I have been playing around with multiple aneros models for a couple of years now. I have enjoyable sessions and can get involuntaries but never had a hfdo or hfwo or supero. I try my best to not stimulate my penis but eventually I lose arousal if I don’t. Most of the time I end up finishing off with masturbating when it’s time to wrap things up.
Earlier this week I decided to see what would happen if I jerked off with an aneros inserted to the point of edging then letting my hands go then focusing on moving the aneros with my pelvic muscles and enjoying the sensations. I ended up squirting/leaking cum which felt like a mild traditional wet orgasm, however I quickly realized I didn’t lose arousal or sensitivity and my penis was still hard. I decided to try it again and within a minute I could do it again, then I did it a third time within another minute. Each subsequent time I leaked less but it still felt amazing. After that I decided to see what happened if I didn’t stop jerking off when I got towards the edge and had I had an explosive traditional orgasm and at that point the refactory period kicked in and I ended the session.