Five Times Percy Didn't Adult and the One Time He Did

Three: Jason

Jason was rarely confused. He was an analyst by nature, and anything he didn't comprehend, he could usually figure out with context and clues.

Not these-

"They're Epipens," Percy rolled his eyes, grabbing them out of Jason's hands before the other demigod could react.

"Epipens?" Jason was fairly certain Camp Jupiter didn't have those- or he would know what they are. They must be a uniquely Greek thing, he decided.

Percy chuckled and then stopped. Did Jason really not know? They were common, allergies that needed Epipens. He glanced at his shoes briefly, suddenly becoming self-conscious. Did they only seem normal to him because he'd grown up with it? But Annabeth hadn't been confused-

"I grew up with wolves, man," Jason said easily, drawing Percy's eyes away from his feet. He may not know what those yellow markers were, but he knew Percy well enough to know he was uncomfortable. "I didn't know what a fork was until I was eight," He continued, trying to put Percy at ease.

It worked. Percy chuckled again and pocketed the Epipens. "They're for allergic reactions. Peanuts, for me. I stab myself with one so I don't die."

"Stab?" Jason paled. Stabbing was a terrible thing to do to yourself. He'd been using swords long enough to know that.

"Not like that," Percy assured him. "It's a needle. Y'know, like- do you guys do flu shots?"

"Does Camp Half-Blood?"

"Fair point. It's similar, just bigger. But don't worry- you won't have to use one." 

Hopefully. Percy loved Jason, he really did. He trusted the son of Jupiter with his life in a fight, but with an allergic reaction? Jason was a Roman legionnaire; he didn't have enough experience in the mortal world for Percy to want him helping.

He'd even prefer Thalia- she, at least, knew how to dial 911.

It really was just Percy's luck that the very evening of the day he wished that, Jason was trying to uncap the Epipen while Percy laid there panicking, feeling slightly helpless in the whole ordeal. An unfortunate monster attack while they were out shopping had ended in a Five Guys' kitchen.

Not Percy's best moment.

"Got it!" Jason exclaimed, right as Percy was about to accept his death by peanut fries.

"Stab it in," he wheezed as Jason held the Epipen unsurely. "It'll do the opposite of kill me."

"Right. Saving you from allergic reaction," Jason nodded. He still hesitated, but Percy could think clearer now.

"Do you know how to call 911?" He asked, and Jason chuckled tightly in relief.

"I'm from Camp Jupiter, not Mars."