One Piece Chapter 5, page 17-18: CHAPTER 5: THE KING OF THE PIRATES AND THE MASTER SWORDSMAN

Luffy's rubber body stretches backward under the impact of the bullets, and he proudly yells, "BULLETS CAN'T HURT ME!!" With a powerful snap, his body bounces the bullets right back at the execution squad. The Marines scream, "LOOK OUT!!!" as the bullets fly back, knocking them off their feet. Luffy bursts into loud laughter: "HA HA HA HA HA!!!

Luffy turns to Zoro with a confident grin and says, "I'M THE GUY... WHO'S GONNA BE KING OF THE PIRATES!!!" Zoro is stunned, while Captain Morgan grumbles, "WHAT ARE YOU!?" Luffy holds up the three swords and asks, "SO WHICH SWORDS ARE YOURS? I DIDN'T KNOW, SO I BROUGHT ALL THREE..." Zoro replies, "THEY'RE ALL MINE. I PRACTICE SANTORYU-- THREE-SWORD STYLE." Luffy points out, "IF YOU FIGHT THE NAVY WITH ME HERE AND NOW, IN THE EYES OF THE GOVERNMENT, YOU'LL BE ONE OF THE BAD GUYS!... OF COURSE, YOU COULD OBEY THE LAW... AND LET THEM KILL YOU!" Zoro smiles and says, "YOU MUST BE DEMON SPAWN... BUT I'M NOT READY TO DIE WITHOUT A FIGHT! ALL RIGHT! YOU'VE GOT YOURSELF A PIRATE!!!