Creating Orgasm from Butt Shaking with Aneros Interted

I can't relate to those videos at all, my sessions are always motionless.
I've tried a few times to get grinding and limb-flailing working, just to see what I was missing, and while there were moments where they took on an involuntary-ness, the pleasure just wasn't happening.
I don't think I've had a Super-O yet (I think I've had momentary flashes of it though), but still have great sessions. For me, all the movement is subtle, fast, fluttery and located only around the aneros. Anything else I try falls flat.

to be honest i personally think the videos over exagerate on there sessions. i have fantastic sessions and from a 3rd person view nothing looks to be happening other than some muscle twitches which everyone on here would know what it means but still non the less.. i find it the same as in porn videos where the chicks freaking out during masturbation. on the lines of what you were talking about. its called grinding and i do it sometimes but not for very long. usually leads me wanting to super T which disrupts the mindspace.