Totally inspired by the Askusoppu blog on tumblr. I wanted to get this out faster, because the questions were literally being answered as I wrote it, but I got delayed. xD

Title: Chemical Reactions

Theme: #13- Soap

Claim: SanjixUsopp

Words: 1,173

Rating: T

Warnings: Boyxboy more towards the end.

Disclaimer(s): I don't own One Piece.

How the hell he ended up in the bathhouse was something Usopp could not figure out no matter how hard he tried.

The very thought that he had somehow changed into his swimming trunks scared him; He was sure he was wearing his normal clothes before he ended up in the bathhouse. There was only one person he'd be remotely comfortable with changing him while he was asleep, if he could call whatever he just woke up from sleep, and that person was Sanji.

'Why would he strip me of my clothes, put my trunks on, then throw me in the bathhouse?' Usopp thought to himself as he sat up. Nothing felt out of place, everything seemed to be completely normal. If one could consider the situation normal.

The door opened just as Usopp started to stand. He was completely surprised as Nami and Robin walked into the room, each wearing their swimsuits and shorts. Surprised, Usopp looked between both girls after they closed the door and frowned. "What's going on here?" he asked.

"Robin, lock the door," Nami said, her grin twisted upward as she leered at Usopp.

Robin nodded and reached behind herself. The audible click of the lock could be heard through the entire room, and it made Usopp's heart sink into his stomach. "Wh-What are you doing?" Usopp asked, his voice meek.

The girls crept closer to the sniper. Usopp noticed Robin was holding a few bottles behind her back. He wasn't sure what they had inside, but he started putting the pieces together. They were in the bathhouse, nearly naked, Robin was holding various bottles, and he caught a glimpse of one of their wash clothes behind Nami's back. It's like they were going to-

"You-You're giving me a bath?" Usopp cried out. In any other circumstance, he would have never come to that kind of conclusion. But if his memory served correct, he was certain Nami made some kind of comment that she wanted to play with his mass of hair last week. He refused of course.

"Just washing your hair, really," Nami said. "You let it grow out and now it just looks crazy. As girls, we want to make sure you can keep everything intact."

"Don't worry, Usopp. We'll be gentle," Robin chuckled as they crept closer.

Usopp looked between them both, fear taking over his features as their hands reached out to touch him. He tried to scream when they were close enough, even when Robin sprouted arms from his shoulders and clamped her hands over his mouth. They could still see obvious fear in his eyes, but they brushed their worries aside.

"Holy crap, Usopp. Your hair is so fluffy now!"

Usopp couldn't help but stare at his own reflection in the mirror, his face red from a mixture of the heat and his own embarrassment. Nami had to use the hair dryer on him. She had to comb it until his scalp hurt. He knew curly hair was hard to maintain, but it took some of Robin's extra hands just to get it dry. And Nami was right, his hair practically stuck out at all angles, and it was much softer despite the extensive treatment it had gone through.

"I appreciate you taking care of my hair, Nami, but I think I'm gonna let my scalp heal for a while," Usopp said as he tried to get up. He was surprised when Robin pulled him back to his seat, aware that her extra arms had sprouted once again and practically held him in place.

"Not yet. We'd like to get some pictures as well," Robin said, holding up the camera. Usopp groaned as she took a picture.

"Is the flat iron ready, Robin?" Nami asked.

"Not quite," the older woman said over Usopp's alarmed interest.

Nami pulled out various hair accessories, from where Usopp would never really know, and divided his hair into two parts. "We'll do pigtails first!" she grinned.

"P-Pigtails?" Usopp whined, wincing as Nami tugged on his hair.

The red-haired woman worked quick, pulling his hair into rubber bands in a matter of seconds. The style was comical on him, especially since his hair still poofed out to the sides. It was like he had two large, black cotton balls just under his ears. Robin snapped another photo, this time with Usopp sighing through his nose, and Nami tore the rubber bands out before he could speak.

"Ow!" Usopp cried, holding his scalp when his hair fell against his back again.

"Sorry about that Usopp," Nami said. She grabbed the brush and quickly pulled on his hair, pulling plenty of it out in the process. Just as he yelp, she clipped his hair back with various pins. It was such a quick job, he barely even noticed until he looked in the mirror. "Ooh, I like the clips," Nami chirped.

"Wh-What's with the hearts and bows?" Usopp asked, very aware of the "girly" clips in his hair. "Please tell me you're kidding. I don't like this."

"Chill out, Sanji has worn my clips to hold back his hair before," Nami said. She waited for Robin to take another picture before she started taking them out. It was a harder task this time around, since most of them tangled in his hair. "Shit, we're gonna have to cut some of them out."

"WH-WHAT?" Usopp exclaimed. "Damn it, Nami!"

"Sorry, sorry!"

"Sanjiiii…"

The cook smirked at the familiar way his name was drawn out. The tone was needy, looking for something but not quite sure what that something was. It usually came from one person, maybe two; More than often, it was the same person. That person was Usopp of course.

"What's wrong?" he asked out of habit, shifting as Usopp snuggled against his back. He caught a whiff of coconut, which lit up his senses in excitement and nearly caused him to drop the plate in his hand. "Did you just get out of the bath?"

"Nami and Robin messed with my hair, forced me to take a shower," Usopp whispered. He slouched against Sanji's back to find relief; cuddling always made him feel better. "And when they finished cleaning me, they tore my scalp apart with their stupid hair products! All the hair ties, the clips, the flat iron-"

"Slow down, slow down," Sanji interrupted. He dried his hands and forced Usopp to let him go, turning in the sharpshooter's arms. He picked the younger up by his waist and turned back to the counter where Usopp sat and curled his legs around Sanji's waist. As Sanji leaned in for a kiss, he spoke. "Now tell me what happened, slowly, so I can- Shit, you smell like coconut all over!"

Usopp blushed and pushed away slightly. "Shut up! They scrubbed me with their stupid girl soap," he said.

"I like it," Sanji chuckled, pulling the collar of Usopp's shirt down so he could smell his skin, forgetting about Usopp's ranting.

"H-Hey! You're not listening to my story!"