Platonic Percy Jackson X Reader - Tumblr Posts
hi!! i was wondering if your requests are open and if they are, can i request a pjo platonic headcanon fic where reader is Percy’s younger half sibling(by like 2 years) and the trio found them while on a quest?
Percy with a Younger Sibling | Platonic!Percy Jackson x Reader
I’ve been wanting to write a sibling thing for a while so HEREEEE😜😜 Also i hope this is what you meant by headcanon fic 😣

Its completely by accident when they stumble upon reader while wandering the city’s streets
Trying to make it to the nearest train station, the trio, so occupied with their current quest, failed to see the person running towards them at full speed until they body slam into Percy
The two go slamming into the ground, Percy taking the brunt of the impact while trying to make sense on why this kid quite literally tackled him
But just as he’s about to complain about the pain on his butt, homie is immediately taken aback by bright green eyes staring at him in shock
“I'm so sorry I-!” You try to lift him up from the ground as quick as possible before hearing shouting coming from behind, signaling you that it’s time to dip
So you run off just as quickly as you came, the three teens watching as a random store owner tries following after you only to give up once you turn into a busier street
Annabeth and Grover thought that was the end of that encounter until they notice homeboy Percy not moving from his spot
“Percy let’s go! The train leaves in 10 minutes. It’s better to be early than late.”
“Uh yeah, sure Annabeth. I’ll catch up with you guys, I gotta do something.”
The two watch with shock as Percy runs down and turns the same corner this random kid did just seconds before
Tbh it doesn’t take long for Percy to catch up to the younger kid since he’s taller and naturally fast as a demigod
Seeing you turn into an alley, Percy cautiously follows after you
“Why are you following me? Don’t you know how weird that is??”
Awkward chuckles escape his mouth as he takes in the younger child in front of him
Your look disheveled in every way possible. Sweater half zipped up, you look quite defensive at the sight of him. Much different to how you looked before when you were helping him up the ground
Reader's eyes are hard to ignore. He recognizes them, recognizes that they’re quite similar to his own. Maybe they’re exactly the same color?
Is this how people normally react to his eyes? Damn maybe he did win the pretty eye color lottery
Taking a small step forward, Percy goes to speak until you take a step back
“Don’t come any closer! You’re probably working with those monsters, aren’t you? Well I can defend myself now!”
This dudes eyes are as big as saucers as he watches you, with great difficulty, manipulate water into a thin stream in front of you from a small puddle
It all clicks in his head in an instance
I mean come on, a kid having powers like this? Controlling water at that?
To think he thought he and Tyson were the only children of Poseidon but life loves throwing surprises his way
I like to think that Percy would give reader a full rundown of quite literally everything, about why monster go after them, why they have these unique abilities, Camp Half Blood, the Olympians, EVERYTHING
It doesn't take much convincing on his end to have you tag along on his quest
Reader's been on their own for a while so finally having someone and somewhere to go gives a new sense of purpose in their life
And it doesn't hurt to admit that it feels nice to have someone look after them, someone to care for them. They've been alone for so long
Percy takes you under his wing, teaching and guiding you to the best of his abilities while on the quest
Annabeth and Grover had many MANY questions at first but soon drop it once they see you using your power for the first time
It makes sense why the green-eyed boy seemed so attached to you despite not knowing you for long
I think while Percy trains you to control your powers better, you'll both have an understanding of your familial relations with each other
Its kind of like an unspoken thing that you guys just quietly acknowledge. You put two and two together when you realize he shares the same ability as you..
ANYWAY
Both of you tend to feed into each others chaotic energy! Yall fall into a sibling dynamic after some point, him riling you up with his sarcastic comments and you easily taking the bait
Being younger than him, Percy does his best to not coddle reader! Yes he's protective of you, you're his younger sibling after all! (Thats gonna take some time getting used to for him) But you've survived on your own for quite a bit, so he has faith that you'll be able to handle yourself in the face of danger
Even if that includes you running away from said danger LMAO💀
Percy would TOTALLY tell you all about Sally! During the night while the others sleep, he would quietly tell you the stories about his mom and her obsession with making foods blue when she could, how she would take him to the beach every year for his birthday
He'll even tell you about Tyson and how he's a cyclops. That alone has you sitting up in astonishment because NO WAY
Hearing all the adventures and stories from Percy has you lowkey looking up to him. He's only 2-3 years older than you but he's been through so much and it honestly amazes you how strong he is.
When asked about him, Percy might even tell you a little bit about Poseidon. He tells you its a bit complicated but he'll sate your curiosity for the time being
He won't ask you outright, but he's definitely curious on how you were able to survive for so long by yourself, considering you're a child of one of the Big Three.
Percy is quite protective of Sibling!Reader! He doesn't want anything happening to you but considering your both like alarms on other monsters radar, its hard to accomplish that well
For the time being though, his main goal is to finish this mission and get you all back to camp, safe and in one piece (hopefully)
He promises that he'll protect you from anything that wishes to hurt, and he usually keeps his promises 😜
PLATONIC yandere Percy jackson x mother reader
This is based off the head cannons by Lady-Ashfade @lady-ashfade ( thank you so much for letting me. )
I love Sally I really do and I tried to fit her in but I couldn't fit her in also Percy might be a little Out of character idk how I feel about this
Trigger warnings swearing , Gabe is more abusive like the books that the show , blood

Percy didn't like it when you're attention was on anybody other than him. Percy had never wanted to leave you alone with smelly Gabe and go off to some fancy school so he was relieved when he got home. Actually Percy had straight up refused to go to Yancy Academy because it meant he wouldn't be near you . Also you had gotten a few calls from Yancy saying Percy had sent someone to the hospital because they dared to make a joke about you but did you believe them? No you didn't because in your eyes Percy could do no wrong. Percy stood in front of the door to the apartment but stopped when he heard screaming and the sound of glass shattering and your pained yelp as soon as he heard you're yelp he aggressively opened the door. He saw you clutching your left arm which was bleeding badly and probably had glass in it from the beer bottle Gabe had smashed onto it.
Percy lost it when he saw you in pain . Percy hit Gabe in the back with the closes thing to him which happened to be a pen Riptide although Riptide wouldn't do any good since Gabe is a mortal so Percy just jabbed the pen really hard into Gabes back. “ HURT HER AGAIN AND I'LL SLIT YOUR…..” Percy started but you cut him off. “ Hey I'm ok sweetheart I'm ok.” You said interrupting him. “ I'm ok sweetheart.” Although neither you or Percy were entirely convinced of that. “ Mom you're arm…..” Percy said . “ I'm going to clean up then I have a surprise for you.” You said and walked into the bathroom about twenty minutes later you came out showered and you're arm wrapped. “ I forgot to give these to you.” You said holding out a bag of blue sour strings. “ Thanks mom!” Percy exclaimed. “ Of course sweetheart. That's not the surprise though. We're going to Montauk.” You said. “ Really? Just you and me?” Percy asked excited. “ You were serious about that?” Gabe complained.
“ Yes now give me the dam keys.” You said stretching your hand out. “Never. I'm not handing my keys to my car over to you.” Gabe said. “ Yes. You are.” You replied. “ Give her the fucking keys or I'll do far worse than stick a fucking pen into your back. I'll get a knife and shove it down your …” Percy started. Gabe handed you the keys. Well the trip went wrong quickly. “ Dam it I wish I had more time.” You muttered to yourself. “ Mom what's going ON???! AND WHAT'S THAT THING CHASING US???!” Percy shouted. Cue Grover trying to explain. It shattered the glass of the driver window and jammed its horn into the steering wheel causing it to be hard to do anything really. Well the car got flipped. “ Percy I need you to listen to me. What ever happens stay strong my brave boy. Stay strong and brave. I love you my sweet boy. “ You said gently before taking his jacket. “ Mom what are you doing? Mom you're scaring me.” Percy said. “ I love you my sweet boy. Grover make sure he gets to camp.” You said. “ Wait why do you need my jacket mom?” Percy asked. “ He smells half blood…. That's what he's after maybe I can confuse him.” You said.
“Mom No!” Percy exclaimed . You sighed softly pressing his forehead against yours. “ I love you sweetheart but right now you need to be brave.” You said before the minotaur roared again and you ran the opposite direction buying some time for Percy and Grover. The minotaur grabbed you. “ MOM!” Percy shouted . You felt your world go dark. “ NOOOO!” Percy yelled . He charged sword first. “ COME BACK WITH MY MOM YOU FUCKING COWARD!” Percy shouted he wasn't calling you a coward he was calling the minotaur a coward even though he saw it turn to dust. “ Fuck you dad you're a disappointment you couldn't even save my mother. You don't deserve this .” Percy said bitterly putting a blue sour string into the fire.
He jumped on the quest when he found out you might alive somehow. Honestly Percy and Grover were shocked to see you calmly sipping coffee ( or tea if you prefer it or are allergic to dairy) like nothing had happened with Persephone. Also Hades was chill as fuck. “ MOM!” Percy said literally tackling you off the chair and onto the floor into a hug. You chuckled slightly. “ Hi sweetheart.” You said hugging him back tightly. Percy had his precious mother back and he didn't intend to let you go ever again. Even if that meant he had to tear Mount Olympus apart .
Here's the link to Lady-Ashfade's head cannons
BackBiter
Platonic May castellan x Gender neutral friend reader
Platonic yandere show version Luke castellan x parental figure reader
Platonic yandere camp half blood x Gender neutral reader
Y/n/n= you're nickname
Idk if I like this one...but spent way to much time writing it
TRIGGER WARNINGS swearing, implied kidnapping, accidental injuries, dark themes

The Castellan's had always been close with your family. You and May had been close from a young age. Although May claimed she sometimes saw things..... " I don't know of you should trust someone who claims to be a God sounds delusional and uptight. " You told your friend to which May just rolled her eyes. One day you found May muttering nonsense to herself in the corner of her house. " Hey hey May what's wrong? I'm here. I'm here. " You said gently helping your friend up. " Y/n??! Oh thank the God's it's you! It's really you!" May said squeezing you tightly honestly it was surprising how tightly she was hugging you. " I've got you May. I've got you." You said hugging her back but not as tight. " Y/n?" May asked. " Yeah?" You replied. " I'm pregnant." May stated.... You're mouth dropped.
You moved in with May to help her with the pregnancy and ended up using the couch as a bed since you both agreed to use the spare bedroom as a nursery for the baby although May did argue about it because you shouldn't have to sleep on the couch. You also made sure May was always comfortable and also worked a few extra hours to make sure there was enough to buy stuff for the baby. " Y/n I can't thank you enough for all you've done for me." May said. " Of course you're my best friend. " You replied. " So if it's a girl I was thinking Lily if it's a boy Lucas." May said. " How about just Luke if it's a boy?" You asked. " Luke...." May smiled softly. " I like that. " May said.
" Luke it is then." You replied. " If it's a boy. " May replied. " If it's a boy. " You repeated back.
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" Y/n? Are you awake?" May asked shaking your shoulder. " I am now." You replied sleepily. " Good because I think........ my water just broke. " May said and you sat up alarmed. Somehow the two of you managed to make it to the hospital in one piece. " Excuse me but you'll have to step out of the room." One of the nurses told you. " No wait I want them to stay.....please. " May said. After hours May finally gave birth to Luke. You gently cradled the little baby in your arms as May slept. " Y/n?" May asked a few hours later when she woke up you handed her the sleeping Luke. " My Luke....my perfect boy." May muttered and you smiled softly. " You did amazing May." You said.
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Well so you're plan was just to stay a month or so until May got back on her feet however what was not part of the plan was May going insane. Surprisingly Hermes tried to be a happy family with Luke and May so you moved out for like a year but would often come visit and help in anyway possible well that was until Luke turned 1, Hermes was nowhere to be found and May had now gone insane so you moved back in with May and Luke because you didn't want them to see May as an unfit mother and take Luke away from her knowing Luke was one of the only things keeping May from complete insanity. " My baby....." May muttered as you cradled Luke her arms shaking. " Would you like to hold him?" You asked and she nodded as she stopped shaking enough to hold Luke you gently put him in her outstretched arms.
You sighed softly. " I have to go to work tomorrow are you going to be alright with Luke alone for a few hours?" You asked quiet and gently. May nodded softly.
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A five year old with curly black hair and brown eyes came up to you with tears in his eyes. " Y/n/n my mom is doing it again. " Luke said. You sighed softly knowing what he was talking about May was muttering something about a prophecy again while some of it made sense most of it was nonsense. " Come here sweet boy. " You said opening your arms for him. " I've got you sweet boy I've got you." You said hugging him. " We'll let May rest for a bit she's had a ....... stressful day. I'll take you to the park and get ice cream. " You said that put a smile on Luke's face. Someone a little kid made the mistake of calling you pretty/cute/handsome not in a creepy kinda way but little kids tend to be overly friendly yeah Luke didn't like that so he bashed his ice cream cone into the kids face. " LUKE!" You scolded the five year old and turned to apologize for Luke's actions however Luke didn't like that either as he ended up kicking said kids parents although he was only five so it probably didn't hurt.......that much.
" I'm so sorry . He's a little boy little kids need attention......anyway again I am really sorry about his behavior. " You rambled and the kids parents are just like it's fine we understand.
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One day when you came home you found May sobbing in a corner of the house clutching a picture of her and Luke. " May what's wrong?" You asked gently kneeling in front of her. " Lu....Luke ran aw....aw....away. " May manged to stutter out. " Oh May....." You said hugging her.
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There was a knock on your door to the house as you were getting ready for bed. You no longer lived with May but lived a few houses down it had been a couple years since Luke ran away and you'd constantly go to check on May to make sure she didn't spiral any worse. The knocking noise again but this time it sounded more impatient. " Yeah Yeah I'm coming hold you're fucking horses. " You replied walking towards the door. " Who the fu...." You stared but got cut off when you saw three teens and a 7 year old at your door however one teen caught your eye. " Luke....." You muttered.
" Hi Y/n."... Honestly as mad as you were at Luke you started to bond with his friends and him again.
" Hey Annabeth want me to read a story to you?" You to Annabeth. " Bed time stories are for babies. " Annabeth replied. " It can be anything. " You replied. " Anything?" Annabeth questions. You ended up reading her a few chapters of Frankenstein honestly you don't remember buying it but you found it on your bookshelf so.....( Athena cough cough).
" Hey Y/n can I borrow your keys?" Thalia asked. " Urmmmm how old are you?" You asked. " SHE'S TWELVE!" Grover shouted from the other side of the room. " Ehhh that's old enough in my opinion. " You replied and let her drive on the back roads where almost none drives.
" So you like my little forestry area?" You asked Grover. " Yeah nature's beautiful." Grover said. " Yes it is.....sometimes I think we don't deserve nature." You replied
You placed a plate of sandwiches and cookies infront of Luke as the other three munched away at their own sandwiches and cookies. " You know you really should go visit her she's your mother after all." You said but Luke didn't reply. " Luke?" You asked. " Fine if it'll make you happy. " Luke replied.
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1 week later. " Y/n come with us." Luke said. " I can't Luke." You replied. Luke's expression turned into one of rage. " Why the fuck not?" Luke asked angry. " Luke calm down please..." You stared as he slammed his hands down. " You're the only parental figure I have you can't turn your back on me. I'm your son! I WON'T LET YOU!" Luke exclaimed, angry he still definitely had anger issues. Luke stormed out of the room leaving you, Thalia, Grover and Annabeth stunned slightly.
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You woke up in a bed however it wasn't your bed. " They look so......fragile and weak. " You heard a voice say. " Why would they bring a mere moral to camp with them?" You heard a voice question . " Huh? It has a name." You replied waking up groggy. " Oh great it's awake like we need a mortal to take care of when we already have these half blood brats. Chiron take care of it." The voice said and walked of an older looking gentleman with gray hair and brown skin who ended up being very kind to you. Chiron was honestly started to become platonic obsessed with you when he saw the way you tended to Luke, Grover , Annabeth and some of the younger children.
Chiron smiled to himself. " Maybe just maybe having a mortal here wouldn't be so bad..." Chiron thought to himself. " Why don't you stay a day or two? It's dark and wouldn't be safe for you to travel. " Chiron said. " I really should be getting back home....." You replied. " Please I insist. " Chiron said putting a gentle hand on your shoulder. Well those days turned into weeks and weeks into months until you found out the truth about the children being demigods , Chiron being a centaur and Mr.D being a God. Mr.D pretends to hate you but like Chiron he adores you. Honestly you had become a parental figure to all the halfbloods but while you tended to all the children the two cabins that took up most of your time were the Ares and Hermes cabins. Luke came back with the scar and you fussed over him like a worried parent he definitely liked the parental affection.
One time you decided to decorate Thalia's tree for Christmas Chiron nor surprisingly Mr.D had the heart to tell you no. You got some of the younger campers to help you decorate Thalia's tree as well.
" Clairsse put Chris down!" You shouted looking at the boy being held by his ankle. " But he hurt you......" Clairsse muttered that was true Chris and Luke had gotten into an argument about God's knows what you had stepped betten them and accidentally got stabbed in the arm in the process. That set all the camp off especially Luke as Luke stabbed Chris back in the arm and probably would have continued if you didn't pull Luke off Chris. The other campers watched with jealousy and rage in their eyes as you tended to Chris's injuries like a worried parent because they wanted your attention all for themselves most of the time when your reading to the younger campers the older ones will come in and listen as well. Especially Annabeth.
when Percy eventually arrives a few years later Percy shows up it gets worse because how dare this unclaimed himbo steal you and your attention away.....