"Alright Maddie! Time to prove I'm a mind controller!" You stand up and strike a pompous, arm-crossing pose.
She ignores you.
"...I'm going to make you slap yourself!" You say.
She ignores you.
".......prepare yourself." You point at her.
You wait a moment.
You wait another moment; you don't really want to inflict pain on her.
~Slap yourself on the cheek~
"Ow!" She grunts. "There? See? I slapped myself! You're a genius. Are you happy now?"
Apparently, she still thinks she did that of her own accord, and thus assumed she was doing it to 'satisfy' your 'dumb belief'. You're going to need a little bit more convincing.
~Slap yourself on the cheek~
"OW ugh!!" She closes her laptop. "See? You toooootally can control my mind. Now please leave me alone."
"But Madison...I didn't say I was going to make you slap yourself *twice*, now did I?"
She looks at you confusedly, sitting up and folding her legs, putting her hands in front of her diaper.
"...what do you mean?"
"Why did you slap yourself a second time?"
"Because... I... don't..."
~Slap yourself on the cheek, and you will not feel like it is your choice when doing so~
"OWW! Ahh!!" She yells, starting to look scared.
~Very gently flick your nose, and you will not feel like it is your choice when doing so~
She gasps as it happens before her eyes.
"S-stop! What are you doing!??" She frantically scoots back on the bed, falling off; her fall very slightly cushioned by her diaper.
"Don't be afraid!" You walk around the bed to restore eye contact with her. "In fact, I'll MAKE you not be afraid."
~You aren't very afraid at what's happening right now, and you will feel confused as to why you suddenly aren't as worried~
Madison consciously notices her breathing and heartbeat slow down to normal rates. She curiously stands up and adjusts her shirt.
"Welcome to the truth, Madison." You say, sitting down on the bed next to her. "The facts! The true facts."
~Sit on the bed beside me. It won't feel like your decision~
"I can control people's minds." You continue. "I just got this power earlier today, and wanted to see who I could test it out on, and thought your house was a good place to start."
Madison looks down and swings her feet back and forth.
"I knew it! Something was really weird about you. You MADE us all like you, as part of your trick..."
"Yep!" You smile, raising your hand and petting her head. By now, her 'general' approval of you was coming back into effect.
"It's weird, because I still kind of like having you here." She blushes. "I still feel like I know you, even though I don't. It makes me really mad, but also not, but also.... but--"
"Well anyway, the point is, it's totally my fault that you wet yourself earlier, and I hypnotized your parents into thinking you should wear diapers, and that I should take care of you."
"So...are you going to make me pee myself again??" She said, scooting away from you once more, angrily avoiding eye contact.
"Well actually, I made it to where you have no control of your bladder or bowels; you'll pee *and poop* yourself all the time from now on!"
"WHAT??!??" She leaps to her feet and stares over at you with as much hatred as she can produce. "Did you really do that?!?"
"Yes." You look back at her. "You'll need to wear diapers all the time."
"WHY???" She pouts, starting to cry. "Why did you do that to me??" Her eyes well up. "Please, fix me! Undo that! Undo EVERYTHING! But at least, please undo that part!"
Over the course of like two minutes of this, she breaks down by your feet, begging.
"Please... please..." she says, running out of steam.
A few minutes follow of her just laying down, curled up by your feet, occasionally sniffing. That is until she grumbles, and gasps. She screams.
"No! NO nonononono no!!!" She gets up on her knees and holds her legs together, but it's too late. You can't see it for yourself, but in a few seconds, you can smell what Madison just went through.
Her sniffles accelerate, and then fall back into sobbing. She collapses on the floor.
"PLLLLLLLEEEEEEEEEEEAAAAAAAAAASSSSSSSSSSEEEEEEEEEE!!!!!!" She bursts out some combination of a cry, a yell, a moan, and a howl. "Make me normal! Please! PLEASE!"