Warning: There's like a tiny bit of implied sexual content.
Percy missed chairs.
Well technically, that was only partly true.
He loved the alternative he was given.
After the Titan War, him and Nico had started dating.
Things were really good until he got abducted by Hera.
From the time Jason showed up at Camp Half-blood to the end of the Giant War, Nico had started showing an interest in Jason.
They had a bond, Nico being there to witness cupid out Jason, something he knew could negatively effect Jason.
Percy saw the way the two acted around each other. He didn't mind, if only for the fact that he had a crush on Jason too.
He'd always had a thing for blondes.
It was when Percy walked in on Nico and Jason making out when they decided to sit down and have a talk.
In the end, Jason was added to their relationship.
Rules were made, quidelines set.
Asses fucked.
It was when Will Solace started flirting with Nico that things got complicated.
Nico, Percy and Jason had set a good pace, were helping each other heal.
Nico had felt something stir inside his chest, a fluttering in his stomach whenever he was around Will.
He stayed away, not wanting to ruin his perfectly good relationship.
It was Percy who started inviting Will to hang out with them.
He'd seen that dark look in Will's eyes that he tried so hard to hide with happiness.
Percy saw it. Saw it because it's what he found every time he looked in the mirror.
Percy started hanging out with Will, trying his hardest to cheer him up.
He couldn't stand to see a once so happy person so dead on the inside.
He remembered the old Will, if only vaguely.
He'd seen first hand what war could do to someone, making it his mission to heal as many broken souls as he could.
What he'd forgotten to do however, was heal his own broken soul.
And that was where Will came in.
Will helped Percy realise it was okay to be selfish, to focus on himself for once.
It took him a while, he had to convince Percy that, technically, he wasn't even being selfish.
He was keeping himself alive.
Noticing how much Will helped Percy, Nico gave Will a chance.
Allowed his heart to beat faster whenever he was close, the feeling he had only ever felt around, first, Percy and then Jason.
And now Will.
At first, Jason didn't know how to feel about Will. He knew about his crush on Nico, they all did.
He also knew that Percy had known Will since at least the Titan War.
So of course he was worried. Why wouldn't he be?
But then he himself got to know Will.
In a way, Will was a second Percy. It wasn't that they were the same, they definitely had a lot of differences. It was their similarities that brought them all closer however.
Their bright smiles.
Kind souls.
They helped heal each other as well as Nico and Jason, something that strengthened their bond.
They hadn't even noticed when Will joined their relationship.
They had all started falling asleep in the Poseidon cabin.
Inviting Will to hang out with them on what was considered a date.
They had literally accidentally started dating.
They had all laughed when they realised, unable to believe they could be so stupid.
Jason, Nico and Percy had been cuddled up together on Percy's bed in his mom's apartment, having just gotten back from their date when Percy brought up missing Will and how it was so weird he wasn't with them.
They all paused, realisation setting in.
They headed straight back to camp, wanting to get to Will quickly so they could sort everything out.
Will himself hadn't realised it either, letting his thoughts stray. Let them get darker.
Just as his mind was about to enter dangerous territory, he felt as weight settle on his lap, a hand on his cheek.
He blinked dazed, looking up to find Percy sat on his lap, his face a light shade of pink.
"I didn't know how else to get you to stop."
Will smiled sadly, having realised what he doing, remembering Percy knew him so well because he too had those thoughts.
The conversation had ended there, the four of them falling asleep cuddled up once more, Percy still in Will's lap.
They had decided they'd talk things through properly the next day.
And they did, Will becoming an official part of their relationship.
It was a few weeks later at lunch that Jason's mind started to wonder, his anger slowly taking over.
He jumped slightly as he felt a pressure on his lap, looking down to find Percy grinning up at him as he nibbled on a slice of blue pizza.
"You had that look on your face again."
"So you decided to sit on my lap?"
"Well duh, you're comfy."
Jason smiled, wrapping his arms around Percy's waist as he allowed him to feed him some of his pizza.
It actually tasted alright.
Nico had spent the entire day in the Hades cabin, not once coming out, no matter how hard the others begged him to.
It was when he was sat on the end of his bed just staring at the wall that something landed on his lap.
Disgruntled, Nico moved his eyes away from the wall, turning to look at Percy sat on his lap, a worried expression on his face.
Nico felt his heart pang with guilt, knowing Percy was worried enough not to complain about how he could easily sit in his lap now and that it wasn't fair that puberty was so nice to Nico.
Nico looked away for a second before turning to look Percy in the eyes, finding himself captivated once more.
"I'm sorry."
Percy frowned, reaching up to wrap his arms around Nico's neck and bury his head in his neck.
"Don't ever be sorry. Please."
Percy's voice turned into more of a whine near the end, conveying just how upset he was.
It was Will who first noticed how much Percy sitting in their laps helped them.
He didn't understand why it helped, he just chalked it down to their subconsciouses needing reassurance that he was still there.
It didn't only help them however. Percy seemed to be really benefiting from it.
So it became a thing they did.
Sometimes it wasn't even when one of them needed comfort. It had just become a habit.
They alternated between who would sit on who's lap, Percy always sat in a corner pouting because he wasn't allowed to join in the conversation.
Apparently, to them, it was obvious none of them would ever sit in Percy's lap, Percy always sitting in one of theirs.
Percy always had to turn away at that point, trying to hide the small smile on his face at the fact that they knew him so well.
What Percy didn't realise however was this meant he was never allowed to use chairs, always being pulled down onto one of their laps.
Maybe, just maybe, Percy could live without chairs.
As long as he got to use his boyfriends as a replacement, it didn't seem so bad.