Slow penetration

[needaboss]

I want to tie myself up so that I'm kneeling and my legs are underneath me. I would have some kind of bar across my lap so that getting up would be impossible. That's the easy part. Next I want to build something that slowly pushes a dildo into my ass. I could position it so that it forces itself into me when I'm tied up. I would want it to be very slow. Any ideas?

 

[KlaytonFrost]

Sounds dangerous. Better to find someone who's willing to do this for you than to try and build a machine that might go wrong or injure you, surely?

 

[Stella_Omega]

Sounds great! I'm thinking a step motor, and I only wish I knew more about them.

It's easy to make things go fast, it seems to me-- harder to make them go slow. Big clockwork stuff...