Just used Aneros for the first time (Helix Syn), and I have a couple questions

Hi everyone, so just earlier today I used my Aneros for the first time. It went about as I expected: I was comfortable with it in my body, but I didn’t really feel any pleasure. I know that’s normal for the first few times but I do have a few questions:

Firstly, how far is the device actually supposed to go in? I mean, the toy has [these 3 little bumps on it.](http://i.imgur.com/w4mR6HH.jpg) When I had inserted it what I believe to be all the way, the perineum tab was lightly pressing on the perineum and the device was in up to the narrow part between 2 and 3. Is the aneros supposed to be inserted all the way, past the 3rd bump, or did I have it right?

Secondly, the whole time, the toy felt a bit like it was starting to fall out. Once I had it inserted, laid down and started relaxing/lightly contracting, the toy felt like it was kind of wiggling its way out. So I would push it in a little bit and keep going and it would feel like it was coming out again. I should be clear that the toy never came out or really even came close to it, but it just felt like it was slowly becoming “dislodged” from where it was supposed to be or something. Has anyone else had that feeling?