User blog comment:Miskos3/Fairy Tail Chapter 419: The Message of Fire, Review/@comment-77.194.131.61-20150208112159/@comment-66.50.149.36-20150208192207

I think Hiro is planing on making Lucy master "Aquarius mode". I mean if you look at "Fairy Tale" the one shot that Mashima made to serve as the basis for fairy tail, you'll see a lot of similarities between the main characters. In that one shot, the main female character was named Elle, a young princess who could do water magic and was the daughter of Undine queen of the water kingdom. Undine's design is basically the same as Aquarius' except she wasn't a mermaid. The main male character was called Silver, a young hot-headed prince of the fire kingdom. The diference between him and Natsu is that Silver's hair was black and had horns.

I think that Hiro is definitely planning something for both Lucy and Natsu. I mean, I don't think at this point he would give Lucy some temporary water magic. I believe that maybe she will have to fight Natsu at some point, especially since he's "E.N.D" and what better way to fight a fire demon than with celestia water.