Admitting My Secret Desire During Marital Therapy

I've been married for nearly two decades now. Our marriage has always been solid and loving, but lately I've found myself questioning things I never expected to question. About a month ago, during one of our monthly marital therapy sessions, we were discussing communication and openness within the relationship. My therapist suggested that sometimes the best way forward is to be completely honest about every aspect of ourselves, even those parts we might consider shameful or hidden. This suggestion triggered something deep inside me. I've always been a private person, keeping my personal quirks locked away from others, including my wife. But during this session, an idea started forming in my mind. What if I opened up about the one thing that's haunted me for years? It was then that I realized, despite all these years of marriage and stability, there is still a part of myself that remains unexplored. I've had fantasies about being disciplined by someone else since before we even met. The idea of submitting to another person's authority and control has always intrigued me on some level that I couldn't explain until now. In my fantasies, it’s not about dominance or power-over; it’s more about the sense of security found in following clear rules and boundaries set out by someone who understands exactly what I need. When we discussed how to improve intimacy and emotional connection, an overwhelming urge hit me: I wanted to share my secret desire with my therapist. She asked if there were any aspects of myself that I felt might be holding me back or preventing full self-expression within our marriage. With a deep breath, I admitted the truth, that despite everything else we've built together, there's this unacknowledged part of me craving submission and discipline. The moment was intense but oddly liberating. My therapist listened carefully without judgment, encouraging me to explore what might come from acknowledging these desires openly with my wife once we're both ready. This experience has left me feeling conflicted yet strangely hopeful. I want to support her needs too in whatever ways she deems fitting. So here's my question for anyone who reads this: how would you suggest approaching such a topic within an established relationship without causing unnecessary worry or fear? Would it be best to lead with an open-ended conversation about personal desires and boundaries, or should I start by addressing specific fantasies first?