No Super O, but this was amazing for me. I was having a Do Nothing session with an Aneros in, and the shakes and shudders began pretty quickly (does it still count as Do Nothing if the Aneros is tapping the prostate?). Anyway, as things became more intense, I began trying to push the energy from my hips upward, and after a while, the shaking was being driven by my chest and shoulders, which was new to me. This continued, and I began to feel a vibration all over my body, including on my face. Of course, I was experiencing an unending series of P waves at the same time.
I had set a timer for one hour, and after it went off, I reached down to position the Aneros so that the arm was hitting my sweet spot more directly, and as I positioned it, I noticed that it slid around so easily, like I had twice the amount of lube in my rectum as I had when I started. It seemed as if I was actually secreting lube in there. After a bit more flexing of my pelvic muscles, I hopped in the shower with the Aneros still in, and I had the most powerful ejaculation of my life. It literally caused the Aneros to shoot out of my rectum like a missile. At that point, I was completely spent. It was nice to finally experience something as intense as some others in the forum have described!