It started like any normal day on the Thousand Sunny: the sun was shining, Luffy was eating more meat than a lion at a buffet, Zoro was asleep somewhere random, and Sanji was in the kitchen preparing something heavenly for dinner. Meanwhile, Usopp had a plan. A big one. One that would make him the bravest man on the sea.

It all began with a weird little artifact they picked up from a spooky island. Usopp, ever the curious coward, decided to mess around with it behind everyone's back.

"It's probably cursed," Robin warned.

"Cursed schmur-sed, I'm just gonna poke it a little," Usopp had said confidently.

He poked it.

The artifact glowed, twisted, and shot a strange green light into his face. Then his body melted. Not in a gruesome way—more like it turned into stringy fabric, zipping and twisting into loops, seams, and stretchy fibers.

Usopp screamed. "AAAAAARGH! I'm turning into—"

THWUMP.

He was suddenly soft. Flexible. Cottony. And lying… on Nami's bed?

His consciousness felt weird. Spread out. And soon, he realized he was no longer standing—he was folded neatly into a pair of tight orange pants. Nami's pants.

"Oh no."

"Where'd Usopp go?" Luffy asked with a mouthful of meat.

"Probably hiding," Nami muttered, walking into her quarters to change into something more comfy. "Ugh, I'm bloated from lunch…"

She yanked off her jeans and, without a second thought, slid into Usopp—now her snug-fitting, slightly stretchy orange pants.

Usopp would've screamed again… if pants could scream.

Instead, all he could do was feel. Every brush of her skin. Every tug of fabric. Every shift of her hips.

And then… the pressure.

Nami sat down at her navigation table, unfolded the sea charts, and leaned forward to calculate their next heading.

Usopp was directly under her now, pressed tightly against the curve of her butt, his cottony form wedged in her seat. She adjusted her waistband and sighed.

Then it hit him.

PPPPrrrrfffft.

A fart. A long, silent one. Nami didn't even flinch.

Usopp did. If he had lungs, they would've melted.

The scent seeped into his fibers. Hot. Moist. Sulfurous. It was like someone microwaved a rotten egg inside a boot.

"WHAT IS HAPPENING TO ME!?" he mentally screamed.

But it wasn't over. Not even close.

Dinner time.

Sanji brought out a fancy tray of sautéed sea bass with garlic butter and roasted veggies. Nami, proud of her hard work navigating, plopped down into her seat and started chowing down.

Usopp, now clinging to her lower half like an unwilling air freshener, felt every movement. Every shift of her thighs. Every gulp of food that churned in her stomach and fermented its way downward.

"Oh, this is so good, Sanji~!" Nami sang, cheeks stuffed.

Then—brrrrffftt.

Another fart. Hotter. Wetter. Absolutely lethal. She shifted slightly to muffle it into the seat cushion.

"Ugh… thank god these pants muffle everything," she whispered to herself. "Sanji would die if he heard me."

Usopp was dying.

He couldn't escape the smell. It was everywhere. Saturating every molecule of his new cotton-poly blend form. He could feel the fart's heat cling to his threads like a death shroud.

Then came the worst part.

She stood up to grab a drink, and the smell lifted with her. Like a death cloud. Like the ghost of everything she'd ever eaten.

"Oh no, oh no, OH NO—" Usopp thought.

She sat down again.

FRRRRRT.

Another one. She fanned her shirt to cool herself off, completely oblivious to the soul trapped in her pants, suffering a fate worse than death.

"Ugh, I gotta stop eating garlic with fish. That combo's killer."

It was

Days passed. Usopp was never turned back.

Maybe the curse only breaks after a full week… or a hundred years. Who knows?

All he knew was that Nami wore him nearly every day. She liked these new pants. They were breathable, soft, and apparently had "some kinda weird odor-blocking magic."

Nope. That was just Usopp suffering silently, absorbing every silent-but-deadly emission.

She farted constantly. Quiet, warm, deadly ones—most during navigation or meals. Sometimes, she'd laugh and say, "Whew! Glad I'm alone right now," while Usopp wept inside her butt crack seam.

She even did yoga in him once.

That day was catastrophic.

No one ever found out what happened to Usopp. Every now and then, Chopper would say, "Has anyone seen him?" and someone else would shrug.

Meanwhile, Nami lounged on the deck, sipping tea, her favorite orange pants stretched across her backside.

She let out a muffled bblrrrrppp and didn't even react.

The pants twitched slightly in the breeze.