i like how u are thinking outside the box lmk when u find out
For real, I am thinking about doing some research too...
Milton, is that you?
i know it's milton. i just can't prove it yet
They are called piston machines I believe... u might find them on adult toy websites or bdsm sites not sure tho
Hypothetically where do you get this type of a machine for ummm.... research?
WHO SAID THAT?!