I'm protecting your precious brother from you

"Nnngh! Ace!"

You'll bring him nothing but pain, the way you are now

"Slow the fuck down, you moron!"

Ace thrust into the pale body lying prone before him. He was in his room, fucking Law. The older male groaned as Ace ignored his complaints, fucking him harder. Their gasps and the sound of skin on skin filled the semi-dark room.

"To the right, yeah, fuck, right there."

"Good spot?" Ace smirked.

"Shut up. Nngh!"

You'll bring him nothing but pain

Ace reached down and circled his palm around Law's rock-hard cock. Law moaned and started to pump his hips, rutting against Ace's palm. A couple of minutes later he stiffened.

"Ace…gonna cum," he mumbled before shuddering and climaxing into Ace's waiting hand. Ace grunted and came seconds later. He stayed like that, Law's legs on either side of him, until the last spasms died. He then pulled out with a wet squelching noise and collapsed on top of Law's sweaty body, his breath intermingling with Law's.

"Forgot, Break wants you asap," Law mumbled, "sent me to get you."

Ace groaned. "The hell? Why didn't you say anything?"

"I was going to and then you pushed me down without warning, horny bastard," Law grumbled. He rolled over and grabbed his jeans when a thunderous knock started them both out of their post-sex reverie.

"I'll get it," Ace grumbled, rolling out of his bed reluctantly. He yanked on his underwear on the way to the door, the knocks growing increasingly insistent.

"I'm coming!" he shouted, pulling open the door.

It was Luffy. The younger boy looked startled that the door actually opened but quickly replaced his surprise with a scowl.

"I can't accept it," he declared loudly, crossing his arms before Ace could get a word out. "I know I'm dumb but I absolutely won't accept it."

Ace stared at Luffy, a sudden surge of emotion throwing the coherence of his thoughts into shambles. Luffy stared at him defiantly.

"Who is it?" Law asked, appearing at Ace's shoulder. Law had only pulled his pants on and his shirt was in his hand. Luffy stared at him. "Oh, the little brother. Civilians aren't supposed to be in this area, you know"

"What are you doing here Trafeeger?" Luffy demanded.

"I'm going," Ace said abruptly, pushing past Luffy. He strode down the hall. Luffy didn't follow him.

….

"Infiltration," Break declared, slapping his pale hand onto the map spread out on his desk. Ace pushed down a feeling of intense hatred to glance down at the map long enough to recognize Break was pointing to Sabody, the main headquarters where the Celestial troops were stationed.

"Infiltration?" Ace repeated slowly, being careful to mask any recognizable emotion in his voice.

"Yes." Break sat back in his chair. "I want three things to happen. One, I want you to get captured by them. The group that attacked us should be regrouping around…here." Break pointed to a spot on the Alabasta desert, ways away from the Resistance facility. Go in a single-man attack and kill off the weaker ones and leave a couple of strong ones then let them capture you. They will undoubtedly have to take you back to their headquarters without enough soldiers for a decent second attack. Two, after you get their headquarters, I want you to spend exactly a week in silence. They will most likely torture you for information. Three, after the week is up, I want you to spend another two weeks getting information from them without arousing their suspicions. Mostly, I'd like a map of their headquarters and a list of their inventory. You got it?"

"Yes sir."

"Good. After you finish getting the information, do whatever you need to do to get out of there…alive." Break emphasized the last word with unusual sharpness and glanced up to lock eyes with Ace.

"Yes sir," he replied, voice impassive.

"You leave in three days. Prepare yourself."

…..

Luffy was broodingly sitting cross-legged on top of his cot in the small room that had been assigned to him, Zoro, Usopp, and Sanji. Nami was in the next room over with three other girls Luffy forgot the names of. Sanji turned out to be one of the volunteers in the kitchen so Luffy had just come back from eating as much of Sanji's cooking he could. The man was a magician. But recalling his second confrontation with Ace made the stomach sit heavily in his stomach.

He remembered the way Ace had greeted him. He had laughed and tousled Luffy's hair. He had smiled. He had been glad Luffy was there. It was only after Ace had been released from the hospital that he had become strange.

"Something wrong?" A gruff voice asked. Luffy felt a heavy hand land on his head and ruffle his black hair.

"Hey Zoro," he greeted.

"Hey." Zoro took a seat next to him, carefully leaning his katanas against the dresser next to the bed. "You've been awfully quiet since we got here."

"Yeah…I guess," Luffy replied glumly. His thoughts flashed back to Law from three days ago, standing half naked in the doorway of Ace's room. He visualized the rumpled sheets in his mind. He heard the moans coming through the doorway before his forceful knocks drowned them out.

"Were you guys…."Luffy trailed off. Ace had left him alone with this man.

Law arched his eyebrow in amusement. Fucking? Yes.

Color sprang to Luffy's cheeks. "Are you his boyfriend?"

Law laughed out loud. "No, we're fuck buddies. It's alright, younger brother-san." Law leaned in close, "everybody in our division fucks for two reasons only: hormone regulation…and to feel that we are alive."

"Luffy?"

Zoro's concerned voice broke into his thoughts.

"Say, Zoro. What's a fuck buddy?"

Zoro drew in his breath sharply. "It's…." he looked away from Luffy's wide, eager eyes. "It's when two people meet for the sake of having sex," he mumbled.

"Does it feel good when two guys have sex?" Luffy pressed.

"What?" Zoro felt color flush his cheeks as he stared at the younger boy.

"How do two guys do it anyway? Na, Zoro, tell me," Luffy urged, pushing his face close to Zoro's. He jerked backwards in surprise.

"Jesus Christ, Luffy, what the hell brought this on?"

"Zoro, tell me," Luffy begged, ignoring his question.

"God, Luffy!" Zoro pushed him down onto his back suddenly. Luffy looked up blankly at the green-haired boy.

"Zoro?"

"I won't be able to fucking control myself if you keep saying shit like that," Zoro growled between clenched teeth.

"Control yourself? Zo—mmmnh!"

Luffy's voice was muffled by Zoro's lips that were suddenly on top of his without warning. He pushed the older boy away bodily.

"Zoro, what are you doing?" Luffy gasped.

"I'll show you how men have sex."

As Zoro got closer and closer only one thing flashed through Luffy's frozen mind.

It's not Ace.

"Zoro, stop!"

Luffy tore away from his friend's grasp. Before Zoro could pin him down again, Luffy rolled out from under him and stumbled towards the door.

I need to see Ace

"Luffy!" Zoro yelled, guilt coloring his voice.

Luffy didn't reply, hurtling out the door and down the hallway. Without using the stairs, he agiley scaled the railings in front of the room doors, all the way down to the ground floor where they were repairing the holes in the wall. Without stopping, he sprinted out of the civilian tower, down the hallway, took several turns, and into the branch that housed the supernova division. He stopped at Ace's door and burst in without knocking.

"Fuck yes!"

Luffy stared.

There was a mass of entangled limbs piled on top of Ace's bed. Luffy recognized Law, at the bottom, his legs thrust wide apart. Ace had Law's legs on top of his broad shoulders and was thrusting against him. A red-haired boy Luffy didn't remember the name of was straddling Law's face, moaning as the older male sucked his cock.

The red-haired boy was the first to spot Luffy. He grinned and slid off of Law. Luffy shrank against the wall as he approached. The boy was broad-shouldered and was taller than anybody Luffy had ever seen before.

"Luffy? What the hell are you doing here?" Ace demanded angrily.

"I just…I mean…" Luffy stared back at the red-haired boy who suddenly seized him by the chin and leaned in so close Luffy could feel his hot breath on his skin.

"Don't be like that," the boy grinned, "He's cute. What's your name? Luffy was it?"

"Uh…" Luffy glanced nervously at Ace who was scowling. He pushed out of Law and strode over.

"He's off limits Kidd," Ace warned, shoving the red head away. He turned to Law who had pushed himself up to his elbows and was watching the whole scenario unfold. "You guys better go."

"We just started," Kidd protested.

"C'mon, Kidd." Law stood up and yanked on his pants, "We can go finish up in my room."

Kidd grumbled something under his breath but obligingly picked up his clothing. Ace waited as the two men exited his room before shutting the door and turning on Luffy.

"I told you to keep. Away," he snapped.

Luffy just stared at his older brother, flashes of what he had seen intermingling dizzyingly with flashes of Zoro's face.

"God, you're so fucking persistent!" Ace turned around to grab his boxers from where he had thrown them to the floor. "Go back, Luffy! And quit coming here."

"I can be your fuck buddy."

Ace froze.

"I…don't know how to do it very well," Luffy said carefully, not fully knowing how the words were coming out of his mouth, "but I can be your fuck—"

"Do you even know what that word means?" Ace demanded harshly.

"Yeah, Law and the red-haired guy are your fuck buddies, right? You guys have sex to…" Luffy frowned, recalling Law's words, "to uh…regulate hormone levels and uh…."

"to feel alive," Ace finished flatly.

"Yeah. That."

The two brothers stared at each other.

"Go back, Luffy," Ace finally said tiredly.

"No." Luffy shuffled towards his older brother and wrapped his arms around his waist. He leaned his head against Ace's chest. "Ace, I missed you," he said in a small voice.

"Luffy, stop it," Ace managed to say with difficulty. But he was already losing his willpower.

Luffy loosened his arms and pushed Ace down onto the cot. When the older boy didn't resist, he hooked his legs around Ace's waist and sat there with his head against Ace's shoulder. He kissed Ace's bare collar bone then glanced up to see how Ace was reacting.

Ace's eyes were full of pain. Luffy felt his chest throb.

"I won't leave," he whispered. He kissed Ace's chin tentatively then his cheek. "I won't leave you."

Ace gave up and wrapped his strong arms around Luffy. He shuddered when he felt Luffy's tongue lap the side of his neck.

"I'll…hurt you," Ace panted, sudden arousal coursing through his veins.

You'll bring him nothing but pain, the way you are now.

"It's fine. I'm strong."

Ace felt his self-control snap. He lifted Luffy up like he weighed nothing and slammed the younger boy onto his cot. Luffy barely managed to draw a breath before Ace swallowed his lips with his own.

Ace release him, his large hands wrapping around Luffy's hips. Luffy gasped when he felt them push up under his shirt, fingers teasing his nipples.

"That feels weird," Luffy complained. Ace shook his head and pushed Luffy's shirt up over his head.

"You'll get used to it," he said, leaning down to roll Luffy's nipples between his teeth. His tongue lapped at the hardening nubs, his fingers tracing abstract designs into Luffy's sides. Luffy felt a strangely warm feeling in his lower stomach and suddenly, his jeans felt too tight. Ace slid his palm over the crotch of Luffy's jeans as if sensing this. Luffy let out a little groan that went straight to Ace's nether regions. He didn't let it show though.

"See, you're feeling it" he said instead. He unhooked the waist band of Luffy's jeans and slid them over his legs. He palmed Luffy's growing cock over the thing material of his underwear- a tight navy blue affair. A little shiver darted down Luffy's spine. Ace pushed Luffy's legs apart and pressed the tip of his tongue against the wet spot forming on Luffy's underwear. His left hand keeping Luffy's legs apart, he cupped Luffy's balls with his right.

"Ace…" Luffy panted.

"Have you ever touched yourself?" Ace asked, hooking his thumbs onto Luffy's underwear and pulling it down. He gulped at the sight of Luffy's dick, pushing up against his stomach, a bead of precum resting on its pink tip.

"…no…" Luffy admitted.

Ace licked a broad strip from Luffy's balls to the tip of his dick causing the smaller boy spasm in his grasp. Ace carefully licked around the tip of Luffy's cock, lapping up the precum, and wrapped his lips around the tip. He sank down low, swirling his tongue around the hardening length. Milky thighs bracketed his head and thin fingers curled through his hair.

"Ace…feels so good," Luffy moaned, arching his back.

Ace bobbed his head in response, eliciting a loud moan from his baby brother.

"Ah…Ace…no…"

Luffy's legs stiffened. He's close Ace decided and swallowed Luffy's full length, his younger brother's dick hitting the back of his throat.

"Something…coming out…Ace!"

Luffy's cum flooded his mouth. Ace held it there and then let it dribble into his hand. He smeared cum over Luffy's puckered opening.

"You're…gonna do it there?" Luffy breathed. He stared down at Ace through half-closed eyes.

"You want to be my fuck buddy don't you? You want to…make me feel good…" Ace trailed off, rubbing the flat of his finger against the sensitive skin surrounding Luffy's hole.

"Sure….anything…as long as it's you," Luffy's response came faintly. Ace stiffened. His chest throbbed.

"It'll hurt you know."

"That's alright."

Ace sighed. He stood, yanking off his boxers, and crawled onto the bed next to Luffy. He rolled the younger boy onto his right side and lifted his left leg, hooking his hand under Luffy's knee. Luffy was trembling underneath his grip as his erection ghosted over Luffy's opening.

Ace thrusted forward and Luffy cried out as the older boy's dick slid in between his thighs. Ace let Luffy's leg drop and rested his hand on Luffy's hip as he fucked Luffy's legs.

"Squeeze your legs more," he ordered in between grunts.

Luffy obeyed. He could feel Ace's hard cock sliding against his sensitive skin. He was hardening again as Ace nudged him from below. His hand wrapped around his own member and started to pump in time to Ace's thrusts. Pleasure heated his stomach.

"Ah….ah…." Luffy moaned and thrust his hips back against Ace.

"You like it when I rub against your sack?" Ace growled, thrusting again.

"Yeah…it's…rubbing…nngh…against me."

Ace wrapped his arms tightly around Luffy and buried his head into Luffy's back. He started to move faster and more insistently, feeling heat coil in the bottom of his stomach.

"Gonna cum…again," Luffy moaned before releasing. The tremors that ran through his body pushed Ace over the edge and the older boy was following not long after. Both boys gasped and Ace released Luffy, his arms falling limply around his brother. Their breaths intermingled.

"You could have put it in," Luffy said sleepily, rolling onto his back.

"Mm," Ace mumbled unintelligibly. He was already half asleep, his face mushed up against Luffy.

"I guess we can clean up tomorrow," Luffy mumbled. He settled down into the messed up sheets and quickly fell asleep.

Ace waited until Luffy's breath evened out before shifting to look up at his brother properly since their reunion. Luffy had grown, almost as tall as Ace now. His raven hair flopped against his narrow face and his eyes were dark, round, and honest. His muscles were like ropes underneath his sun-browned skin, his hip bones and collar bones jutting. Asleep, he looked mature and sexy. Ace brushed a lock of Luffy's hair back from his face before carefully sliding off the bed. He grabbed some towels and wiped Luffy off the best he could before covering him to the neck with a clean sheet. Ace grabbed the dirty sheets and tossed them into the hamper with the rest of his laundry before padding to the attached bathroom to take one last shower.