Your mom sits down and smiles at you in a way that makes you feel even more uneasy than you currently do.
"I'm giving you a simple choice", she says as after a few seconds. "You can be my slave for the next two weeks, obeying my every command and letting me do whatever I want with you. Or you can spend the next two weeks inside my vagina".
"You can't be serious", you say with a mixture of shock, fear and disgust.
"Oh I'm very serious", your mom replies. "I'm going to punish you, by degrading you. Of course, I could just give you to Amy. And I'm pretty sure she'd treat you a lot worse than me".
"IT'S NOT FAIR!" You protest. "SHE STARTED IT. SHE HIT ME FIRST".
"That's still no excuse for hitting her", your mom snaps. "You're going to learn that men DON'T hit women. Ever. And you're going to learn that lesson in an unpleasant way. That way, you'll never forget that lesson".
"How do I know that you'll return me to my normal size when this is over?" you ask.
"You don't", your mom replies with a nonchalant shrug of her shoulders. "I may really enjoy having you for slave, and let you serve me forever. Or I may decide that I really like being your prison, and keep you inside my vagina permanently. You're just gonna have to hope that I'm in a forgiving mood two weeks from now. And before you ask, you won't be missed".
Your mom clicks her fingers. There's a bright flash of light by the kitchen door, and an exact replica of you appears.
"It'll act exactly like you do", your mom says as you stare at your normal sized clone in utter disbelief. "So like I said, you won't be missed. Now. Make your choice. Slave, or prisoner? Because if you don't choose, you'll be my slave forever".
Neither option is particularly pleasant. Especially since you don't even know that you'll be returned to normal at the end of it.
"Well?" your mom your mom asks after a couple of minutes.
"I'M THINKING!" you shout.
"You've thought long enough", your mom says angrily. "Choose now, or stay like that forever".
You have to fight the urge to hurl insults at your mom. Her volatile temper makes her unpredictable. And she already has a massive advantage.
So, with a defeated sigh, you decide to be her: