This lora does pretty well reflecting the realistic movement of a ??????? machine or sexmachine, which is the keyword I coined in this lora. Still I haven't tried out t2v and please leave your feedback.

The standard invocation of the lora goes like:

sexmachine at the bottom. The sexmachine is engaged with her ?????? and thrusts back and forth within. She shakes upon impact

You can add adv. like violently, quickly, but I don't find it to have too big of an impact.

You can use it in conjunction with many other great community loras and produce interesting results. I have tried breast bounce and my own squirting ?????? at 0.5~0.7 and they work together very well. Examples attached.

If the "sexmachine" is just a ????, the lora will try to complement the picture by imagining a machine with a flesh-colored ????? end, which is pretty good and what I want honestly. Sometimes it produces unexpected results.