Mother’s Day

So what if a young girl’s class bring their moms to school...and it turns out her mother is the most powerful superheroine in the world?

Oh, I like this idea!
I’d does sound like it’s a rather short story to me though, unless there is implemented other ideas/elements.

Coming late to the discussion, but how's this for a plot twist: Another of the kids brings their supervillainess mom, who is the superheroine mom's archenemy. They've never known each other's secret identities before, but over the course of conversation, they recognize each other just enough to both figure it out.