I recently learned that my husband has long had ENM feelings, so we've been exploring opening things up sexually to other people and exploring the BDSM world. We've both discovered and been enjoying our kinks. We have a fantastic marriage with great communication. He's told me explicitly that he has no jealousy or insecurity when it comes to sharing me sexually.

And then last week I discovered a great guy who is into mental domination. He's in another country from me, so this relationship with him would be online/phone and never in person. But having said that I've heard that it's not uncommon for feelings to develop in the D/s relationships that are long-term. I have no problem with this idea as I've long known that I could easily love more than one person at a time. Each relationship would be different, with my husband being my primary or nesting partner and the dom... another kind of partner. My husband also understands the nesting partner/play partner idea. I'm not sure but maybe the issue is that a long-term dom would be something more than a play partner.

So in talking with my husband over my feelings about the dom, the excitement and occasional nerves, he's said that he's both happy and excited for me, but also is having twinges of jealousy. I do NOT want to do anything to make him feel insecure. How best can I navigate this new dom relationship while not making my husband feel threatened?