Both my kids have always been close friends, sometimes experimenting with an “us against the world” attitude. They had their secret jokes and dialogue with each other about being Asian with white parents and living in a largely white community.
At ages five and three, they locked themselves in their Jack-and-Jill bathroom and cut Marisha’s hair. A couple years later, they rigged up a walkie-talkie and for weeks spied on their dad and me when we thought they were in bed.
Sometimes Marisha, being the younger, got the worst of the situation and she would pout. Once she got back at her brother by singing a song about him.
You can hear the song in this video: