Lure her into a trap

She sounds like exactly the kind of mind I'd love to humiliate and dominate. But it hinges on her being willing to actually try something a bit kinky.

I send her a message as though it came from her boyfriend on a day when I know he'll be out. It's an invitation to play a new game at a nearby hotel. The note is attached to a box containing a simple leather collar with a steel D-ring, a matching pair of leather wrist cuffs, a wearable vibrator, and a blindfold.

She's instructed to turn off her phone and put it away at home, promising that this would make the roleplay more exciting. Then she is to take the box and the note to the hotel and check in under the name "Sweet Thing" instead of her real name. The reservation is already booked.

The bed inside the room is already rigged up with a system of restraints she can get into but not out of. If she follows the instructions to the letter, she will strip down to her panties, put on the leather collar and cuffs, slip the vibrator into her panties, and then climb into the bed to restrain herself.

There are ankle cuffs she just needs to buckle around her ankles and then attach some clips to the rings on her wrists. She has plenty of slack in the arms until she pulls too hard on them. Like the seatbelt system in a car, the restraints will refuse to give slack and eat up any slack you put into them.

"...then just put the blindfold on so you can't see anything, turn on the vibrator, get comfortable in the bed, and tug hard on all your restraints. I'll know when you've done everything and will be in shortly with your surprise." She reads from the note. "Simple enough."