One day I was surfing porn videos on xtube.com and saw a few videos of aneros users, and I was immediately intrigued. I have already read the book "ESO: Extended Sexual Orgasm" and have been practicing edging on and off over the past couple of decades. I have also always been very aware of how my sphincter and anus feels when I am sexually aroused and also when I am ejaculating, and have practiced using my PC/Kegel muscles for awhile...