It's been two weeks since you wished to be your mom's vagina, and you're surprised to find that you actually quite miss it. You've had quite a lot of fun with the stone over the past two weeks, turning yourself into various animals, including birds, making yourself the slave of various good looking people, you even wished that your family was rich. It doesn't change the fact though that, despite her having sex with your dad, you were quite happy being your mom's genitals. In fact, there have been times when you've considered wishing to get back between your mom's legs and making it permanent. That or being her slave forever.
Today is one of those days. You've always had fantasies about your mom having powers and using them to make you her slave, mostly because she's so hot. But also, and you don't know why, because it's unnatural. Now you're sat on your bed, wondering to give up your life as a human, to become your own mother's pussy, forever. It'd be quite a big thing to give up being a human being, not the least because you'd permanently lose the ability to move. But you've never really liked the life you have. You don't have many friends, you're not one of the popular kids school and you don't really do all that much when you're not at school. You decide that, rather just to be turned into your mom's vagina, you'll leave it chance.
You nervously take the stone out from the drawer in your nightstand and take a deep breathe.
"I wish"; You say. "That tomorrow morning, my mom will have the powers that she had when I wished to be her vagina two weeks ago. My mom will either choose to make her slave, or to turn me into her vagina. Whatever she chooses will be permanent. If she chooses the first option, I will be her slave forever, and she can do whatever she wants with me, and treat in any way she wants. I will be indestructible and immortal. If she chooses the second option, I will be her vagina forever. This wish cannot be reversed".
You can't believe you've just done that. But it's too late now. It's 9pm now, and by this time tomorrow, you'll either be your mom's slave, or you'll be permanently trapped between her thighs, as her vagina.