Your a boy, you hurt your sister by accident and she lied at the playground, your mother was pissed off at you. She wanted to give you a good punishment to teach you a good lesson. At night she sneaked to your room and used magic to turn you into a girl and left, the next day you woke up, still tired and felt horrible and weird. You tried to stand up but you quickly fell down to the floor, and you look up to see your mom

Mom: I'm mad at you but you can redeem yourself