"I've got some stuff to put on you," she says in her sexy deep voice. You can't find you words and just nod.
The first thing is a small collar. Almost a choker. It goes well with your girly attire and locks on with a click.
"Remember, you belong to me. Only I can remove it, and only I can do this." She demonstrates by doing something on her phone. A sharp, short but painful shock is sent out from your collar. You yelp and it makes her laugh. "Just be a good little sissy sister and I won't have to do that again. The collar also let's me know where you are and has microphones and cameras hidden in it so that I can know what you're up to at any time. Say goodbye to your privacy." Her grin was evil. Maybe you'd gone too far with her dominance. Even so, it was getting your miniscule peepee stiff. The next item would put a stop to that.
"You've been naughty all this time and humped your pillow like a dog whenever you got horny, haven't you? Well no more. This is to remind you who's the man in this relationship." She presents you with the smallest chastity cage you'd ever seen.
"Lift your skirt," Alex orders. You blush and can't bring yourself to do it. This is too far. You dry to bargen with her, but she doesn't give a fuck. She yanks up your skirt and pulls down your panties, revealing your tiny hairless dicket. You cry out in shame, then gasp as she covers your peepee with a bag of ice. Moments later when your dick is at its smallest form, she forces the chastity cage in and locks it. Even then, it barely fit.
"There. Now you can't be naughty any more. Aren't I a kind older brother to you?" She laughs and pulls out a third item from her bag. It's a large butt plug. You wine in fear as you see it.
"I knew you'd like it. Like the collar, I can control this one too." She does sometimes to her phone and your chastity states to vibrate, teasing your trapped dick. "Ups, wrong one," she laughs. The cage now shocks you instead. You know she's doing this on purpose to demonstrate her power.
She finally finds the right setting and the plug begins to vibrate so hard that it becomes blurry. You swollow in fear and excitement.
"This is to get you ready for my new mega strap-on collection. So, do you want to wear the plug to school for a bit first, or do you want to go straight to the fucking?"