One Piece Chapter 14, page 15-16: Chapter 14: RECKLESS

Mayor Boodle breaks free and charges down the street toward Buggy's base, screaming, "ARGHHH! PREPARE TO FACE THE MAYOR! BUGGY THE CLOWN!!" Nami watches him go, sadly noting, "THE MAYOR......HE WAS CRYING!!" Luffy smiles and says, "IT DIDN'T LOOK THAT WAY TO ME!" He then turns to Nami and declares, "I WON'T LET HIM GET KILLED! DON'T WORRY, I LIKE THAT OLD MAN!" Nami is exasperated, sighing, "THIS IS NO LAUGHING MATTER!" while Zoro grins, adding, "THINGS ARE FINALLY GONNA GET FUN! HA HA HA! YEAH!

Luffy turns to Nami with a determined grin and says, "WE'RE HEADED FOR THE 'GRAND LINE'! WE'LL STEAL THAT MAP BACK, AND THEN WE CAN GO THERE TOGETHER!" Nami, still frustrated, asks, "HOW CAN YOU JUST STAND THERE LAUGHING? WHAT DO YOU GET OUT OF THIS ANYWAY?" Luffy extends his hand and says, "JOIN UP WITH US! YOU WANT THE MAP AND ALL THAT TREASURE, RIGHT?" Nami hesitates, then firmly states, "I WON'T BECOME A PIRATE!" She reaches out and slaps her hand against his in a high-five, saying, "LET'S JUST SAY WE'LL 'JOIN FORCES'... WORK TOGETHER FOR A COMMON GOAL!!