Some questions after the first session

Yesterday i had my first ever session with my new Helix Trident. I liked my session but i have some questions.

1. When my toy was in i noticed that it slipped down a bit. It wasn’t fully in. Is that normal?
2. How often should i concentrate my PC muscle? should i just pop it in and let its do its own thing or should i concentrate the muscle a couple of times?
3. Should you be erected while the toy is in? I rubbed my nipples in order to stay erected, but i think that this distracts me of the feelings of my prostate.
4. Can i masturbate “normally” after a session without my toy in?

Source: https://www.reddit.com/r/aneros/comments/98a7sm/some_questions_after_the_first_session/