A/N: I thought of this literally twelve hours ago. And I just finished. Sorry for the wait.
Shanks x Mihawk

They say living on the corner of the street lives two men. One with one arm and one with golden eyes. Along with a girl with pink hair and one boy with green hair. It's said once you step in there you never return.
"Knock it off Usopp." Nami huffed.
Zoro stood on the other side of his fence with a bucket of cold water, he peaked over to Usopp and smirked. Zoro dumped the bucket over his head and watched him stiffen and they both scream. Zoro chuckled. As he watched them scramble off.
"Roronoa!"
Zoro grunted and turned to his father. Mihawk cocked a brow before snapping and pointing in front of him. Zoro hopped off the ladder and stepped up to his father. Zoro was a troublesome teenager, along with his Step brother. Luffy. He pinched Zoro's earlobe and pulled him inside. Zoro whined and complained until he got to his room.
"But dad! I had to do something, the stuff they say about us is-"
"I don't care what they say, just stop. You need to make friends."
"Him make friends? He can't even talk to his crush without screwing up." Perona teased.
Mihawk glared to her having her gulp and walk down to her room. Zoro pursed his lips as Mihawk turned to him.
"And who is this mystery person?" Mihawk asked a small smirk on his lips.
"No one!" Zoro blushed.
"Do we need to talk about sex?"
"Dad!"
Shanks poked his head in to Zoro's face beat red and Mihawk sitting at his desk.
"What's going on up here?" Shanks asked.
"Nothing! Just leave me alone!"
Zoro shoved both of his fathers out of his room and slammed the door. Shanks laughed as Mihawk gave a small chuckle. He and Shanks headed downstairs to the living room. Mihawk sighed resting his head on Shanks shoulder while he combed through his hair.
"It's Halloween in a few days." Shanks said.
"Mhm." Mihawk grumbled.
"Why don't you and me have a party."
Mihawk glanced up to him, "You suggest that everyday."
"Come on. Benn said he can bring everything we need. It's been a while since we hosted a party."
"Fine. But. Anything goes wrong it's your fault."
Shanks laughed and agreed.
As the two days went by, Mihawk groaned putting on his vampire costume. He stuck his fangs in and popped up his collar. Shanks was literally a red devil, he trotted in with his tail swaying behind him and his red fingers crawling up into Mihawk's open shirt. Mihawk glanced over to the red haired devil. Noticing his devil horns and fangs.
"You couldn't of put on something more, decent?" Mihawk asked.
"I know you like my little booty shorts."
Shanks wagged his butt having Mihawk eye him. The door bell rang having the two perk up. Shanks smiled before skipping off. And Mihawk's golden eyes followed the spandex shorts out of the room. He sighed collecting himself before going down to greet the first guest.
"Dad! Stop it!"
Shanks smiled, "Roger good to see you."
Roger and Rouge were dressed up as Mortisha and Gomez. While Ace was pugsley. Roger laughed as Ace huffed to his hair being slicked back.
"Ace!" Luffy cried.
And there went the two, as the party got started Shanks trotted up to Mihawk swirling his wine.
"So. How are you liking it?"
"My son hasn't come down from his room. My daughter is flirting with Smoker, and I don't know half of these people. But. This is one of your better parties." Mihawk said.
Shanks smiled, "Do I get an approval kiss?"
Mihawk sighed as Shanks cupped his face and kissed him. He pulled back and patted his cheek before walking off.
"Red hair!"
He turned, "Yeah?"
"I hate watching you go but I love to watch you leave." Mihawk smirked.
Shanks grinned. Mihawk went back to get some more wine. When a blonde boy walked in. He was dressed as a jock wearing a leathermens jacket, a tank top and tight jeans.
"Excuse me." He spoke.
Mihawk turned to him, "Can I help you?"
"I heard, Zoro lives here?"
"I'll get him wait here."
He smiled and nodded as Mihawk went upstairs to Zoro's room. He opened the door to Zoro painted up like a Zombie.
"Some, jock. Is here to see you."
Zoro smirked, "Franky you son of a gun."
Mihawk followed Zoro out and once he got up the stairs. Zoro hid behind the wall.
Mihawk cocked a brow, "What's wrong?"
"Hey Zoro! Sanji's here!" Perona called.
Zoro pursed his lips and hid farther behind the wall.
"Why are you hiding?" Mihawk asked.
Zoro turned to him before straightening and pushed his father to the stairs.
"Tell him to go away." Zoro said.
"Why?"
"Because. I. No reason just do it."
Mihawk chuckled as Zoro headed back to his room. He headed down to the blonde looking around the house.
"He's upstairs, the second door on the right. He's being. Shy."
Sanji nodded before going upstairs. Shanks came back a minute later.
"Who was that?"
"Zoro's crush. I figured they should talk privately."
Shanks chuckled as he pulled Mihawk to the living room to dance. Which he didn't but sit on the couch and watched those black spandex wiggle and move. It had to take his sheer willpower not to steal Shanks away to their room. Mihawk's tongue ran over his fangs as his eyes followed up Shanks painted red body.
"Dad!"
Mihawk snapped and turned to Perona.
"What?"
"I'm going to bed. Goodnight."
"Can you check on your brother. Make sure he's not. Dead. And where's Luffy?"
"Luffy left with Ace and Sabo. Don't worry about Zoro, He and his new boyfriend are getting along, very. Well."
Mihawk cocked a brow at her before brushing it off and going back to the party. Once it was over and Shanks was drunk as hell. Mihawk dragged him upstairs but stopped outside of Zoro's room.
"Be quiet." Zoro hushed.
Shanks perked up and bursted into the room. Mihawk following after only to have them all freeze. Sanji was under Zoro as they both were butt naked. Shanks pulled a toothy grin before turning to Mihawk.
"Let's have an orgy!"
Mihawk smacked him upside the head, he turned to Zoro and the blonde.
"I'll deal with you tomorrow."
Sanji clutched Zoro's shoulders as Mihawk left dragging Shanks down to their room. Mihawk tossed him onto the bed before pulling out his fangs.
"I should of left you on the grass. Your going to make our sheets all red."
"Mihawk!" Shanks chimed.
He turned to Shanks.
"Yes?"
"I'm horny."
Mihawk turned away pulling off his cape.
"Your drunk, no way in hell."
Shanks whined as he slumped back on the bed.
"Three, two, one." Mihawk sighed.
He turned back to Shanks asleep and snoring softly in bed. Mihawk pulled off his shirt and pants before putting on his sweats. He helped strip Shanks of his costume but only left the spandex shorts on.
"I ask myself why I married you at least ten times a day." Mihawk said looking at Shanks sleeping form.
Shanks smiled in his sleep as Mihawk smiled softly and kissed his forehead. He went to the bathroom for a glass of water and some headache meds. He placed them by Shanks side of the bed. Mihawk crawled in bed and turned to Shanks. He had a sleepy smile on his face with his eyes heavy lidded.
"I love you." Shanks said.
Mihawk smiled kissing him softly before pulling back. He turned off the light as Shanks fell asleep once more.
"I always have a different answer. This time it's because, I'm in love with you." Mihawk said to Shanks.