Freak australian shepherd pup?

My australian shepherd pup is 4 months old and is not fluffy at all. I've seen lab pups with longer fur. she is a pure bred so i dont know why she's not fluffy! i know females typically aren't as fluffy as the males but she is just not fluffy at all. i still love her and it's not a big deal if she never poofs out, i'm just curious, will she ever get as fluffy as a typical aussie?