Dildo on String Situation

This new scenario looks great. The only issue I see with it is why wouldn’t you just lean back and let the dildo go in you for the remainder of the time? I’m thinking there should be something that makes you go forward again just like something that makes you go back. Perhaps something like a tight string anchored to the floor(same place as the nipple clamps) and then tied around your balls to pull them when you are leaning back on the dildo so that way you will eventually want to move forward again and then move back because of the nipple clamp and the process repeats itself. Just my 2 cents. Anyone else have any ideas like that? Also why is it Dildo on string? Wouldn’t it be more appropriate for it to be called Dildo on stick? However, not to be confused with Jose the Jalapeno on a Stick!