So, let's say i want to start in this, but not take it way too far(as in not take a dildo up my ass but i could go along with nipple play), just out of curiosity, is there a beginners guide or something? Can I start with a flat one? Is there a way to buy a cage overseas in a discrete way? I was looking at some at amazon but...it would be awkward to have the delivery staff look at me while receiving that, not yo mention amazon would probably begin to display recommendations about it