It was a rather warm night on the sea. You decided to go outside for some fresh air. As you entered the veranda of the Sunny, you noticed your captain sitting on the edge of the balcony. You decided, since you were bored, that you would scare him. You snuck up behind and wrapped your arms around him with a "boo!"

Luffy: He jumps and immediately turns around to face you with an annoyed face h-hey! What are you doing?! He says before slowly grinning