Luffy bolted out of his bed ready to start the day, excited for what adventure awaits him. When he landed on the floor he smashed a box that was laying next to his bed.
"Huh? What's this?" He said as he picked the crumpled box up to examine it. The box had Christmas wrapping with a bow tied on it and a tag that read "To: Luffy From: Robin".
"Huh?! A present from Robin?!" So cool!" Luffy quickly tore the wrapping off and opened the squashed box. It was Robin's pussy, hairy with loose pussy lips hanging from each side. "Hey, it's that thing Hancock had between her legs."
Luffy saw a note inside and read it. It said "Only the best for my captain~ Make sure to use your penis fufu~".
"Eh? My penis?" Luffy took his boxers off and put his penis next to Robin's pussy and rubbed it against it for a while. "I don't get it, what's it supposed to do?" Suddenly his penis started to get bigger and harder until it was hard enough to penetrate Robin's pussy. "Woah! This feels great!"
Luffy kept pistoning inside Robin's clone pussy while Robin masturbated with her real one in her room, feeling full from Luffy's cock. His cock was huge, longer than a forearm and as thick as one too. She could feel him hitting the deepest parts of her that she'd never felt touched from any other person she's had sex with. The pleasure made Robin start using her entire hand to masturbate while using the other to tease her clit. After only a few minutes Robin came, her back arching and her pussy spraying everywhere, but Luffy showed no signs of stopping. Luffy kept fucking for seemingly an eternity and Robin came numerous times, when suddenly Luffy bit his thumb and yelled "Gear Three!" and his arm inflated to large proportions, then the air moved along his body until it made it to his penis, which inflated while inside Robin. Robin gasped as she felt herself getting fuller until her pussy was at max capacity. Her pussy was squeezing Luffy to comical degrees to where the part that's at her entrance is being squeezed to much smaller than the rest of the penis. Luffy kept thrusting while his penis was enlarged and Robin could no longer focus on anything else. She laid there with her back arched as much as it could and she clinged onto the bed with her hands and feet and hard as she could while screaming in pleasure. An onslaught of orgasms overcame her one after the other, her pussy spraying uncontrollably so hard it was getting on the walls of the room, and she was starting to get dizzy and her vision blurry. Luffy kept jamming his inhumanly large cock into Robin, penetrating her womb and hitting the back walls, each time making Robin jolt in pleasure like electricity running down her entire spine. Just when Robin felt like she was about to pass out she could feel Luffy finally about to cum. Luffy thrusted his cock as deep as it can go and the semen started to flood out. Instantly her entire womb and pussy was filled with his cum but he kept letting more out and it started to spray out of her pussy like a hose. Robin tensed her body up as hard as it could and waited for the flood of semen to finally end. She could feel his cock go back to its regular size and finally stop. Luffy pulled his cock out and her pussy was still gaped wide open and large globs of semen came spilling out.
"Wow! That was amazing! Thanks for the Christmas present Robin! Shishishi!"
Robin laid there, panting, exhausted from all the fucking she had just received. She could still feel all the semen around her body and Nami's pussy juices on her lips, as well as her ass and pussy leaking tons of semen from Luffy and Zoro.
"Best Christmas ever." Robin said, right before passing out.