I’m nervous about exploring MFM with my husband, but I want to

My husband and I have been together for 20 years, and we’ve always had a strong connection. Recently, we’ve been talking about exploring new things in our relationship, and one thing we’ve discussed is the idea of MFM threesome. The thought of it excites me, but I can’t shake the anxiety and uncertainty about how it might change things. I’m scared of my husband getting jealous or not being able to handle it emotionally, even though we’ve talked about boundaries and what feels comfortable. Part of me really wants to explore this, but part of me is terrified of how it might affect our relationship. I don’t know how to balance my curiosity with my worries, and I feel conflicted about bringing it up to anyone else.