AN: Hey guys! So I had a request come in to do a Harry Potter or Percy Jackson AU! I will be doing both but here's the Percy Jackson one! Ava(18) is the daughter of Athena and Sara(17) is the daughter of Ares. This takes place in camp halfblood, post lightening thief but pre sea of monsters. Enjoy! ❤️

They were complete opposites. She was poised and wise like her mother. And she was brutish and smug like her father. They were polar opposites, yet they fit together perfectly, balancing each other out.

After Zeus' bolt was stolen, and a war of the gods almost broke out, The King of the Gods reversed his rule about God's not being able to see their children.

So now, currently, Sara and Ava, along with many of their siblings and cousins, are on Olympus, visiting their parents.

Most parents don't play favorites, but the gods of Olympus aren't most parents.

Sara Drake, daughter of Ares and Dinah Drake, was The God of War's favorite child. Sara was currently with her father in the training hall. The reason Sara was Ares' favorite was because she's the only one, that's ever been able to best him in battle.

Their swords clash against each other and her siblings cheer Sara on.

She ducks under one of Ares' strikes and hits him in the back of the knee with the butt of her sword, making him topple over.

She twirls her sword around and stands above him, "you're getting sloppy dad, you gettin old on me?" Sara taunts easily.

"Ohhhhhhh," her brothers echo out. Oh, Sara was also the only daughter of Ares'.

She had a sister, Clarisse, but she died a few years ago on a quest to find an entrance to The Labyrinth. Sara had been devastated, but she moved on, knowing that's what her sister would've wanted.

Ares lets out a small laugh, and kicks out his daughters feet from under her, "now now Sara, don't get too cocky my dear," Ares taunts back and her brothers laugh.

Sara huffs and bends her arms back and flips upright and spins around, catching her father off guard, knocking away his sword and putting hers to his neck.

"Yes father," she says with a smug smile on her face.

"Bested by your daughter again brother?" Says a teasing, yet not so much, voice from above them.

Both father and daughter look up towards the voice and see none other than Athena and her daughter Ava.

Sara looks straight to Ava and smiles at her, Ava waves and smiles back.

"I let her win sister," Ares says looking at his sister. Sara turns away from Ava and pushes her father, "you did not! I nested you as always dad."

Ava giggles and Ares shakes his head with a small smile, "Yes you did my child. And I could not be prouder."

Sara smiles a big smile, she lived to make her father proud. And to make Ava happy.

Sara hands her brother Elias her sword and he takes his turn sparring with their father.

Sara walks over to the mother daughter duo and bows her head slightly as a sign of respect, not only because she's a god, but because she's her girlfriends mother, "Athena," she says with a gentle calmness in her voice.

Athena smiles at her daughters girlfriend, "Sara, how are you young one?"

Sara gives Ava a kick peck on the lips for a hello and turns back to the goddess of wisdom, "I'm good, tired from sparring, Happy that I was able to best father again."

Athena laughs softly, "I do love seeing my brother get his ass handed to him, especially by his daughter. Your sister would be very proud Sara."

Sara stands up a little straighter at the mention of Clarisse, but nods and gives Athena a small smile, "thank you."

Ava gives her mom a look for mentioning Clarisse to Sara and links hers and Sara's arms together.

Ava was Athena's favorite child. Although all her children were well versed in battle and all carried her wisdom and sensibility within them, Ava embodies the traits wholeheartedly but also had a passionate and soft personality to those who deserved it.

Prior to walking in on the sparring session between father and daughter, Ava spent the morning with her mother, tending to the owls and having her mother test her. Athena would give Ava a scenario and Ava had to come up with a wise and best course of action.

The mother daughter duo often spent time together. Whenever Ava wasn't with Sara, training, or on a quest, she was with her mother.

Back with the trio, Athena gave Sara an apologetic look, "I am sorry, I did not mean to upset you Sara."

Sara shook her head softly and smiled, "it's okay, it was a long time ago, I shouldn't be getting upset over this anymore."

Athena stepped closer to Sara and put both hands on her shoulders, "she was your sister Sara, there's no time limit on how long you can grieve her loss. Ava told me how hard it was when you lost your mother, and then to lose your only sister two months later," Athen shakes her head slowly and Sara looks down sadly, "you've had to endure great loss Sara, it's okay to still get upset. I'd be worried if you didn't."

"Thank you my lady," Sara looks up once more, with tears in her eyes and gratuitous smile on her face.

Athen just smiles and places a kiss to Sara's head. She does the same to her daughter, "now I would love to spend time with you girls but I have an important meeting with Zeus within the hour. So you girls head back down to camp and I'll see you tomorrow okay?"

"Yes mother," Ava says and hugs her mother gently, "I love you."

"I love you too my dear, tell Anabeth I wish to see her as well. She has not come to see me in quite some time." Ava just nods and lets Sara say her goodbyes to her mother.

Athen pulls Sara into a soft hug, "I hope you know that since the moment you and Ava got together I always thought of you as a daughter."

Sara smiles and lets out a small sob, "thank you, it's an honor to be thought of as such. And thank you for taking the role as my mother, I love you."

"I love you too dear young one." Athena smiles at both girls and goes on her way.

Ava smiles and links their arms again, "you Alright?"

Sara nods and places a kiss on her cheek, "I'm fine, just missing them both. But I'm honored that your mom feels the way she does and I'm so happy that I have you by my side."

Ava blushes and they make their way back down to camp.

When they get back the majority of the half bloods are still on Olympus. "Wanna head to my cabin since all the boys are still with my father?"

"Sure babe," Ava says and they walk towards the Ares cabin.

Walking towards the cabin the couple runs into Anabeth and Percy. "Hey Sar, hey Ava," Percy says and hugs them both. Anabeth does the same and smiles at her sister.

"Hey guys. Oh Beth, mom said she'd like to see you, you haven't gone to see her in awhile, she misses you."

Anabeth nods, "yeah I've been meaning to go but I just honestly haven't gotten a chance."

Ava nods but doesn't quite believe her younger sister, "Okay, well we'll see you later, make sure you go see mom Beth."

The two walk away and finally make it to the Ares cabin. Since Sara was the only daughter in cabin, there was an entire part sectioned off to give her privacy, even though Sara didn't mind and loved to mess with and hang out her brothers.

The two walk into her side of the cabin and she pulls back the wooden sliding door that separates the rest of the cabin.

She turns around to see Ava laying on her bed, motioning her to come over.

Sara smirks and walks over to her. Crawls onto her bed and over Ava. She then sits down so now she's straddling her. Sara bites her lip and moves her hands under Ava's shirt.

Ava let's out a gaps and arches up into her touch. "I've missed you," Sara whispers and moves her hands up higher so she's cupping Ava's breast's and she leans down and captures her lips.

Ava moans into the kiss when Sara squeezes her breasts and the fabric of her bra rubs against her nipples. "More," she breaths out, "please."

Sara smirks, "since you asked so nicely." She sits back up and pulls Ava with her. She goes to pull Ava's shirt off but all of a sudden the ground shakes.

They both groan and get up, "you've got to me kidding me. What now?"

Sara looks out the window and sees the barrier shaking. "We got barrier action!" She yells at Ava and she grabs her sword and runs out of the cabin, Ava not far behind with her own sword.

All the halfbloods still at camp meet up and watch the barrier.

"It's chill. The barrier's holding!" Grover calls out.

But then, they unexplainable happens, 3 Cerberus', three headed dogs, and 2 nemean lions, burst through the ground.

They hear a splash and the sea monster Scylla and half a dozen sirens emerge from the water.

"Percy, Ava! Take the Athena, Hermes, Aphrodite, and Apollo kids and fight Scylla and the sirens! Everyone else you're with me!"

Percy nods and starts moving but Ava hesitates, "Ava go! I'll be okay!" She nods and follows Percy.

Sara watches Ava for a second before she runs off to fight one of the Cerberus' with Anabeth and Grover.

Sara's twin brothers, Elias and Eric, are fighting off another Cerberus, the Hephaestus children the last one, and the rest of her brothers and the Demeter kids each fighting a lion.

With a swipe of its paw, the Cerberus Sara was fighting swiped at Anabeth and Grover, knocking them both out, "Anabeth! Grover!"

Sara slices the beasts leg and it howls out in pain, she takes her shot and jabs her sword through its heart, but not before one of its heads manages to bite down on her shoulder,

"AHHHHHH!" She screams out in agony and falls to the ground.

Meanwhile Percy, half of the Apollo kids, and the Hermes kids were taking care of Scylla, Percy using his powers, Apollo's kids using their bow and arrows, and the Hermes kids using their flying shoes and swords to attack from above.

Ava, her siblings, and the Aphrodite and the other half of the Apollo kids dealt with the sirens.

The sirens were easy enough to take down, if you kept your focus and tuned out their captivating song. Ava struck down the siren in front of her and she looks over to see a siren going to stab her youngest sister in the back.

"Irina!" She yells and the siren turns towards her, they strike each other at the same time.

Ava's blade going through the sirens stomach, and the sirens going through Ava's shoulder. The siren screams and falls to the ground, Ava grunts in pain but pulls the sword from her shoulder.

Percy and the others manage to chase Scylla away back to where she came from.

Thankfully no one on their side of camp died, Ava's being the worst injury.

They don't hear any more fighting, meaning that the others defeated the Cerberus' and the lions.

Ava wraps her good arm around Irina and they start walking over to the others.

"Sara!" They hear the Ares twins scream.

Ava pales and runs towards the scream, ignoring the pain in her shoulder.

"Oh my god," she breathes as she sees Sara's nearly unconscious form laying next to a dead Cerberus.

A huge nasty bite spanning from the top of her shoulder down across the top of her left breast and end above her elbow.

The Cerberus thankfully didn't bite completely through her, but she definitely had many broken bones.

"Sara!" Ava cries out and rushes to her side. She takes Sara's right hand in her own and puts her other hand on her cheek, "talk to me babe."

Sara opens her eyes and looks at a blurry Ava, "A-Aves?" She whispers and slowly moves her good arm and put her hand over the one Ava has on her face.

"I'm here, I'm here. You're gonna be okay, I promise." Ava cries, tears running down her face.

Unexpectedly, Ares, Athena, and Apollo appear before the group of halfbloods. Under normal circumstances they would all bow their hands, but these weren't normal circumstances.

The three gods rush to the two blondes and kneel beside them.

"Oh my child," Ares says softly, he looks up and sees the dead Cerberus next to her, "you went down fighting, i am so proud of you." He says and looks around to see two more of them, and the lions and the sirens.

"This was an invasion, and I intend to find out who ordered it." Ares growls out and turns to Apollo, "can you heal her?"

He nods and moves closer to her, "I will do my best."

Athen goes around and wraps her arms around Ava. She feels a wetness on her hand and looks and sees her hand covered in Ava's blood.

"Ava you're hurt!" She says with a worried look.

"I'm fine mother, it's Sara I'm worried about," Ava says in a shaky voice. Athena just nods and holds her daughter.

Apollo closes his eyes and starts mumbling in Ancient Greek, his hands glow as bright as the sun, and Sara's wounds start to heal before their very eyes.

A few moments later Apollo opens his eyes, "I've done all I can, I healed the worst of it, but her collar bone is still broken and she hasn't to be in a sling for awhile."

Ares puts a hand on his shoulder, "thank you brother." Apollo nods and attends to his children and the rest of the injured.

Sara is more alert and awake as Ava helps her stand up. "Let's get you to the medical tent and get you a sling," She says and helps Sara walk to the tent, their parents following close behind.

Ava sits Sara down on a bed and goes to get her a sling. When she comes back over Sara finally gets a good look at Ava, "you're hurt!" She says and gently pulls Ava down and looks at her shoulder that's still bleeding.

"Babe I'm fine, I promise, I just need to patch this up and I'll probably need a sling like you, I promise I'm okay."

Ares steps up and places a gentle hand on Ava's good shoulder, "Come with me, I'll patch that right up."

Ava stands and hands her mother the sling and bandages for Sara.

Ares takes her to the other side of the tent peels back the ripped part of Ava's shirt. "I heard the other children speaking of your bravery in combat, and your protectiveness over my daughter," He says in a calm soft voice as he cleans and puts bandages on Ava's shoulder, "I wanted to commend you for your skills, and thank you for the love you clearly have and show for my child."

Who knew, that the feared god of war, could be so emotional and gentle? But in this moment he was not Ares the god of war, he was Ares, father of Sara Lance, his beautiful daughter.

"You don't need to thank me, she's worth it. I'd do anything for her," she says softly and winces slightly as he helps her into the sling.

While Ares helps Ava, Athena takes a seat next Sara and rubs her back softly. "May I?" She asks as she holds up damp cloth to wipe the blood off of her arm.

Sara nods and lets Athen help her. The Cerberus ripped her sleeve clean off, which made cleaning her arm easier for Athena.

"You saved my daughter Anabeth, thank you," she says wiping away the blood and bandaging up the remaining cuts.

"She'd do the same, but I'd never let anything happen to her. Besides Ava, she's my best friend," Sara smiles and flinches hard has Athena moves her broken shoulder and arm into the sling.

"You were a true warrior out on the battlefield today Sara, I'm proud to call you my daughter," Sara smiles and hugs Athena gently, "thank you."

They both stand up when Ava and Ares walk over, "well we have to get back to Olympus and figure out who ordered this attack on our beloved children," Athena says.

They four say goodbye to each other and Sara and Ava walk hand in hand back fo the Ares Cabin.

They get stopped numerous times on the way, giving hugs and high fives and fist bumps to their family.

They almost make to the cabin when Sara hears her name being called out.

She turns around only to have Anabeth crash into her. She bites back a wince and hugs her back as best she can with one arm. "I'm okay Beth," she says and hugs her best friend even tighter.

Anabeth pulls back and smacks Sara's uninjured arm, "Don't you dare scare me like that again! You understand me Lance?"

Sara chuckles and nods, "loud and clear Chase."

Anabeth hugs her again when she hears a slight cough.

She turns to look at her older sister. "Hi, remember me? Your big sister? Who also got stabbed by a siren if you were wondering."

Anabeth laughs and hugs her sister just as tightly as she had Sara, "sorry Aves, I'm happy you're okay."

Ava chuckles and kisses the top of Anabeth a head, "it's okay kid. Go get some rest, I love you."

"Love you too," She says and nudges Sara before she leaves, "love you ya idiot."

Sara shakes her head, "love you too Beth."

Ava takes Sara's hand and they walk into the cabin and the twins run up to their big sister and hug her tightly, "ughhhh all this hugging!" She teases but ruffles both of their hair, she hugs her other brothers, and they all hug Ava as well.

"Listen up," She says in a strong voice, "I'm proud of you, all of you. I'm honored to call you my brothers, and I know Clarisse would be proud of you too."

They all nod at her and she nods back.

Sara turns and leads her girlfriend into her room, and shuts the sliding door. She sighs and leans her head against the wood.

"Hey," She hears Ava's soft voice call out, "come to bed, let's just forget about today and get some sleep."

Sara nods, kicks off her shoes and carefully slides under the covers and next to Ava. The only good thing about them being injured was that Ava injured her right shoulder and Sara her left, so when they laid down next to each other, they were able to intertwine their fingers and hold each other's hands.

They get as comfortable as possible and give each other a goodnight kiss.

They whisper their I love you's, and fall into a peaceful sleep, safe and sound, in each other's embrace.