Whenever Big Mac and baby Cherry Blossom would play, Cherry always wanted to be the hero instead of the damsel. And her Mac was always willing to act the part of the princess so their brave little daughter could save them. Cherry grew up calling Big Mac “Baba” (which I’ve learned is a gender neutral term for parent that also means “dad” in other languages) and understood fairly quick that her Baba liked being feminine just as much as being masculine. It was common to see Big Mac in a dress or makeup, so Cherry Blossom always wanted to help them with their look. Whenever the two played “princess and knight”, Cherry always did her Baba’s makeup and they would always coo over her work, no matter if the lipstick was smeared or the blush a bit too bright.
In this scene, all I can imagine is Big Mac acting helpless going “Someone save me from these scary monsters!” and Cherry just gallops in before striking a major hero pose and shouting “I’ll save you, Princess Baba!”