Helplessly tied to a table, a chair, or anything you can imagine... at the complete mercy of your partner, you'll endure a hard test. How many orgasms can you endure before you pass out exhausted and limp?  How many of them before getting out of your mind?. Your partner will find out. By the time he fastens the last strap, and even mutes your pleas if he wants (several of us enjoy the sound of your cries and your desperation), you'll there's no turn back. The restless machine will start to fuck you mad until he (or she) stops it.

Will you dare to try?

(As always, comments are welcome and encourages me to continue posting)