This is so cute!! They're both Pegasi, and they're super close friends. My only notes are that Rainbow might be a little to energetic with her, and their relationship might get complicated because of that. Overall, it's a cute concept, but needs ironing out.
7/10
Edits: Okay, I take back everything I said in this ship. Once I actually got some common sense knocked into me (Thanks for that, Sapphire) I realized this might upset their friendship. It's fairly equal as it is between the six, so if one started dating the other it might cause other friends to not hang with them as much, or they might split apart altogether.
Note: I got this opinion from SapphireSkyes so this book is not just my opinions now. We literally both have the same feelings towards ships, and man did I need a wake up call to remember this one. Sorry guys, my new rating is
2/10