Another way to 'stand steadily'...

I've unscrewed the wheels from my inline-rollerscates, and replaced them with a piece of hardwood..

Then I've mounted these, onto a piece of plywood, with 1½ foot in-between them.

Now the idea is, that when wearing these, the person will be unable to move anywhere, as well as be unable to close the legs...

It's probably possible to use a pair of skiing-boot in the same manner, as rumor has it, that it's possible to 'mal-adjust' the bindings, so that they'll NOT give in, but that's something that I know absolutely nothing about ( But if you make the attempt I'll be happy to receive information of course ! )

However: Be cautious, when satisfying your masochist in this contraption, as the strain on the ankles will be dangerously big, in case your partner tilts..!

How the situation might develop, if you tie her breast bondage to a good hook in the ceiling, upon which you apply the bondage-stick horizontally, and finalizes the project by inserting a buzzing dildo into her rubber panties....Well, that's for you to find out !