There's often confusion about the role of being a dominant in a relationship, and especially a BDSM relationship. If you're confused about the responsibilities of being a dominant in BDSM lifestyle, then you need to read this.
Before we go through this, it doesn't matter if you identify as a submissive, dominant, or even a switch, we are highly recommending that you do read the responsibilities on being a dominant, as we explain
You will need to start of gradually. Ease into it by wearing the device for a few hours at a time, and then building up from that. You need to let him know that you will need an adjustment period in order to bring chastity into your relationship.