Under the Armour
Summary: It starts with a dagger left in the sand. It ends with Clarisse La Rue looking at you like she doesn’t know whether to threaten you…or trust you.
Pairing: Clarisse La Rue x Reader
Warnings: Brief intimidation, Mentions of bruises and fighting (non-graphic), Emotional vulnerability, Themes of loneliness, Fear of humiliation/exposure
This is a work of fanfiction based on Percy Jackson and the Olympians. I do not own Percy Jackson and the Olympians or any related characters or settings; all original material belongs to their respective creators.
Part 2
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The first time you see Clarisse La Rue lose something, you’re not even sure it counts as “losing.”
It’s just… there. Sitting in the sand near the edge of the arena like it got tired of being sharp and decided to take a break.
A dagger.
Not any dagger, either. Bronze blade, leather-wrapped grip, nicked once near the hilt like it’s been kissed by too many swords. It looks used the way Clarisse looks used—like both of them have been through fights and came out hungrier.
You crouch and pick it up carefully.
The moment your fingers wrap around the handle, you know who it belongs to. There’s a certain vibe to it. Like it’s judging you for holding it wrong. Like it wants to be thrown, not carried.
Like it’s hers.
You glance around the training arena. A couple campers are still sparring in the distance, laughing as they slam shields together. No one’s looking your way. No one’s shouting, “Hey! That’s Clarisse’s!”
Which is… telling.
Most people don’t touch Clarisse’s things. Most people don’t even look at Clarisse’s things for too long.
You turn the dagger over in your hand and consider your options.
Option one: leave it where it is and pretend you never saw it.
Option two: return it and risk Clarisse deciding you stole it and wanting to practice disembowelment on your ribs.
Your brain says option one.
Something in your chest—something stupidly loyal and annoyingly brave—says option two.
So you do the safest version of option two you can think of.
You walk up to the Ares cabin, the one that always looks like it was built to intimidate anyone with functioning fear instincts, and you drop the dagger on the front step like you’re leaving an offering for an angry god.
You don’t knock.
You definitely don’t go inside.
You just set it down, back away, and tell yourself, There. Done. Good deed complete. Survive the day.
{-------------}
The next day, you pass the Ares cabin again.
And the dagger is still there.
At first you think maybe it’s a different dagger. Because surely Clarisse wouldn’t just—leave it.
But no. Same nick near the hilt. Same leather wrap. Same “touch me and I’ll bite you” energy.
It’s sitting exactly where you left it, like the cabin rejected it.
Or like no one dared pick it up.
You stop walking.
Your feet hesitate like they’re trying to remember how fear works. You can almost hear campers in your head:
Don’t. Are you insane? That’s Clarisse’s cabin. She’ll kill you.
And yet… the dagger is still there. Which means Clarisse either didn’t see it, didn’t care, or—more likely—something’s going on.
You sigh, grab the dagger, and go up the steps.
The door is heavy. It groans when you push it open, like it’s warning you this is a mistake. The inside smells like sweat and metal and anger—like the air itself learned how to throw punches.
You step in cautiously.
A couple Ares kids glance at you from across the room and immediately look away like eye contact might start a war. No one stops you. No one says hi.
You keep your head down and head toward the rows of bunks.
Clarisse’s bed is easy to spot. Not because it’s neat—because it isn’t. Not because it’s messy, either. It’s… claimed. Like the space around it knows who it belongs to.
There’s a dent in the pillow, a few scraps of torn fabric near the foot of the bed, and a faint scratch mark on the bedframe like a weapon has been dragged across it more than once.
You approach with the dagger held carefully in both hands.
Your goal is simple: place dagger on bed. Leave. Breathe again.
You step closer— and your foot catches on something.
It’s not enough to fully fall. Just enough to make you stumble and jerk forward.
“Sh—”
You catch yourself on the bedframe, heart slamming into your ribs like it’s trying to escape. You glance down, annoyed and embarrassed.
That’s when you see it.
A flash of red.
Something soft and worn—half-hidden under the bed, like it tried to crawl away.
A sleeve.
A hoodie sleeve.
It’s sticking out from under Clarisse’s bed like a secret that got sloppy.
You freeze.
Because it’s not just any hoodie.
It’s red, faded from a hundred washes. The cuffs are stretched. There’s a tiny tear near the wrist seam. It looks ancient in a way that doesn’t match Clarisse’s usual style of “military-grade intimidation.”
This hoodie doesn’t look like a weapon.
It looks like comfort.
And for some reason, the thought of Clarisse having comfort makes your chest do something weird.
You should leave it alone. You should pretend you didn’t see it. You should complete your mission: dagger on bed, escape.
But your foot is still pressed against the sleeve, and now it’s halfway out on the floor, exposed like you dragged it into the light.
If someone else walks in, sees it, laughs—
Your stomach tightens.
You crouch slowly and hook your fingers under the fabric.
It’s softer than you expect. Worn down to that perfect lived-in softness. Like it’s been held onto in storms.
You pull it out carefully, trying not to make it obvious you touched it, and you fold it once. Neatly. Like you’re handling something fragile.
You stand, hoodie in one hand, dagger in the other, and turn toward Clarisse’s bed.
You’re halfway through setting them down when the cabin door bangs open.
Hard.
Footsteps slam against the floorboards like someone’s making a point.
And you don’t have to look up to know exactly who it is.
Clarisse’s voice slices through the air. “Which one of you idiots—”
She stops.
You look up.
Clarisse La Rue stands in the doorway, broad-shouldered and sunburnt and furious in the way she always is. Her hair is tied back like she’s preparing for battle. There’s dirt on her knuckles. There’s a bruise blooming along her jaw like someone tried to argue with her fists and lost.
Her gaze lands on you.
Then the dagger.
Then the hoodie in your hands.
Her expression changes so fast you almost miss it. Anger, suspicion, and then—
Something sharp. Something panicked.
She moves in three quick strides, closing the distance like a threat.
“What,” she says, low and dangerous, “are you doing.”
The Ares kids across the room go dead quiet.
Your mouth goes dry.
You lift the dagger slightly, like it’s evidence. “I—uh. I found this at training yesterday. It was outside your cabin, so I dropped it off. It was still there today, so I figured…” You swallow. “I figured I should bring it in.”
Clarisse’s eyes flick to the dagger.
Then back to the hoodie.
Her jaw clenches.
“And that?” she snaps.
You glance down at the red hoodie like it might suddenly become a snake. “I tripped,” you say quickly. “It was on the floor. Under your bed. The sleeve was sticking out. I was just—” You lift it a little, showing the neat fold. “I was just folding it so it wouldn’t get stepped on.”
Clarisse stares at you like she’s deciding whether you’re lying.
The air is thick. Heavy. The entire cabin feels like it’s holding its breath.
Finally, her voice drops. “People don’t touch my stuff.”
“I know,” you say, immediately. Then, because you’re apparently determined to die today, you add, “That’s kind of why I’m doing it.”
Her eyes narrow. “Explain.”
You take a breath. You can feel your heartbeat in your fingertips.
“I’m not here to mess with you,” you say. “Or laugh at you. Or whatever everyone else assumes happens when someone finds out you’re… you know. Human.”
Clarisse’s nostrils flare. “I’m not—”
“Everyone’s human,” you say gently. “Even you.”
Silence.
The kind that feels like standing near a cliff edge.
Clarisse’s gaze drags over your face like she’s trying to find the punchline. Like she expects you to smirk. Like she expects you to be scared.
You don’t smirk.
You don’t back up.
You just stand there, holding her dagger and her hoodie like you’re in charge of guarding them with your life.
Something in Clarisse’s expression tightens.
Not anger.
Not exactly.
More like… she doesn’t know what to do with you.
You carefully set the dagger down on her bed. Then you set the hoodie beside it, folded.
You keep your hands visible when you step back. Non-threatening. Respectful.
“There,” you say. “That’s all. I’ll go.”
Clarisse doesn’t move.
Her eyes are locked on the hoodie like it’s a live wire.
Then she looks at you again, and her voice is rougher when she says, “Why aren’t you scared of me?”
The question hits you harder than any insult could’ve.
You blink. “Should I be?”
Clarisse’s mouth twists like she’s offended by the idea you wouldn’t be. “People are.”
“I noticed,” you say.
She scoffs, but it comes out weak. “Smart people are.”
You shrug a little. “Then I guess I’m not smart.”
That earns you the tiniest flicker—almost a smile, gone as fast as it appears.
Clarisse steps closer. Not in the way she does when she’s about to hit someone.
In the way she does when she’s trying to see something up close.
Up close, her eyes are darker than you expect. Not just angry-dark. Thoughtful-dark. Like there’s a whole storm in there that she keeps on a leash.
Her voice drops. “You’re gonna tell anyone you saw it?”
“No,” you say instantly.
Clarisse watches you.
You add, quieter, “It’s not my secret to share.”
Something in her face shifts again. It’s small, but you catch it: the briefest exhale, like she didn’t realize she was holding her breath.
“Good,” she mutters, like it’s a warning. Like she’s still Clarisse La Rue and she still bites.
Then she reaches out and snatches the hoodie off the bed.
She holds it for a second, fingers digging into the fabric, and you see it—just a flash—how much it matters to her.
And that’s when it clicks.
This hoodie isn’t just “soft.”
It’s history.
It’s little-kid Clarisse, too stubborn to cry.
It’s Clarisse with scraped knees and a bruised ego, clinging to something warm because the world wasn’t.
It’s Clarisse, alone, pretending she isn’t.
She tugs it closer to her chest, then immediately realizes you’re looking and stiffens like she caught herself being weak.
Her chin lifts. “It’s old.”
“I can see that,” you say, keeping your tone neutral.
“It’s not—” She stops. Her throat bobs like she swallowed something sharp. “It doesn’t matter.”
You nod slowly. “Okay.”
Clarisse’s eyes flick up again. “You’re not going to say something stupid.”
“Nope.”
“Like ‘that’s cute.’”
You bite your tongue.
Clarisse’s stare sharpens. “Were you going to?”
You hold up a hand in surrender. “I was going to say… it looks like it’s been through a lot.”
Her eyes narrow, suspicious, but she doesn’t snap at you.
You push a little, carefully. “Like you.”
Clarisse’s grip tightens on the hoodie.
“You don’t know me,” she says.
“I know you’re fierce,” you reply. “And everyone acts like that’s all you are.”
Her gaze flickers. “It is all I am.”
You tilt your head. “Is it?”
Clarisse looks like she wants to argue. Like she wants to pick a fight because fights are easy and feelings are… not.
Her shoulders tense. “People don’t respect you unless you make them.”
“I respect you,” you say.
Clarisse’s eyes flash. “Because you’re scared.”
“No,” you say, voice steady. “Because you’re cool.”
That lands.
It lands so hard you watch her stumble internally, like you shoved her with words instead of fists.
Clarisse blinks. “Cool,” she repeats, like she’s tasting the word and deciding it’s ridiculous.
“Yeah,” you say, shrugging. “You lead like you mean it. You fight like you mean it. You don’t pretend.”
Clarisse’s gaze drags over you again, slower this time. Less like a threat assessment. More like… she’s actually seeing you.
Then she scoffs. “You’re weird.”
You grin. “I’ve been told.”
A pause.
The cabin is still too quiet. The other Ares kids are pretending they’re not listening, but you can feel their attention like heat on your skin.
Clarisse shifts, and her voice drops lower. “You should leave.”
You nod. “Okay.”
But you don’t move right away.
Clarisse’s brow furrows. “What.”
You glance at the hoodie in her arms. “Just… don’t leave your dagger outside again. Someone could take it.”
Clarisse snorts. “No one’s stupid enough.”
You lift an eyebrow. “I was stupid enough to pick it up.”
That earns another flicker—this time, the smile almost stays.
Almost.
Clarisse clears her throat, like the sound annoys her. “If you find my stuff again… just—” Her jaw tightens. “Just bring it in.”
You blink. “Really?”
She glares. “Don’t make a thing out of it.”
You raise both hands again, surrendering. “Not making a thing.”
Clarisse shifts the hoodie, and for a second, it slips—just enough that you see the inside tag.
It has a name on it, faded and messy, like it was written by a kid:
Clarisse.
Something in your chest squeezes.
Clarisse notices where you’re looking and yanks the hoodie closer again, defensive.
You keep your voice light. “Red suits you.”
Clarisse pauses.
Then she mutters, “Yeah. Whatever.”
But her ears go slightly pink.
It’s so subtle you almost miss it.
Almost.
You take a careful step back. “I’ll go.”
Clarisse watches you as you turn away.
You’re halfway to the door when she calls out, rough, “Hey.”
You stop.
You look back.
Clarisse stands there, hoodie clenched in one hand like a lifeline and her other hand flexing like she doesn’t know what to do with it.
Her eyes lock on yours.
“Thanks,” she says, like it’s an insult.
Your chest warms anyway.
You grin, softer this time. “Anytime.”
Clarisse looks like she hates that answer.
And also like she doesn’t.
As you step out into the sunlight, you can still feel her stare on your back—heavy and confusing and intense.
Like she’s not sure what to do with someone who doesn’t flinch.
Like she’s not sure what to do with someone who saw something soft beneath the armor…
…and chose to protect it.
And for the first time since you arrived at camp, you think:
Yeah. This is going to be a problem.
Because you’re pretty sure Clarisse La Rue is already becoming one of your favorite problems.
And judging by the way she didn’t tell you to get lost…
You might be becoming hers, too.









