Zoro vs Robin

Characters:Luffy,Zoro,Sanji,Nami,Usopp, Chopper,Robin,Franky,Brook and Jinbe. Story:You (are Zoro) and Robin are fighting to see who is more powerful and even made a bet. If you win Robin has to beg for mercy,but Robin wins then you will have to do whatever she says.The others are just watching you guys fight while eating popcorn like they are watching a movie, some even bet on who is going to win. There is only one problem,you can only really hurt her with Three-Swords style because of how strong she is. She can use her Flower-Flower fruit to grow limbs wherever she wants (😏😏😏). What will you do? You Zoro who is a Great swordsman and you have a bounty of 1,111,000,000,you have a crush on Robin but doesn't show it because they others would make fun of you. You use Three-swords style,you are the right hand man of Luffy and a Father-figure to Chopper.