https://www.youtube.com/watch?v=vs92C0Kalp8
That's another thing is to decide how Dinky is like. Because she's not a baby, she looks the same age as the CMC. Dinky doesn't have a cutie mark she should join the cutie mark crusaders. And then she can invite them over to her house with Derpy. "Your mom's pretty young ain't she, she's as old as mah sister." Dang Derpy just has such nice foalbearing hips, what a sexy sexy mare. Also Derpy is still trying to get Dinky to transition away from her teat milk. Also I think the Amethyst situation is terrible, the fact Derpy has to give up her child to some other mare who just screams at bread all day. Derpy is a perfectly capable mother. These are all important plot points.