So after looking at this image titled Loyalty and Determination:

I came up with two stories.
First: Is a story focused on how far RD will go for scootaloo. I thought of a story that pushes RD's loyalty towards scootaloo to the limit, and I don't mean scootaloo betraying RD's trust. I'm looking for a story were RD is constantly being tricked and convinced into not trusting scootaloo. The premise is to bring out the best and worst in RD.

Another thing I was thinking was RD is like an adoptive mother to scootaloo in the story but I don't know if this is entirely necessary, but it is up to who writes this.

Second: This story is based on how determined scootaloo. I was think of a bit of an undertale like thing were Scootaloo has to take on amazing tasks and makes friends in doing so. The scootalove bit is the challenge but I guess it can come from the friends she makes cheering her on. I've always loved stories were the underdog saves the day or something like that. I don't know, it's up to who ever wrights this to wright it their way.\

Bonus: But both ideas into one story id possible.

Have fun and go wild.