(Law x reader)

You sighed opening your eyes to the ravenette doctor. He was sleep as he held you close. You smiled reaching over and kissing his lips ever so gently. Knowing he needed as much sleep as possible. He gave a pleasant hum before cracking open an eye to you.

"Good morning." You chime.

"Good morning love." He chuckled.

"I have to go."

"Just a little longer, Kidd won't wake up just yet."

You giggled, "Law, I'd rather live another day."

Law sighed as you got up and got dressed. His amber eyes followed you the whole way.

"I'll see you at breakfast." You winked.

He smirked, as you left the room and headed down the sub. You pushed open the door leading to outside. Kidd's ship was tied to the railing of Law's ship. The two of them formed a small alliance. Just for a little while. It was just some bullshit excuse so he could sleep with the captain's sister. Which. Was you. You were Kidd's sister. Not by blood but. He adopted you and protected you as you were his sister. But once you had met the surgeon of death himself at the human auction. He wanted you. He had to have you. And so began this small alliance.
You hopped over to Kidd's ship. Careful not to make a single sound. You placed a hand to your chest.

"Calm." You muttered.

Sealing yourself in silence. You walked down to the ship not making a single sound. You checked on Kidd seeing him snoring while his blankets were tossed everywhere. You rolled your eyes shutting the door before starting breakfast. Where Law had joined you in the kitchen sometime later.

"Good morning Law." You said.

"Good morning." He grumbled.

You placed a cup of coffee before him on the table. He glanced up to you with a small smirk placing his hand on yours.

"I had a great time last night. I hope we can do it again tonight." He purred.

"Depends if you behave." You hummed.

He chuckled pulling you close, "You know how I don't like to behave. Maybe you should punish me."

"Oi! Trafalgar get your grubby hands off my sister." Kidd barked.

You both turned to Kidd. His face in a deep scowl as he crossed his arms. Law sighed letting go of you as you went to get coffee for Kidd. He took a seat in front of Law glaring at him.

"Good morning Kidd. How did you sleep?" You asked.

"I slept fine. Where the hell were you last night. You weren't in your room." Kidd barked.

"She simply fell asleep on my ship. No one touched her. I made sure of that." Law said.

Kidd slammed his hands on the table earning Law's attention.

"Look here! Something fishy is going on here. Once I figure out what I'm gonna snap your neck." 

"Calm."

You placed a hand on Kidd's shoulder. His ranting began but it was silent. You placed a cup of coffee before Kidd before sitting next to Law. Where you both watched Kidd go on about something. He went on like this until he wore himself out and sat down. You snapped your fingers as Kidd was able to make sound again.

"So. Who's hungry?" You clapped your hands together.

Later that night the Heart and Kidd Pirates docked at an island. Which means. Booze and partying. You and Law stayed behind as Kidd and the others went off to the island. You approached Law wrapping your arms around his neck. 

"How about we go somewhere a little more. Private." You purred.

"You read my mind."

"Room!"

Both of you were teleported back to the sub. Inside of Law's room. Both of your lips clashed as tongue was soon to follow. As clothes were shed leaving a sex trail to the bed. Law pinned you to the bed kissing down your neck and to your chest. You hummed before you snapped your fingers. A purple orb surrounded both of you and the bed. Law pulled back and smiled softly.

"This hasn't been the first time I've seen this." Law said. 

You giggled, "Corazon would still be proud of you."

Law smirked, "Well. Not right now."

Kidd went back to the ship to look for you. 

"(Y/N)?" He called.

He held a book in his hand knowing you would like it. Kidd went to your room finding it empty. He pursed his lips before going through each and every room. Kidd frowned not finding you here. Then he noticed Law's ship. He furrowed as he climbed out of his ship and went to Law's. Kidd nodded to the metal work of the ship. Then proceeded to find you. Peaking into the lounge room, the operating room, kitchen, bedroom, bathroom. He clicked his tongue when he noticed a room at the end of the hall. Where a single light was shining through the crack of the door.

"Maybe he knows where she is." He muttered.

I mean he isn't wrong. Law did know where you were. 

He pushed open the door and dropped the book. You were pinned under Law as your eyes widened and the bubble popped.

"Why are you so tense all of a sudden?" Law asked.

"K-Kidd." You stuttered.

He snapped over to Kidd. His face was in shock, fists clutched as he snapped out of it. He rolled his neck cracking his knuckles. Law sighed getting up and pulling on his boxers. While you wrapped yourself in the sheets. You hid behind Law as he held his ground.

"You got some balls sleeping with my sister Trafalgar." Kidd barked.

"Yeah I know. That's why I did it over five times already." Law smirked

Kidd chuckled as he grew more mad.

"Don't piss him off more." You muttered.

"I'm gonna snap you in half!"

"Room!"

Kidd was teleported outside. Leaving Law to get dressed. You pulled on your underwear and your clothes. Law left having you follow.

"What are you doing? Your going to piss him off more." You said.

"Kidd and I are going to have a captain fight."

You froze as Law walked outside.

"You what?!"

You bolted outside Law stood on the sand as Kidd rummaged out of the jungle. He was so pissed his head would of caught on fire by now. 

"Let's make a deal Kidd." Law said.

Law picked up a rock before it turned into his Nodachi. He placed it on his shoulder as Kidd brushed off the vines and leaves from the jungle.

"I'm listening." Kidd said.

"Captain battle, you and me. If I win I keep (Y/N). If you win, you-"

"You will break this alliance and not see my sister again. Deal?" Kidd said.

"Deal."

"Wait don't I get a say in this?!"

But they weren't listening. Law unsheathed his sword as Kidd chuckled raising his hand. Then they bolted to each other. Sparks flew as grunts and groans. You watched them fight. Which lasted until dawn. Where Law's sword was tossed out of his hand as Kidd held him in his large metal hand.

"Stay away from my sister." Kidd growled.

He dropped Law where you were taken back to Kidd's ship and locked into your room. You sat on the corner of your bed in your night gown. A few tears slipped down your cheeks. You sniffled wiping them away when the door opened. You didn't turn to look to Killer.

"Hey. How you doing?" He asked.

You whimpered turning to Killer, "I didn't want this to happen."

He sighed going into the room and sitting beside you. You sobbed onto his shoulder clutching onto the fabric of his spotted shirt.

"I loved him Killer." You cried.

He glanced to the door where Kidd was leaning against the door frame. He clicked his tongue before leaving.

Kidd banged on the door of the submarine. Law swung open the door a minute later. He crossed his arms leaning against the doorframe.

"Do you love my sister?" Kidd asked.

"Why do you- "

"Answer me!"

"And if I said I did?"

"You. Can keep her."

Law blinked, "What?"

"You can keep (Y/N). She's upset and claims to love you."

Kidd grabbed he hood of Law's sweatshirt and pulled him close.

"But if you hurt her, use her for one of your gross experiments. I will find you and I won't hesitate to kill you." Kidd growled.

"Kidd."

They turned to you with a soft smile, Kidd dropped Law as you embraced him. Kidd held you back before he pulled back handing you a torn piece of paper. You smiled taking it.

"If you ever need me. This piece of paper will unite us."

You smiled thanking him before you turned to Law and embraced him. Law embraced you back before pulling back. You both turned to Kidd.

"I hate you." Kidd growled before storming off.

You giggled, "One day he will be your brother in law."

"That's not the only thing I'll be in."

"THATS IT IM GONNA KILL YOU!" Kidd called.