You decide that you would be the older step-sibling from now on, you aim the wand at her, but at last minute she notices you and stands up, this causes you to miss her head and hit her in the vagina.
You assume nothing different would happen, but you were dead wrong. She loses the stability in her legs and she falls on her butt, then all of her clothes except for her panties disappear, then the panties start changing, they become thicker and more padded and soon it was a diaper meant for a teenager. Now that the diaper was on it seemed as if her mind had been changed and she was now crying on the floor. Just then, your step-mom comes into the room, "Hey, can you look after Samantha tonight, I forgot to higher a babysitter" "O-ok" You respond stuttering, and with that she left leaving you with Samantha, she crawled over to you and tugged on your leg, "Me Hungry", you think for a minute before aiming the wand at your chest and out sprout a pair of breasts, you take of your shirt and Samantha latches onto a breast. The world was quiet for a minute until, Someone walks in, who is it?