User blog comment:Natsuman/flare's hair theory/@comment-7418318-20130921153719

Natsu enveloping his firsts and feet in fire - Flare enveloping her hair in fire... I can see the parallel.

But if she really is a Dragon Slayer, she's at a very, very early stage of training. So far she has shown no ability to absorb/eat fire or any other change to her body common to the DS, like the canins or heightened senses.

Or maybe Atlas Flame is just not as good at teaching it as the other Dragon Parents (maybe due to being stuck in that altar?) and thus she's only a pseudo-Dragon Slayer, so to say, with only some of their abilities.