I bought the aneros prograsm because I thought that the size would work for me – and it indeed does! The size seems perfect for me, very filling, I don’t feel I bought the wrong one as I’m experienced in anal play. I just seem to have trouble with the clenching process. My first session wasn’t perfect, but I don’t at all go in with high expectations I just relaxed and did a few contractions. I am just wanting some beginner advice, how long to wait and how much effort I should put into the contractions. Are there any positions which are particularly magical? For me the knees down and lying down seems most effective, but I’d like to try others. Would love to hear if given that my first session was ok (but I had to kind of vibrate the thing with my hand, and rub my dick a bit, so a more conventional orgasm) that it is possible for me to get there?