I have really been reading a lot of the posts and the wiki lately. After following the good advice offered I have had some violent involuntary leg shaking, legs alternately bouncing. And when I contracted, my legs would bounce in rhythm and hips would start involuntarily thrusting. And the prostate felt like it was getting larger. At first I thought I was getting somewhere, but there was no pleasure. It seemed like it could go on forever. I saw "Large muscle quaking (no pleasure)" in the milestones in the wiki. Is this what it is describing? Or am I going in the wrong direction?