Curiosity..... tug o' war?

Yeah, that sure looks like tug o'war. My cock does the same when using that method. That method seemed to have ramped up my prostate sensitivity but has since taken a backseat to the do nothing approach one my prostate began to awaken. The do nothing gives me full body orgasmic sensations while the tug method gave a more localized traditional orgasm sensation albeit strong. Both have their bennies.

ah i see, so its all control were seeing, nothing involuntary? interesting!

Well, what I do is flex my PC muscle to lift high and hold it, then I slowly contract my anus inwards. At a certain point of muscle fatigue and when I hit a certain hold combination (strength and depth of each individual contraction) my muscles begin to quiver. At first the quiver is smaller as you can see in his video (direct shot). A lot of that initial is internal quivering which is manually being held but the quivering is becoming involuntary. It's like holding a weight out in front of you. Eventually your arm and body begins to shake with effort trying to maintain the hold. But as I hold this position with my PC and anal musculature the quivering gets a longer stroke to it to where my dick starts to bounce and my anus begins to stroke in and out which bumps my prostate. Precum begins to flow and orgasmic sensation occurs. At times my cock will harden and the muscles inside try to clamp which is very pleasurable. Sometimes the bounce gets very intense and it feel like my dick is trying to lengthen and lurch while the tug o' war is going which can lead to a great orgasm. However, this method seems much shorter lived than the do-nothing approach which I can do for hours and bring about sublime and pleasurable full body orgasm sensations - which in the long run feels better and is a more refreshing experience.

So, the dick jumping is actually involuntarily happening as a result of the voluntary effort to keep a specific strength and depth held on my PC and anus musculature. As my muscles fatigue I may have to hold my anus a little deeper and then begin to slowly add a bit more lift to my PC muscle which triggers the bounce again where I try to hold it just at that position to where it goes out of control nuts.

For me to achieve this holding muscle i sort of need to pump my cock from the inside, which is hard because it kinda makes me notice my dick a little too much, I've done this technique before but I've never really felt pleasure from the spams for some reason.

Are you lying down when you do this? i wonder if thats a factor...

I know if i do this technique and tense my legs hard at the same time i can ejaculate hands free, which of course is nice but not the desired goal.

interesting discussion as I have just started trying the contraction method again. I had some good results the other night. Holding contractions seemed to make the aneros move more and harder compared to the do nothing. Wondering if this is the case with others as well? I'm also starting to question if I really even get the tug of war going on. I can feel the device moving but is the pc muscle moving too? I'm not sure, right now it only feels like my anus muscles moving.