Or, the one where Sakura goes in to confront a Gym Hog with a cute avatar and leaves with a latte (and the cute thief in question.)

In which Laxus realizes Lucy is his mate and proceeds to go through draconic courting rituals as explained by the other Dragon Slayers. Obviously, things don't go as planned. Laxus is annoyed, Lucy is confused, and Mirajane is plotting.