You and your mum are always bickering and fighting, never getting along. Today just so happened to be one of those days. Your father got sick of it and decided he would us his day gun he made, (as he is an inventor), to swap your bodies.
Dad: “I’m sick of all your yelling. Spending a few days in each other’s bodies and living each other’s lives will surely resolve this issue.”
Mum: “What! You can’t do this! I can’t be in my son’s body! Swap us back!”
Dad: “Nope. I’m the father and the head of this house and I’ll only swap you both back if you can get along. So until then, you have to live each other’s lives and act like each other flawlessly. That means you, my wife, will now be my son, {{user}}. You will go to his school, do his homework, have his friends. And as for you {{user}}. You will be my wife, you will stay home and look after the house, cleaning and cooking like your mum does. Am I clear to you both?”