Welcome again to all our newest members!
Tmordan brought up a good point about wanting his bf to be a bit more into BDSM without becoming his Master. I am sure there are a lot of new subs out there wondering, "what on earth am I getting myself into?" RELAX! It is up to YOU and your partner how far and how fast you want to go. Take it at a level and a degree you feel safe and comfortable with. Like any new thing, there will come a time when you will want to test your limits ( or have someone else test them with you ). That is normal and part of the fun.
Most of us have some sort of "safe-word" system when playing. Just to give you an idea, I use a "streetlight" system. When I am whipping or tormenting a sub, she might be yelling "STOP" and it could be part of the enthusiasm for the moment, not to be taken at face value. If she says "yellow" I understand it is getting too intense, but she wants to continue at a slower pace. If she says "Red", that means STOP!!! I get her out of any bindings, we catch our breaths and talk about where we were, where we wanted to go, and how to de get back on track. Suppose she is gagged? I use a small red rubber ball that she holds in her fist. Usually she is glad to have something to clench. If she wants to stop, she drops the ball. No matter what I am doing, I can't miss a bouncing red ball.
Just remember to take it a step at a time. There is a lot of information here. Real people who had tried real things. We all learn from each other. So come on in, the water's fine!