/Leo, Jason/Calypso, Grover/Juniper, Charles/Silena, Chris/Clarisse, Malcolm/Katie, Bryce/Drew, Paul/Sally, Tristan/Beryl, Maria/Marie, Hades/Persephone, Poseidon/Amphitrite, Thanatos/Triton

Percy Jackson Characters: (by planet/asteroid of origin)

Sun: Will Solace, Octavian Simmons, Austin Lake, Kayla Knowles
Mercury: Luke Castellan, Chris Rodriguez, Travis Stoll, Connor Stoll, Cecil Markowitz
Venus: Piper McLean, Silena Beauregard, Michael Kahale, Drew Tanaka, Mitchell, Lacy
Earth: Perseus Jackson, Rachel Elizabeth Dare, Ella, Ethan Nakamura, Tyson, Sally Jackson, Paul Blofis, Tristan McLean, Beryl Grace, Maria di Angelo, Marie Levesque
Moon: Calypso Nightshade, Zoe Nightshade, Phoebe
Mars: Clarisse la Rue, Frank Zhang
Vesta: Charles Beckendorf, Leo Valdez, Jake Mason, Nyssa Barrera
Pallas: Annabeth Chase, Malcolm Pace
Bellona: Reyna Avila Ramírez-Arellano, Hylla Ramírez-Arellano
Ceres: Katie Gardner, Miranda Gardner, Juniper
Jupiter: Jason Grace, Thalia Grace
Saturn: Kronos (King)
Chiron: Chiron, Grover Underwood, Gleeson Hedge
Uranus: Gaia (Queen), the Giants
Neptune: Poseidon (King), Amphitrite (Queen), Triton, Proteus, Kymopoleia, Benthesikyme, Rhode
Orcus: Bryce Lawrence
Pluto: Nico di Angelo, Bianca di Angelo, Hazel Levesque, Mrs. O'Leary, Small Bob, Hades (King), Persephone (Queen), Thanatos, Olethros, Makaria, Melinoe
Eris: Alabaster C. Torrington, Lou Ellen Blackstone

Summary: The moon-landing had changed the course of history when human made first contact. It opened Earth up to space-travel, exploring the solar system and their now allied planets. Chiron Academy is the leading high school training future space explorers.

Percy Jackson grew up dreaming of one day traveling the stars. When he gets into the academy, he makes a lot of new friends, among them his new crush the half-Plutonian Nico.

Things change when Nico confides in his friends that he is actually the prince of Pluto – and that Pluto is in the middle of a horrible war. Together, the group of their close friends, they decide to ditch school, steal a space-ship and go out into space alone and unsupervised to help.

The Prince of Pluto

A Journey to the Stars

Chapter 25: A Wish Upon a Star

They all worked hard for the rest of their school career. It was tough and Chiron made them work harder than anyone else – either as a punishment for the stunt they pulled, or because he genuinely believed they were meant for great things and pushing them into being better.

By the time graduation rolled around, Percy truly felt like a different person. He'd been through so much over the past three years of education at that school. Though, the second and third year were downright boring compared to the first year. Finding a boyfriend, who was the prince of Pluto, finding out he himself was the prince of Neptune, journeying to Neptune and meeting his father, reuniting Nico with his own family. It had been a chaotic whirlwind that in itself felt like it had lasted two years, even though it were just a couple of months.

Triton had stayed a few months on Earth, before returning to Neptune. Proteus was the next to come visit. Until Percy's graduation, his siblings were on a rotation to visit Earth and be a liaison with Neptune. In reality, they just wanted more time with their baby brother. And for Percy's actual graduation day, the entire royal family came to visit, to celebrate him. They stood to him, in public. It had been stressful and annoying during about all of Percy's second year at school, because paparazzi followed him everywhere – he was the scandalous bastard son of King Poseidon, after all. He was gossip. Thankfully, at one point, they moved on to newer gossip.

"Prince Perseus Jackson of Neptune", called Chiron out loudly.

"Hold on, your cap's crooked", Nico stopped him from going on stage, adjusting his cap and then placing one last kiss on Percy's cheek. "There, now you look perfect, kitten."

Puffing his chest out, Percy walked onto the stage to accept his diploma under the thundering applause of the bystanders. In the first row sat the royal families of Neptune and Pluto and with them, Paul, Sally and Percy's still very new baby sister Laura. Percy blushed embarrassed by how loudly Poseidon and Paul were cheering for him. He grabbed his diploma and ducked his head.

"We did it", Annabeth grinned, hip-checking him. "We actually graduated. Together."

"Ye—ep, we did", Percy returned her grin and laid an arm around her shoulders. "So, you're really not gonna join us for celebratory dinner? Dad's treat."

"I appreciate it, but... my dad came, with the whole family. You know I've been working on... getting closer with them. Gotta go out for dinner with them", Annabeth heaved a sigh.

She had never been close to her stepmother and, consequently, her half-brothers. After seeing Percy connect with his estranged biological father, she decided to give her stepmother a chance. They were gradually growing closer and she didn't seem to regret it yet. Percy was really proud of her.

"Good for you. I'll see you tomorrow then?", suggested Percy, smiling a little.

Annabeth nodded in confirmation as the two parted. As soon as Percy reached his family, he was being pulled into a tight hug by his moms. While it had been a rocky start with Amphitrite, because of how awkward their situation was, they had grown very close over the past two years and her and Sally had actually become friends over lengthy video calls and the times the king and queen managed to visit Earth. Once Sally and Amphitrite eased off him, Paul and Poseidon were next.

"We are so proud of you, son", declared Poseidon, laughing brightly.

"Your father has been bragging about today for months now", informed Amphitrite fondly.

Percy flushed and ducked his head a bit. "Thank you. For... For coming. That all of you came here is amazing. I'm so happy to see you guys."

"Poseidon! Are we going to get dinner now? I hope you didn't forget to make reservations."

"Thank you for your confidence, Hades", called Poseidon back with a glare.

Though he did turn to his wife for confirmation. She nodded amused. The royals of Pluto approached them and as soon as he was within reach, Percy grasped his boyfriend's hand. Over two years of going steady. They had some minor hiccups on occasion – mostly stress related, misunderstandings, silly things. But they always knew how to get through them.

/break\

"Nico... love... I..." Percy bit his lower lip, tugging a little on it.

They were in Percy's dorm room. They had graduated yesterday, but were still staying at the school. It was protocol, really. Considering it was summer break right now anyway, the rooms were not needed otherwise, so the freshly graduated students could stay longer.

"You're nervous. Why are you nervous?" Nico frowned confused, grasping Percy's hands. "Is this about assignments? Because... I'm a little nervous about that too, love."

"Kind of", Percy cleared his throat. "You know that... newbies get assigned at random. There's too many new graduates here to get special treatment on who you want to be assigned with..."

Nico winced and turned his face away a little. "I... I believe in us, Perce. Look what we've been through together. We'll get through a long-distance relationship too."

"I believe that too", assured Percy with a small smile. "But... what if we don't have to worry about that? We've been dating for over two years now. I love you. We've also been courting for that long too. Still are courting. I just... what if we... take the next step?"

"Next step?" Nico echoed confused, blinking doe-eyed.

"You don't get to cherry-pick your assignment. We wouldn't either, but... they don't separate mates. They make sure to assign mated pairs to the same ship. And that's not the only reason. I do love you. If the past two years have shown me anything, it's that I want to be with you for the rest of my life, Nico. I don't want to imagine my life without you. Not even in a long-distance way."

"Oh. Uhm. I..." Nico blinked a couple of times, processing. "Yes. Of course yes. I've been thinking about how to ask you for like a whole year at this point now."

"Really?" Percy laughed a little before he leaned in to kiss Nico.

"I just... Yeah. But I'm... Yes. I want to be your mate, Percy. I want to be with you."

He pulled Percy into a slow, deep kiss. They'd been courting for so long now, but it was awkward deciding when to move forward and take the next step. Slowly, Nico tucked Percy's shirt out of the way. He kissed down Percy's neck, to his pulse-point. Percy tensed when Nico bit down. When he let go, it was Percy's turn to lean in and return the favor.

"I promise to cherish you and love you, always", whispered Nico warmly.

"I promise to protect and support you, always", whispered Percy back, kissing the bite-mark.

"Okay, do you... did you ever... think about a mate-mark?", asked Nico curiously.

"I actually had Rachel help me with a design, yeah", Percy grinned sheepishly.

His cheeks flushed as he pulled out a piece of paper. Nico smiled softly as he looked at the design, resting his chin on Percy's shoulder as he took it in, fingers tracing the pattern.

/break\

Luke smirked to himself as he watched the new recruits listening to the captain's speech. He'd worked his way up quickly, he'd been on this ship for a year now and had made first officer. Finally, the captain finished and everyone saluted as they were dismissed. Luke quickly made his way over to the ones he had spotted. He wrapped his arms around Nico and Percy from behind.

"Look who lucked out to be with the love of their lives", chimed Luke teasingly.

"Not lucked out. We made sure we'd stay together", declared Percy with an impish grin.

He turned in a way that bared his neck. Luke raised his eyebrows high. There, on Percy's neck, was a circular bite-mark and within it a tattoo, a black feather crossed with a blue trident. On Nico's neck sat a matching mate-mark. So those two really had tied the knot, huh.

"Ah, I knew it. Gotta call the Stolls, people owe me money now", Luke smirked pleased. "Okay, okay. Let me show you guys the ship and you catch me up on everyone! I was so busy working this past year, I didn't have much time to stay in touch with you guys. Talk to me."

"Annabeth is going into engineering", replied Percy with a grin. "She's moving back to San Francisco, to be closer to her family, applied for a job there. Leo's planning on moving to Vesta. Work at his father's space shop. Grover and Juniper went into research, they applied for a furthering program on Ceres together. I'm gonna miss the hell out of him, honestly. Reyna and Piper are assigned to the same ship, actually, but I don't remember which one."

"I'm glad things are working out for everyone. I remember..." Luke trailed off with a fond smile. "It was a good time, school, you know. And it's weird. Being here, on this ship, compared to... when we snuck away on our little mission. Following the rules here. I gather you'll struggle with that."

"Rude accusations", Percy gasped offended.

"C'mon. Let's get you guys settled in", Luke ruffled both their hair.

/break\

Percy liked thinking back on that first day, how happy and cheerful Luke had been. A few weeks later, Luke left. To go undercover, deep undercover with Kronos' army. He didn't get to see his friend for nearly two years. The worry was what made it so hard. That and the war they fought. A year after Percy and the others had returned from their little unsanctioned rescue mission, Earth and its allied planets had officially joined in the war. The direct attacks on Pluto had breached the treaty. But Saturn and Uranus were a very strong force and the war was still going.

Percy saw things he never wished to see. He lost people. Friends. Comrades he had worked with on this ship, had learned from and with. But a war wasn't like their simulations, it was real. Dangerous. Deadly. Those days, Percy was so relieved that Annabeth worked as an engineer, that Grover was safely researching on Ceres. That he knew his friends were out of harm's way. Not all of them. Many had gone into service, just like Percy and Nico. The days they got vague news about the ships their friends were on were particularly tough, not knowing if they'd been hurt, if they were alright.

Those nights, Percy was especially glad that him and Nico had their mate-bond, that they were on the same ship, that Percy got to curl together in his alpha's arms. That they could comfort each other. It was still straining. Traumatizing. But at least they had each other.

/break\

The war was gruesome, as wars tended to. But they stuck with it, until it ended. Fought on Neptune and Pluto, to defend. Both got medals for their bravery, but the real reward was the peace they knew their families would get to experience now.

"I want to... do something else with my life", admitted Percy one day when he got home.

They were technically on leave, on Earth. Celebrating peace. Going to therapy. Nico and Percy both came back having to deal with PTSD and survivor's guilt. They knew they couldn't do this anymore, but they also didn't quite know what else to do. For now, they were renting a small apartment, near where the Jacksons lived, so they could spend a lot of time with Paul, Sally and Laura.

"You know what that something is, amore?", asked Nico from the kitchen.

Percy smiled faintly as he headed toward his mate, marveling at how handsome his alpha looked behind the hearth, cooking. It was something that Nico had found to ground himself. The routine helped him. Percy reaped the benefit of this new hobby, because Nico's cooking was delicious.

"I always wanted to travel. To see... places. I thought the academy could give me that. I didn't expect the war. I don't know... I can't... not that anymore. But I still want to travel the stars", Percy hopped onto the kitchen counter and leaned his head back to stare at the ceiling. "Space travel is going to boom, now that we can resume it. I figured... I thought..."

"Out with it, love", Nico nudged his husband before returning to his chicken.

"I want us to start our own cruise", stated Percy quickly. "Travel the stars, rent out the cabins to tourists to offer others the opportunity to go and visit other planets. And Neptune and Pluto's economy sure could use the tourism. I know that's something that needs finances, because ships and the necessary licenses aren't cheap. But... you and I come from... rich, royal families. And I'm not asking for gifts here, I thought we could ask them to... become partners. If they think the idea is good. And you could... you could be a cook, the ship would need multiple restaurants after all, you could lead one. I know how much you've been loving cooking. I also thought... the ship, we would live where we'd work. Stable income, stable... living. It would be a good environment to... raise children. Not any time soon. We both gotta get through our issues first and... it'll take a while until the ship would be ready to tour. I just... I've been thinking about this a lot..."

"I can tell. You... really planned this through", Nico raised his eyebrows impressed. "I... I like that idea. I think we should... talk about the details. And pitch it to our parents. But... I like it."

"Yeah?" Percy grinned pleased, accepting a kiss on the cheek.

/break\

Percy was bouncing on the balls of his feet, which still after all these years made Nico's heart speed up. He smiled softly as he watched his husband hold his speech. Their ship, the Princess Andromeda – named after the first ship they had manned together, was finally ready. Fully staffed, sanctioned, ready to take off. Among their first passengers were the Jacksons and the moment the speech was over and the guests boarded the ship, Percy got tackled by his little sister. Laura was seven years now and her big brother was her biggest idol and favorite person.

"I am so looking forward to this! You'll finally show me Neptune, yes?" Laura looked up at him.

He'd told Laura so many things about Neptune, how beautiful it was. He always wanted to show her Neptune, its beauty and the palace. She had met Percy's family before and totally accepted them as her siblings too, but she had never gotten to see their home.

"Yes, I will show you everything. And not just Neptune. We have a stop halfway there on Ceres."

Percy grinned and ruffled Laura's hair. Next, he went to hug hug his mom and stepfather and while he was busy with that, Nico was happy to accept his sister-in-law, lifting her up onto his shoulders. She giggled happily, clinging onto him. They'd really done it.

"Welcome home, kitten", whispered Nico as they stepped on board of their ship.

"Home... Mh. I like that", Percy grinned softly, pleased.

/break\

Space tourism did indeed boom. After the war, the desire to see the stars grew rapidly. And the Princess Andromeda was first in line when it came to journeys to Neptune. They had two pools, a gym, three restaurants, entertainment rooms, cinema and theater. Luxurious, which gained it high praise and high ratings. And Nico was thriving – he ran a restaurant with traditional Plutonian and Italian dishes. They were doing good. So two years into their business, they started trying for children and were over the moon when Percy found out he was pregnant.

"Stop fussing", Percy groaned as he laid down on the bed. "I'm three months along. I don't need to 'rest'. I'm captain of this ship. You are an awful, hovering alpha—Is that panna cotta?"

"Yes. But you don't want my fussing, so I suppose I shouldn't bring you dessert to bed..."

Percy narrowed his eyes at his mate and grabbed the panna cotta. "I don't need you constantly worrying about me, but I definitely do need your home-cooked dishes."

Nico smiled as he sat down next to Percy, resting a gentle hand on Percy's belly. "And you? Do you like papà's home-cooking too, little one?"

"Yes, she does. She definitely does", Percy grinned pleased. "We both do."

Nico's smile softened as he leaned in to kiss Percy's temple. His gaze wandered toward the window. They had a beautiful suite – the biggest, naturally, a whole home. Nico loved it. He couldn't wait to raise his own family here, with his beautiful, strong, mesmerizing omega.

/break\

"It was the 20th of July in the year 1969", started Percy in his best story-teller voice, smiling down at his daughter. "The day that would change the history of our world forever."

Large eyes blinked up at him in rapid excitement. She was sitting on Nico's lap, but her entire focus was on Percy, seeing as Percy was the one holding the story-book and telling tonight's bedtime story. Bianca – named after Nico's older sister's Earthly name; she hadn't gone by that since graduation, since leaving for Pluto again – was through and through Plutonian. Silver eyes and black wings. Meanwhile, her baby brother Hades Poseidon had been born in Neptunian form, with blue fur and black stripes, the same sea-green eyes as Percy. They called the boy Donny though, because while honoring their fathers with the name, Hades Poseidon wasn't a cute baby name.

"Wanna go to the moon", declared Donny suddenly, interrupting story-time.

"Yeah, you do?" Nico smiled at his son, burying his nose in Donny's curls. "We can go."

"No—o!" Donny shook his head violently, making his curls bounce. "Wanna fly me! Alone!"

"Oh, you wanna be an astronaut?", asked Percy, poking Donny's nose.

"Yes! Like daddy and papà!", confirmed Donny, nodding pleased. "I'ma be a space explorer!"

"You are?" Percy laughed to himself. "Oh, you will be a great space explorer."

"We can make some calls. Pull some strings. It's good being close friends to the principal of the academy, I'm sure Luke's going to help us out-", started Nico, sitting straight.

"Babe. Slow down. Donny's four. He's not going to join the academy any time soon. Let's wait a few years before we call Luke about a spot in the academy, okay?", interrupted Percy amused.

"Right... Yeah, you're right, love", Nico ducked his head sheepishly.

"Can we go visit grandma and grandpa on Earth soon?", asked Bianca hopefully.

They had just been to Pluto and Neptune on one of the cruise's regular tours. All of their grandparents adored Bianca and Donny. And so did their aunts and uncles. Between Nico and Percy, the kids had four sets of grandparents and eleven aunts and uncles. Needless to say, birthdays and Christmases had the kids buried underneath a heap of presents.

"We're on our way. And we're going to stay on Earth for a few weeks before we next take off. Does that sound good? Grandma Sally's really looking forward to seeing you guys", Percy smiled.

"Ya—as!", exclaimed Bianca excitedly, clapping her hands. "We can visit Thea!"

"Oh, yes! Thea!" Donny started also clapping his hands at that.

Theobella Anna Chase was the oldest daughter of Reyna and Annabeth and she had quickly befriended both Donny and Bianca. Nico and Percy were both grateful to still, even all these years after graduation, be close to them. They had lost contact to some people, which figured, all things considered, but those they cherished the most, they still called regularly, met up with occasionally. Will and Jake had actually started working on the Princess Andromeda as on-board doctor and mechanic and every time they landed on Ceres, they visited Grover and Juniper. Percy and Nico loved the life they had forged for themselves, loved where life had taken them, together.

~*~ The End ~*~


Author's note: Aaand that's it. That's the end. Thanks for going on this journey with me, even more so if you took the time to leave comments because they fuel me as a writer. This was a lot of fun and I hope you had fun with it too.

Now, as always, when one multichap fic ends, I announce the next. This one will be replaced by a Shadowhunters role reversal Malace fic titled "The High Warlock's Vampires" and it's premiere... actually, in three days, on the 26th, before finding its proper slot in my multichap rotation. ;)