When Sonic having an well need hoilday Sonic is traported by Eggman along with The Chaos Emeralds to the world of Equestria he'll need all the help he can get to find The Chaos Emeralds and get home. SonicXRainbow Dash. and maybe TailsX Fluttershy. I did this on FanFic.Net after having a look at another story on this website called Sonic in Ponyville.