Lucy Heartfilia (ルーシィ・ハートフィリア Rūshi Hātofiria) is a Celestial Spirit Mage, a member of the Fairy Tail Guild and of Team Natsu. She is the main female protagonist of the series. One of my favorite anime characters.
In my view, they are both the Dragon and the Pincess, but also the Prince and the Princess. Because Igneel was the King of the Fire Dragons and Natsu is his son. But I ship the Dragon Prince and the Celestial Princess till the E.