Spectrum Light, the third oldest child of Rainbow Dash and Soarin, is tired of dealing with her 6 annoying siblings and always being scolded by her parents. Since she is the daughter of two Wonderbolts, she is destined to be one, just like the rest of her brothers and sisters. But being a Wonderbolt is not on her checklist.
This story inspired me from "The Little Mermaid: Ariels Beginning", some of these characters in my story may belong to http://shrapnelleader.deviantart.com/, http://www.fimfiction.net/user/cmdrhellyea, and http://kilala97.deviantart.com/,
Chapters (2)
Very interesting and very nice intros to the children
Hope to see more soon!
-Dawning Dusk
Kant what to read it im staying at my sistsers house
she is so annoying she hats it when I use her computer 
if this is still continued, u should really set it for incomplete
ok I got some time to read it
but is this a complete story cus if it isn't you should set it to incomplete 
it is good
Once again you have piqued my interest :-)
-Dawning Dusk
Please do go on
No offense, I know this is your first story, but an editor would probably make this story pretty great. That, and a pre-reader, just to make sure the characters, plot and such are in order (that they make sense).
I've noticed little grammatical mistakes, mostly the wrong version of the word were meaning to use. That said I think that you should probably expand on the characters a bit more, their descriptions when in my opinion were a bit lacking. I'm actually enjoying the story, but in my opinion you aren't doing much with the characters (I find this especially problematic when you have more than 3 in the same place). No offense, but you haven't even hinted at what Spectrum wants to be other than she has no interest in being a Wonderbolt, what does she want to be? Also from the age descriptions you gave I am going to assume most of the characters have cutie marks, you really didn't mention what anypony's cutie mark was when presenting the characters.
4577151 I know I'm still working on that
4581442 I know this might sound a little callous, but maybe you should think about rewriting the story from the ground up before the problems get to out of hand. I like the story, but in my opinion you probably have too many characters to actually be able to focus on the one you intend properly and maybe it would be a good idea to lower the age bracket of your main character to somewhere closer to where it is believed the Mane 6 of the series proper have been posited at around the start of the series, Doctor Wolf has video on youtube asking the question as to what the ages of the Mane 6 are.
While I enjoy the concept you're presenting you might want think the story through a bit before moving on, try writing out a set of guidelines on where you want each chapter to go, it would also be good idea to write out profiles for each of the characters as they are in your story (the profiles would be more for your benefit, seeing as none of the readers would have access to them if didn't post them, so that you can keep the character within the archetype you have decided for them, at least at the beginning, after a while you can write how their personalities change and try and write within the confines of the story as to how or why they had the change. You wouldn't even have to make the profiles very long, just a paragraph or two in regards to what you want them to look like and behave). I know that it all sounds drastic, since only the second chapter is up, but sometimes you need to tear down a story before its finished to tell the version you want, I did the same to one of my earlier projects that I'm still working on and I'm telling you now an early revamp of an original story is better than one that feels forced on you by the readers, or yourself, that comes much later during production.