Ok, so I know what i want to write about. But... Its I can't figure out a name for the title, or the place that pinkie and rainbow get transported too. Its sort of like a heaven, and they meet a God like pony. But its not heaven at all, I picture it as a galaxy and even have a really cool name for the "goddess" a little help please?

How about Valhalla? It is like heaven in that it is an after life where god like people live.

The name could be related that as well. Something like "Chasing Rainbows" or "Following Rainbows or something similar. The title gets double billing as Pinkie chasing after Dash and also that to get to Valhalla in mythology you had to cross a rainbow bridge.

Wow. That's really smart! Thanks!