I am still new. I know that. But I know the power of a collar and a D/s relationship. It is so incredibly intense, so overwhelming for the submissive, and it revolves around trust and communication.
I don't care about anyone's particular kink or whether they are in in monogamous or polygamous relationship. But please Be Honest! Communicate! Know enough about yourself and your own needs and desires before you enter a relationship to know whether you can do a monogamous relationship. Never put a collar on a sub promising they are the only one and then cheat on them. Because it is devastating. Every day becomes a lie. Every act of trust, every communication from you becomes suspect.
Subs open up everything - heart, body, mind and soul for their Dom. Doms have a responsibility not to fuck with that. Just be honest from the start. Lying and cheating is not okay.