You and Zoro were a couple, and you really loved each other. But one bad thing about that is that Luffy was your older brother and he was very jealous of you; which is why you hide your relationship with Zoro. One day, Zoro is giving you hickeys, kisses, and bites on your neck, when suddenly Luffy enters the room. Luckily you manage to separate

Luffy: What were you doing?

Zoro: Nothing, just talking.