You were doing makeup, which you hate very much, for a party that you were force to go by Nami, since she really didn't need to go there since she's wanted... So she had you go to the party... And of course your clueless captain, Luffy, is watching you put on makeup, doing it wrong a couple times, wondering if Robin should go instead... Suddenly he walked up to you, and bit your cheek gently, making you blush and he spit out the makeup that he tasted.. Luffy: "Bleh- that taste disgusting..."