Gritting your teeth, and idly wondering if your arousal was making you do some less than stellar decisions today, you repeated after her, gripping the Veil tightly in your hand. "in five minutes, I won't remember any of this, and I won't be aware of any of the wishes that have been said today."
She smirked. "Good girl. I'm glad you understand. It's going to be a lot more... Intense for you. And rewarding. That I promise." she giggles. "Oh and one last thing..."
You sigh. "I came this far... What is it? Quick before I forget."
She grins. "I want you to wish that you can only use the Veil if you're male. It won't be any fun if you can just undo whatever it is I do to you whenever you want... You really have to play the part of the damsel in distress... And I have to emphasize the distress part a little."
You nod. Annoyed." Fine. It's impossible for me to use the Veil while I'm a girl in any way, shape of form... There! Happy? "
Emily coos. "Extatic. Now run along 'big brother'."
You stand up, having to readjust yourself due to how prominent and obvious your aching erection was at the thought of being subjugated and emasculated by your sister...
Yet as you walked out of her room, your memories started to fade, leaving you only with your throbbing erection and a vague feeling of loss and confusion as to what had just happened. You clutched the Veil in your hand, assuming that you were so aroused because of the power you now held in your hand, and the thoughts of the many ways you could get back at your little sister probably got a bit... Kinky in some way.
You rushed back to your room and sat down at your computer. Opening up a blank word document, you titled it "Ways to mess with Emily". You spun around in your chair with a satisfied grin.
With the Veil in your hand, everything you'd say about your sister could change her, and you wanted to find the most humiliating way you could do this.
You started typing - Listing off thing you could say to protect yourself first and foremost, and planning the exact words to say so it couldn't be turned against you. The first thought that came to your mind was to make sure Emily had no desire to get the Veil anymore.
As you were about to type it down, you heard a few knocks on your door.
"Leave me alone Emily. I'm not giving you back the Veil." you shouted at her through the door.
Her sweet, innocent voice came through the door. "No worries, I have no reason to want the Veil... I mean, if I got it again, I guess I could think of a few uses for it, but I really don't care about it anymore."
You were confused. How could she go from desperately trying to get it from you, to indifferent? She must have been lying, trying to manipulate you so you'd allow her in your room so she could steal it from you. "I'm not letting you in. Now go, before I turn you into a..." the thoughts were multiplying in your mind. A slug? A horny lesbian? Make her think that she'd become dumber if she didn't finger herself constantly? The possibilities were endless.
"You don't have to turn me into anything. In fact I have a.... A confession." Emily's voice was muffled through the door, but you couldn't detect any trace of dishonesty.
After all, you had nothing to fear from her. If she tried anything, you could always say that she was a little baby and that'd be it! She'd be reduced to a naked, helpless toddler in an instant. "Alright, come in but keep your distances..." you say warily.